Anatomical changes of the mandibular canal, displaced root fragment and neurosensory deficit after removal of a mandibular third molar: report of a case

Oral Surgery ◽  
2011 ◽  
pp. no-no
Author(s):  
P. Ninkov ◽  
D. Svanaes ◽  
T. Bjørnland
Keyword(s):  
Third Molar ◽  
Mandibular Canal ◽  
Anatomical Changes ◽  
Mandibular Third Molar

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 Relation between mandibular third molar and mandibular canal as assessed by three-dimensional Computed tomographic reconstruction.

2000 ◽  
Vol 46 (5) ◽  
pp. 251-261 ◽  
Author(s):  
Toshinori TANAKA ◽  
Kei MURAKAMI ◽  
Tsuyoshi KISHIDA ◽  
Takatoshi ITOH ◽  
Yasuhiko MORITA ◽  
...  
Keyword(s):  
Tomographic Reconstruction ◽  
Three Dimensional ◽  
Third Molar ◽  
Mandibular Canal ◽  
Computed Tomographic ◽  
Mandibular Third Molar

scholarly journals Ameloblastic fibro-odontoma associated with paresthesia of the chin and lower lip in a 12-year-old girl

2019 ◽  
Vol 7 ◽  
pp. 2050313X1987064
Author(s):  
Dereen Mohammed Saeed ◽  
Suman Setty ◽  
Michael R Markiewicz ◽  
Robert J Cabay
Keyword(s):  
Panoramic Radiography ◽  
Third Molar ◽  
Mandibular Canal ◽  
Tissue Formation ◽  
Hard Tissue ◽  
Lower Lip ◽  
Odontogenic Epithelium ◽  
Mandibular Third Molar ◽  
Close Proximity ◽  
The Right

Ameloblastic fibro-odontoma is a rare, benign, and slowly growing neoplasm of the jaw composed of proliferating odontogenic epithelium in ectomesenchymal tissue along with dental hard tissue formation. Herein, we describe a case of an ameloblastic fibro-odontoma in 12-year-old female with paresthesia of the chin and lower lip. Panoramic radiography showed a radio-opacity in the right posterior mandible near the mandibular canal and associated with the right mandibular third molar. Histologically, the lesion contained epithelial and mesenchymal odontogenic components in close proximity to odontoma-like elements. Enucleation and curettage of the affected site in the mandible resulted in resolution of the paresthesia postoperatively.

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.

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.

scholarly journals Modified coronectomy procedure for mandibular third molar: association of platelet-rich fibrin

2021 ◽  
Vol 69 ◽  
Author(s):  
Ronaldo Célio MARIANO ◽  
Alexandre Augusto Ferreira da SILVA ◽  
Guilherme Menali GOMES ◽  
Luis Henrique Theodoro ALVES ◽  
Marina Reis OLIVEIRA
Keyword(s):  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Panoramic Radiograph ◽  
Mandibular Canal ◽  
Modified Technique ◽  
Present Case Report ◽  
Platelet Rich Fibrin ◽  
Good Healing ◽  
Mandibular Third Molar

ABSTRACT The present case report describes a modified technique of coronectomy for mandibular third molar with association of Platelet-Rich Fibrin Graft (PRF). The panoramic radiograph showed proximity of the roots of the vertical positioned 48 tooth with the superior wall of the mandibular canal, since the erasure of the superior cortical of the mandibular canal was observed. Due to the risk of injury to the inferior alveolar nerve, the technique of coronectomy was chosen. After the realized the coronectomy, in order to promote the regeneration of soft and hard tissues and also to prevent pulp changes that could lead to pain, pulp necrosis and infection, the PRF graft was used to fill the surgical defect formed by removal of the crown. Good healing evolution was observed and after 12 months of clinical and radiographic follow-up there was complete bone formation in the area where the crown was removed and no complications were observed.

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