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  • Title: [An assessment of Helkimo index in 88 orthodontic patients before treatment].
    Author: Chen D, Meng M, Guo J, Ai X.
    Journal: Hua Xi Kou Qiang Yi Xue Za Zhi; 1999 Aug; 17(3):248-50. PubMed ID: 12539297.
    Abstract:
    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.
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