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9303 Dental

A 25 year old male presents to the dental clinic with black spots on his tooth. Intra-oral examination reveals pit and fissure caries with 16. Which of the following ICDAS score will be given to this tooth based on the histological depth of the lesion?

ALesion depth in P/F was 50% inner enamel and 50% into the outer 1/3 dentin - score 2
BLesion depth in P/F with 77% in dentin - score 3
CLesion depth in P/F with 100% in dentin - score 5 (Correct Answer)
DLesion depth in P/F was 100% reaching inner 1/3 dentin - score 6