scholarly journals Comparison of panoramic radiography with cone beam CT in predicting the relationship of the mandibular third molar roots to the alveolar canal

2013 ◽  
Vol 43 (2) ◽  
pp. 105 ◽  
Author(s):  
Shoaleh Shahidi ◽  
Barbod Zamiri ◽  
Pegah Bronoosh
Keyword(s):  
Panoramic Radiography ◽  
Cone Beam Ct ◽  
Third Molar ◽  
Cone Beam ◽  
Mandibular Third Molar ◽  
Relationship Of ◽  
The Relationship

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 Comparison of Orthopantomography and Computed Tomography Image for Assessing the Relationship between Impacted Mandibular Third Molar and Mandibular Canal

2012 ◽  
Vol 13 (6) ◽  
pp. 819-823 ◽  
Author(s):  
Uma Shankar ◽  
KR Hari ◽  
T Praveen Kumar Reddy ◽  
Shravan Kumar Katakam ◽  
Deepti Janga
Keyword(s):  
Computed Tomography ◽  
Third Molar ◽  
Mandibular Canal ◽  
Impacted Mandibular Third Molar ◽  
Mandibular Third Molar ◽  
Significant Difference ◽  
Tomography Image ◽  
Computed Tomography Image ◽  
Relationship Of ◽  
The Relationship

ABSTRACT Background Permanent mandibular third molar are most commonly impacted teeth. In planning the surgical removal of mandibular third molar, correct diagnosis requires not only their precise spatial location, but also a thorough and accurate assessment of the intimate relationship with adjacent anatomical structures. Various imaging modalities have been used for localizing the mandibular third molar but not satisfactorily. Aim This prospective study of 30 patients with 42 impacted mandibular third molars was carried out with the aim of finding evidence for justifying the use of computed tomography and orthopantomography as a diagnostic modality, prior to surgical intervention of impacted mandibular third molar. Materials and methods Subjective evaluation of the CT and OPG images by two observed had shown that there was significant difference between the CT and OPG for radiographic visibility of mandibular canal in relation to third molar. Results Data analysis was done with Chi-square test (χ2) and z-test to find the significant difference between the two radiographic modalities OPG and CT in localizing special relationship of impacted mandibular third molar. The comparison of OPG and CT showed z-value >1.5 in darkening of roots (1.98), deflection of root (2.00) interruption of z-value = 0 in narrowing of canal and dark, bifid apexes. Also it showed p-value <0.05 in all the radiographic signs except narrowing of mandibular canal and and dark and bifid apexes. Conclusion The spiral CT image provides a unique opportunity to determine the exact position of impacted mandibular third molar and their relationship to adjacent structure in all three planes. Clinical significance Computed tomography is highly instrumental in depicting the relationship of mandibular third molar with inferior alveolar nerve canal before treatment and accurate appraisal of the several aspects can be made regarding prognosis. How to cite this article Katakam SK, Shankar U, Thakur D, Reddy TPK, Hari KR, Janga D. Comparison of Orthopantomography and Computed Tomography Image for Assessing the Relationship between Impacted Mandibular Third Molar and Mandibular Canal. J Contemp Dent Pract 2012;13(6):819-823.

The relationship of the lingual nerve to the mandibular third molar region: An anatomic study

1995 ◽  
Vol 53 (10) ◽  
pp. 1178-1181 ◽  
Author(s):  
M.Anthony Pogrel ◽  
Andrew Renaut ◽  
Brian Schmidt ◽  
Awnie Ammar
Keyword(s):  
Third Molar ◽  
Lingual Nerve ◽  
Anatomic Study ◽  
Mandibular Third Molar ◽  
Relationship Of ◽  
The Relationship ◽  
Molar Region

scholarly journals Does the Relationship between Retained Mandibular Third Molar and Mandibular Angle Fracture Exist? An Assessment of Three Possible Causes

2012 ◽  
Vol 5 (3) ◽  
pp. 127-135 ◽  
Author(s):  
Bruno G. Duarte ◽  
Diogo Assis ◽  
Paulo Ribeiro-Júnior ◽  
Eduardo Sanches Gonçales
Keyword(s):  
Extraction Procedure ◽  
Third Molar ◽  
Third Molars ◽  
Mandibular Angle Fracture ◽  
Mandibular Third Molar ◽  
Angle Fracture ◽  
Mandible Fractures ◽  
Angle Fractures ◽  
Relationship Of ◽  
The Relationship

The objective of this study is to discuss problems associated with dental retention through three clinical cases of mandible fractures related to the presence of retained lower third molars, emphasizing the possibility of mandible fractures resulting from this or from the extraction procedure. The three evaluated patients had a fracture in the mandible angle. The third molars were present in all the cases, as was the relationship of the fracture with the teeth. After evaluating the three cases and reviewing literature, it is believed that the presence of the retained lower third molars and the surgical procedures for their extraction increase the risk of mandible angle fractures.

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