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PRESIDENT’S GREETING

Dear Colleagues,

Always committed to its constitutional goals and modern scientific perspectives, the Hellenic Society for Preventive Dentistry (Η.S.P.D.) once again this year focuses on the holistic approach of diseases (prevention and treatment).

Titled "Current aspects of Cariology”, this year's scientific event is exclusively dedicated to dental caries and will be held on 4, 5 & 6 October 2019 at the Nikopolis Hotel in Thessaloniki.

Aiming at even higher quality standards, this year the event differs from all the previous with regard to the following:

- It includes an even higher number of invited speakers, all of whom are recognized and distinguished worldwide.

- It is addressed to an international audience from Europe and the Middle East, and is not limited only to the local dental community.

- It will be twice as long in duration.

- It will include small group hands-on workshops, as a most popular training process.

- It will attract the active participation of various research teams with poster presentations, the best of which will be awarded (monetary award).

- It will provide participants with better services in even more modern and comfortable venues, along with a more highly professional organization.

For all the above reasons, we are inviting you to participate in our two-day event. We look forward to welcoming you, feeling confident that this event will go far beyond all expectations.

Best regards,

The President

Sotiris Kalfas

ΕΤΑΙΡΙΑΠΡΟΛΗΠΤΙΚΗΣΟΔΟΝΤΙΑΤΡΙΚΗΣΕΛΛΑΔΑΣ

HELLENIC SOCIETY FORPREVENTIVEDENTISTRY

www.epoe.gr, kalfas@dent.auth.gr

Address: Hydras 7, 546 39 Thessaloniki, GreeceTel. +306977301683, +302310440220, Fax. +302310924120

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BOARD OF DIRECTORS

COMMITTEES

President: Kalfas S.

Vice President: Topitsoglou V.

Secretary General: Davidopoulou S.

Treasurer: Pantelidou O.

Public Relations: Tsitsinia E.

Public Relations: Arhakis A.

Social Media Relations: Dermata A.

ORGANIZING COMMITTEE

Arhakis A.Davidopoulou S.Dermata A.Kalfas S.Pantelidou O.Topitsoglou V.Tsitsinia E.

SCIENTIFICCOMMITTEE

Arapostathis K.Kalfas S.Lygidakis N.Oulis C.Tolidis K.Topitsoglou V.Tsalikis L.Zouloumis L.

POSTER AWARD COMMITTEE

Birkhed D.Kotsanos N.Lingström PNyvad B.Topitsoglou V.

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.....................................................................................................................................FRIDAY 04 OCTOBER 2019.....................................................................................................................................

Pre-congress sessions

14:00 – 16:00 Hands-on: Silver Diamine Fluoride (Riva Star) Assist. Professor A. Arhakis, Assoc. Professor K. Arapostathis, Assoc. Professor O.B. Al-Batayneh

16:00 – 18:00 Hands-on: Pulpotomy and Stainless steel crowns on primary molars Assoc. Professor K. Arapostathis, Assist. Professor A. Arhakis, Assoc. Professor O.B. Al-Batayneh

18:30 – 20:00 Hands-on: Sielometry and Salivary tests Assoc. Professor C. Rahiotis

18:30 – 20:00 Hands-on: READING CBCT SCANS: What are we looking? What are we missing that should not be missed? Assoc. Professor C. Angelopoulos

.....................................................................................................................................SATURDAY 05 OCTOBER 2019.....................................................................................................................................

08:30 – 09:15 Registrations

Session 1: V. Topitsoglou – V. Anastasiadou.....................................................................................................................................

09:15 – 09:45 On the etiopathogenesis of the disease Professor S. Kalfas

09:45 – 10:15 The Nyvad criteria: a practical approach to caries diagnosis and treatment planning Professor B. Nyvad

10:15 – 10:45 ICDAS II and caries diagnosis Professor C. Oulis

10:45 – 11:15 Practical exercise on carious lesion diagnosis Professor B. Nyvad & Professor C. Oulis

11:15 – 11:45 Coffee break

SCIENTIFIC PROGRAM

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Session 2: J. Vouros – St. Arizos.....................................................................................................................................

11:45 – 12:15 Caries risk assessment in Periodontology, Orthodontics and Restorative Dentistry Professor D. Birkhed

12:15 – 12:45 Contemporary prevention and management of initial carious lesions Assoc. Professor S. Gizani

12:45 – 13:30 Caries prevention - The Scandinavian model and its secret. Professor P. Lingström

13:30 – 14:00 Caries related to restorations Assoc. Professor C. Rahiotis

14:00 – 15:00 Lunch break

Session 3: L. Zouloumis – M. Kostopoulou.....................................................................................................................................

15:00 – 15:30 Some aspects in the prevention of erosion and caries in the future Professor A. Lussi (sponsored by EMS)

15:30 – 16:15 Restorative materials: Preventive and therapeutic issues Professor G.Eliades

16:15 – 17:00 Contemporary restorative treatment approaches for carious lesions in permanent dentition Professor K. Tolidis

17:00 – 17:30 Discussion

Session 4: D. Apatzidou – A. Arhakis.....................................................................................................................................

