Dentinogénesis Primaria Desarrollo dentario Factores de crecimiento (TGF-β familiar + ?) Epitelio...

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Dentinogéne sis Primaria Desarrollo dentario Factores de crecimiento (TGF-β familiar + ?) Epitelio dental interno Membrana basal inmovilizad a Pre- odontobla stos Odontoblast os Matriz dentinari a secuestra da Regulación funcional de odontoblasto s preexistente s ? Célula s dental es pulpar es Dentinoblast os, Odontoblasto s secundarios. Secreci ón matriz Reparaci ón tisular Dentinogéne sis Reactiva Dentinogéne sis Reparativa

Transcript of Dentinogénesis Primaria Desarrollo dentario Factores de crecimiento (TGF-β familiar + ?) Epitelio...

Page 1: Dentinogénesis Primaria Desarrollo dentario Factores de crecimiento (TGF-β familiar + ?) Epitelio dental interno Membrana basal inmovilizada Pre- odontoblastos.

Dentinogénesis Primaria

Desarrollo dentario

Factores de crecimiento(TGF-β familiar + ?)

Epitelio dental interno

Membrana basal

inmovilizada

Pre-odontoblasto

s

Odontoblastos

Matriz dentinaria

secuestrada

Regulación funcional de

odontoblastos preexistentes

?

Células dentales pulpares

Dentinoblastos, Odontoblastos secundarios.

Secreción matriz

Reparación tisular

Dentinogénesis Reactiva

Dentinogénesis Reparativa

Page 2: Dentinogénesis Primaria Desarrollo dentario Factores de crecimiento (TGF-β familiar + ?) Epitelio dental interno Membrana basal inmovilizada Pre- odontoblastos.

DENTINOGÉNESIS PRIMARIA

PROCESOS REPARATIVOS

DENTARIOS

Epitelio dental interno

Membrana basal

inmovilizada

Pre-odontoblastos ODONTOBLASTOS

Matriz dentinaria

secuestrada

Regulación funcional de

odontoblastos preexistentes

Células dentales pulpares

Dentinoblastos, Odontoblastos secundarios.

Secreción matriz

DENTINOGÉNESIS REACTIVA

DENTINOGÉNESIS REPARATIVA

Page 3: Dentinogénesis Primaria Desarrollo dentario Factores de crecimiento (TGF-β familiar + ?) Epitelio dental interno Membrana basal inmovilizada Pre- odontoblastos.

Disminución del grosor de la dentina residual en la cavidad

Incremento de exposición pulpar

Cavidad superficial

Cavidad profunda

Cavidad muy profunda

Exposición

Grosor de la dentina residual en la cavidad

> 0.5 mm 0.25- 0.5 mm 0.008-0.25 mm > 0.008 mm

Supervivencia del odontoblasto

Buena Buena Reducida Zero

Secreción de dentina terciaria

Mínima dentina reactiva

Máxima dentinareactiva

Mínima dentinareactiva

Dentinareparativa

Page 4: Dentinogénesis Primaria Desarrollo dentario Factores de crecimiento (TGF-β familiar + ?) Epitelio dental interno Membrana basal inmovilizada Pre- odontoblastos.

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