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Comparison of Bite Forces between Pre-and Post-Treatment in Patients with Temporomandibular Disorders

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ÀÌ»óÀÏ ( Lee Sang-Il ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç
±è±â¼® ( Kim Ki-Suk ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç

Abstract

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¿¬±¸ÀÇ °á°ú, °ßÄ¡¿¡¼­´Â Áõ»óÃø°ú ºñÁõ»óÃø ¸ðµÎ Ä¡·á Àü¿¡ ºñÇØ Ä¡·á ÈÄ ÃÖ´ë±³ÇÕ·ÂÀÌ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ º¸À̸ç Áõ°¡ÇßÀ¸¸ç,(p=0.001, p=0.000) Á¦1´ë±¸Ä¡¿¡¼­´Â Áõ»óÃø¿¡¼­¸¸ ´Ù¼Ò Áõ°¡µÈ °æÇâÀ» º¸¿©ÁÖ¾ú´Ù.(p=0.081) Ä¡·áÀüÈÄÀÇ ÃÖ´ë±³ÇÕ·ÂÀÇ º¯È­´Â °ßÄ¡¿¡¼­ ¶Ñ·ÇÇÏ°Ô ³ªÅ¸³µÀ¸³ª ÃøµÎÇϾÇÀå¾Ö¸¦ ÀÌȯ Á¶Á÷¿¡ µû¶ó ÀúÀÛ±ÙÀå¾Ö±º, °üÀý³»ÀåÁõ±º, °üÀý¿°Áõ±º ¹× °ñ°üÀý¿°±ºÀ¸·Î ³ª´©¾î ºñ±³ÇßÀ» ¶§ Áõ»óÃø ±¸Ä¡ºÎ¿¡¼­ °¢ Áø´Ü±º°£¿¡ À¯ÀÇÇÑ Â÷À̸¦ º¸¿©ÁÖ¾ú°í,(p=0.023) °ßÄ¡¿¡¼­´Â ÀϺΠ±º¿¡¼­¸¸ Â÷ÀÌ°¡ °üÂûµÇ¾ú´Ù. °ßÄ¡¿Í Á¦1´ë±¸Ä¡ ¸ðµÎ¿¡¼­ °ñ°üÀý¿°±ºÀÇ ÃÖ´ë ±³ÇÕ·ÂÀÌ ´Ù¸¥ ±º°ú ºñ±³ÇÏ¿© °¡Àå ³·¾Ò´Âµ¥, ÀÌ´Â ÅëÁõ°ú Á¤ÇüÀû ºÒ¾ÈÁ¤ÀÌ ±³ÇÕ·ÂÀÇ °¨¼Ò¸¦ À¯¹ßÇÑ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ´Ù. Ä¡·áÀüÈÄÀÇ Â÷ÀÌ´Â ÀúÀÛ±ÙÀå¾Ö±º°ú °üÀý³»ÀåÁõ±º¿¡¼­´Â Áõ»óÃø¿¡¼­ À¯ÀÇÇÏ°Ô °üÂûµÈ ¹Ý¸é, °ñ°üÀý¿°±º¿¡¼­´Â ºñÁõ»óÃø¿¡¼­ À¯ÀÇÇÏ°Ô °üÂûµÇ¾ú´Ù(p<0.05).
Áï, º» ¿¬±¸´Â ±ÙÀ° ¶Ç´Â °üÀý ±â¿øÀÇ ÅëÁõ, ±â´ÉÀÌ»ó, Á¤ÇüÀû ºÒ¾ÈÁ¤Àº ÃÖ´ë±³ÇÕ·ÂÀÇ °¨¼Ò¸¦ ¾ß±âÇϸç ÀÌ´Â º¸Á¸ÀûÀÎ Ä¡·á ÈÄ¿¡ ȸº¹µÊÀ» º¸¿©Áִµ¥, Ä¡·á ÀüÈÄÀÇ º¯È­´Â Á¦1´ë±¸Ä¡º¸´Ù °ßÄ¡¿¡¼­ ¶Ñ·ÇÇÏ°Ô ³ªÅ¸³µÀ½À» ½Ã»çÇÑ´Ù.

The purpose of this study was to compare the maximum bite forces between pre- and post-treatment related to specific diagnostic groups of TMD including masticatory muscle disorder (MMD), disc derangement (DD), joint inflammation (JI) and osteoarthritis (OA).
Bite force between pre- and post-treatment was compared in 36 patients with unilateral TMD, successfully-managed in the Department of Oral Medicine, Dankook University Dental Hospital, for this study. The ratio of men to women was 7:29 and their mean age of 28.1¡¾13.7 years. The patients were categorized, through clinical and radiographic examination, into aforementioned 4 groups; MMD (N=18), DD (N=6), JI (N=5) and OA (N=7). The maximum bite force measurements were done at the antagonizing canines and 1st molars using a bite force recorder. Paired t-test, ANOVA, Multiple Comparison t-tests were used for statistical analysis.
The results of this study showed that the maximum bite force before treatment increased after TMD treatment, which was noticeable at the canines (p=0.001 and p=0.000 for the affected and unaffected sides, respectively). In comparison related to the diagnostic groups of TMD, patients with osteoarthritis of TMJ exhibited the lowest strength while those with inflammatory disorder of TMJ had the highest strength on the affected sides. Increase of bite force after treatment was also found in each group. Significant difference between pre- and post-treatment was found at canines on the affected sides in MMD (p=0.045) and DD groups (p=0.009) while on the unaffected sides in OA group (p=0.003).
Conclusively, the reduced bite force due to TMD could be recovered by conservative TMD treatment and that the difference of bite forces between pre- and post-treatment was noticeable at the canines.

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Temporomandibular disorders;Bite force;TMD

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