17:30 – 19:30 e-Poster presentations (self-service coffee & refreshments during the poster session in the Hall Ballroom A & B)

19:45 – 21:00 Official Ceremony Μasters of Ceremonies: St. Arizos - M. Kostopoulou Welcome by the President of HSPD Professor S. Kalfas Greeting by the Authorities Nomination of Honorary members of HSPD Acknowledgement Ceremonial lecture “The Vipeholm Study - 70 years later” Professor Emeritus D. Birkhed

21:00 Party by the pool with buffet and music

SCIENTIFIC PROGRAM

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.....................................................................................................................................SUNDAY 06 OCTOBER 2019.....................................................................................................................................

Session 5: L. Tsalikis – K. Arapostathis.....................................................................................................................................

09:40 – 10:00 Updated guidelines by the EAPD on fluoride usage Assoc. Professor W. Papaioannou (sponsored by Oral-B)

10:00 – 10:45 Current views for restoring primary teeth with deep carious lesions Assoc. Professor N. Lygidakis

10:45 – 11:15 Developmental defects of teeth and caries Professor N. Kotsanos

11:15 – 11:45 Coffee break

Session 6: D. Sakellari – E. Tsitrou.....................................................................................................................................

11:45 – 12:30 Root Caries - Etiology, Prevalence, Treatment and Prevention Professor D. Birkhed

12:30 – 13:00 Approaching questionable carious dental surfaces: Management strategies Professor C. Oulis

13:00 – 13:30 Closing remarks - Poster awards Professor S. Kalfas

14:30 – 16:30 Hands-on: Laser in Cariology Professor K. Tolidis

SCIENTIFIC PROGRAM

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EP01 Effect of fluoride varnish with functionalized tri-calcium phosphate on post-orthodontic white spot lesions: a single-blind controlled trialA. Papadimitrou, O. Salamara, D. Mortensen, S. Twetman, I. Sifakakis, D. Koletsi, S. Gizani

EP02 Effectiveness of Riva Star in caries prevention and arrest: a systematic literature review.C. Balasouli, S. Davidopoulou, A. Arhakis

EP03 Dental caries experience of 12 year old children from Kochani city suited at the Eastern region of the Republic of North MacedoniaV. Ambarkova, A. Stamenkova, A. Vasovska, J. N. Stavreva, Ambarkov

EP04 MIH pilot study in National Health Center of Heraklion, findings and characteristicsMaria Alexaki, Emmanouella Maisi, Evaggelia Kefalogianni

EP05 Tooth wear epidemiology in Northern Greek adults . A cross-sectional analysis in 2 stratified clusters sample C. Theodoridis, E. Kaklamanos, V. Topitsoglou, G. Menexes, S. Kalfas

EP06 Gingivo-periodontal pocket caused by the fault contact point I. Robo, S. Heta, E. Bitraj, E. Gina, L. Mavriqi

EP07 Psychosocial effects on dental caries of adolescents: testing a conceptual modelK. Baxevanos, V. Topitsoglou, G. Menexes, A. Lazaridou, S. Kalfas

EP08 Pre-restorative crown lengthening: report of a caseE. Mitsopoulos, C. Doulkeridou, A. Petridis

EP09 A novel biofilm removal approach (Guided Biofilm Therapy) utilizing erythritol air-polishing and ultrasonic piezo instrumentation: a quasi-randomized controlled trialG. Antonoglou, S. Anoixiadou, S. Kalfas, I. Vouros

EP10 Two brothers diagnosed with caries and fluorosisC. Tatsi

EP11 Microbial indicators of caries activity in children A. Argyropoulou, S. Kalfas, N. Kotsanos

e-POSTERS

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EP12 Developmental anomalies of primary and Early Childhood Caries (ECC)A. Theocharidou, K. Arapostathis

EP13 Deep caries lesion management in a molar incisor hypomineralization case of a 12-year old girl. A case reportM. E. Zouloumi, K. Roussou, A. Arhakis

EP14 Alternative Interventions to Formocresol as a Pulpotomy Medicament in Primary DentitionJ. Sabarini

EP15 Dental treatment of a 7 year old child with mastocytosis: a case reportF. Anagnostou, A. Chatzigianni, K. Arapostathis

EP16 Treatment of fluorosis in mixed dentition: a case reportA-E. Zarkadi, C. Doulkeridou, A. Petridis

EP17 Safety resin-composite CAD/CAM materials. An innovative case report on primary molarsP. Mourouzis, K. Tsiveli, E. Andreasidou, A. Arhakis, V. Samanidou, Kosmas Tolidis.

EP18 Comparison of oral hygiene effectiveness between electric and manual toothbrush in children and adolescents: Literature reviewA. Papadopoulou, M. Koula, K. Arapostathis

EP19 Congenitally missing permanent mandibular central incisors inherited from father to son. A case reportE. Hiliadas, M. E. Zouloumi, E. Tsitsinia

EP20 Management of S-ECC in two young girls with Silver Diamine FluorideE. Chalvatzoglou, C. Charisi, A. Arhakis, K. Arapostathis

EP21 Dental treatment requirements of children with special health care needs treated under general anesthesia (GA) C. Mavromati, A. Panteri, E. Bogosian

EP22 Solitary Median Maxillary Central Incisor Syndrome (SMMCIS)-Case report of two siblingsC. Charisi, E. Chalvatzoglou, A. Arhakis, K. Arapostathis

e-POSTERS

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EP23 Comparison of Digital Radiography (DR) to Digital Subtraction Radiography (DSR) in detecting root canal density changesG. Trifylli, I. C. Mackie

