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Bite Force, Occlusal Contact Area and Occlusal Pressure of Patients with Temporomandibular Joint Internal Derangement

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Abstract

ÃøµÎÇϾǰüÀý ³»ÀåÁõ, ±× Áß¿¡¼­µµ Á¤º¹¼º °üÀý¿øÆÇ º¯À§(Disc displacement with reduction; DDwR)´Â °¡Àå ÈçÇÏ°Ô ¹ß»ýÇÏ´Â ÃøµÎÇϾǰüÀý ÁúȯÀ¸·Î, ÀúÀÛ ´É·Â¿¡ ´Ù¾çÇÑ ¿µÇâÀ» ¹ÌÄ¥ °ÍÀ¸·Î »ý°¢µÇ¾îÁ® ¿Ô´Ù. ÀúÀÛ ´É·ÂÀ» Æò°¡ÇÏ´Â °´°üÀûÀÌ°í °¡½ÃÀûÀÎ ¼ö´ÜÀ¸·Î ÃÖ´ë ±³ÇÕ·ÂÀÇ ÃøÁ¤ÀÌ ³Î¸® Åë¿ëµÇ¾îÁ® ¿Ô´Âµ¥, °ú°Å ¸¹Àº ¿¬±¸ÀÚµéÀÌ ÃøµÎÇϾÇÀå¾Ö(TMD)¿Í ±³ÇÕ·ÂÀÇ °ü°è¿¡ ´ëÇÑ ¿¬±¸¸¦ ½ÃµµÇÏ¿´À¸³ª, ÇÇÇèÀÚÀÇ °³ÀÎÀû Ư¼ºÀ̳ª ÃøÁ¤ ¹æ¹ýÀÇ Â÷ÀÌ µîÀ¸·Î ÀÎÇÏ¿© ÅëÀϼº ÀÖ´Â °á°ú¸¦ ¾òÁö ¸øÇÏ°í ÀÖÀ¸¸ç, ÃøµÎÇϾÇÀå¾Ö·Î ÀÎÇÑ ÅëÁõÀÌ ±³ÇÕ·Â ¹× ÀúÀÛ´É·ÂÀ» °¨¼Ò½ÃŲ´Ù°í º¸°íµÈ ¹Ù ÀÖÀ¸³ª ÃøµÎÇϾǰüÀýÀÇ ±¸Á¶Àû º¯È­¿Í ÀúÀÛ´É·ÂÀÇ °ü°è¿¡ ´ëÇÑ ¿¬±¸´Â ¾ÆÁ÷ ÃæºÐÈ÷ ÀÌ·ç¾îÁ® ÀÖÁö ¾Ê´Ù. º» ¿¬±¸¿¡¼­´Â ÃøµÎÇϾǰüÀýÀÇ ±¸Á¶Àû º¯È­¿Í ÀúÀÛ ´É·ÂÀÇ °ü°è¸¦ ÆľÇÇØ º¸°íÀÚ °³±¸½Ã ¹«Å뼺ÀÇ °üÀýÀ½À» º¸À̴ ȯÀÚ 39¸í ¹× ´ëÁ¶±º 59¸íÀ» ´ë»óÀ¸·Î ÃÖ´ë ±³ÇÕ·Â, ±³ÇÕ Á¢ÃË ¸éÀû ¹× ±³ÇÕ¾ÐÀ» °¨¾ÐÇʸ§¹ý(pressure sensitivie film)À» ÀÌ¿ëÇÏ¿© ºÐ¼®, Æò°¡ÇÑ ÈÄ ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. Á¤º¹¼º °üÀý¿øÆÇ º¯À§ ȯÀÚ±ºÀÌ ´ëÁ¶±ºº¸´Ù ³ôÀº ÃÖ´ë ±³ÇÕ·Â(P £¼ 0.01) ¹× ³ÐÀº ±³ÇÕ Á¢ÃË ¸éÀû(P £¼ 0.05)À» ³ªÅ¸³»¾ú´Ù.
2. ´ÜÀ§ ¸éÀû´ç Æò±Õ ±³ÇÕ¾ÐÀº ´ëÁ¶±º°ú Á¤º¹¼º °üÀý¿øÆÇ º¯À§ ȯÀÚ±º °£¿¡ À־ À¯ÀǼºÀÖ´Â Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(P £¾ 0.05).
3. ³²³à°£ÀÇ Â÷ÀÌ¿¡ À־, Á¤º¹¼º °üÀý¿øÆÇ È¯ÀÚ±º°ú ´ëÁ¶±º ¸ðµÎ¿¡¼­ ³²¼ºÀÌ ¿©¼ºº¸´Ù ³ôÀº ±³ÇÕ¾ÐÀ» ³ªÅ¸³»¾úÀ¸³ª(P £¼ 0.05), Æò±Õ ±³Çվаú ±³ÇÕ Á¢ÃË ¸éÀûÀº À¯ÀǼºÀÖ´Â Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(P £¾ 0.05).
ÀÌ»óÀÇ °á°ú·ÎºÎÅÍ ¾òÀ» ¼ö ÀÖ´Â °á·ÐÀº ÃøµÎÇϾǰüÀýÀÇ Á¤º¹¼º °üÀý¿øÆÇ º¯À§°¡ ±³ÇÕ ±â´ÉÀ» º¯È­½ÃÅ°´Â ÇÑ ¿ä¼Ò·Î¼­ ÀÛ¿ëÇÒ ¼ö ÀÖ´Ù´Â Á¡ÀÌ´Ù. ÇâÈÄÀÇ ¿¬±¸¿¡ À־ ±ÙÀüµµ µîÀ» ÀÌ¿ëÇÑ ÀúÀÛ±Ù È°¼ºµµ ÃøÁ¤À» º´ÇàÇÔÀÌ À¯¿ëÇÒ °ÍÀ¸·Î »ç·áµÇ¸ç, ±³Çշ¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ´Ù¸¥ ¿ä¼Ò°¡ ÅëÁ¦µÈ º¸´Ù ´ë±Ô¸ð ȯÀÚÁý´Ü¿¡ ´ëÇÑ ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.

