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![Stages in tooth growth
Morphologic stage physiologic stage
Dental lamina and Bud stage Initiation
Cap stage Proliferation
Bell stage[ Early] Hiisto defferentiation
Bell stage {advanced} Morpho defferentitiation
Formation of enamel Apposition
and dentin matrix](https://image.slidesharecdn.com/developmentandmorphologyofprimaryteeth-120620065337-phpapp02/85/Development-and-morphology-of-primary-teeth-23-320.jpg)
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Similar to Development and morphology of primary teeth
Development and morphology of primary teeth
- 2. Development of theChild from conception to Three Years Dental Changes
- 3. Development of teeth Germlayer Formative tissue Tooth structure Ectoderm Dental organ ENAMEL Dental papilla DENTIN PULP Mesoderm Dental sac CEMENTUM PERIODONTAL LIGAMENT
- 4. Tooth development Initiation of tooth Odontogenesis-Factors from first arch Ones ability acquired maintained by dental papillary cells
- 5. 6 wks Inutero • Tooth Buds • Dental Lamina
- 6. Life Cycle ofthe Tooth • Growth • Initiation • Proliferation • Histodifferentiation • Morphodifferentiation • Apposition • Calcification • Eruption • Attrition
- 7. Primary Epithelial band/6th week Continuous band of thickened epithelium Roughly horse shoe shaped Thickening first seen in ant midline
- 9. Contd thickening ofDL in 10 areas of upper/ lower arch Thickenings correspond to position of future primary dentn
- 10. Proliferation • Multiplication ofthe cells of the initiation stage • Formation of the tooth germ • Cap Stage • formation of the Dental Papilla • Stellate reticulum – Enamel pulp • 9-11 weeks
- 12. Histodifferentiation • Bell Stage •Dental papilla • Dental Organ • Dental Sac • Dental Lamina 14th week
- 14. Morphodifferentiation • Advanced bellstage. • Inner enamel epithelium • Formation of Dentin • Fate of the Dental Lamina 18th week
- 16. Apposition • appositional, additiveand regular.
- 19. Calcification • Begins atthe cusp tips or incisal edges and proceeds cervically
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- 23. Stages in toothgrowth Morphologic stage physiologic stage Dental lamina and Bud stage Initiation Cap stage Proliferation Bell stage[ Early] Hiisto defferentiation Bell stage {advanced} Morpho defferentitiation Formation of enamel Apposition and dentin matrix
- 27. Formation of Singleand Multirooted Teeth
- 28.
- 29. Eruption of teeth •Pre-eruptive phase • Eruptive Phase (Prefunctional) • Eruptive phase functional
- 31. Theories of Eruption •Root Formation Theory • Proliferation of the Hertwig’s Epithelial Root Sheath • Proliferation of the connective tissue of the papilla • Simultaneous growth of the jaw • Pressures from muscular action • Apposition and resorption of bone
- 32. Exfoliation of thePrimary Tooth • Pressure on the roots by the erupting permanent tooth • Development of osteoclasts • Successive resorption of tooth root, cementum, dentin and adjacent bone due to the action of the osteoclasts.
- 33. Attrition • Normal wearingof the teeth during contact with opposing teeth during occlusion
- 34.