EP24 Comparison of Digital Radiography (DR) to Digital Subtraction Radiography (DSR) in detecting periapical bone density changesG. Trifylli, I. C. Mackie

EP25 The clinical efficacy of erbium family laser and CO2 laser on caries treatment: A Systematic ReviewP. Ioannou, A. Tsaltampasi, O. Naka, D. Strakas, K. Tolidis

EP26 Tooth-colored materials for Class II restorations in primary molars: Systematic review and Meta-analysisV. Siokis, T. Michailidis, N. Kotsanos

EP27 Dentine hypersensitivity: report of a caseC. Doulkeridou, E. Mitsopoulos, A-E. Zarkadi, A. Petridis

EP28 A Survey of Dentists in the Management of Dentine Hypersensitivity: A Questionnaire Based StudyC. Exarchou, I. Betsani, D. Sakellari, D. Chatzopoulou, D. Gillam

e-POSTERS

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SPEAKERS CV & ABSTRACTS

Angelopoulos Christos, DDS, MS, PhD

Dr Angelopoulos is a graduate of the Aristotle University, School of Dentistry, Thessaloniki, Greece. His post-doctoral training includes a 2yr internship in Oral Surgery (Aristotle University) and a 1yr GPR program (Truman Medical Center, Kansas City). In addition, he has completed a 3yr Oral and Maxillofacial Radiology residency program at University of Missouri-Kansas City, School of Dentistry and he was awarded the MS degree in Oral Biology. His PhD thesis was on Cone-beam computed tomography and was completed in 2010. He is a diplomate of the American Board of Oral and Maxillofacial Radiology and a fellow of the International College of Oral Implantologists. He has held University appointments at University of Missouri-Kansas City, School of Dentistry (assistant professor 08/02-02/07) and at Columbia University, College of Dental Medicine (associate professor and director of Oral and Maxillofacial Radiology 03/07-12/10). Currently, he is an associate professor at the Aristotle University of Thessaloniki, Greece and an adjunct professor of Oral and Maxillofacial Radiology at Columbia University.

He is the past president of the American Academy of Oral and Maxillofacial Radiology (AAOMR) and has served as the Executive Director of this organization for the last 4 years. He has served in several leadership positions and committees at the AAOMR as well as IADMFR (International Association of Dento-Maxillofacial Radiology). Last, he has served as an Associate Editor of OOOO (the official journal of the AAOMR). He has published over 50 scientific papers and has spoken in several conventions and CE courses, nationally as well as internationally, on a variety of radiology topics.

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Al-Batayneh Ola B.

Ola B. Al-Batayneh, BDs (Jordan), MDSc (UQ, QLD, Australia), JDB (Jordan), FRACDS (PAED) (RACDS, Sydney, Australia) is an Associate Professor in Pediatric Dentistry at the Faculty of Dentistry, Jordan University of Science and Technology (JUST). She is currently Head of Department of Preventive Dentistry at JUST, and Head of the Pediatric Dentistry Division at King Abdullah University Hospital (KAUH). Ola is an Associate Editor in BMC Oral Health Journal. Her research interests and publications cover topics related to pediatric dentistry, such as eruption and dental anomalies, remineralization of enamel, early childhood caries and children with special needs. She has been a speaker at many local and international conferences on these topics. Details about her publications are available on her ORCID profile: http://orcid.org/0000-0003-1670-497X/.

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Arapostathis N. Konstantinos, DDS, MSc, PhD

Pediatric DentistAssistant Professor of Pediatric Dentistry DepartmentCoordinator of the Postgraduate Pediatric Dentistry Program Aristotle University of Thessaloniki, Greece

Konstantinos Arapostathis graduated from the Dental School of the Aristotle University of Thessaloniki, Greece (April 1989). Acquired the specialty of Pediatric Dentistry from St. Christopher's Hospital for Children, Philadelphia, USA (June 1994), received his PhD from the Dental School of Aristotle University of Thessaloniki (April 2004) and acquired the Masters in Laser Dentistry (MSc) from Genoa University, Italy (November 2014). He is the author or co-author of 51 publications, author of the chapter "Laser-assisted Pediatric Dentistry" (In: Coluzzi DJ and Parker S, Lasers in Dentistry, Springer International Publishing AG 2017) and has participated with over 150 announcements or lectures at scientific conferences. Has a special interest and experience in dental rehabilitation for people with disabilities as well as in research and clinical treatment of children and adolescents with dental phobia, anxiety and problems of cooperation in the dental office.

SPEAKERS CV & ABSTRACTS

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Arhakis Aristidis (DDS MDentSCI PhD)

Arhakis Aristidis (DDS MDentSCI PhD) graduated Dental School of Aristotle University of Thessaloniki, Greece (DDS) (1997). He followed the postgraduate course of Paediatric Dentistry in Leeds Dental Institute, Great Britain (MDentSCI) (1999-2001). He worked as a Community Dental Officer (CDO) (Paediatric Dentistry) in Community of Bradford, Great Britain (2001-2002). He holds his private dental practice limited in Paediatric Dentistry in Thessaloniki (2003- until now). He completed his PhD dissertation at the Department of Preventive Dentistry, Periodontology and Implant Biology of the Dental School of Aristotle University of Thessaloniki (2011). He is currently Assistant Professor at the Paediatric Dentistry Department (AUTh) and an active member of the European Academy of Paediatric Dentistry (EAPD) and the International Association of Paediatric Dentistry (IAPD). He is a member of the Board of the Hellenic Society of Preventive Dentistry (HSPD). He has done numerous of presentations in International conferences and Publications in International Journals regarding Dental Trauma, Saliva, Dental fear, and assessment of Dental fear through Saliva.

