Volume 15, Issue 4 (9 2002)                   jdm 2002, 15(4): 13-18 | Back to browse issues page

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Eslamian L. The effect of premolar extraction on temporomandibular joint disorders. jdm. 2002; 15 (4) :13-18
URL: http://jdm.tums.ac.ir/article-1-433-en.html
Abstract:   (9909 Views)
According to researches, premolar extraction and anterior teeth retraction result in temporomandibular joint disorder due to posterior position of mandible. The aim of this study was to evaluate the effect of premolar extraction on TMJ disorder. In this interventiond study, 4 groups (10 patients for each group) were treated.They were classified as 1- non extraction, 2- extraction of two upper first premolars, 3- extraction of four first premolars, 4- combined extraction groups. Helkimo scores were evaluated before treatment, after treatment, one and two years after treatment. The results were analyzed with ANOVA and paired t-test. At the end of the treatment and two years after treatment in comparison with before treatment, Helkimo score had Significant differentce in all groups (PO.001). In the second year after debanding in comparison with the first year after debanding, no significant differences were seen in each group. No significant difference was seen between the four groups in the final appraisal of TMD. It seems that extraction had no adverse effect on TMD.
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Type of Study: Research | Subject: general
Published: 2013/08/4

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