Anatomy Research International / 2015 / Article / Tab 8 / Research Article
Retromolar Canal Associated with Age, Side, Sex, Bifid Mandibular Canal, and Accessory Mental Foramen in Panoramic Radiographs of Brazilians Table 8 Other studies in the literature with regard to sample characteristics and incidence of occurrence of retromolar canals (RMC) or retromolar foramen (RMF).
Studies Year Sample size Region of population Sample type Sample age (years) Incidence of RMF/RMC Schejtman et al. [16 ] 1967 18 Argentine Human heads’ cadavers — 72% RMC Athavale et al. [17 ] 2013 71/10 India Dry mandible/adult cadavers — 14.08% RMF in dry mandibles/0% RMF in adult cadavers Narayana et al. [1 ] 2002 242 India Dry adult mandibles — 21.9% RMF Bilecenoglu and Tuncer [8 ] 2006 40 Turkey Mandibles — 25% RMF Rossi et al. [18 ] 2012 222 Brazil Dry adult mandibles — 26.58% RMF Galdámes et al. [19 ] 2008 294 Brazil Dry adult mandibles 18–100 12.9% RMF/RMC Bilodi et al. [20 ] 2013 41 India Dry mandible — 12.19% RMF Gupta et al. [21 ] 2013 50 India Dry adult mandibles — 18% RMF Kang et al. [22 ] 2014 1933 Korea CBCT images of patients 16–57 5.38% RMC Patil et al. [5 ] 2013 171 patients (254 images) Japan CBCT images of patients 15–79 75.43% RMC Lizio et al. [23 ] 2013 187 patients (233 images) Italy CBCT images of patients Mean age of 46 16% RMC Orhan et al. [24 ] 2013 63 patients (126 images) Turkey CBCT images of patients (children) 7–16 22.20% RMC Kawai et al. [25 ] 2012 46 patients (99 images) Japan CBCT images of cadaver mandibles — 52% RMF von Arx et al. [15 ] 2011 100 patients (121 images) Switzerland CBCT images of patients and panoramic radiographs 16–83 25.6% (CBCT) and 5.8% (panoramic radiographs) RMC Sisman et al. [26 ] 2015 632 patients (947 images) Turkey CBCT images of patients and panoramic radiographs 15–58 26.7% (CBCT) and 3.06% (panoramic radiographs) RMC