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Birkhed Dowen

Professor emeritus, Malmö, Sweden. DDS (1970) and PhD (1974). Assistant Professor in Oral Microbiology and Cariology at the Dental School in Malmö 1970-1988 and Professor and Head for Department of Cariology at Göteborg University 1989-2013. Published 310 articles in international journals and written 15 review articles/book chapters/text books within the field of diet and dental caries, e.g. in Scandinavian Textbook of Cariology. Have been tutor/mentor for almost 50 PhD students, including Sotos Kalfas & Peter Lingström. Have received two international prizes: 1) the Acta Odontologica Scandinavica Award in 2001 and 2) the IADR Distinguished Scientist Award for Research in Dental Caries in 2007. Presented >100 abstracts at international congresses, e.g. ORCA, NOF, IADR. Has been faculty opponent for 4 PhD theses in Norway and Sweden. Main research interest: caries diagnosis, risk assessment, root caries, dental erosions, caries prevention, sugar substitutes, fluoride toothpaste, mouth rinse solutions and varnishes.

Caries Risk Assessment in Periodontology, Orthodontics and Restorative Dentistry

Caries has declined in most industrialized countries since the mid 60th, mainly because of the daily use of fluoride toothpaste, but still there are many patients that are at risk. This lecture will focus caries risk assessment (CRA) at three different clinical situations, i.e. before and during: 1) periodontal treatment, 2) orthodontic treatment, and 3) extensive restorative treatment, e.g. crown & bridge work. There are many CRA models that can be used in the clinic. One of them is the Cariogram, which has been developed by Swedish researchers.

Root Caries - Etiology, Prevalence, Treatment and Prevention

People live longer today and many elderly keep their own teeth. By age and by daily tooth brushing, the root surfaces are exposed, which are more susceptible to caries than the enamel. This lecture will focus on various risk factors for root surface caries (RSC), including microbiology and saliva. The prevalence of RSC in different populations will be presented. Treatment and prevention of RSC are very important and the three cornerstones are: 1) use of fluoride several times/day, 2) diet and use of sugar-free products, and 3) plaque control, including professional tooth cleaning.

SPEAKERS CV & ABSTRACTS

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Eliades George

George Eliades graduated from the University of Athens, School of Dentistry in 1982 and earned his Doctoral Degree from the same University in 1985. He received his postgraduate education in Biomaterials at the University of California, Los Angeles (UCLA). For 12 years he served as Head of the Quality Control Laboratory of the Greek Notified Body for Medical Materials and Devices (EKEVYL). In 2000 he joined the University of Athens, School of Dentistry. Currently he is Professor, Director of the Department of Biomaterials and Dean of the School. He has given more than 450 presentations at national and international conferences, has authored 210 papers in peer-review journals, 18 chapters in textbooks, and he is co-editor of three international books. He is a member of the editorial board of 4 international journals, reviewer in more than 30 international journals and member/fellow in many scientific societies and groups. His work has been honored with 11 international awards including the 2005 IADR Wilmer Souder Award, considered as the highest distinction in the field of dental materials. His research interests are focused on the characterization of interactions between material surfaces and tissues.

Restorative materials: Preventive and therapeutic issues

Fracture and secondary caries are still recognized as major problems of aesthetic restorative materials. Current trends in designing materials are focused on strength and marginal-seal durability, developing self-healing and antimicrobial properties and establishing caries-inhibiting modalities. Glass-ionomers, with mainly preventive evidence-based anticaries effect, and bioactive cements promoting biological mineralization, have been used to modify resin composites producing strong hybrid restoratives and liners with therapeutic capacity. Nevertheless, the therapeutic effect of the hybrids has been greatly suppressed. The use of antimicrobial adhesives based on contact disinfection, is limited. New versions of Ca-releasing bulk fill composite restoratives have been recently introduced as amalgam alternatives, to be used without adhesives. However, the instructions for one product have been revised advising mandatory use of an adhesive. Apparently, modern materials still fail to balance the complex issue of aesthetics, durability and therapeutic response, since the latter requires a leachable component.

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Gizani Sotiria

Sotiria Gizani obtained her Dental Degree from the University of Thessaloniki and then completed her postgraduate studies at the Catholic University of Leuven (Belgium) where she successfully finished her training program in the specialization of Paediatric Dentistry and she also received the diploma "Master in Dental Sciences" as well as her doctorate (PhD). Since then, she has been working at the Department of Paediatric Dentistry in the National and Kapodistrian University of Athens, initially as a lecturer and later as an Assistant Professor. Recently she has been promoted to Associate Professor and appointed as the Chair of the Department at the same University. She has given many lectures in Greece and abroad, while she is the author of many scientific articles in international peer-reviewed and Greek scientific journals. She is also a reviewer in many of these journals. Since 1998, she has been elected at the post of Secretary of the European Academy of Paediatric Dentistry while she has been a member of the Organizing Committee of Clinical Affairs of the European Academy of Pediatric Dentistry (EAPD), for the last eight years. Her research interests focus mainly on new methods of oral health prevention, methods and materials of caries treatment in young children, management of initial carious lesions in orthodontic patients, epidemiology and patients with special needs as well as molecular techniques of microbial detection of the oral cavity.

