TY - JOUR
T1 - Anatomical relation of third molars and the retromolar canal
AU - Moreno Rabie, Catalina
AU - Vranckx, Myrthel
AU - Rusque, M. I.
AU - Deambrosi, C.
AU - Ockerman, Anna
AU - Politis, Constantinus
AU - Jacobs, Reinhilde
N1 - © 2019 The British Association of Oral and Maxillofacial Surgeons
PY - 2019/10
Y1 - 2019/10
N2 - The study was designed to assess, by direct anatomical observations and cone-beam computed tomography (CT), the prevalence of a retromolar canal and foramen in relation to the mandibular third molar in dry human mandibles. Dry mandibles from European skeletons (n = 89) were observed directly and after cone-beam CT scanning (Newtom VGI evo). The following variables were assessed: the presence of a retromolar foramen and canal; the presence of a third molar, and orientation of the third molar. From the total of 89 mandibles selected, 73 showed a retromolar foramen (49 of which were bilateral). A retromolar canal was identified in 64 mandibles based on cone-beam CT assessment, with a total of 101 canals, including 74 that were bilateral. A total of 112 hemimandibles contained a third molar. Orientation of the third molar did not seem to indicate the presence of retromolar foramina or canals. A similar prevalence of retromolar canals was found for both vertically (41/79) and mesially (17/33) orientated third molars. A retromolar foramen and canal were present in most mandibles, with more than half being bilateral. We were unable to confirm a potential relation between the retromolar foramen and canal on the one hand, and the orientation of the third molar on the other.
AB - The study was designed to assess, by direct anatomical observations and cone-beam computed tomography (CT), the prevalence of a retromolar canal and foramen in relation to the mandibular third molar in dry human mandibles. Dry mandibles from European skeletons (n = 89) were observed directly and after cone-beam CT scanning (Newtom VGI evo). The following variables were assessed: the presence of a retromolar foramen and canal; the presence of a third molar, and orientation of the third molar. From the total of 89 mandibles selected, 73 showed a retromolar foramen (49 of which were bilateral). A retromolar canal was identified in 64 mandibles based on cone-beam CT assessment, with a total of 101 canals, including 74 that were bilateral. A total of 112 hemimandibles contained a third molar. Orientation of the third molar did not seem to indicate the presence of retromolar foramina or canals. A similar prevalence of retromolar canals was found for both vertically (41/79) and mesially (17/33) orientated third molars. A retromolar foramen and canal were present in most mandibles, with more than half being bilateral. We were unable to confirm a potential relation between the retromolar foramen and canal on the one hand, and the orientation of the third molar on the other.
KW - Cone-beam CT
KW - retromolar canal
KW - retromolar foramen
KW - third molar
KW - wisdom tooth
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85069628947&origin=resultslist&sort=plf-f&src=s&sid=8bcc584689f951fbe5c33bcf58a49e40&sot=b&sdt=b&s=TITLE-ABS-KEY%28Anatomical+relation+of+third+molars+and+the+retromolar+canal%29&sl=75&sessionSearchId=8bcc584689f951fbe5c33bcf58a49e40&relpos=3
U2 - 10.1016/j.bjoms.2019.07.006
DO - 10.1016/j.bjoms.2019.07.006
M3 - Article
SN - 0266-4356
VL - 57
SP - 765
EP - 770
JO - British Journal of Oral and Maxillofacial Surgery
JF - British Journal of Oral and Maxillofacial Surgery
IS - 8
ER -