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British Journal of Orthodontics, Vol. 27, No. 1, 61-66, March 2000
© 2000 British Orthodontic Society

Scientific Section

Prevalence of Signs and Symptoms of Temporomandibular Disorders in Young Nigerian Adults

O. D. Otuyemi, B.D.S., M.P.H., M.SC., D. ORTH. R.C.S. (EDIN.), F.W.A.C.S., F. J. Owotade, B.CH.D., F.W.A.C.S., V. I. Ugboko, B.SC., B.CH.D., F.M.C.D.S., K. C. Ndukwe, B.SC., B.CH.D., F.M.C.D.S. and O.A. Olusile, B.D.S., M.SC.

Faculty of Dentistry, College of Health Sciences, Obafemi Awolowo University Ile-Ife, Nigeria

Dr. O. D. Otuyemi, Faculty of Dentistry, College of Health Sciences, Obafemi Awolowo University Ile-Ife, Nigeria.

Abstract

The objective of this study was to determine the prevalence of signs and symptoms of TMD in young Nigerian adults and to establish a baseline for comparison with other studies. It consisted of a cross-sectional study at Obafemi Awolowo University, Ile-Ife, Nigeria in 1997. The subjects consisted of 308 medical and dental students (207 males and 101 females) randomly selected from a Nigerian University. Their ages ranged from 17 to 32 years with a mean age of 23 ± 3•0 years. They were assessed according to the criteria of Helkimo (1974).

Whilst 26•3 per cent of the subjects reported mild symptoms (Ai I) of TMD, only 2•9 per cent reported severe symptoms (Ai II). Similarly, 46 per cent showed mild dysfunction signs (Di I), whilst 16•5 and 0•3 per cent exhibited moderate (Di II) and severe (Di III) signs of TMD, respectively. No significant relationships were found between sex, anamnestic index, and the clinical dysfunction index scores. However, there were low but significant correlations between ananmestic index scores (Ai) and the recorded signs (Di), as well as the clinical dysfunction scores (CDS).

There is some evidence to show that signs and symptoms of TMD occur amongst Nigerians, although restricted lateral and protrusive mandibular movements contributed significantly to clinical dysfunction scores. This report contrasts with what is found in western societies regarding the low prevalence of TMJ pain.

Refereed Scientific Paper

Key words: Helkimo Index, Prevalence, Signs, Symptoms, Temporomandibular Joint Disorders






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