Contemporary prevention and management of initial carious lesions

White spot lesion (WSL) development is a side-effect to treatment with fixed orthodontic appliances with a prevalence range between 2 and 96%, depending on the method and criteria for caries detection, time of onset and duration of orthodontic treatment, as well as patient compliance with advocated preventive measures. They can seriously jeopardize the esthetic outcome of the treatment. Although data indicate that these lesions have an ability to improve after appliance removal, they can be sometimes detectable even 12 years after treatment. The literature on prevention of WSL indicate that an application of a fluoride varnish around the bracket base every 6th week during orthodontic treatment is the most effective protocol, however, the effect of fluoride varnish on dental esthetics remains unclear. After debonding, several WSL are improved due to salivary remineralization within 2 to 6 months. For the WSL which are non-responders to this available biological strategy, two strategies are followed by the clinicians: remineralization (eg. topical fluoride, amorphous calcium phosphate or self-assembling peptides) or masking of the lesions (minimal-invasive measures, such as bleaching, micro-abrasion or resin infiltration). There is no firm evidence to support one therapy in favor of another. Most of the recommendations for the choice of management are based on clinical experience, best clinical practice and educated guess.

SPEAKERS CV & ABSTRACTS

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Kalfas Sotiris, DDS, Odont. Dr. (PhD)

He graduated from the School of Dentistry of Lund University, in Malmö, Sweden, where he received his Odont. Dr. (PhD) degree. In 1991, he was promoted to Associate Professor at the same School where he continued working. In 1994, he moved to the School of Dentistry of Umeå University, Sweden and became the Director of the Laboratory of Oral Clinical Microbiology. Being a Postdoctoral Fellow of the Japanese government, he worked as a Guest Researcher at the School of Dentistry of Tohoku University in Sendai, Japan, during 1991-1992. Since 2000, he has been working at the School of Dentistry of Aristotle University of Thessaloniki (AUTh) first as an Associate Professor (2000-2005), and in 2005 was promoted to Full Professor. He is the Head of the Department of Preventive Dentistry, Periodontology and Implant Biology at the Institute of Dentistry of AUTh. He has been a Member of the National Oral Health Committee of the Ministry of Health. He is the President of the Hellenic Society for Preventive Dentistry, and Member of various Scientific Societies. His research interest focuses mainly on issues of Oral Microbiology in relation to the aetiopathogenesis of caries and periodontal diseases. He has published about 95 studies in national and international scientific journals, and co-authored one book and many chapters in books. He has participated as a Speaker in many congresses, symposia and workgroups and has received various fellowships and distinctions.

On the etiopathogenesis of the disease

The etiopathogenesis of dental caries has been an issue of scientific argumentation for centuries and various hypotheses were proposed as new knowledge was acquired. The first hypothesis based on scientific experimentation and observation was introduced by Tomes and Magitot, more than a century ago. It is known as the chemical theory. It considered the carious lesion as the result of tooth dissolution by acids produced upon food fermentation "in the several parts of the teeth best adapted for their reception". More rigid evidence for the role of oral bacteria in caries was presented in Miller's chemical-parasitic theory. This theory together with the recognition of the dental plaque and its role in the disease founded the modern etiopathological concept. Two opposite aspects, the non-specific plaque hypothesis and the specific plaque hypothesis, dominated for years. The first one considered all plaque bacteria as potential pathogens while the second hypothesis supported the view of a few causative pathogens with Streptococcus mutans and lactobacilli being the chief culprits. The most recent hypothesis, the ecological plaque hypothesis, suggests the disease to be the result of a shift in the microbial composition of dental plaque towards a more pathogenic one as a consequence of ecological changes in the oral environment triggered by altered host conditions such as dietary habits. The term dysbiosis is also used to characterize the pathogenic symbiosis caused by the ecological shift. Thus, the disease is nowadays considered as a biofilm infection with commensal opportunistic microbes becoming the causative agents when the conditions of the habitat favor their pathogenic existence and activity.

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Kotsanos Nikos

Nikos Kotsanos graduated from Aristotle University Dental School in 1977, earned a PhD (on enamel caries susceptibility) from Bristol University, England in 1982, and was trained in Pediatric Dentistry at New York University in 1990-91. Since 1984, he has been teaching in Aristotle U, currently as Professor and Head of the department of Paediatric Dentistry. He is also in private practice (evenings). His name has appeared to date in 60 publications receiving 1000 plus citations and he has edited a Paediatric Dentistry textbook (in Greek) in 2015. There have been to date 25 paediatric dentist graduates from the post-graduate program he started in 2008 in Aristotle U, and five of them have won awards in European and World scientific congresses. He has frequently been invited to speak abroad (Amman, Bergen, Limassol, Tokyo, Okayama, Plovdiv, Seoul, Glasgow, Bilbao). His research interests are focused mainly in child dental behavior, dental anomalies including MIH, incipient caries and fluoride releasing materials, deep cavity management and pulp treatment of primary teeth.

