scholarly journals Biometric analysis of apical surgery-related anatomy of mandibular first molars: a cone-beam computed tomography study in a Mongoloid population

2019 ◽  
Vol 48 (4) ◽  
pp. 030006051989239
Author(s):  
Xue Wang ◽  
Yuejiao Zhang ◽  
Xiaolan Li ◽  
Zijing Huang ◽  
Minyi Cui ◽  
...  
Keyword(s):  
Root Apex ◽  
Cone Beam ◽  
Biometric Analysis ◽  
Tomographic Images ◽  
Computed Tomographic ◽  
Apical Surgery ◽  
Surgical Access ◽  
Distolingual Root ◽  
Long Access ◽  
Mongoloid Population

Objective To evaluate the apical surgery-related anatomy of two-rooted and three-rooted mandibular first molars (MFMs) in a Mongoloid population. Methods A total of 502 cone-beam computed tomographic images were used to evaluate the root configuration, the distance from the buccal bone to each root, root dimensions, and the complete root resection distance at the resection level for roots of MFMs. Results The prevalence of two-rooted and three-rooted MFMs was 85.1% and 14.9%, respectively. At the resection level, the distance from the buccal bone to the mesial and distal roots of two-rooted MFMs was 2.24 and 3.15 mm, respectively, while the distance was 2.44, 2.01, and 8.55 mm for the mesial, distobuccal, and distolingual roots of three-rooted MFMs, respectively. The distance from the buccal bone to each root was longer in men than in women. The largest distance for complete root resection was detected for the distal root in two-rooted MFMs and for the distolingual root in three-rooted MFMs. Conclusions The prevalence of three-rooted MFMs is common in the Mongoloid population. The distance from the buccal bone to root apex differs according to root configurations and sex. Surgical access to the distolingual root is difficult because of the long access distance.

scholarly journals ASSESSMENT OF RADIOMORPHOMETRIC INDICES ON DIGITAL PANORAMIC AND CONE BEAM COMPUTED TOMOGRAPHIC IMAGES IN OSTEOPOROTIC EGYPTIAN FEMALES.

2017 ◽  
Vol 5 (5) ◽  
pp. 200-212
Author(s):  
SarahM. Kenawy ◽  
◽  
DinaM.El Beshlawy ◽  
MushiraM. Dahaba ◽  
◽  
...  
Keyword(s):  
Cone Beam ◽  
Tomographic Images ◽  
Computed Tomographic

Radiographic Assessment of Bone Healing Using Cone-beam Computed Tomographic Scans 1 and 5 Years after Apical Surgery

2019 ◽  
Vol 45 (11) ◽  
pp. 1307-1313 ◽  
Author(s):  
Thomas von Arx ◽  
Simone F.M. Janner ◽  
Stefan Hänni ◽  
Michael M. Bornstein
Keyword(s):  
Bone Healing ◽  
Cone Beam ◽  
Radiographic Assessment ◽  
Computed Tomographic ◽  
Apical Surgery

scholarly journals Evaluation of mandibular volume classified by vertical skeletal dimensions with cone-beam computed tomography

2016 ◽  
Vol 86 (6) ◽  
pp. 949-954 ◽  
Author(s):  
Takatoshi Nakawaki ◽  
Tetsutaro Yamaguchi ◽  
Daisuke Tomita ◽  
Yu Hikita ◽  
Mohamed Adel ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Three Dimensional ◽  
Cone Beam ◽  
Class Iii ◽  
Tomographic Images ◽  
Computed Tomographic ◽  
Significant Difference ◽  
Detailed Assessment ◽  
Lateral Cephalometry

ABSTRACT Objective: To investigate the relationship between anteroposterior and vertical differences in maxillofacial morphology and mandibular volume. Materials and Methods: Subjects comprised 213 Japanese adults (84 males and 129 females) who were divided into three groups based on mandibular basal arch (ANB) and Wits, measured in a cephalometric analysis: Class I (−1° ≤ ANB < 4°,−1 mm ≤ Wits < 0 mm), Class II (ANB ≥ 4°, Wits ≥ 0), and Class III (ANB <−1°, Wits <−1 mm). Subjects were also divided into three groups based on the mandibular plane angle (Mp), as follows: hypodivergent (Mp < 23°), normodivergent (Mp  =  23–30°), and hyperdivergent (Mp > 30°) groups. Mandibular volume was measured from cone-beam computed tomographic images that were analyzed using Analyze™ image processing software and compared among the three groups in each classification. Results: No significant differences were noted in mandibular volume among Classes I, II, and III. An inverse relationship was found between mandibular volume and Mp, and a significant difference was noted in mandibular volume between the hypodivergent and hyperdivergent groups. Conclusions: In addition to two-dimensional analysis, such as lateral cephalometry, three-dimensional information such as volume, provided by cone-beam computed tomography, contributes to a more detailed assessment of maxillofacial morphology.

Accuracy and Validity of Stitching Sectional Cone Beam Computed Tomographic Images

2012 ◽  
Vol 23 (4) ◽  
pp. 1071-1076 ◽  
Author(s):  
Moon-Key Kim ◽  
Sang-Hoon Kang ◽  
Eun-Ha Lee ◽  
Sang-Hwy Lee ◽  
Wonse Park
Keyword(s):  
Cone Beam ◽  
Tomographic Images ◽  
Computed Tomographic

scholarly journals Evaluation of Mental Foramen Location – A Review Article

2020 ◽  
Vol 3 (7) ◽  
pp. 379-385
Author(s):  
Hussein Haleem Jasim
Keyword(s):  
Mandibular Canal ◽  
Mental Foramen ◽  
Review Article ◽  
Anatomical Structure ◽  
Cone Beam ◽  
Dental Surgery ◽  
Lower Lip ◽  
Tomographic Images ◽  
Computed Tomographic ◽  
Common Area

Abstract: One of the most vital anatomical structure within the mandible is the mental foramen. The significance of this structure come since it is the anatomical opening of mandibular canal on the mandible bilaterally. The neuro-vascular complex leaving from the foramen has a critical and important role and giving supply to the skin and muscles of the chin, lower lip, the associated gingiva and mucosa following to the lower premolars. Subsequently, the location knowledge of the mental foramen considers an awfully significant for dental specialists to dodge harming this imperative structure via the dental working on this region, as in dental anaesthesia, dental surgery, dental anaesthesia and root canal treatment. The aim of study: The point of the think about: To assess the site of the mental foramen in relative to the mandibular premolars, depended on the panoramic and CBCT and O.P.G images. Materials and Methods: The current study involved the previous articles published from 1997 till 2019, with respect to the site of mental foramen in elderly and adult patients, in any case of the gender. All these studies were used on either the panoramic and cone-beam computed tomographic images for visualizing the site of the mental foramen. Results: Regarding the outcomes of the previous studies included in this review, the statistics appeared that the first common area of mental foramen was beneath the apices of lower second premolars in the percentage of 49.99%, the other second common area of mental foramen was between the apices of the lower first and second premolars in the percentage of 42.30%. Conclusion: The mental foramen was mostly found beneath the apices of lower first and second premolars and then between the apices of the lower first and second premolars.

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