The emergence of non-carious cervical lesions can be attributed to various etiological factors, one of which is abfraction. This theory suggests that the bending of enamel and dentin in the cervical region of teeth is linked to abfraction. However, there is a lack of sufficient experimental studies confirming the existence of this process and its connection to wedge-shaped defects. Despite extensive efforts to establish occlusal forces as the primary cause of abfraction, its etiology continues to be poorly understood and contoversial. Consequently, the abfraction theory remains unproven. What is clear, though, is that cervical wear related to abfraction can occur both with normal and abnormal tooth function.
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