Developmental defects of teeth and caries

Tooth quality is certainly one of the predisposing factors to caries susceptibility. In fact, at least since 1965, there have been books on ‘caries susceptible teeth’. In the following decades however, caries prevention has been focused primarily on effective oral hygiene measures including the use of fluoride. Recent findings show that dental defects, especially those frequently met in teeth with MIH and, even more recently, with Hypomineralised Second Primary Molars (HSPM) are important predisposing factors rendering those teeth highly caries susceptible. This presentation discusses current evidence on the incrimination of such dental defects and offers strategies for avoiding the implications of early heavy carious involvement of teeth with developmental defects in this sensitive young age.

SPEAKERS CV & ABSTRACTS

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Lingström Peter

Professor Peter Lingström graduated (LDS) 1986 at the University of Lund and received his degree of Odont Dr (PhD) in 1993 at the University of Gothenburg. He received Professor degree in 2008 from the Department of Cariology, The Sahlgrenska Academy at University of Gothenburg. Presently, Dr Lingström is Chairman at the Department of Cariology, but also holds the position as Head of the Institute of Odontology. He has produced more that 130 scientific publications within the field of cariology focusing on the dental biofilm, salivary risk patients, diet cariogenicity, dental erosion, preventive strategies and techniques for minimal invasive dentistry. He is an often invited speaker nationally and internationally and has participated in several national committees defining caries preventive strategies (SBU), defining National Guidelines within caries prevention and treatment (Social Board of Health and Welfare) and evaluating the different university educations within the field of odontology (Swedish Higher Education Authority).

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Lussi Adrian

Prof. Dr. Adrian Lussi works at the Department of Preventive, Restorative and Pediatric Dentistry, School of Dental Medicine, University of Bern. In the same department he was head of the Pediatric Dentistry Division for 11 years. He holds a master`s degree in chemical engineering from the Swiss Federal University of Technology, Zurich, Switzerland, a teaching license at college level with chemistry as main subject as well as a diploma and a doctorate in dentistry from the University of Bern, Switzerland. His research has covered several aspects of erosion, caries diagnosis and minimally invasive preparation techniques in operative dentistry. He has published over 400 articles, and he has edited or co-edited ten books.

Prof. Lussi received numerous national and international awards for preventive dentistry and caries research such as the Yngve Ericsson Prize for research in preventive dentistry, the IADR research in dental caries award, and the ORCA Prize for caries research.

Between 2011 and 2015 he also served as Managing Director of the School of Dental Medicine, University of Bern. And then until the end of 2017 he was Deputy Managing Director of the School of Dental Medicine, University of Bern.

Some new aspects in the prevention of caries and erosion

The prevalence and severity of caries is still high although it is preventable. It is important that diagnosis of dental hard tissue defects is made early. Besides dietary habit changes, optimized and efficient professional care as well as up to date home care measures are indicated. “Guided Biofilm Therapy” is a lately introduced possibility for a systematic professional care and e.g. optimized designs of interdental brushes for home care. Dental erosion as well as erosive tooth wear are becoming increasingly important when considering the long-term health of the dentition. Adequate preventive measures can only be initiated when the risk factors are known and interactions between them are present. Besides diet advise, modification of erosive food and beverages as well as modification of the acquired pellicle may enhance its protective quality and prevent dissolution of the dental hard tissues.

SPEAKERS CV & ABSTRACTS

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Lygidakis A. Nick

Nick A. Lygidakis is Consultant in Paediatric Dentistry, working in a private clinic in Athens and until 2016 as Director of the NHS Dental Centre for Children. He is also teaching in the postgraduate paediatric dental programs of the Universities of Giessen, Germany and Leeds, UK, in the latter being Honorary Reader (Associate Professor). He holds MSc degrees in Child Dental Health and Genetics and a PhD from London, Oxford and Athens. He has served as EAPD President and Secretary and HSPD President, being involved in the organization of a great number of European and Greek scientific, professional and CPD activities, including the ‘EAPD Hermes and Athena’ European programs that he first introduced.

He has 57 publications, with more than 1500 citations, 370 abstracts and more than 400 invited lectures in International and Hellenic Congresses and Seminars. He is Editor in Chief of the European Archives of Paediatric Dentistry.

Current views for restoring primary teeth with deep carious lesions

Contemporary restorative approach of primary teeth with deep carious lesions depends on the remaining healthy hard dental tissues and the possible pulp involvement, e.g. the presence of reversible or not pulpal inflammation. Composite resin restorations using contemporary adhesives are considered the best aesthetic restorations, while preformed metal crowns are only indicated for extended cavities. In addition, in cases of deep carious lesions leading to reversible pulpal inflammation, direct restorations are nowadays possible, following contemporary pulp protection and therapy techniques (direct/indirect pulp capping) aiming to maintain or restore pulp health and vitality. The last decade the use of biocompatible/bioactive materials (ΜΤΑ, Portland Cement, Biodentine, etc), has increase substantially the success rates of such techniques, although their success depends more on accurate diagnosis of the pulp involvement degree and less on the type of materials used. Finally, it is worth mentioning the recent development of composite resin materials not releasing Bisphenol-A, as they contain UDMA instead of Bis-GMA.

