Oral histology lec.4 - part 1 (Dentinogenesis - Dentin Formation)

Описание: Oral Histology - انسجة الفم
‎محمد كامل MK

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تكوين الدنتين
تكوين العاج
Dentinogenesis (Dentin Formation)

Introduction 00:00
Dentinogenesis (Dentin Formation) 0:23
Odontoblasts life cycle 6:19
1- Differentiating phase 6:39
2- Secretory (Formative) phase 10:05
3- Quiescent (Resting) phase 13:44
Odontoblasts Histology 16:10
Dentinogenesis occur by odontoblasts in two stages: 23:05
1- Secretion of dentin matrix (predentin) 23:53
2- Mineralization of dentin 31:52
Pattern of mineralization in dentin 45:10
1. Globular Mineralization 45:35
2. Linear Mineralization 46:33
Pattern of dentin formation 48:25
1. Dentin of the crown (coronal dentin) 48:34
2. Root dentin (Radicular dentin) 51:25
Root dentin is different from crown dentin: 55:27
Dentinogenesis imperfecta (DGI) 56:37
Review 59:46


dentinogenesis imperfectas (DGIs) and dentin dysplasias (DDs).
reparative, response, sclerotic, secondary, tertiary, transparent
Granular layer, granular layer of Tomes
Imbrication lines Incremental lines
Interglobular spaces Lines of von Ebner Neonatal line Osteodentin Predentin
S curve Smear layer
a) Mantle dentin: less mineralized
b) Circumpulpal dentine : mineralization
c) Predentin : Newly secreted dentin; unmineralised dentine
Mineralization of predentin or maturation of dentin takes place in two phases: primary and secondary phases.