The Efficiency of Operating Microscope Compared with Unaided Visual Examination, Conventional and Digital Intraoral Radiography for Proximal Caries Detection

Table 1

Criteria used for evaluations.

Scores	Visual examination & operating microscope	Radiographic	Histological
0	No lesion	Sound	Sound
1	Enamel opacity with smooth surface	Radiolucency in enamel	Caries in enamel
2	Enamel opacity with rough surface	Radiolucency in dentino-enamel junction	Caries in dentino-enamel junction
3	Cavitation restricted to the enamel	Radiolucency in the outer half of the dentine	Caries in the outer half of the dentine
4	Cavitation extending into dentine	Radiolucency in the inner half of the dentine	Caries in the inner half of the dentine