Fig. 3.

a, b Maxillary and mandibular arches exhibiting occlusal wear of the porcelain fused to metal crowns, exposing the metal of the crowns on the left posterior teeth. c, d Patient’s class III occlusion demonstrates classic features of bruxism including flattening of the occlusal plane, chipped dentition and generalized attrition, all of which are more severe on the left side secondary to excessive occlusal forces