Morphological Study of Root Canals of Maxillary Molars by Cone-Beam Computed Tomography

Table 3

Prevalence of morphological root canal types according to the classifications proposed by Weine et al. [14] and Vertucci [15].

Classification	Mesiobuccal	Distobuccal	Palatal
	Prevalence (%)	Prevalence (%)	Prevalence (%)
Weine et al. [14]
Type 0	304	602	605
	(30.4)	(60.2)	(60.5)
Type I	2	43	266
	(0.2)	(4.3)	(26.6)
Type II	9	4	17
	(0.9)	(0.4)	(1.7)
Type III	684	344	94
	(68.4)	(34.4)	(9.4)
Type IV	1	7	18
	(0.1)	(0.7)	(1.8)
Vertucci [15]
Type I	2	43	266
	(0.2)	(4.3)	(26.6)
Type II	9	4	17
	(0.9)	(0.4)	(1.7)
Type III	12	50	160
	(1.2)	(5)	(16)
Type IV	684	345	92
	(68.4)	(34.5)	(9.2)
Type V	1	7	18
	(0.1)	(0.7)	(1.8)
Type VI	83	260	133
	(8.3)	(26)	(13.3)
Type VII	29	247	291
	(2.9)	(24.7)	(29.1)
Type VIII	180	44	23
	(18)	(4.4)	(2.3)