scholarly journals Location of the Mandibular Canal and Thickness of the Occlusal Cortical Bone at Dental Implant Sites in the Lower Second Premolar and First Molar

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Jui-Ting Hsu ◽  
Heng-Li Huang ◽  
Lih-Jyh Fuh ◽  
Rou-Wei Li ◽  
Jay Wu ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Statistical Analysis ◽  
Cortical Bone ◽  
Dental Implants ◽  
Dental Implant ◽  
Cone Beam Computed Tomography ◽  
Statistical Difference ◽  
Mandibular Canal ◽  
Careful Consideration ◽  
Cone Beam

The objective of this study was to evaluate the location of the mandibular canal and the thickness of the occlusal cortical bone at dental implant sites in the lower second premolar and lower first molar by using dental cone-beam computed tomography (CBCT). Seventy-nine sites (47 second premolar and 32 first molar sites) were identified in the dental CBCT examinations of 47 patients. In this study, 4 parameters were measured: (1) MC—the distance from the mandibular canal to the upper border of the mandible; (2) CD—the distance from the mandibular canal to the buccal border of the mandible; (3) MD—the distance from the mandibular canal to the lingual border of the mandible; (4) TC—the thickness of the cortical bone at the occlusal side. A statistical analysis was employed to compare the size and differences between these 4 parameters at the lower second premolar and lower first molar. Regarding the MC and MD, the experimental results showed no statistical difference between the first molar and second premolar. However, the TC for the second premolar was greater than that of the first molar. Thus, careful consideration is necessary in choosing the size of and operation type for dental implants.

scholarly journals Unilocular Radiolucent Lesions of the Jaws: a Retrospective Panoramic and Cone Beam Computed Tomography Evaluation

2020 ◽  
Vol 24 (3) ◽  
pp. 28-34
Author(s):  
Bilgun Cetin ◽  
Derya Icoz ◽  
Faruk Akgunlu
Keyword(s):  
Computed Tomography ◽  
Cortical Bone ◽  
Cone Beam Computed Tomography ◽  
Panoramic Radiography ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Imaging Characteristics ◽  
Dentigerous Cysts ◽  
Significant Difference ◽  
Panoramic Images

SummaryBackground/Aim: The aim of this study was to evaluate and compare the imaging characteristics of common, radiolucent, unilocular, intraosseous lesions of the jaws using both panoramic radiography and cone beam computed tomography (CBCT); also, to evaluate sufficiency of panoramic radiography in determining characteristic features of jaw lesions.Material and Methods: Retrospectively selected images of 57 patients with histopathology results were evaluated by two oral radiologists. The lesions were assessed based on shape, location, borders, relationship with the mandibular canal, presence of destruction of cortical bone, and expansion of cortical bone, and presence of an unerupted tooth related to the lesion. In addition, the widest areas of the lesions were measured. A total of 9 (15.8%) odontogenic keratocysts, 9 (15.8%) apical granulomas, 24 (42.1%) radicular cysts, 12 (21.0%) dentigerous cysts and 3 (5.2%) central giant cell granulomas in 57 patients (20 women, 37 men) with a mean age of 36.93 ± 17.96 years were included. Fifty-seven CBCT and 56 panoramic images of these patients were evaluated.Results: Twenty-nine (50.8%) lesions were in the mandible and 28 (49.2%) in the maxilla. A statistically significant difference was determined for the areas in CBCT images (p=0.007).Conclusions: Panoramic radiography is not as successful as CBCT in demonstrating some characteristics of the lesions, such as expansion and destruction. The area measurements may be beneficial in establishing the differential diagnosis of the lesion.

scholarly journals The comparison of roof visibility of the mandibular canal between cone-beam computed tomography scans and panoramic radiograph images as dependent on the cortical bone thickness of the mandible

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ali-Reza Ketabi ◽  
Angeliki Zelka ◽  
Hans-Christoph Lauer ◽  
Stefan Hassfeld
Keyword(s):  
Computed Tomography ◽  
Cortical Bone ◽  
Cone Beam Computed Tomography ◽  
Panoramic Radiograph ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Bone Thickness ◽  
Cortical Bone Thickness ◽  
Mcnemar Test ◽  
Left And Right

Abstract Background Accurate detection of the mandibular canal is a difficult process despite cutting-edge radiographic methods. The present study analyses whether mandibular canal roof visibility is comparable to panoramic radiography (PR) and cone-beam computed tomography (CBCT) and, further, examines whether the visibility in PR and CBCT is dependent on cortical bone thickness in the mandible. Methods This study was conducted on a group of 343 selected patients. It incorporated anonymised data on 343 patients in which a CBCT and PR were available. The first stage examines whether the mandibular canal roof visibility is comparable to PR and CBCT. In the second stage, measurements of cortical bone thickness showed buccal and lingual in the P2, M1, M2 and M3 teeth areas, both to the left and right of the mandible in CBCT images. Statistical analysis was supported by statistical software (IBM SPSS 25; Armonk, NY, USA). Results The mean age of the patients was 58.8 years with an almost equal gender distribution. When performing a McNemar test on the P2, M1, M2 and M3 on both the left and right jaws, the difference between the two image modalities, with regard to the visibility of the canal roof, was found to be significant (McNemar test, p < 0.001). Statistically (U test, p≥0.05), it follows that the thickness of the cortical bone of the mandible exerts no influence on the visibility of the roof of canalis mandibulae in PR and CBCT images. Conclusion We conclude that the visibility of the mandibular canal in PR and CBCT rays is not identical, and that the thickness of the cortical bone in the mandible does not represent a factor affecting the visibility of the roof of the mandibular canal.

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 Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography

2016 ◽  
Vol 46 (2) ◽  
pp. 69 ◽  
Author(s):  
Eduarda Helena Leandro do Nascimento ◽  
Maria Luiza dos Anjos Pontual ◽  
Andréa dos Anjos Pontual ◽  
Danyel Elias da Cruz Perez ◽  
José Natal Figueiroa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Anterior Loop

Anthropometric Analysis of the Human Mandibular Cortical Bone as Assessed by Cone-Beam Computed Tomography

2009 ◽  
Vol 67 (3) ◽  
pp. 491-500 ◽  
Author(s):  
Denise Swasty ◽  
Janice S. Lee ◽  
John C. Huang ◽  
Koutaro Maki ◽  
Stuart A. Gansky ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cortical Bone ◽  
Cone Beam Computed Tomography ◽  
Cone Beam
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