Güneydoğu Anadolu Popülasyonunda Aksesuar Mental Foramen Prevalansının Konik Işınlı Bilgisayarlı Tomografi İle Retrospektif Olarak Değerlendirilmesi

Abstract Background The purpose of this study was to investigate the differences in configuration and dimensions of the anterior loop of the inferior alveolar nerve (ALIAN) in patients with and without mandibular asymmetry. Method Preoperative computed tomography images of patients who had undergone orthognathic surgery from January 2016 to December 2018 at a single institution were analyzed. Subjects were classified into two groups as “Asymmetry group” and “Symmetry group”. The distance from the most anterior and most inferior points of the ALIAN (IANant and IANinf) to the vertical and horizontal reference planes were measured (dAnt and dInf). The distance from IANant and IANinf to the mental foramen were also calculated (dAnt_MF and dInf_MF). The length of the mandibular body and symphysis area were measured. All measurements were analyzed using 3D analysis software. Results There were 57 total eligible subjects. In the Asymmetry group, dAnt and dAnt_MF on the non-deviated side were significantly longer than the deviated side (p < 0.001). dInf_MF on the non-deviated side was also significantly longer than the deviated side (p = 0.001). Mandibular body length was significantly longer on the non-deviated side (p < 0.001). There was no significant difference in length in the symphysis area (p = 0.623). In the Symmetry group, there was no difference between the left and right sides for all variables. Conclusion In asymmetric patients, there is a difference tendency in the ALIAN between the deviated and non-deviated sides. In patients with mandibular asymmetry, this should be considered during surgery in the anterior mandible.

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The inferior alveolar nerve's loop at the mental foramen and its implications for surgery

The Journal of the American Dental Association ◽

10.14219/jada.2013.34 ◽

2014 ◽

Vol 145 (3) ◽

pp. 260-269 ◽

Cited By ~ 21

Author(s):

Katharina Filo ◽

Thomas Schneider ◽

Michael C. Locher ◽

Astrid L. Kruse ◽

Heinz-Theo Lübbers

Keyword(s):

Mental Foramen

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Proton pump inhibitors and mandibular bone quality: A preliminary study

Dentomaxillofacial Radiology ◽

10.1259/dmfr.20200505 ◽

2021 ◽

pp. 20200505

Author(s):

Aykağan Coşgunarslan ◽

Emin Murat Canger ◽

Damla Soydan Çabuk

Keyword(s):

Proton Pump Inhibitors ◽

Proton Pump ◽

Fractal Analysis ◽

Bone Structure ◽

Study Groups ◽

Mental Foramen ◽

Control Group ◽

Panoramic Radiographs ◽

Significant Difference ◽

Bone Changes

Objectives: Proton pump inhibitors (PPI) provide a long-lasting anti-acidic effect by inhibiting the proton pump, and they are one of the most commonly prescribed drugs worldwide. PPIs adversely affect the bone structure via deficiency of vitamins and minerals. The aim of this study was to investigate the possible PPI-induced bone changes in the mandible on panoramic radiographs with the methods of fractal analysis and panoramic morphometric indices. Methods: Panoramic radiographs of 402 patients were used (201 PPI users, 201 control group). Fractal analysis was performed on 4 regions of interests (ROI): 1- upper part of the ramus, 2- angulus, 3- anterior of the mental foramen, 4- distal of the middle ramus. Also, the panoramic mandibular index (PMI), mandibular cortical width (MCW), and Klemetti index (KI) were performed on radiographs. Results: There were significant differences in terms of ROI3, MCW, and KI between the control and study groups (p < 0.05) while there was no significant difference for ROI1, ROI2, ROI4, and PMI (p > 0.05). Males were severely affected than females. Conclusions: Osteoporotic changes were detected in the trabecular and cortical bone in the mental foramen region in PPI users with fractal analysis and morphometric indices, while there were no differences for mandibular ramus and angulus regions according to fractal analysis.

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