Evaluation of the anatomical position of the mandibular canal after mandibular sagittal split ramus osteotomy

2019 ◽  
Vol 48 ◽  
pp. 256
Author(s):  
M. da Silveira ◽  
V. dos Santos ◽  
P. Gomes ◽  
A. Gondim ◽  
W. Dantas ◽  
...  
Keyword(s):  
Mandibular Canal ◽  
Sagittal Split Ramus Osteotomy ◽  
Anatomical Position

Position of the mandibular canal before and after bilateral sagittal split ramus osteotomy: a cone beam computed tomography study

2021 ◽  
Author(s):  
Fernanda Chiguti Yamashita ◽  
Lilian Cristina Vessoni Iwaki ◽  
Amanda Lury Yamashita ◽  
Elen de Souza Tolentino ◽  
Vinicius Eduardo de Oliveira Verginio ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Sagittal Split Ramus Osteotomy ◽  
Before And After

scholarly journals Sagittal Split Ramus Osteotomy in the Shortest Buccal Bone Marrow Distances of the Mandible on the Coronal Plane

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Chun-Ming Chen ◽  
Han-Jen Hsu ◽  
Ping-Ho Chen ◽  
Shih-Wei Liang ◽  
I-Ling Lin ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Mandibular Canal ◽  
Class Ii ◽  
Coronal Plane ◽  
Class Iii ◽  
Sagittal Split Ramus Osteotomy ◽  
Mandibular Foramen ◽  
Skeletal Class ◽  
Skeletal Pattern ◽  
The Relationship

Purpose. This study investigated the relationship between the shortest buccal bone marrow of the ramus and skeletal patterns. Materials and Methods. Using cone-beam computed tomography data (specifically, the A point-nasion-B point (ANB) angle), we divided patients into three groups as follows: skeletal class I ( 0 ° < ANB < 4 ° ), class II (ANB: ≥4°), and class III (ANB: ≤0°). Sixteen vertical sections in the coronal plane were taken starting from slice 0 (original intact mandibular canal) anteriorly at 2 mm intervals to slice 15 (30 mm). The thickness of the mandible (M) and shortest buccal bone marrow (SBM) were measured. The data of SBM were divided into two groups ( SBM ≥ 1   mm and SBM < 1   mm ). For each skeletal pattern, an SBM   value < 1   mm was considered to indicate a high possibility of postoperative nerve paresthesia and bad split. Results. The three skeletal pattern groups also did not significantly differ in their M values for all sections. The mean SBM values of class III (0.91–2.11 mm) at 6–16 mm anterior to the mandibular foramen were significantly smaller than those of class II (1.53–3.17 mm). Comparing the occurrence ratio of SBM < 1   mm , the highest and lowest probabilities in class III (55% and 21.7%, respectively) were significantly larger at 6–20 mm anterior to the mandibular foramen than those in class II (28.3% and 5%, respectively). Conclusion. Class III had a significantly shorter SBM distance and higher SBM occurrence probability than class II at the mandibular ramus region, implying that class III participants are more likely than class II participants to have nerve paresthesia and bad split after sagittal split ramus osteotomy.

scholarly journals Position of Mandibular Canal and Ramus Morphology Before and After Sagittal Split Ramus Osteotomy

2010 ◽  
Vol 68 (8) ◽  
pp. 1795-1801 ◽  
Author(s):  
Koichiro Ueki ◽  
Katsuhiko Okabe ◽  
Mao Miyazaki ◽  
Aya Mukozawa ◽  
Kohei Marukawa ◽  
...  
Keyword(s):  
Mandibular Canal ◽  
Sagittal Split Ramus Osteotomy ◽  
Before And After

scholarly journals Prevalence of bifid and trifid mandibular canal by panoramic radiograph at RSGM Unsyiah Banda Aceh: data from April 2012 to March 2017

2021 ◽  
Vol 5 (1) ◽  
pp. 37-41
Author(s):  
Kemala HAYATI ◽  
FAKHRURRAZI . ◽  
Tiara Anggraini PUTRI
Keyword(s):  
Research Method ◽  
Secondary Data ◽  
Panoramic Radiograph ◽  
Mandibular Canal ◽  
Third Molars ◽  
Sagittal Split Ramus Osteotomy ◽  
Bifid Mandibular Canal ◽  
Panoramic Images ◽  
Implant Treatment ◽  
Banda Aceh

The mandibular canal bifid and trifid are variations of the mandibular canal. This variation of themandibular canal is essential to recognize in surgical procedures involving mandibles, such as extraction ofimpacted third molars, dental implant treatment, and sagittal split ramus osteotomy. The purpose of this study wasto determine the prevalence of bifid and trifid mandibular canal by panoramic radiograph at RSGM Unsyiah BandaAceh. This research method is descriptive by collecting secondary data in the form of panoramic images frompatients visiting RSGM Unsyiah Banda Aceh for April 2012-March 2017. A total of 2,478 panoramic radiographphotos collected showed the bifid mandibular canal is 1.25%. Based on sex, 21 photos (67.74%) of the bifidmandibular canal cases in women and ten photos (32.26%) in men. Based on the position of the bifid mandibularcanal, 9 images (29.03%) unilateral/ right-sided, 15 photos (48.39%) were unilateral/left side, and seven photos(22.58%) bilateral. KEYWORDS: bifid mandibular canal, panoramic, prevalence, trifid mandibular canal

scholarly journals Cone Beam Computed Tomographic Analyses of the Position and Course of the Mandibular Canal: Relevance to the Sagittal Split Ramus Osteotomy

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Ahmet Ercan Sekerci ◽  
Halil Sahman
Keyword(s):  
Third Molar ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Sagittal Split Ramus Osteotomy ◽  
Mean Values ◽  
Computed Tomographic ◽  
Dental Patients ◽  
The Third ◽  
Difficult Procedure ◽  
The Mean

Purpose. The aim of this study was to document the position and course of the mandibular canal through the region of the mandibular angle and body in dental patients, using cone beam computed tomographic imaging.Methods. The position and course of the mandibular canal from the region of the third molar to the first molar were measured at five specific locations in the same plane: at three different positions just between the first and second molars; between the second and third molars; and just distal to the third molar.Results. The study sample was composed of 500 hemimandibles from 250 dental patients with a mean age of 26.32. Significant differences were found between genders, distances, and positions. B decreased significantly from the anterior positions to the posterior positions in both females and males. The mean values of S and CB increased significantly from the posterior positions to the anterior positions in both females and males.Conclusion. Because the sagittal split ramus osteotomy is a technically difficult procedure, we hope that the findings of the present study will help the surgeon in choosing the safest surgical technique for the treatment of mandibular deformities.

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