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Dental Anatomy and Masticatory Dynamics Session I (September 2007)

Dental Anatomy and Masticatory Dynamics Session I (September 2007). Dr. Samir M. Ziara B.D.S. (Alexandria Univ.) D. D. P. H. Royal Collage of Surgeon (London) M. Sc. P. H. Al-Quds Univ. Diploma of H. Administration. Start notes from here. Masticatory / Gnathological System.

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Dental Anatomy and Masticatory Dynamics Session I (September 2007)

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  1. Dental Anatomy and Masticatory DynamicsSession I (September 2007) Dr. Samir M. Ziara B.D.S. (Alexandria Univ.) D. D. P. H. Royal Collage of Surgeon (London) M. Sc. P. H. Al-Quds Univ. Diploma of H. Administration

  2. Start notes from here Masticatory / Gnathological System

  3. Masticatory / Gnathological system • Masticatory: • Pertaining to chewing • Gnathology • Science that deals with anatomy, histology, physiology, pathology of the jaws and masticatory system as a whole, including the applicable diagnostic, therapeutic and rehabilitative procedures Frontal view

  4. Sagittal view of skull: Jaws: Maxilla – non-movable Mandible - movable Temporomandibular jt

  5. Mixed Dentition: Primary /Deciduous and Permanent

  6. Determination of age from teeth present

  7. 6 year molar LI + CI 8 yr 7 yr

  8. Permanent Teeth

  9. Maxillary ANTERIOR Mandibular ANTERIOR

  10. Anterior Teeth • Maxillary • Central Incisor (2 – right and left) • Lateral Incisor (2 – right and left) • Canine (2 – right and left) • Mandibular • Central Incisor (2 – right and left) • Lateral Incisor (2 – right and left) • Canine (2 – right and left)

  11. Maxillary PreMolars Mandibular PreMolars

  12. Posterior Teeth - PreMolars • Maxillary • 1st Premolar (2 – right and left) • 2nd Premolar (2 – right and left) • Mandibular • 1st Premolar (2 – right and left) • 2nd Premolar (2 – right and left)

  13. Maxillary Molars Mandibular Molars

  14. Posterior Teeth - Molars • Maxillary • 1st Molar (2 – right and left) • 2nd Molar (2 – right and left) • 3rd Molar (Wisdom tooth) (2 – right and left) • Mandibular • 1st Molar(2 – right and left) • 2nd Molar (2 – right and left) • 3rd Molar (Wisdom tooth) (2 – right and left)

  15. Division • Arches • Maxillary Mandibular • Quadrants • Maxillary Arch Mandibular Arch • Right quadrant Right quadrant • Left quadrant Left quadrant • Sextants • Maxillary Arch Mandibular Arch • Right posterior sextant Right posterior sextant • Anterior sextant Anterior sextant • Left posterior sextant Left posterior sextant

  16. Maxillary Arch

  17. Maxillary Arch Max Right quadrant

  18. Maxillary Arch Max Left quadrant

  19. Maxillary Arch Max Left Posterior sextant Max Right Posterior sextant

  20. CROWN coronal ROOT radicular Cervical line

  21. Incisal (ant) Occlusal (post) CROWN coronal ROOT radicular APEX apical Cervical line

  22. Right Midline Left

  23. Right Midline Left Mesial – towards midine Distal Away from midline

  24. Right Midline Left M D M D

  25. 8 9 7 10 6 11 5 4 3 14 2 15 1 -missing missing 16 Right Left UNIVERSAL SYSTEM

  26. Mandible numbering system 32 missing missing 17 31 18 30 19 29 28 20 21 27 22 26 25/24 23

  27. Name / number the teeth Using Universal # System

  28. Name / number the teeth Using Universal # System! 4 5 6 7 8 9 10 11

  29. 9 8

  30. More terminology • Views / aspects of teeth • Facial • Lingual • Mesial (a proximal surface) • Distal ( a proximal surface) • Occlusal (posterior) / Incisal (anterior)

  31. Apical Facial View Mesial Distal Incisal

  32. Apical Mesial Distal Incisal APICAL MIDDLE CERVICAL CERVICAL MIDDLE INCISAL

  33. Apical Mesial Middle Distal Incisal middle Mesial Middle Distal

  34. Proximal View Apical Facial Middle Lingual Cervical Cervical Facial Middle Lingual Incisal

  35. Proximal Facial Incisors PM Molars PM Molars Trapezoid Rhomboid Triangle

  36. Facial of all teeth - trapezoidal

  37. Contact areas • Area on proximal surface of a tooth – either M or D – when teeth are in good alignment – which touches adjacent tooth

  38. Contact areas • Area on proximal surface of a tooth – either M or D – when teeth are in good alignment – which touches adjacent tooth

  39. Variations yetcharacteristics for identification

  40. Maxillary Incisors Purpose Along with mandibular incisors • Esthetics • Phonetics - speech • Incising / cutting

  41. Information* and Photos with black background – Tooth Atlas * Information with asterisk from Tooth Atlas CD

  42. Maxillary Central Incisor Development* • The initiation of calcification is between 3 and 4 months. • The completion of enamel formation is 4 to 5 years. • The eruption is between 7 to 8 years. • Root development complete at 10 years.

  43. Why DA ?

  44. 5 views of teeth • Facial • Labial (anterior) • Buccal (posteriors) • Lingual • Mesial • Distal • Incisal / Occlusal • Ant / posterior

  45. Maxillary Central - #8 - Facial view • Crown:Root - 11mm: 13 mm • M-Inc Corner - 90 degrees • D-Inc Corner - rounded • M contact - Incisal • D contact - Junction (Incisal/Middle) D M

  46. Maxillary Central - #8 - Facial view • Size • MD widest ANT tooth • Inc-Cerv longest Crown • M outline straight • D outline slitly rounded

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