Cranial Maxillofac Trauma Reconstruction 2019; 12(04): 291-300
DOI: 10.1055/s-0039-1685459
Original Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Impacted Mandibular Third Molars and Their Influence on Mandibular Angle and Condyle Fractures

Anhad Mehra
1  Department of Oral and Maxillofacial Surgery, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India
,
Venkatesh Anehosur
1  Department of Oral and Maxillofacial Surgery, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India
,
Niranjan Kumar
2  SDM Craniofacial Unit and Research Centre, SDM College of Medical Sciences and Hospital, Dharwad, Karnataka, India
› Author Affiliations
Further Information

Publication History

14 July 2018

07 February 2019

Publication Date:
02 April 2019 (online)

Abstract

The aim of this study is to retrospectively analyze the effect unerupted or partially erupted third molars have on the angle and condyle fracture patterns of the mandible. It also focuses on evaluating the type of impaction that causes angle fracture and the level at which the condyle most commonly fractures. The study involves all the patients who had undergone treatment for condylar and angle of the mandible fractures from 2010 to 2017 in our craniofacial center. The case records and orthopantomograms of each patient were taken into consideration and a correlation was established based on gender, age, etiology, presence of third molars, position of third molars, angulation, and root development of third molars. Of the 150 angle fracture patients, 146 had third molars and 4 did not, whereas of the 130 condyle fractures, third molar was present in 54 patients and absent in 76. The prevalence of angle fractures was statistically significant when a third molar was present, whereas the prevalence of condyle fractures was higher when third molar was absent. The results of age, etiology, angulation, position, and root development of third molars were also statistically significant. However, sex of the patient did not influence the fracture pattern. The presence of an impacted third molar or a completely erupted one has a definite influence on the fracture pattern of the mandible. The occurrence of angle and condyle fractures was mostly affected by the continuity of the cortical bone at the angle of the mandible. Hence, prophylactic removal of mandibular third molars does increase the risk of condyle fractures.

Ethical Approval Clearance

The manuscript was reviewed by Institutional review Board for publication.


Owing to the retrospective nature of this study, it was granted an exemption in writing by the Research Committee of the SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India. This article does not contain any studies with human participants or animals performed by any of the authors.