CLASSIFICATION OF CAVITY PREPARATIONS

BLACKS CLASSIFICATION

¨CLASS I:All pit and fissure lesion on occlusal surface of premolars and molars, lesion on occlusal 2/3^rd of the facial and lingual surface of molars and lesion on lingual surface of maxillary incisor 

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¨CLASS II:Lesion on proximal surface of posterior teeth

¨CLASS III :Lesion on proximal surface of anterior teeth that do not involve incisal edge

¨CLASS IV :Lesion on proximal surface of anterior involving  incisal edge

¨CLASS V :Lesion on gingival third of facial or lingual of all teeth

¨CLASS VI :Lesion on incisal edge of anterior teeth or occlusal cusp tip of posterior teeth