scholarly journals Localization of mandibular canal and assessment of the remaining alveolar bone in posterior segment of the mandible with single missing tooth using cone-beam computed tomography: a cross sectional comparative study

2017 ◽  
Vol 43 (2) ◽  
pp. 100 ◽  
Author(s):  
Saif Fahad Alrahaimi ◽  
Elluru Venkatesh
Keyword(s):  
Computed Tomography ◽  
Comparative Study ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Mandibular Canal ◽  
Posterior Segment ◽  
Cone Beam ◽  
Cross Sectional ◽  
Missing Tooth

scholarly journals Alveolar bone heights of maxillary central incisors in unilateral cleft lip and palate patients using cone-beam computed tomography evaluation

2021 ◽  
Author(s):  
Marcin Stasiak ◽  
Anna Wojtaszek-Słomińska ◽  
Bogna Racka-Pilszak
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Contralateral Side ◽  
Cone Beam ◽  
Rank Test ◽  
Cross Sectional ◽  
Alveolar Bone Grafting

Abstract Purpose The aims of this retrospective cross-sectional study were to measure and compare labial and palatal alveolar bone heights of maxillary central incisors in unilateral cleft lip and palate patients, following STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) guidelines. Patients and methods The study group consisted of 21 patients with a mean age of 16 years. High-resolution cone-beam computed tomography was performed at least one year after secondary alveolar bone grafting. The experimental side was the cleft side and the contralateral side without congenital cleft was the control. Measurements were performed on incisors’ midsagittal cross-sections. The Wilcoxon signed-rank test was used for intergroup comparisons. Results The labial and palatal distances between alveolar bone crests and cementoenamel junctions were significantly greater on the cleft side than on the noncleft side. Mean differences were 0.75 and 1.41 mm, respectively. The prevalence of dehiscences at the cleft side maxillary central incisors was 52% on the labial surface and 43% on the palatal surface. In the controls, it was 19% and 14%, respectively. Conclusion The cleft-adjacent maxillary central incisors had more apically displaced alveolar bone crests on the labial and palatal sides of the roots than the controls. Higher prevalence of dehiscences was found on the cleft side. Bone margin differences predispose to gingival height differences of the central incisors. These differences could increase the demands of patients to obtain more esthetic treatment results with orthodontic extrusion and periodontal intervention on the cleft side.

scholarly journals Evaluation of the Relationship between Mandibular Third Molar and Mandibular Canal by Different Algorithms of Cone-beam Computed Tomography

2014 ◽  
Vol 15 (6) ◽  
pp. 740-745
Author(s):  
Mojdeh Mehdizadeh ◽  
Navid Ahmadi ◽  
Mahsa Jamshidi
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Mandibular Canal ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Cross Sectional ◽  
Mandibular Third Molar ◽  
The Relationship

ABSTRACT Objectives Exact location of the inferior alveolar nerve (IAN) bundle is very important. The aim of this study is to evaluate the relationship between the mandibular third molar and the mandibular canal by cone-beam computed tomography. Study design This was a cross-sectional study with convenience sampling. 94 mandibular CBCTs performed with CSANEX 3D machine (Soredex, Finland) and 3D system chosen. Vertical and horizontal relationship between the mandibular canal and the third molar depicted by 3D, panoramic reformat view of CBCT and cross-sectional view. Cross-sectional view was our gold standard and other view evaluated by it. Results There were significant differences between the vertical and horizontal relation of nerve and tooth in all views (p < 0.001). Conclusion The results showed differences in the position of the inferior alveolar nerve with different views of CBCT, so CBCT images are not quite reliable and have possibility of error. How to cite this article Mehdizadeh M, Ahmadi N, Jamshidi M. Evaluation of the Relationship between Mandibular Third Molar and Mandibular Canal by Different Algorithms of Cone-beam Computed Tomography. J Contemp Dent Pract 2014;15(6):740-745.

scholarly journals Assessment of Labial Alveolar Bone Thickness in Maxillary Central Incisor using Cone Beam Computed Tomography

2021 ◽  
Vol 5 (1) ◽  
pp. 2-6
Author(s):  
Shaili Pradhan ◽  
Rejina Shrestha ◽  
Ranjita Shrestha Gorkhali ◽  
Pramod Kumar Koirala
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Cone Beam ◽  
Central Incisor ◽  
Bone Thickness ◽  
Cross Sectional ◽  
Dental Surgery ◽  
Maxillary Central Incisor ◽  
Significant Difference

