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Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
Dentalanatomy
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Dentalanatomy

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  • 1. M.E. Mermigas, DDS 1Dental Anatomy
  • 2. M.E. Mermigas, DDS 2Nomenclature• Maxilla• Mandible
  • 3. M.E. Mermigas, DDS 3Deciduous Teeth• Primary Teeth• Post-natal development spans 2-1/2years• Usually 20 in number– 4 incisors– 2 canines– 4 molars per arch
  • 4. M.E. Mermigas, DDS 4Deciduous Teeth• In clinical practice they are designatedby letters: A to T
  • 5. M.E. Mermigas, DDS 5Permanent Teeth• Development begins with the eruptionof the first molars and exfoliation of thedeciduous incisors• Process requires 20 years to complete• Usually 32 in number• In clinical practice they are designatedby numbers: 1 to 32
  • 6. M.E. Mermigas, DDS 6The Crown and Root• Crown- portion above thegingivae covered withenamel• Root- portion belowcovered with cementum• They are joined at thecemento-enamel junction(CEJ)
  • 7. M.E. Mermigas, DDS 7Dentin• Comprises the main bulkof tooth structure• Histologically analagous tobone in composition
  • 8. M.E. Mermigas, DDS 8Pulp Chamber and Canal• Contain the pulpaltissue– Nervous, arteriolarand venous tissue– fibrous tissue
  • 9. M.E. Mermigas, DDS 9The Crown• Incisors have an incisal edge• Canines have a single cusp• Premolars and Molars have 2 or morecusps• These are the cutting surfaces of theteeth
  • 10. M.E. Mermigas, DDS 10Incisor
  • 11. M.E. Mermigas, DDS 11Canine
  • 12. M.E. Mermigas, DDS 12Premolar
  • 13. M.E. Mermigas, DDS 13Molar
  • 14. M.E. Mermigas, DDS 14The Root• May be single or multiple• Firmly positioned in the boney processof the jaw called the alveolus• The alveolus together with the teethforms the dental arch• The cervical area of the teeth areusually covered with a soft tissue, thegingivae
  • 15. M.E. Mermigas, DDS 15Surfaces and Ridges• Incisors and Canines- four surfaces anda ridge• Molars and Premolars- five surfaces
  • 16. M.E. Mermigas, DDS 16Surfaces- named according topositions and uses• Facial- toward the lips or cheeks• Lingual- toward the tongue
  • 17. M.E. Mermigas, DDS 17Surfaces• Occlusal- come in contact with those ofthe opposing jaw, molars and premolarsonly• Incisal- Those surfaces on the incisorsand canines coming into contact withthe opposing teeth
  • 18. M.E. Mermigas, DDS 18Proximal Surfaces• Surfaces coming into contact with theadjacent teeth• Mesial- toward the midline• Distal- away from the midline• Which teeth have the mesial surfacestouching each other?
  • 19. M.E. Mermigas, DDS 19Cusp• an elevation or mound on the crownportion of a tooth making up a divisionalpart of the occlusal surface
  • 20. M.E. Mermigas, DDS 20
  • 21. M.E. Mermigas, DDS 21Tubercle• A smaller elevation on the sameportion of the crown produced by anextra formation of enamel. Deviationfrom typical form.
  • 22. M.E. Mermigas, DDS 22Cingulum• The lingual lobe of an anterior tooth
  • 23. M.E. Mermigas, DDS 23
  • 24. M.E. Mermigas, DDS 24Ridge• Any linear elevation on the surface of atooth and is named according to itslocation
  • 25. M.E. Mermigas, DDS 25Marginal RidgeThose rounded borders ofenamel that form the mesial anddistal margins of the occlusalsurfaces of premolars or molars,and the lingual surfaces ofanterior teeth
  • 26. M.E. Mermigas, DDS 26
  • 27. M.E. Mermigas, DDS 27Triangular Ridges• descend from the cusp tips of molarsand premolars toward the central part ofthe occlusal surface
  • 28. M.E. Mermigas, DDS 28
  • 29. M.E. Mermigas, DDS 29Oblique Ridge• Crosses the occlusal surface ofmaxillary molars in an oblique fashion
  • 30. M.E. Mermigas, DDS 30
  • 31. M.E. Mermigas, DDS 31Fossa• An irregular depression or concavity
  • 32. M.E. Mermigas, DDS 32
  • 33. M.E. Mermigas, DDS 33Sulcus• A long depression or valley in thesurface of a tooth between ridges andcusps
  • 34. M.E. Mermigas, DDS 34
  • 35. M.E. Mermigas, DDS 35Developmental Groove• A shallow groove or line between theprimary parts of the crown or root
  • 36. M.E. Mermigas, DDS 36
  • 37. M.E. Mermigas, DDS 37Pits• Small pinpoint depressions located atthe junction of the developmentalgrooves
  • 38. M.E. Mermigas, DDS 38
  • 39. M.E. Mermigas, DDS 39
  • 40. M.E. Mermigas, DDS 40

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