tooth abfraction lesion SCTID:109750005 Tooth abfractions are usually wedge-shaped lesions with sharp-line angles, but sometimes circular invaginations on occlusal surfaces. A mechanical tooth lesion formed as a result of the tooth being fatigued, flexed, and deformed by biomechanical loading of the tooth. Tooth abfactions are primarily found in the cervical region of the tooth. 2023-06-06T21:30:59Z mechanical tooth lesion Bill Duncan Bill Duncan Gopikrishnan M Chandrasekharan Gopikrishnan M Chandrasekharan