scholarly journals Root morphology of maxillary and mandibular third molars - A potential cause for trans alveolar extractions

2020 ◽  
Vol 11 (SPL3) ◽  
pp. 1393-1398
Author(s):  
Ditty J Mary ◽  
Senthil Murugan P ◽  
Nashra Kareem
Keyword(s):  
Data Analysis ◽  
Treatment Planning ◽  
Significant Role ◽  
Root Morphology ◽  
Preoperative Assessment ◽  
Third Molars ◽  
Root Curvature ◽  
Surgical Difficulty ◽  
Mandibular Third Molars

Maxillary and mandibular third molars with dilacerated root forms and curvature play a significant role in the treatment planning regarding whether the tooth can be extracted normally or go for trans alveolar extraction. The aim of this study is to assess the association of root curvature and trans alveolar extraction of upper and lower third molars. Preoperative assessment reduces the surgical difficulty and is fundamental for treatment planning and extraction of impacted third molars. We reviewed the case records of the patients who underwent trans alveolar extraction and analysed the data of 94 patients from June 2019 to March 2020 and was tabulated in excel. The data analysis was done in SPSS by IBM, and output was generated as bar charts. In this study, we observed that out of the total 94 trans alveolar extraction performed, 50% of the incidence was below 45 years out of which dilacerated roots were present in 28.7% cases. Results were tabulated and represented as bar charts.so within the limitations of the study we observed that root morphology did not have a significant role in deciding about the treatment whether the teeth will go for open or transalveolar extraction.

scholarly journals Mesial Migration Effect on Root Morphology of Mandibular Third Molars

2007 ◽  
Vol 77 (1) ◽  
pp. 73-76 ◽  
Author(s):  
A. Altuğ Bıçakçı ◽  
Oral Sökücü ◽  
Hasan Babacan ◽  
H. Hüseyin Köşger
Keyword(s):  
Third Molar ◽  
Root Apex ◽  
Central Line ◽  
Occlusal Plane ◽  
Third Molars ◽  
Migration Effect ◽  
Mandibular Third Molar ◽  
Root Curvature ◽  
History Of ◽  
Mandibular Third Molars

Abstract Objective: To test the hypothesis that there is a relationship between forward mandibular third molar migration and root curvature of the mandibular third molars. Materials and Methods: The study is comprised of 64 patients who had a history of unilateral mandibular first molar extraction before 16 years of age with no other missing teeth or prosthetic restorations in the mandible. The extraction space was fully or partly closed. The mean remaining space was 1.1 ± 0.41 mm. The root angles for the mesial and distal roots of the mandibular third molars were measured on the panoramic radiographs by calculating the differences between the angle formed by the long axis drawn perpendicular to the occlusal plane of the crown of mandibular third molar and the central line of the lower one ninth of the root through the root apex. The differences between the extracted and nonextracted sides for mesial and distal roots were analyzed using a paired sample t-test. Results: Both mesial and distal roots were approximately 8° more vertical on the extraction sides than on the nonextraction sides. The differences were statistically significant. Conclusion: Mesial tooth migration of mandibular third molars reduces the amount of root curvature developing on this tooth.

Treatment planning for mandibular third molars

Dental Update ◽  
2017 ◽  
Vol 44 (3) ◽  
pp. 221-228 ◽  
Author(s):  
James Barraclough ◽  
Andrew Power ◽  
Amit Pattni
Keyword(s):  
Treatment Planning ◽  
Third Molars ◽  
Mandibular Third Molars

Relative Impact of Patient Characteristics and Radiographic Variables on the Difficulty of Removing Impacted Mandibular Third Molars

2008 ◽  
Vol 9 (4) ◽  
pp. 51-58 ◽  
Author(s):  
Oladimeji A. Akadiri ◽  
Ambrose E. Obiechina ◽  
Juwon T. Arotiba ◽  
Abiodun O. Fasola
Keyword(s):  
Patient Characteristics ◽  
Surgical Removal ◽  
Relative Impact ◽  
Third Molars ◽  
Specific Patient ◽  
Tooth Impaction ◽  
Duration Of Surgery ◽  
Impacted Mandibular Third Molars ◽  
Surgical Difficulty ◽  
Mandibular Third Molars

Abstract Aim The aim of this study was to assess the relative contributions of patient characteristics and radiographic variables to the difficulty of extraction of impacted mandibular third molars in a Nigerian population. Methods and Materials Seventy-nine consecutive patients undergoing mandibular third molar extractions were recruited for this prospective cohort study. Specific patient characteristics and radiographic variables were recorded. All extractions were performed under local anesthesia by the same oral surgeon, and the surgical difficulty was assessed based on the duration of surgery. Results Body weight (BW) (P=0.009) and body surface area (BSA) (P=0.004) were the significant patient characteristics while tooth impaction depth (P=0.002), number of roots (P=0.035), and tooth angulation (P=0.003) were the significant radiographic variables associated with surgical difficulty using a univariate analysis. A multiple linear regression model was constructed with these variables using surgical difficulty as the dependent variable. Radiographic factors were found to be the more important determinants of surgical difficulty with the depth of impaction (P=0.038) being the singular most important factor. Conclusion Although the difficulty of surgical removal of impacted lower third molars is dependent on BW, BSA, impaction depth, tooth angulation, and the number of roots, radiographic variables were of greater importance with impaction depth being the most important single factor. Citation Akadiri OA, Obiechina AE, Arotiba JT, Fasola AO. Relative Impact of Patient Characteristics and Radiographic Variables on the Difficulty of Removing Impacted Mandibular Third Molars. J Contemp Dent Pract 2008 May; (9)4:051-058.

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