The document describes different types and locations of dental caries (cavities) that can occur: caries affecting pits and grooves on the biting surfaces of back teeth and the inside surfaces of front teeth; caries between the biting surfaces of back teeth; caries between the surfaces of front teeth without involving the pointed biting corners; caries between the surfaces of front teeth including the pointed biting corners; and caries on the gumline areas or outer/inner surfaces of front and back teeth and on the pointed chewing parts of molars, premolars and cuspids.

1. Caries affecting pits and
fissure on occlusal third
and occlusal two third
of posterior teeth, and
lingual part of anterior
Caries affecting proximal
surfaces of posterior teeth
Caries affecting proximal
surface of central incisors,
lateral incisors, and cuspid
without involving incisal
angle
Caries affecting proximal
including incisal angle of
anterior teeth
Caries affecting gingival
one third or facial or
lingual surfaces of
anterior and posterior
teeth
Caries affecting cusp
tips of molars,
premolars and cuspid
image taken from google for education purposes