[EP-17] Mental foramen in 19-39 years-old Mongolian population: a CBCT study
[Abstract]
[Objective]
The mental foramen is a structure that carries a bundle of blood vessels and nerves to the outside of the mandible. It is important to know the exact location of the mental foramen during treatment procedures, as performing nerve anesthesia and placing dental implants into mandibular bone. Cone Beam Computed Tomography (CBCT) is now widely used in dentistry. CBCT is an effective diagnostic tool used to determine the installation place of dental implants, to plan the root canal treatment, and to perform and monitor outcomes of the surgical treatment, to diagnose cleft lip and palate. The aim of this study was to determine of morphological and morphometrical parameters of mental foramen in Mongolians.
[Method]
The survey was conducted by retrospective research method on CBCT images of 108 patients aged 19-39. The horizontal position of mental foramen was determined using Tebo and Telford method.1 Mental foramen vertical and horizontal dimensions and their shapes, as well height and width of the foramens were determined.2 The presence of additional mental foramina were checked.
[Results and Discussion]
In terms of the location, the mental foramen was located mostly apically to the second premolar (47.7%). Oval (46.3%) and round (41.7%) shaped foramina were identified in dominance. In 60.1% of the cases, the position of the right and the left foramina were symmetrical. The mean dimension of the mental foramen was 2.6±0.7 mm vertically and 3.6±0.8 mm horizontally. The incidence of additional mental foramen was 27.7%. The incidence of the anterior loop was 53.7%. The confirmation of the mental foramen location and dimensions, and asymmetric position between the right and left foramina are essential during therapeutic procedures in mandible.
[References]
1) Tebo HG, Telford IR. An analysis of the variations in position of the mental foramen. Anat Rec 1950;107:61-6. 2) Alrahabi M, Zafar M. Anatomical variations of mental foramen: a retrospective cross-sectional study. Int J Morphol 2018;36:1124-9.
[Objective]
The mental foramen is a structure that carries a bundle of blood vessels and nerves to the outside of the mandible. It is important to know the exact location of the mental foramen during treatment procedures, as performing nerve anesthesia and placing dental implants into mandibular bone. Cone Beam Computed Tomography (CBCT) is now widely used in dentistry. CBCT is an effective diagnostic tool used to determine the installation place of dental implants, to plan the root canal treatment, and to perform and monitor outcomes of the surgical treatment, to diagnose cleft lip and palate. The aim of this study was to determine of morphological and morphometrical parameters of mental foramen in Mongolians.
[Method]
The survey was conducted by retrospective research method on CBCT images of 108 patients aged 19-39. The horizontal position of mental foramen was determined using Tebo and Telford method.1 Mental foramen vertical and horizontal dimensions and their shapes, as well height and width of the foramens were determined.2 The presence of additional mental foramina were checked.
[Results and Discussion]
In terms of the location, the mental foramen was located mostly apically to the second premolar (47.7%). Oval (46.3%) and round (41.7%) shaped foramina were identified in dominance. In 60.1% of the cases, the position of the right and the left foramina were symmetrical. The mean dimension of the mental foramen was 2.6±0.7 mm vertically and 3.6±0.8 mm horizontally. The incidence of additional mental foramen was 27.7%. The incidence of the anterior loop was 53.7%. The confirmation of the mental foramen location and dimensions, and asymmetric position between the right and left foramina are essential during therapeutic procedures in mandible.
[References]
1) Tebo HG, Telford IR. An analysis of the variations in position of the mental foramen. Anat Rec 1950;107:61-6. 2) Alrahabi M, Zafar M. Anatomical variations of mental foramen: a retrospective cross-sectional study. Int J Morphol 2018;36:1124-9.