Occlusal surface of the posterior teeth. Buccal or lingual pits in the molars. Lingual pit near the cingulum of the maxillary incisors
Class I
Class II
Proximal ( mesial or distal ) of the posterior teeth.
Inter proximal ( mesial or distal ) of the Antierior teeth
Class III
Class IV
Inter proximal ( mesial or distal ) of anterior and include the Incisal edge
Cervical third of the facial or lingual surface of the tooth usually from sucking. Or in one quadrant due to medications.
V