Fig. 1  Cracks around an existing amalgam.
Fig. 2  Dark spot indicates caries around the margin of an existing porcelain onlay.
Fig. 3   Diffuse dark spot indicates central pit caries. Also darkened area of buccal groove shows buccal caries.
Fig. 4   Dark area shows caries in lingual pit and mesial of tooth No. 7 as well distal of tooth No. 8.
Fig. 5   Dark area under mesial marginal ridge of tooth No. 12 shows caries (Fig. 5) that is undetectable on bitewing X-ray (Fig. 6) due to presence of porcelain veneer.
Fig. 6   Dark area under mesial marginal ridge of tooth No. 12 shows caries (Fig. 5) that is undetectable on bitewing X-ray (Fig. 6) due to presence of porcelain veneer.
Fig. 7   Intraoral photo of tooth No. 12 shows no decalcification or any other indication of mesial caries.
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