scholarly journals Patterns of Root Morphology of Mandibular Third Molars and Their Clinical Implications in a Cohort of Sri Lankan Patients

Author(s):  
Nadeena Swarnagupta Jayasuriya ◽  
Irosha Rukmali Perera ◽  
Sakuntha Ratnapreya ◽  
Fhelen Debbie Da Costa
2020 ◽  
Vol 11 (SPL3) ◽  
pp. 1393-1398
Author(s):  
Ditty J Mary ◽  
Senthil Murugan P ◽  
Nashra Kareem

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.


2009 ◽  
Vol 8 (3) ◽  
pp. 237-240 ◽  
Author(s):  
K. Rajkumar ◽  
Sinha Ramen ◽  
Roy Chowdhury ◽  
P. K. Chattopadhyay

2007 ◽  
Vol 77 (1) ◽  
pp. 73-76 ◽  
Author(s):  
A. Altuğ Bıçakçı ◽  
Oral Sökücü ◽  
Hasan Babacan ◽  
H. Hüseyin Köşger

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.


BDJ ◽  
2001 ◽  
Vol 190 (4) ◽  
pp. 194-194 ◽  
Author(s):  
J. Cowpe

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