Tooth
number 		Concave
(U-type) 		Parallel
(P-type) 		Convex
(C-type)
47 100 (47.85%) 62 (29.66%) 47 (22.49%)
46 103 (49.28%) 61 (29.19%) 45 (21.53%)
36 99 (47.37%) 66 (31.58%) 44 (21.05%)
37 97 (46.41%) 64 (30.62%) 48 (22.97%)

World Dental Federation FDI (French: Fédération Dentaire Internationale) tooth numbering system was used.