1Resident, Manipal College of Dental Sciences, Mangalore
2Associate Professor, Department of Orthodontics & Dentofacial Orthopedics, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Karnataka, India
3Prof & HoD, Dept. of Orthodontics, Manipal College of Dental Sciences, Mangalore
4Assistant Professor, Dept. of Orthodontics, Manipal College of Dental Sciences, Mangalore
5Resident, Division of Orthodontics, Case Western Reserve University, Ohio, USA
*Corresponding Author: Dr. Supriya Nambiar Associate Professor, Department of Orthodontics & Dentofacial orthopedics, Manipal college of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Karnataka, India. Email- nambiar.supriya@gmail.com
Online published on 26 September, 2019.
The significance of occlusion and its importance as a causative factor and aggravator of temporomandibular disorders (TMD) is a much debated subject.
The primary objective of this study was to investigate the association between varying path of closure and TMD.
90 subjects aged from 12 to 25 year subjects were divided into four groups comprising patients exhibiting forward, backward, lateral and normal path of closure. The Helkimo Anamnestic and Dysfunction Index modified by Athanasiou and Melsen (HI) was used for the clinical evaluation of the temporomandibular joint (TMJ) in order to classify the TMD and the amount of severity.
Patients having an altered path of closure of the showed substantially higher scores of Helkimo Anamnestic index. Among the three different subject groups more severe form of TMD were associated with the forward path of closure followed by backward, and then lateral path of closure.
Patients having an altered path of closure of the mandible showed increased association with TMD as compared to the patients having the normal path of closure which makes it imperative to evaluate the TMJ in patients with altered path of closure.
Malocclusion, Mandible, Temporomandibular Joint Disorders
