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A STUDY ON TMJ DISC POSIT10N BY MAPPING METHOD

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Abstract

°á·Ð
ÀÚ°¢Áõ»óÀÌ ¾ø°í ÀÓ»ó°Ë»ç»ó ¾Ç°üÀýÀå¾ÖÀÇ ¼Ò°ßÀÌ ¾ø´Â Áö¿øÀÚ 20¸íÀÌ ¾çÂÊ 40 ¾Ç°üÀý°ú
¾Ç°üÀýÀå¾Ö·Î ³»¿øÇÏ¿© ÀÓ»ó°Ë»ç»ó ¾Ç°üÀý ³»ÀåÁõÀÌ ÀǽɵǾî ÀÚ±â°ø¸í¿µ»ó»çÁøÀ» ÃÔ¿µÇÑ
50¸íÀÇ È¯ÀÚ 100¾Ç°üÀýÀ» ´ë»óÀ¸·Î ½Ã»ó¸é¿µ»óÀÇ ¿¬¼ÓµÈ »çÁø¿¡¼­ ÇϾǿÍ, ÇϾǰúµÎ, °üÀý¿ø
ÆÇÀÇ À§Ä¡¸¦ ÃøÁ¤ÇÏ°í À̸¦ Áöµµ¸¦ ÀÛ¼ºÇϵíÀÌ ÀçÁ¶ÇÕÇÏ¿© Ãà¸é(axials surface)¿¡¼­ÀÇ ÇϾÇ
°úµÎ¿Í °üÀý¿øÆÇÀÇ À§Ä¡¸¦ °üÂûÇÏ¿´´Ù. ÀçÁ¶ÇÕµÈ Ãà¸é¿¡¼­ÀÇ ÇϾǰúµÎ¸¦ ±âÁØÀ¸·Î °üÀý¿øÆÇ
ÀÇ ÀüÈÄ¹æ ³»¿ÜÃø ¹× ȸÀüÀÌ °üÂûµÇ´Â ¾ç»ó¿¡ µû¶ó ºÐ·ùÇÏ°í ÀÌ ºÐ·ù¿¡ µû¶ó¼­ Áõ¼¼°¡ ¾ø´Â
¾Ç°üÀý, ÀÌȯÃø, ºñÀÌȯÃø ¾Ç°üÀý¿¡¼­ ÇϾǰúµÎ¿¡ ´ëÇÑ °üÀý¿øÆÇÀÇ À§Ä¡°ü°è¿¡ ÀÇÇÑ ºÐÆ÷ ¾ç
»óÀ» ºñ±³ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ¾Ç°üÀýºÎÀ§ÀÇ ÀÚ±â°ø¸í¿µ»óÀÇ ½Ã»ó¸é»çÁøµéÀ» Ãà¸é¿¡¼­ À籸¼ºÇÑ °á°ú¿¡ ÀÇÇϸé ÇϾÇ
°úµÎ¿¡ ´ëÇÑ °üÀý¿øÆÇÀÇ À§Ä¡´Â 12°¡Áö ÇüÅ·Π±¸ºÐÇÒ ¼ö ÀÖ¾ú´Ù.
2. Áõ¼¼°¡ ¾ø´Â °æ¿ì¿¡ Á¤»óÀûÀÎ À§Ä¡°¡ 65.0£¥, Àü¹æº¯À§ ¾øÀÌ Ãø¹æÀ̳ª ȸÀüÀ̵¿ÀÌ ÀÖ´Â
°æ¿ì°¡ 20.0£¥, Àü¹æº¯À§°¡ 15.0£¥·Î °üÂûµÇ¾ú°í, Àü¹æº¯À§µÈ °æ¿ì¿¡¼­ 5.0£¥´Â ȸÀüÀ̵¿À»
µ¿¹ÝÇÏ°í ÀÖ¾ú´Ù.
3. ºñÀÌȯÃø¿¡¼­´Â Á¤»óÀûÀÎ °æ¿ì°¡ 41.2£¥ ȸÀüÀ̵¿ÀÌ °üÂûµÈ °æ¿ì°¡ 11.8£¥, Àü¹æº¯À§µÈ
°æ¿ì°¡ 47.0£¥·Î °üÂûµÇ¾ú´Ù.
4. ÀÌȯÃø¿¡¼­´Â Á¤»óÀûÀÎ À§Ä¡¸¦ º¸ÀÌ´Â °æ¿ì°¡ 10.6£¥, Ãø¹æÀ̳ª ȸÀüÀ̵¿À» º¸ÀÌ´Â °æ
¿ì°¡ 13.6£¥, Àü¹æº¯À§°¡ 75.8£¥·Î °üÂûµÇ¾ú´Ù.
5. ÀÌȯÃø¿¡¼­´Â Àü¹æº¯À§¿Í Ãø¹æÀ̵¿À̳ª ȸÀüÀ̵¿ÀÌ µ¿¹ÝµÈ °æ¿ì°¡ ´Ü¼øÈ÷ Àü¹æº¯À§¸¸
°üÂûµÇ´Â °æ¿ìº¸´Ù ´õ ¸¹ÀÌ °üÂûµÇ¾úÀ¸³ª, Áõ¼¼°¡ ¾ø°Å³ª ºñÀÌȯÃøÀÇ °æ¿ì¿¡´Â ´Ü¼øÈ÷ Àü¹æ
º¯À§¸¸ °üÂûµÈ °æ¿ì°¡ ȸÀüÀ̳ª Ãø¹æÀ̵¿À» µ¿¹ÝÇÑ °æ¿ìº¸´Ù ´õ ¸¹ÀÌ °üÂûµÇ¾ú´Ù.

According to the autopsy study for the temporomandibular joint disc position, rotation
and sideway displacements as well as anterior displacement of TMJ discs are important
aspect of internal derangement. There were some trials to suspect anterior and sideway
disc displacements through MR images. But the sagittal and the coronal views of MRI
could only show the image of cutted slices, these images were not sufficient for
showing the entire correlations among glenoid fossa, condylar head and articular disc. In
this study we combined the images of the each slice of sagittal views like drawing a
map, then we could see the interrelations among these three major components of TMJ
more precisely. Applying this method to both asymtomatic volunteers and TMD patients,
we classified the interrelationships between condylar head and articular disc of TMJ as
twelve types. The distributions are as follows;
1. In asymptomatic volunteers cases, normal relations were 65.0£¥, sideways or
rotational displacements without anterior displacement were 20.0£¥, only anterior
displacements were 15.0£¥, and anterior displacements combined with rotational
displacements were 5.0£¥.
2. In unaffected sides of TMD patients, normal relations were 42.1£¥, rotational
displacements were 11.8£¥ and anterior displacements were 47.0£¥.
3. In affected sides of TMD patients, normal relations were 10.6£¥, sideways or
rotational displacements were 13.6£¥, anterior displacements were 75.8£¥.
4. In asymptomatic volunteers or unaffected sides of EMD patients, pure anterior
displacement was more prominent than combined with sideways or rotational
displacement, but in affected sides of TMD patients pure anterior displacement was less
prominent.

Å°¿öµå

TMJ; Disc displacement; Mapping;

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