scholarly journals Anatomical study of the relationship of impacted mandibular third molar root apex to inferior alveolar canal in Kurdistan population using orthopantomogram

2017 ◽  
Vol 21 (3) ◽  
pp. 1859-1868
Author(s):  
Fedil Yalda ◽  
Ali Al-Refai ◽  
Khoshee Al-Mufty
Keyword(s):  
Third Molar ◽  
Anatomical Study ◽  
Root Apex ◽  
Impacted Mandibular Third Molar ◽  
Mandibular Third Molar ◽  
Inferior Alveolar Canal ◽  
Relationship Of ◽  
The Relationship

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.

Evaluation of Mandibular Third Molar Region in a Turkish Population Using Cone-Beam Computed Tomography

2020 ◽  
Vol 16 (9) ◽  
pp. 1105-1110
Author(s):  
Büyük Kaan Orhan ◽  
Dilek Yılmaz ◽  
Mehmet Ozgur Ozemre ◽  
Kıvanç Kamburoğlu ◽  
Orhan Gulen ◽  
...  
Keyword(s):  
Statistical Significance ◽  
Third Molar ◽  
Mandibular Canal ◽  
Third Molars ◽  
Second Molar ◽  
The Third ◽  
Impacted Mandibular Third Molar ◽  
Mandibular Third Molar ◽  
The Relationship ◽  
Molar Region

Objectives: To evaluate impacted mandibular third molar tooth region and obtain linear measurements using CBCT images and to assess the relationship between the impacted third molar and the mandibular canal. Methods: CBCT scans of 351 patients (208 females, 143 males) were assessed. Age, gender, and impaction site were recorded for each patient. The relationship of third molars with the vertical axis of second molars, 2nd molar resorption and the relationship between third molar apices and the mandibular canal were assessed. In addition, the distance between ramus and second molar, mesiodistal width of the third molar, the angle between third molar and second molar, and width of the third molar capsule were measured. Binary Logistic Regression, Chi-Square Test, and General Linear Model were used for statistical analysis. Results: The highest percentage of impaction was found for mesioangular followed by transversal and vertical. The transversal impacted third molars revealed a significant association with adjacent second molar root resorption (p<0.001). There was a statistical significance between the second molar resorption and distance between ramus and second molar (p<0.001). The mesioangular impacted third molars revealed significant relation with the mandibular canal (p<0.05). The most frequent variation found was the dental canal followed by the retromolar canal. In general, higher measurement values were obtained for men when compared to women (p<0.05). Conclusion: CBCT assessment of the third molar region provided useful information regarding impacted mandibular third molar surgery operations.

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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