Introduction: The maxillary anterior region is becoming a major concern due to its aesthetic relevance. The buccal bone thickness is important for implant placement, orthodontic treatment and restorative treatment. Objective: To assess the thickness of alveolar bone in the maxillary central incisor using cone beam computed tomography (CBCT). Methods: A cross-sectional observational study was conducted at Department of Dental Surgery, Bir Hospital where CBCT of 53 samples from July 2019 till December 2019, the archived CBCT images was assessed retrospectively. The thickness of the labial bone in a direction perpendicular to the outer surface of the tooth root was measured at a distance of 2 mm from the cementoenamel junction (CEJ). The measurement was taken thrice and the mean measurement was considered. Results: The labial alveolar bone thickness in maxillary central incisor was found to be 0.55±0.27 mm at a distance of 2 mm from the CEJ. Only 2 (3.8%) of the samples had an alveolar thickness of >1 mm. No statistically significant difference was found with respect to gender and age. Conclusion: The average thickness of the labial alveolar bone in maxillary central incisor using cone beam computed tomography was found to be thin. 

scholarly journals location and dimension of mandibular canal on cone beam computed tomography: A cross sectional study

2019 ◽  
Vol 7 (4) ◽  
pp. 40-48
Author(s):  
Farzaneh Mirhoseini ◽  
Motahare Baghestani ◽  
Mohammad Hadi Khajezade ◽  
Ali Derafshi ◽  
Motahareh Kaboodsaz yazdi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Mandibular Canal ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Sectional Study ◽  
Cross Sectional

scholarly journals Safe zones of the maxillary alveolar bone in Down syndrome for orthodontic miniscrew placement assessed with cone-beam computed tomography

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jacobo Limeres Posse ◽  
María Teresa Abeleira Pazos ◽  
María Fernández Casado ◽  
Mercedes Outumuro Rial ◽  
Pedro Diz Dios ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Down Syndrome ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Cone Beam ◽  
Control Group ◽  
Alveolar Ridge ◽  
Cross Sectional ◽  
Second Molar ◽  
Areas Of Interest

Abstract The aim of this study was to quantify the available maxillary alveolar bone in a group of individuals with Down syndrome (DS) to determine the best areas for orthodontic miniscrew placement. The study group consisted of 40 patients with DS aged 12–30 years. We also selected an age and sex-matched control group. All measurements were performed on cross-sectional images obtained with cone-beam computed tomography. The selected areas of interest were the 4 interradicular spaces between the distal wall of the canine and the mesial wall of the second molar, in both maxillary quadrants. We measured the vestibular-palatine (VP) and mesiodistal (MD) dimensions to depths of 3, 6 and 9 mm from the alveolar ridge. We also measured the bone density in the same interradicular spaces of interest to 6 mm of depth from the alveolar crest. VP measurements were longer in the more posterior sectors and as the distance from the alveolar ridge increased. MD measurements also increased progressively as the distance from the alveolar ridge increased. In general, both the VP and MD measurements in the DS group were similar among the male and female participants. As age increased, the MD distance increased, while the VP distance decreased. The VP distance was ≥6 mm in at least 75% of the DS group in practically all assessed interdental spaces. The MD distance was ≥2 mm in at least 75% of the DS group only between the first and second molar, to 9 mm of depth from the alveolar ridge. The safe area for inserting orthodontic miniscrews in DS patients is restricted to the most posterior and deepest area of the maxillary alveolar bone.

scholarly journals Cross-Sectional Study of Mandibular Canal Branching in Regions Affected by Dental Inflammation with Cone Beam Computed Tomography

2019 ◽  
Vol 13 (2) ◽  
pp. 142-149
Author(s):  
Mauricio Augusto Aquino de-Castro ◽  
Manuel Oscar Lagravere Vich ◽  
Mauro Henrique Guimaraes Abreu ◽  
Ricardo Alves Mesquita
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Mandibular Canal ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Sectional Study ◽  
Cross Sectional

Relationship between buccal alveolar bone thickness and crown-to-root dimensions around mandibular first and second molars: A cone-beam-computed tomography-based study

