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[An assessment of Helkimo index in 88 orthodontic patients before treatment]
Objective:
The prevalence of temporomandibular joint disorders(TMJDs) was studied in orthodontic patients before orthodontic treatment.
Methods:
The functional examination of the masticatory system was made with Helkimo index in 88 young patients with general malocclusion.
Results:
According to the dysfunction index, 50 percent of the patients was free of anamnestic dysfunction, and 44.32% and 5.68% of the patients had a mild and a severe anamnestic dysfunction respectively, 32.95 percent of patients was free of clinical dysfunction, and 51.14% and 14.77% of patients had a mild and a moderate clinical dysfunction respectively, only 1.14 percent of patients had a severe clinical dysfunction. The dysfunction of masticatory muscles and sounds of temporomandibular joint were most common in the signs and symptoms of TMJDs.
Conclusion:
There were no significant differences in the distribution of Ai and Di in different gender and between Angle's Class I and II malocclusion, and there was a relationship between Ai and Di.