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A RADIOGRAPHIC STUDY OF MANDIBULAR CONDYLE SHAPE AND POSITION IN AN ASYMPTOMATIC POPULATION

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Abstract

ÀúÀÚ´Â ÃøµÎÇϾÇÀå¾ÖȯÀÚÀÇ Áø´Ü ¹× Ä¡·á¿¡ ´Ù¼Ò³ª¸¶ µµ¿òÀÌ µÇµµ·Ï ÃøµÎÇϾÇÀå¾ÖÀÇ Áõ»ó
À̳ª º´·ÂÀÌ ¾ø´Â ³²³à 73¸íÀ» ´ë»óÀ¸·Î ÇÏ¿© Ãø»çÀ§°æÅõ°³ÃÔ¿µ¹ýÀÇ ÇϳªÀÎ Accurad-200
µÎºÎ°íÁ¤ÀåÄ¡ (Dena Corp)·Î ÃøµÎÇϾǰüÀýÀ» ÃÔ¿µÇÏ¿© ¾ò¾îÁø X¼±»çÁø¿¡¼­ ÇϾǰúµÎÀÇ Çü
Ÿ¦ ºÐ·ùÇÏ°í ÇÏ¾Ç¿Í ¹× °üÀýÀ¶±â¿¡ ´ëÇÑ ÇϾǰúµÎÀÇ À§Ä¡¸¦ ÃøÁ¤, ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº
°ç°ú¸¦ ¾ò¾ú´Ù.
1. Ãø¸é¿¡¼­ °üÂûµÈ ÇϾǰúµÎÀÇ ÇüÅ´ öÇü (convex shape)ÀÌ ´ëºÎºÐÀ» Â÷ÁöÇÏ¿´À¸¸ç
(90.4%), ³ª¸ÓÁö°¡ ºÎºÐ¿äÇü (locally concave shape: 5.5%), ¼³Çü( wedge shape: 4.1%)ÀÇ ¼ø
À̾ú´Ù.
2. Á߽ɱ³ÇÕ»óÅ¿¡¼­ °üÀý±ØÀÇ Æø°æÀÇ Æò±ÕÄ¡´Â »ó¹æÀÌ 3.43§® Àü¹æÀÌ 2.17§®À̾úÀ¸¸ç, ÈÄ
¹æÀº 2.61§®À̾ú´Ù.
3. Á߽ɱ³ÇÕ»óÅ¿¡¼­ ÇϾǰúµÎ´Â ÇϾǿÍÀÇ Áß¾Ó¿¡¼­ ¾à°£ Àü¹æ¿¡ À§Ä¡ÇÏ¿´´Ù.
4. 1ÀÎÄ¡ °³±¸»óÅ¿¡¼­ ÇϾǰúµÎ´Â °üÀýÀ¶±âÀÇ Àü¹æ¿¡ À§Ä¡ÇÏ´Â °æ¿ì°¡ °¡Àå ¸¹¾ÒÀ¸¸ç
(47.3%), ±× ´ÙÀ½ÀÌ °üÀýÀ¶±âÀÇ ÈĹæ(33.5%), °üÀýÀ¶±âÀÇ Á¤Á¡ÇϹæ (19.2%)¿¡ À§Ä¡ÇÏ¿´´Ù.
#ÃÊ·Ï#
This study was designed to observe mandibular condyle shape and position in an
asymptomatic population. Using Accurad-200 head holder (Denar Corp.) for transcranial
radiography of the temporomandibular joint region, transcranial radiographs were taken
at the centric occlusion and 1 inch mouth opening in 73 males and females who were
asymptomatic for TMJ disturbances, had no severe carious or missing teeth, and no
history of presthodontic or orthodontic treatments.
Mandibular condyles were classified morphological1y at the centric occlusion and
evaluated in positional relationship with mandibular fossa and articular eminence at the
ceiltric occlusion and 1 inch mouth opening.
The results were as follows;
1. In the morphologic classification of mandibular condyle, the convex shape was more
prevalent in an asymptomatic population (90.4%), the locally cocave shape and wedge
shape were 5.5%, 4.1%.
2. At the centric occlsion, the means of joint space were 3.43nm superiorly, 2.17mm
anteriorly, and 2.61mm posteriorly.
3. At the centric occlusion, the mandibular condyles were placed slightly anterior to
the center of their fossa.
4. At the 1 inch mouth opening, the mandibular condyles were placed anterior to the
articular eminence more than posterior to or below the top of the articular eminence.

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