2020 ◽  
pp. 1-9
Author(s):  
Nasser Alqhtani ◽  
Fawaz Alqahtani ◽  
Abdulrahman Almalki ◽  
Ahmed Alanazi ◽  
Hamad Alkhuriaf ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Length ◽  
Alveolar Bone ◽  
Data Extraction ◽  
Three Dimensional ◽  
Cone Beam ◽  
Bone Thickness ◽  
Cross Sectional ◽  
Implant Density

BACKGROUND: Assessment of buccal alveolar bone thickness (ABT) and crown-to-root dimensions are essential in implant density; therefore, three-dimensional evaluation of these parameters provides a superior visualization than conventional radiographs. OBJECTIVE: The present cross-sectional cohort study aims to investigate the relationship between buccal ABT and crown-to-root dimensions around the mandibular first and second molars using cone-beam-computed tomography (CBCT). METHODS: Initially, CBCT-based scans from 271 individuals were assessed. Based on the inclusion and exclusion criteria, 171 CBCT-based scans were excluded. In total, 100 CBCT-scans were included in the present investigation and processed for data extraction. On the mandibular first and second molars, the mesial and distal root lengths and mesiodistal diameter of the crowns were measured. The pulpal floor served as a reference point for assessment of root length. The buccal ABT was measured at the coronal, middle and apical one-third of the root. Statistical analysis was performed and the level of significance was set at P< 0.01. One-hundred CBCT-scans from 294 mandibular teeth (137 first molars and 157 second molars) were included. One hundred and eighty-nine and 105 teeth were from males and females, respectively. RESULTS: The normality plot showed a normal data distribution. The mesiodistal crown width showed a weak yet significant correlation with mesial root length (r= 0.137), bone thickness at mesial apical third (r= 0.180), distal apical (r= 0.157) and distal coronal third (r= 0.161). Bone thickness at mesial, middle and apical third correlated significantly with one other (r= 0.786). CONCLUSION: There is a direct correlation between the buccal ABT and tooth dimensions around the mandibular first and second molars.

scholarly journals Anatomic Variation in Lingual Foramen: A Cone beam Computed Tomography Study

2016 ◽  
Vol 7 (4) ◽  
pp. 179-181 ◽  
Author(s):  
Almas Binnal ◽  
E Ceena Denny ◽  
Ritika Jindal
Keyword(s):  
Computed Tomography ◽  
Surgical Procedures ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Anatomic Variation ◽  
Cone Beam ◽  
Cross Sectional ◽  
Lingual Foramen ◽  
Alveolar Crest ◽  
Significant Difference

ABSTRACT Background Lingual foramen is usually located in the midline, leveled with or superior to the genial tubercles. The success of implant placements is dependent on the radiological examination, which helps the clinician to determine the parameters of implant placement by revealing the structures like the course of the nerves, location of foramens, height and shape of alveolar bone, etc. The present study was done to assess the appearance, visibility, location, and types of lingual foramen in the mandibular region. Materials and methods A cross-sectional retrospective study was conducted using cone beam computed tomography (CBCT) images of 116 patients who attended the department for various imaging purposes. The examinations were carried out using the Promax three-dimensional (3D) CBCT unit. The cross-sectional images were examined to detect the presence, number, and position of the lingual foramen. Chi-square and Fisher's exact tests were used for comparison of categorical data. Results We observed lingual foramen in 116 patients and their number ranged from 1 to 3. When comparing the position, it was observed that lingual foramen was located at approximately two-thirds (60th percentile from the alveolar crest) distance from the alveolar crest to lower border of the mandible and there was no significant difference in various age groups or between both genders. Conclusion Lingual foramen transmits neurovascular bundles to surrounding structures, hence any damage to the lingual foramen during surgical procedures can result in hemorrhage and/or neurosensory disturbances. It is therefore mandatory for a dentist to be aware of the structures present in the anterior mandible when considering any surgical procedures or implant planning. Hence, CBCT plays a pivotal role during implant planning and surgical procedures in dentistry. How to cite this article Denny CE, Natarajan S, Ahmed J, Binnal A, Jindal R. Anatomic Variation in Lingual Foramen: A Cone beam Computed Tomography Study. World J Dent 2016;7(4):179-181.

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