Anatomical Evaluation of Root and Root Canal Configuration of Permanent Maxillary Dentition in the Population of the Kingdom of Saudi Arabia

Table 5

Root canal configuration of maxillary first molars among Saudi populations.

Study (year)	Region	Method	Sample	Type of root	Vertucci’s system (%)
					I	II	III	IV	V	VI	VII	VIII	Others
Al-Habib et al. (2021)	Western	CBCT	106	Mesiobuccal		62		44
				Roots		(58.5)		(41.5)
				Distobuccal
		In vivo		Roots
				Palatal
				Roots
Al-Shehri et al. [33]	Central	CBCT	330	Mesiobuccal	116	80	12	110	6	4		1	1
				Roots	(35.1)	(24.4)	(3.6)	(33.3)	(1.8)	(1.2)		(0.3)	(0.3)
				Distobuccal roots	327		1		1				1
		In vivo			(99.0)		(0.4)		(0.3)				(0.3)
				Palatal	330
				Roots	(100.0)
Alrahabi et al. (2015)	Western	CBCT	100	Mesiobuccal	29	47	12	12
				Roots	(29.0)	(47.0)	(12.0)	(12.0)
				Distobuccal roots	100
		In vitro			(100.0)
				Palatal	100
				Roots	(100.0)
Total			536	Mesiobuccal	145	189	24	166	6	4		1	1
				Roots	(27.1)^α	(35.3)^α	(4.5)^α	(31.0)^α	(1.1)^α	(0.7)^α		(0.2)^α	(0.2)^α
				Distobuccal	427		1		1
				Roots	(99.3)^β		(0.3)^β		(0.3)^β
				Palatal	430
				Roots	(100.0)^η

^αThe percentage is out of 536 teeth (studies that investigated the Vertucci’s system of MB roots of 1^st molars); ^βthe percentage is out of 430 teeth (studies that investigated the Vertucci’s system of DB roots of 1^st molars); ^ηthe percentage is out of 430 teeth (studies that investigated the Vertucci’s system of roots of 1^st molars).