Comparison of Three-Dimensional and Conventional Orthodontic Imaging Modalities for Localization of Impacted Maxillary Canines in Patients With Alveolar Cleft

2020 ◽  
pp. 105566562094698
Author(s):  
Parviz Padisar ◽  
Maryam Tofangchiha ◽  
Behzad Salari ◽  
Sonia Oveisi
Keyword(s):  
Computed Tomography ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Imaging Modalities ◽  
Cone Beam ◽  
Impacted Tooth ◽  
Alveolar Cleft ◽  
Adjacent Tooth ◽  
Lateral Cephalograms

Objective: The purpose of this study was to identify which diagnostic parameters related to impacted maxillary canines can be reliably detected by the conventional orthodontic radiographic modalities and which factors need to be assessed by cone-beam computed tomography (CBCT). Design: In this cross-sectional study, 8 orthodontists evaluated 7 parameters related to the position and anatomy of the impacted canines by means of 2-dimensional (2D) records. After 1 month, the same process was repeated by means of CBCT by the same clinicians. Setting: Qazvin University of Medical Sciences. Patients and Participants: Thirty-two patients with alveolar cleft and impacted maxillary canines who had CBCT scans, lateral cephalograms, and orthopantomographs as pretreatment records. Main Outcome Measure: The diagnostic accuracy of 2D and 3-dimensional (3D) radiographic modalities was compared with each other and also with the gold standard by 3 radiologists. Results: The diagnostic accuracy of 2D and 3D imaging modalities was not significantly different regarding the mesiodistal inclination of the impacted tooth ( P = .09), apex anatomy ( P = .10), and mesiodistal position of the apex ( P = .19). Cone-beam computed tomography had significantly higher diagnostic accuracy than conventional radiographic modalities regarding overlapping the adjacent tooth ( P = .001), labio–palatal and apico–coronal position of the crown tip, and root resorption of the adjacent tooth ( P = .01). Conclusion: The conventional orthodontic radiographic modalities were as accurate as CBCT for determination of impacted canine inclination, apex anatomy, and mesiodistal position of the apex. Cone-beam computed tomography showed higher diagnostic accuracy for other parameters.

scholarly journals Comparison of radiographical characteristics and diagnostic accuracy of intraosseous jaw lesions on panoramic radiographs and CBCT

2020 ◽  
pp. 20200165
Author(s):  
Wei-yu Mao ◽  
Jie Lei ◽  
Li Zhen Lim ◽  
Yan Gao ◽  
Donald A Tyndall ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Differential Diagnosis ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Differential Diagnoses ◽  
Cone Beam ◽  
Imaging Features ◽  
Panoramic Radiographs ◽  
Imaging Characteristics

Objective: To investigate the differences in imaging characteristics and the diagnostic accuracy of 225 intraosseous jaw lesions on panoramic radiographs (PAN) versus cone beam computed tomography (CBCT). Methods: 225 sets of PAN and CBCT images with biopsy-proven histopathological diagnoses were retrospectively compared in terms of radiographic features and diagnostic accuracy. The imaging characteristics of PAN and CBCT were independently evaluated by two oral and maxillofacial radiologists who were required to answer 12 questions and provided up to three differential diagnoses with their confidence scores. Results: Odds ratios (ORs) were statistically significant for border cortication (OR = 1.521; p = .003) and border continuity (OR = 0.421; p = .001), involvement on neurovascular canals (OR = 2.424; p < .001), expansion (OR = 7.948; p < .001), cortical thinning (OR = 20.480; p < .001) as well as its destruction (OR = 25.022; p < .001) and root resorption (OR = 2.477; p < .001). Furthermore, imaging features in the posterior and mandibular regions showed better agreement than those in the anterior and maxillary regions, respectively. The diagnostic accuracy of the first differential diagnosis was higher on CBCT than on PAN (Observer 1:78.7 vs 64.4%; Observer 2: 78.7 vs 70.2% (p < .001)). The observers’ confidence scores were also higher at CBCT interpretation compared with PAN. Conclusions: CBCT demonstrated a greater number of imaging characteristics of intraosseous jaw lesions compared with PAN, especially in the anterior regions of both jaws and in the maxilla. Diagnostic accuracy is improved with CBCT compared to PAN, especially for lesions in the maxilla. Radiologists have greater confidence when using CBCT.

scholarly journals Cone-beam computed tomography versus periapical radiograph for diagnosing external root resorption: A systematic review and meta-analysis

2016 ◽  
Vol 87 (2) ◽  
pp. 328-337 ◽  
Author(s):  
Jianru Yi ◽  
Yimin Sun ◽  
Yu Li ◽  
Chunjie Li ◽  
Xiaobing Li ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Systematic Review ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Area Under Curve ◽  
Root Resorption ◽  
Meta Analysis ◽  
Cone Beam ◽  
Cochrane Central Register ◽  
External Root Resorption

