Oral histology lec.4 - part 1 (Dentinogenesis - Dentin Formation) скачать в хорошем качестве

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

Oral Histology - انسجة الفم ‎محمد كامل MK 🔺رابط ملف المحاضرة 👇👇 https://t.me/dental_mk12/4102 🔺رابط قناة التليكرام (تحتوي على ملفات اسئلة وشرح وملخصات وتوضيحات لكل المواد)👇 https://t.me/dental_mk12 🔺رابط كروب المناقشه العلمية بين الطلاب 👇👇 https://t.me/group_mk12 🔺حساب الانستا 👇👇   / m12.bm   igshid=OGQ5ZDc2ODk2ZA== 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.