Detecting the Second Mesiobuccal Canal in Maxillary Molars in a Saudi Arabian Population: A Micro-CT Study

Table 1

Number of canals (percentage) and portals of exits in the mesiobuccal root of maxillary first and second molars.

	Number of canals			Portals of exit
	1	2	3	1	2	>2
First molar ()	1 (2.9)	28 (80)	6 (17.1)	8 (22.9)	11 (31.4)	16 (45.7)
Second molar ()	2 (6.7)	24 (80)	4 (13.3)	5 (16.7)	11 (36.7)	14 (46.6)