ABSTRACT Objective: To compare the diagnostic accuracy of cone-beam computed tomography (CBCT) and periapical radiographs (PR) for the detection of external root resorption (ERR). Material and Methods: An electronic search in databases, including the Cochrane Central Register of Controlled Trials, PubMed, Embase, the China National Knowledge Infrastructure, and System for Information on Grey Literature in Europe (SIGLE), was performed until August 2016. A manual search of relevant journals and reference lists of enrolled studies was conducted. The studies investigating the diagnostic accuracy of CBCT or PR for ERR, with simulated ERR as the reference test, were considered eligible. The diagnostic accuracy of CBCT and PR was statistically pooled using a bivariate model. Meta-regression and subgroup analysis were performed to explore the sources of heterogeneity. Sensitivity analysis was used to test the stability of the overall results in the meta-analysis. Results: A total of 15 studies were included in this systematic review. The pooled results showed that CBCT had significantly higher sensitivity (0.89; 95% confidence interval [CI]: 0.77–0.96) and area under curve (0.96; 95% CI: 0.77–0.96) than PR (sensitivity: 0.68; 95% CI: 0.56–0.78; area under curve: 0.88; 95% CI: 0.85–0.90). No difference in sensitivity, specificity, and area under the curve between conventional and digital PR was observed. Conclusions: Currently available evidence suggests that CBCT could be reliable to detect the presence of ERR in clinical practice and has a higher diagnostic efficacy than PR.

scholarly journals Diagnosis of invasive cervical resorption by using cone beam computed tomography: report of two cases

2012 ◽  
Vol 23 (5) ◽  
pp. 602-607 ◽  
Author(s):  
Karla de Faria Vasconcelos ◽  
Yuri Nejaim ◽  
Francisco Haiter Neto ◽  
Frab Norberto Bóscolo
Keyword(s):  
Computed Tomography ◽  
Differential Diagnosis ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Root Resorption ◽  
Imaging Modality ◽  
Relevant Information ◽  
Cone Beam ◽  
Short Period ◽  
Radiographic Interpretation

A radiographic interpretation is essential to the diagnosis of invasive cervical resorption (ICR) and the difficulty in distinguishing this lesion from internal root resorption has been highlighted in the literature. This paper reports the use of cone beam computed tomography (CBCT) in the diagnosis of ICR. The cases reports describe how CBCT can be used to make a differential diagnosis and also show that the use of this technology can provide relevant information on the location and nature of root resorption, which conventional radiographs cannot. As a result, the root canal treatment was not initially considered. The patients will be monitored and will undergo a scan after a short period of time to detect any small changes. It was observed that both cases benefited from CBCT in the diagnosis of ICR, because this imaging modality determined the real extent of resorption and possible points of communication with the periodontal space.

scholarly journals Diagnostic accuracy of cone beam computed tomography in detection of simulated mandibular condyle erosions

2015 ◽  
Vol 6 (3) ◽  
pp. 97 ◽  
Author(s):  
Nafiseh Nikkerdar ◽  
Shahriar Shahab ◽  
Maryam Goodarzi ◽  
Amin Golshah ◽  
SanazSharifi Shooshtari
Keyword(s):  
Computed Tomography ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Mandibular Condyle ◽  
Cone Beam

scholarly journals Frequency and Severity of Second Molar External Root Resorption Due to the Adjacent Third Molar and Related Factors: A Cone-Beam Computed Tomography Study

2021 ◽  
Author(s):  
Shirin Sakhdari ◽  
Sara Farahani ◽  
Ehsan Asnaashari ◽  
Sahel Marjani
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Third Molar ◽  
Cone Beam ◽  
Radiology Department ◽  
Third Molars ◽  
Related Factors ◽  
Second Molar ◽  
External Root Resorption

Objective: This study sought to assess the frequency and severity of second molar external root resorption (ERR) due to the adjacent third molar and its correlation with the position of third molar and other related factors using cone-beam computed tomography (CBCT). Materials and Methods: This cross-sectional study evaluated 320 second molars and their adjacent impacted third molars on CBCT scans of patients over 16 years, retrieved from the archives of Azad University Radiology Department. Presence/absence of second molar ERR, its location and severity (if present), and position of adjacent third molar were determined on CBCT scans, and recorded in a checklist. Data were analyzed using a logistic regression model. Results: The frequency of second molar ERR was 33.4% in the mandible and 14% in the maxilla. The severity of ERR was significantly correlated with the involved jaw (P=0.001) but had no correlation with age, gender, or depth of impaction of adjacent third molar (P>0.05). The mesioangular and horizontal positions of impacted third molars had a significant correlation with the frequency of second molar ERR (P<0.006). Conclusion: According to the results of this study, ERR occurring in second molars adjacent to third molars is common, especially in the mandible. Mesially inclined third molars have a greater potential of being associated with ERR in second molars.

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