gv blacks classification

what is the gv blacks classification used for

describe the types and location of caries and restoration

made in the 1900

class 1

in the pits or fissue of the occlusal surfaces of molars and premolars

lingual pits of max anterior

class 2

interproximal surfaces

mesial or distal

premoarls and molars involving two or more surfaces

class 3

on the proximal mesial or distal of anterior teeth

class 4

promixal surfaces of the anterior teeth but the incisal angle

class 5

cervical surface of both anterior and posterior teeth

lingual or facial

class 6

on the insial edge of anterior

posterior is the cusp