scholarly journals Correlation of panoramic radiography and cone beam CT findings in the assessment of the relationship between impacted mandibular third molars and the mandibular canal

2012 ◽  
Vol 41 (7) ◽  
pp. 553-557 ◽  
Author(s):  
F S Neves ◽  
T C Souza ◽  
S M Almeida ◽  
F Haiter-Neto ◽  
D Q Freitas ◽  
...  
Keyword(s):  
Panoramic Radiography ◽  
Cone Beam Ct ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Third Molars ◽  
Ct Findings ◽  
Impacted Mandibular Third Molars ◽  
Mandibular Third Molars ◽  
The Relationship

Diagnostic accuracy of panoramic radiography, stereo-scanography and cone beam CT for assessment of mandibular third molars before surgery

2013 ◽  
Vol 71 (6) ◽  
pp. 1391-1398 ◽  
Author(s):  
Louise Hauge Matzen ◽  
Jennifer Christensen ◽  
Hanne Hintze ◽  
Søren Schou ◽  
Ann Wenzel
Keyword(s):  
Diagnostic Accuracy ◽  
Panoramic Radiography ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Third Molars ◽  
Mandibular Third Molars

scholarly journals Comparison of panoramic radiography and cone beam CT in the assessment of juxta-apical radiolucency

2018 ◽  
Vol 47 (1) ◽  
pp. 20170198 ◽  
Author(s):  
Eduarda Helena Leandro Nascimento ◽  
Anne Caroline Costa Oenning ◽  
Bernardo Barbosa Freire ◽  
Hugo Gaêta-Araujo ◽  
Francisco Haiter-Neto ◽  
...  
Keyword(s):  
Panoramic Radiography ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Cortical Plate ◽  
Multiple Logistic Regression ◽  
Third Molars ◽  
Factors Associated ◽  
The Mean ◽  
Mandibular Third Molars ◽  
Cortical Involvement

Objectives: To compare the performance of panoramic radiography (PAN) and cone beam CT (CBCT) in the detection of juxta-apical radiolucency (JAR), as well as to investigate, in CBCT images, if there are factors associated with the detection of JAR on PAN. Methods: Two oral radiologists assessed the presence of JAR in PAN and CBCT images of 175 individuals (308 mandibular third molars). The cortical plates involvement and the JAR size and location were assessed on CBCT to evaluate if these factors were related to JAR detection on PAN. McNemar’s test and multiple logistic regression were performed. Results: PAN and CBCT differed significantly in the detection of JAR (p = 0.001). On PAN, JAR was identified on 24% of the patients while on CBCT its detection increased to 32.6%. JAR was detected only on CBCT and only on PAN in 26 and 7 cases, respectively. Distal/mesial surfaces of dental roots were where JAR was mostly located (84.5%), cortical thinning was found in 59.2% of cases and the mean (SD) of JAR size was 5.03 (±1.8) mm. However, these factors were not associated with JAR detection on PAN (p > 0.05). On the other hand, the location of the cortical involvement (if buccal or lingual) was associated with JAR detection on PAN, which was more detectable when the thinning was on buccal cortical. Conclusions: Juxta-apical radiolucency is more often detected on CBCT than on PAN. JAR detection on PAN was improved when it was related to the buccal cortical plate of the mandible.

scholarly journals Accuracy of Panoramic Radiograph in Assessment of the Relationship Between Mandibular Canal and Impacted Third Molars

2016 ◽  
Vol 10 (1) ◽  
pp. 322-329 ◽  
Author(s):  
Weeraya Tantanapornkul ◽  
Darika Mavin ◽  
Jaruthai Prapaiphittayakun ◽  
Natnicha Phipatboonyarat ◽  
Wanchanok Julphantong
Keyword(s):  
Direct Contact ◽  
Digital Images ◽  
Third Molar ◽  
Mandibular Canal ◽  
Diagnostic Tools ◽  
Canal Wall ◽  
Third Molars ◽  
Impacted Mandibular Third Molars ◽  
Mandibular Third Molars ◽  
The Relationship

Background: The relationship between impacted mandibular third molar and mandibular canal is important for removal of this tooth. Panoramic radiography is one of the commonly used diagnostic tools for evaluating the relationship of these two structures. Objectives: To evaluate the accuracy of panoramic radiographic findings in predicting direct contact between mandibular canal and impacted third molars on 3D digital images, and to define panoramic criterion in predicting direct contact between the two structures. Methods: Two observers examined panoramic radiographs of 178 patients (256 impacted mandibular third molars). Panoramic findings of interruption of mandibular canal wall, isolated or with darkening of third molar root, diversion of mandibular canal and narrowing of third molar root were evaluated for 3D digital radiography. Direct contact between mandibular canal and impacted third molars on 3D digital images was then correlated with panoramic findings. Panoramic criterion was also defined in predicting direct contact between the two structures. Results: Panoramic findings of interruption of mandibular canal wall, isolated or with darkening of third molar root were statistically significantly correlated with direct contact between mandibular canal and impacted third molars on 3D digital images (p < 0.005), and were defined as panoramic criteria in predicting direct contact between the two structures. Conclusion: Interruption of mandibular canal wall, isolated or with darkening of third molar root observed on panoramic radiographs were effective in predicting direct contact between mandibular canal and impacted third molars on 3D digital images. Panoramic radiography is one of the efficient diagnostic tools for pre-operative assessment of impacted mandibular third molars.

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