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Image: Lower mandibular third molar impaction pericoronitis diagram

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Description: Diagram showing mesio-impacted mandibular third molar tooth, with associated dental caries and pericoronitis. Captions are (A) Mesio-impacted, partially erupted mandibular third molar; (B) Dental caries and periodontal defects o both the third and second molars, caused by food packing and poor access to oral hygiene; (C) Inflamed operculum covering partially erupted lower third molar, with accumulation of food debris and bacteria underneath; (D) The upper third molar has over-erupted due lack of opposing tooth contact, and may start to traumatically occlude into the operculum over the lower third molar.
Title: Lower mandibular third molar impaction pericoronitis diagram
Credit: Own work
Author: Lesion
Usage Terms: Creative Commons Zero, Public Domain Dedication
License: CC0
License Link: http://creativecommons.org/publicdomain/zero/1.0/deed.en
Attribution Required?: No

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