Temporomandibular joint (TMJ) internal derangement, especially disc displacement with reduction (DDwR) is the most common TMJ arthropathy and has been thought to do some effects on masticatory performance. Measuring of maximal bite force has been widely used as objective and quantitative method of evaluating masticatory performance, but previous studies showed various results due to various characteristics of subjects and different measuring devices and techniques. In a few studies about the correlation of bite force and temporomandibular disorders (TMD), some authors reported that bite force and masticatory performance would be reduced in patients with TMD because of pain. But the correlation of changes in structure of articular disc and masticatory performance has not been well investigated yet. In this study, to investigate the influences of non-painful disc change on the masticatory performance, we measured the value of maximal bite force, occlusal contact area and occlusal pressure of 39 patients with non-painful DDwR of the TMJ using pressure sensitive film, and compared it with that of 59 controls. The results are summarized as follows:
1. The maximal bite force (P £¼ 0.01) and the occlusal contact area (P £¼ 0.05) of the DDwR patients were greater than the controls.
2. There was no significant difference in occlusal pressure between the DDwR patients and the controls (P £¾ 0.05).
3. The maximal bite force of the male group was greater than that of the female group (P £¼ 0.05). However, the occlusal contact area and the occlusal pressure between the male and the female group didn¡¯t show significant difference (P £¾ 0.05).
From the results above, we can suggest that DDwR could be a factor of changing bite force, but more controlled, large scaled and EMG related further study is needed.

Å°¿öµå

Bite force;Occlusal contact area;Occlusal pressure;Pressure sensitive film;Disc displacement with reduction;±³ÇÕ·Â;±³ÇÕ Á¢ÃË ¸éÀû;±³ÇÕ¾Ð;°¨¾ÐÇʸ§;Á¤º¹¼º °üÀý¿øÆÇ º¯À§

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