Dental Dictionary:
injury in occlusal trauma
n
The damaging effects of occlusal trauma, which are of a dystrophic nature and affect the tooth and its attachment apparatus. Lesions include wear facets on the tooth, root resorption, cemental tears, thrombosis of blood vessels of the periodontal membrane, necrosis and hyalinization of the periodontal membrane on the pressure side, and resorption of alveolar and supporting bone. Clinically, tooth mobility and migration may be evident; radiographically, evidence includes the widening of the periodontal membrane space and fraying or fuzziness of the lamina dura and formation of infrabony resorptive defects. Pocket formation is not a sequela to occlusal traumatism.
