Diagnosis of external root resorption in second molars associated with impacted third molars by panoramic radiograph and two cone beam computed tomography devices

2014 ◽  
Author(s):  
Anne Caroline Costa Oenning
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Panoramic Radiograph ◽  
Cone Beam ◽  
Third Molars ◽  
External Root Resorption

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.

scholarly journals Impacted Third Molars and Its Propensity to stimulate External Root Resorption in Second Molars: Comparison of Orthopantomogram and Cone Beam Computed Tomography

2017 ◽  
Vol 8 (4) ◽  
pp. 281-287
Author(s):  
Almas Binnal ◽  
Zeena V D'Costa ◽  
Junaid Ahmed
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Third Molar ◽  
Cone Beam ◽  
Third Molars ◽  
Panoramic Radiographs ◽  
Second Molar ◽  
Impacted Third Molar ◽  
External Root Resorption

ABSTRACT Aim This study was designed to compare the efficiency of conebeam computed tomography (CBCT) with panoramic radiography to discern external root resorption (ERR) in second molars. Materials and methods This was a retrospective study with a sample size of 50 participants who had a total of 120 impacted third molars visible on panoramic radiographs and CBCT images. The presence of ERR on the neighboring second molar was assessed and the position of impacted third molar was determined using Pell and Gregory classification. The ERR was registered according to Al-Khateeb and Bataineh's criteria. The location and severity were assessed by Ericson et al criteria, and grading of ERR was done as per the criteria given by Nemcovsky. Results The CBCT was able to locate and identify extremely large number of cases with ERR on second molars in comparison with the panoramic radiographs. Based on Pell and Gregory classification, position B was most common. The ERR on second molars was most commonly seen at the cervical region. Most of the cases had mild severity. As per grading mentioned by Nemcovsky, maximum number of cases were given grade A followed by grade B. Conclusion According to our study and considering the threedimensional information obtained from CBCT, we found that ERR was better detected with CBCT. Clinical significance If on panoramic radiographs, a close contact is detected between the second molar and an impacted third molar, CBCT can be advised taking into account the “risk vs reward ratio.” How to cite this article D'Costa ZV, Ahmed J, Ongole R, Shenoy N, Denny C, Binnal A. Impacted Third Molars and Its Propensity to stimulate External Root Resorption in Second Molars: Comparison of Orthopantomogram and Cone Beam Computed Tomography. World J Dent 2017;8(4):281-287.

scholarly journals Evaluation of orthodontically induced external root resorption following orthodontic treatment using cone beam computed tomography (CBCT): a systematic review and meta-analysis

2018 ◽  
Vol 41 (1) ◽  
pp. 67-79 ◽  
Author(s):  
Aikaterini Samandara ◽  
Spyridon N Papageorgiou ◽  
Ioulia Ioannidou-Marathiotou ◽  
Smaragda Kavvadia-Tsatala ◽  
Moschos A Papadopoulos
Keyword(s):  
Computed Tomography ◽  
Systematic Review ◽  
Cone Beam Computed Tomography ◽  
Orthodontic Treatment ◽  
Root Resorption ◽  
Meta Analysis ◽  
Cone Beam ◽  
External Root Resorption

scholarly journals In vitro comparison of cone beam computed tomography with different voxel sizes for detection of simulated external root resorption

2012 ◽  
Vol 54 (3) ◽  
pp. 219-225 ◽  
Author(s):  
Frederico S. Neves ◽  
Deborah Q. de Freitas ◽  
Paulo S. F. Campos ◽  
Solange M. de Almeida ◽  
Francisco Haiter-Neto
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Cone Beam ◽  
External Root Resorption ◽  
In Vitro Comparison

Diagnosis of cracked teeth using cone-beam computed tomography: Literature review and clinical experience

2020 ◽  
pp. 20200407
Author(s):  
Antian Gao ◽  
Dantong Cao ◽  
Zitong Lin
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
American Association ◽  
Root Resorption ◽  
Cone Beam ◽  
Related Factors ◽  
External Root Resorption ◽  
Factors Influencing ◽  
Root Fractures ◽  
Clinic Practice

Cone-beam computed tomography (CBCT) has been widely used in diagnosis of vertical root fractures (VRFs) in recent years. According to the American Association of Endodontists (AAE) classification, there are five types of cracked teeth and VRF is one of them. Due to the variability and overlapping of the cracks and fractures, some narrow fractures on the roots of VRFs could not be detected by CBCT, and some wide cracks on the crown of cracked teeth could be detected by CBCT. In this review, we firstly discussed the value of CBCT in the diagnosis of the AAE five types of cracked teeth and presented CBCT manifestations of some typical cases. Secondly, we summarized the factors influencing the diagnosis of cracks/fractures using CBCT, namely, CBCT device-related factors, patient-related factors, and evaluator-related factors. The possible strategies to improve the diagnostic accuracy in the clinic practice are also discussed in this part. Finally, we compared the differences of root fractures with lateral canals and external root resorption on CBCT images.

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