Table 2.

Crown fracture classification (Spinas, 2002).

Class A	Simple enamel lesions involving mesial or distal coronal angle or incisal edge
Class B	Enamel-dentin lesions involving mesial or distal coronal angle and incisal edge Subclass b1: pulp exposition
Class C	Enamel-dentin lesion involving incisal edge at least a third of the crown Subclass c1: pulp exposition
Class D	Enamel-dentin lesion involving mesial or distal coronal angle and the incisal and palatal surface with root involvement Subclass d1: pulp exposition
Class H	Fractured tooth with silent or necrotic pulp