Mandibular Canines with Two Roots and Two Root Canals: Case Report and Literature Review

Table 1

Prevalence of mandibular canines with two roots and two root canals reported in clinical studies ( articles).

Author/year	Materials and methods	Country	Number of mandibular canines	Root canal configuration
				Type I (1) (%)	Prevalence of 2 apical foramina (%)
Aminsobhani et al. 2013 [4]	CBCT	Iran	608; (298 males and 310 females)	71.8%	19.8%; (4.7% bi-rooted, 12.8% type IV [2], and 2.3% type V [1, 2])
Altunsoy et al. 2014 [5]	CBCT	Turkey	1604; (805 males and 799 females)	92.7%	3.9%; (1.3% type IV [2] and 2.6% type V [1, 2])
Han et al. 2014 [6]	CBCT	China	1291; (645 right and 646 left)	93.7%	1.8%; (1.3% bi-rooted and 0.5% type V [2])
da Silva et al. 2016 [7]	CBCT	Brazil	200	90.5%	4.5%; (2.5% type IV [2] and 2% type V [1, 2])
Soleymani et al. 2017 [8]	CBCT	Iran	300; (172 females and 128 males)	89.7%	1%; (all type V)

Vertucci’s root canal configuration.