Muhammad Umar Shah, Mohsin Fazal, Shafquat Hussain Khuwaja, Faiza Awais, Shakila Mushtaq, Ashtiaq Sultan, Khezran Qamar.
Prevalence of TMJ disorders among dental students and its relation to malocclusion.
Pak Oral Dental J Jan ;40(4):255-9.

The objective of the present study was to evaluate the correlation between temporomandibular joint (TMJ) problems and types of malocclusion in dental students. It was a cross sectional study. Total 200 dental students both males and females, fulfilling the inclusion criteria were selected from Lahore Medical and Dental College, Lahore. The age ranged from 17 to 30 years with the mean age 21.38 (+-SD 2.281) years. Non probability purposive sampling was used for subjects selection. Informed verbal consent was taken. The most common type of malocclusion existed among dental students in this study was Class II malocclusion followed by Class I and then Class III. Similarly clicking was found to be the most common TMJ problem out of all that were evaluated. Correlation between symptoms of TMJ pain with clicking and head and neck pain was significant (P< 0.05). Most of the students who had TMJ pain also had clicking, deviation and limited mouth opening. Joint noises were mostly in the form of clicking, 4 students also had crepitus. It was concluded that there was no significant correlation between TMJ problems and malocclusion types. However, among the symptoms, a significant correlation between TMJ pain, clicking, and restricted mouth opening was found.

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