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Nyvad Bente, MPH, PhD, Dr. Odont.

Professor of Cariology and Endodontics, Department of Dentistry and Oral Health, Aarhus University, Aarhus Denmark

Associate Editor of Caries Research. Editor and Author of “Textbook of Dental Caries. The

disease and its Clinical Management”. 3rd Edition. Eds. Fejerskov O, Nyvad B, Kidd E. Wiley Blackwell 2015.

Research interests: Dental biofilms and oral ecology. Visual and tactile caries diagnosis (Nyvad criteria for classification of caries lesion activity and severity).

The Nyvad criteria: a practical approach to caries diagnosis and treatment planning

The caries decline has called for new caries diagnostic criteria that may be used by clinicians and researchers to monitor caries lesion dynamics over time, particularly at the non-cavitated level of lesion formation. The Nyvad criteria fulfil such purposes because they record the activity and severity of caries lesions. The Nyvad criteria are reproducible between and within examiners and have predictive validity, meaning that they can help to guide treatment planning. The lecture will provide an overview of the scientific and clinical background of the criteria and explain how the criteria a can be implemented in daily clinical practice. A visual test will finally illustrate the ease of use of the criteria.

For detailed information, see Nyvad and Baelum. Nyvad Criteria for Caries Lesion Activity and Severity Assessment: A validated Approach for Clinical Management and Research. Caries Research 2018;52:397-405. The paper is freely accessible on the internet.

SPEAKERS CV & ABSTRACTS

23

Oulis Constantine

Professor Emeritus Dr Constantine Oulis is a graduate of the Dental School of the National and Kapodistrian University of Athens, holding a Certificate in Paediatric Dentistry, a MSc Degree in Oral Biology (UAB-USA) and a PhD from the Dental School of the University of Athens. His contribution to the academia, the profession and research from the different posts he served is multifaceted, as founding member and President of the European Academy of Paediatric Dentistry (EAPD), member of the Advisory Committee for the Training of Dentists in EU (ACTDP), member of the Council of European Dentists (CED) and Chairman of the Working Group of CED for the Education and Professional Qualifications of Dentists in Europe, President of the Hellenic Society of Paediatric Dentistry and member of the National Committee of Public Health of Greece. His main research interests are in the areas of Public Health and Cariology in regard to oral health education and caries Epidemiology-Diagnosis and management.

Approaching Questionable Occlusal Carious Dental Surfaces: Management Strategies

Fissure sealants (FS) have been found more effective on high caries risk individuals and surfaces (if they are intact), with several Guidelines promoting their therapeutic effect. However, FS applied on patients with high DMFT scores have shown poor retention [Bravo et al., 1996], while the higher risk of the individual leads to higher number of failures with more reapplications and caries [Oulis and Berdouses,2009]. It seems therefore, that the effectiveness of FS on these high-risk surfaces of people who need them the most is contradictory, probably because the histochemical composition of the sealed enamel with incipient caries lesions is altered and exhibits more micro leakage and sealant failures due to compromised bonding. The purpose of this presentation is to elaborate on some new findings regarding the questionable for caries occlusal surfaces (ICDAS 1, 2 and 3) which might necessitate further investigations on alternative methods of enamel preparation and etching for better sealant bonding on such surfaces.

ICDAS II and caries diagnosis

The drastic decline of dental caries in recent years worldwide, mainly due to fluoride, affected the morphology of the lesions and the accuracy of the diagnosis, leading to a diversity of decisions by dentists. The difficulty in diagnosis combined with new conservative methods of prophylaxis requires the existence of a valid and accurate system for diagnosing the disease at the earliest stages. In our days the ICDAS II system fulfils this parameter and contrary to WHO DMFT / S index records the initial caries lesions (ICDAS 1 and 2), contributing to a timely and effective preventive approach. The purpose of this presentation is to present and subsidize the use of the ICDAS system and how we used it in our National Epidemiological survey and based on some clinical pictures to elaborate on some shortcomings of the technique in an attempt to converge and improve our decisions in daily practice.

24

Papaioannou William

William Papaioannou graduated from the Dental School of the Aristotle University of Thessaloniki (Greece) in 1992. Continuing in the postgraduate program of the Catholic University of Leuven (Belgium) he attained the degrees Master in Dental Sciences, Doctor in Medical Sciences (Ph.D.) and the specialization in periodontology.

He is currently an associate professor of Preventive and Community Dentistry in the School of Dentistry, National and Kapodistrian University of Athens. His research interests focus on the etiology and prevention of oral diseases, with special attention to oral microbiology. He maintains a private practice limited to Periodontology and Dental Implants. He has authored more than 70 papers in peer reviewed journals (such as Journal of Periodontology, Clinical Oral Implants Research, Anaerobes etc.) and has lectured in Greece and internationally. He is the Secretary General of the Hellenic Society of Periodontology and member of the Board of the Continental European Division of the International Association for Dental Research (CED-IADR).

Updated guidelines by the EAPD on fluoride usage.

