Pell and Gregory classification (Impacted 3rd mola...
Class A maxilla 3rd molar impaction: The occlusal plane of the impacted tooth is at the same level as the adjacent tooth.
Class A
Class A mandible 3rd molar impaction: The occlusal plane of the impacted tooth is at the same level as the adjacent tooth.
Class B
Class B maxilla 3rd molar impaction: The occlusal plane of the impacted tooth is between the occlusal plane and the cervical line of the adjacent tooth.
Class B
Class B mandible 3rd molar impaction: The occlusal plane of the impacted tooth is between the occlusal plane and the cervical line of the adjacent tooth.
Class C
Class C maxilla 3rd molar impaction: The occlusal plane of the impacted tooth is apical to the cervical line of the adjacent tooth.
Class C
Class C mandible 3rd molar impaction: The occlusal plane of the impacted tooth is apical to the cervical line of the adjacent tooth.
本站仅提供存储服务，所有内容均由用户发布，如发现有害或侵权内容，请
点击举报。
