2. Classification of Impacted Third Molar : Removal of an impacted maxillary third molar is difficult because of : insufficient visualization of the area. limited access. maxillary sinus.
3. Classification: Impaction of the maxillary third molar may be classified as: Mesioangular Distoangular Vertical Horizontal Buccoangular linguoangular Inverted
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5. Cont... Impacted maxillary third molars may also be classified according to the depth of impaction compared to the second molar : Class A: The occlusal surface of the impacted tooth is at approximately the same level as the occlusal surface of the second molar .
6. Cont... Class B: The occlusal surface of the impacted tooth is at themiddleof the crown of the adjacent second molar . Class C: The occlusal surface of the crown of the impacted tooth is below the cervical line of the adjacent molar or even deeper.
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8. Classification Impacted Canines : Impacted maxillary canines are quite common, and approximately 12%–15% of the population present with impacted canines. They are localized palatally more often than labially.
9. The impacted canine presents five basic localizations : Palatal localization. Palatal localization of crown and labial localizationofroot. Labial localization of crown and palatal localization of root. Labial localization Ectopic positions
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11. Reference : Oral Surgery , Fragiskos D. Fragiskos, 2007 , p# 155-164 .