Fluorides are the key element to successful caries prevention. Hence, one of the primary tenets of modern dentistry is that the daily use of fluoride should be a major part of any comprehensive preventive program for the control of dental caries, especially in children. However, regardless of the type of program, community or individually based, the use of fluoride must be balanced between the estimated caries risk and the possible risks for toxic effects of the fluorides. The use of fluoride is considered safe when proposed guidelines are followed, such as those updated in November 2018 by the EAPD in a workshop organized in Athens. As such, preventive programs should be re-evaluated at regular intervals and adapted to a patient’s needs and risks. For the majority of European communities, the EAPD recommends the use of an appropriate fluoride toothpaste in conjunction with good oral hygiene as the basic preventive fluoride regimen.

SPEAKERS CV & ABSTRACTS

25

Rahiotis Chris

Associate Professor (DDS, PhD, MSc) of the dept. of Operative Dentistry. He graduated from National and Kapodistrian University of Athens Dental School in 1996, earned PhD in Oral Biology at the School of Dentistry of the National and Kapodistrian University of Athens and Master in Science in Postgraduate Program of Operative Dentistry, of the same University. Since 2009, he has been teaching in National and Kapodistrian University of Athens, currently as Associate Professor of Operative Dentistry. He is also in private practice. He has published 66 scientific papers in Greek and International scientific journals and has made 120 scientific announcements in Greek and International conferences. He is a reviewer of 17 scientific journals and is a member of several scientific societies. His work is recognizable internationally as evidenced by the 1100 citations and relevant qualitative indicators ( IF : 79,844 and h-index: 18). He was a co-president of European Organization for Caries Research.

Caries related to restorations

Caries related to restorations or secondary caries are the most frequently stated late complication of a dental restoration. Such lesions are found adjacent to restorations and have been traditionally thought to be associated with gaps between the tooth and the restoration. However, increasing evidence indicates that many “secondary” lesions are in fact primary caries lesions adjacent to restorations—that is, not caused by a leaking restoration. The cariogenic biofilm of secondary caries is similar or identical to that of primary caries, and comprised mainly of Streptococci, Lactobacilli and Actinomyces naselundii. The diagnosis of caries lesions related to restorations, however, has received lesser attention, while it might in fact be decisive both to estimate the true burden of the disease and to provide appropriate management for presumable lesions. Currently, there is no standard to be recommended for performing such detection, with dentists using a variety of methods, with even greater heterogeneity of subsequent treatment decisions.

Based on the frequency of restoration replacement due to caries lesions and the costs associated with this cycle of re-interventions, increasing attempts are made to reduce the propensity of restoration materials for secondary caries development. The use of alternative restorative materials possessing potential anti-cariogenic capabilities has often been suggested. The basic clinical dilemma when the caries related to restorations occurs is whether the restoration will be repaired or replaced. The aim of this lecture is to discuss the etiology, the diagnostic tools and the management of prevention and treatment of caries related to restoration lesions.

26

Tolidis Kosmas

Dr Kosmas Tolidis: professor at the Aristotle University of Thessaloniki, DDS (1989), MSc (1993), PhD (1996), LSO (2016). Graduated from the Dental School of Thessaloniki, took his Master’s Degree on Pediatric Dentistry at the University of Bristol, his PhD from the University of Thessaloniki on Dental Materials with excellence and his Mastership on Dental Laser at the University of Aachen. At the moment he is Professor and Head of the Dept. of Operative Dentistry at the Aristotle University of Thessaloniki, Coordinator of the Postgraduate Program of Operative Dentistry-Direct Esthetic restorations and President of the Hellenic Academy for Laser Dentistry.

He authored approximately 70 scientific papers in English and in Greek and two textbooks in Greek, “Direct esthetic restorations, 2004” and “Solving clinical problems in Pediatric Dentistry, 2006”. He served as: Secretary General of the Hellenic Academy of Aesthetic Dentistry, President of Dental Society of Thessaloniki, Vice-President of “Aghios Pavlos” hospital of Thessaloniki, Member of the council of the Hellenic Dental Association, President of the scientific committee of the Hellenic Dental Association, Chief Dental Officer of Hellenic Republic. His research interest is on minimal invasive cosmetic dentistry, esthetic restorative dentistry, biomaterials and pediatric dentistry. From 1989 he owns a private dental clinic in Thessaloniki dedicated to esthetic and pediatric dentistry.

Contemporary Restorative Treatment Approaches for Carious Lesions in Permanent Dentition

Contemporary Restorative Dentistry has come a long way. From being a simple restoration of the dental morphology and function in a passive way, it has now become an innovative approach that includes aesthetic materials capable of interacting with the oral environment by releasing and recharging beneficial ions, such as fluoride. At the same time, the introduction of various types of aesthetic materials -from hole and slot preparations to fiber-reinforced composite resin constructions- allows for the development of the concept of "Minimally Invasive Cosmetic Dentistry" which perfectly corresponds to the trend of maintaining as much as possible healthy hard dental tissues. The presentation is a comprehensive overview of the possibilities of modern composite resin systems. Parts of the presentation will be dedicated to composite resins in general (features, advantages/disadvantages), as well as to materials with special properties. Various cases of small and large restorations with the application of multiple-use materials will be presented. The overall concept of "Minimally Invasive Cosmetic Dentistry" will be thoroughly explained and discussed. Special tips and guidance will be provided focusing on materials and means used in Contemporary Restorative Dentistry, adhesion to hard dental tissues, selection of adhesive systems and use of fibers in Restorative Dentistry.

SPEAKERS CV & ABSTRACTS