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A RADIOGRAPHIC STUDY ON THE POSITIONAL RELATIONSHIP OF THE MANDIBLE TO THE HINGE AXIS

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Abstract

ïáßÈìÑ¿¡ À־ ù»äÉÍéÀÇ êÈöÇμÌõ ¹× ܨêȸ¦ ͪö´ÇÏ°í Ù¼úþß¾¿¡¼­ ÎáùêÀ» ÝÂà°ÇÏ¿© äÉ
μï½Ñ¦Òö ×äßÈãÁ çãß̵Ǵ μï½Ò® î¡úª·Î ì×ÇØ ôýÒ­µÉ ¼ö ÀÖ´Â ïïÓø¸¦ øÄʤÇϱâ êÓÇØ, ðÈàØ
ÓÞùÊÎè öÍΡÓÞùÊ¿¡ î¤ùÊñéÀÎ ùÊßæÀ¸·Î ïáßÈÎáùêÀ» Áö´Ï°í öÍä³ÌÀáßÀÌ ¾øÀ¸¸ç, ÎÆÛôêÌÇÑ ÜÁ
ðí ¹× ÜÍôÎö½Öû¸¦ ¹ÞÁö ¾ÊÀº íº·Î½á äÉÎ¼ï½ Ý»êÈ¿¡ òðü´À̳ª äÉѦÒöî¡úª°¡ ¾ø´Â ÓßßÚÀ¸·Î
Ñûí­ 53:9, åüí­ 51Ù£À» àÔ÷ÉÇÏ¿© Cephalometric Postero-Anterior view ¹× Ù¼úþÀ» ì¦éÄÇÏ¿©
ïÛßÛìÑ¿¡ À־ ÞªÓßöàÀÇ åÖÀ» ͪö´ ÝÂà°ÇÑ Ì¿Íý, ´ÙÀ½°ú °°Àº Ì¿ÖåÀ» ¾ò¾ú´Ù.
1. Cephalometric P A view ¹× Ù¼úþß¾¿¡¼­ ͪö´ÀÇ Ì¿Íý ñ§éÓö°ÀÇ ÞªÓßöàåÆÀº á´ÊàÀÇ ó¬
춴 ÀÖ¾úÀ¸³ª Ú°á¬ÇÏ¿´À¸¸ç ÐñÇÏÁö´Â ¾Ê¾Ò´Ù.
2. ïÊÛãõî°ú General TubercleÀ» ÀÌÀº ¼±ÀÇ ñ§éÓö° ͪö´ö·´Â Ñûí­¿¡¼­ ñ§ö°ÀÇ øÁгËå×î´Â
127.20¡¾6.06§®ÀÌ°í, ñ§ö°ÀÇ øÁгËå×î°¡ 119.32¡¾5.807§®ÀÌ°í, ñ§ö°Àº 118.2¡¾5.35§®À̾ú´Ù.
ïÊÛãõî°ú General TubercleÀÌ ÀÖ´Â àÊÀÌ·ç´Â øÁгÊÇÓø´Â Ñûí­¿¡¼­ ñ§ö°ÀÌ 48.48¡¾3.53¡ÆÀÌ
°í, ñ§ö°ÀÇ øÁгÊÇÓø´Â 49.58¡¾3.72¡Æ¿´À¸¸ç åüí­¿¡¼­´Â ñ§ö°ÀÇ øÁгÊÇÓø°¡ 48.06¡¾2.15ÀÌ°í,
éÓö°ÀÇ øÁгÊÇÓø´Â 48.17¡¾2.31¡ÆÀ̾ú´Ù.
3. Ù¼úþß¾¿¡¼­ X-bar¿¡ ÓßÇÑ ñ§¡¤éÓö° ̳öÍ¿Í ð¯1ÓÞÏ¿öÍÀÇ ó¬×ä´Â Ñûí­¿¡¼­ 0.70¡¾0.59§®,
0.98¡¾0.75§®¿´À¸¸ç, åüí­¿¡¼­´Â 0.64¡¾0.52§®, 0.92¡¾0 76§®À̾ú´Ù.
#ÃÊ·Ï#
This study was made to analyze the positional relationship of mandible to hinge axis
in normal subject as the diagnostic criteria of T.M.J. dysfunction. The author has
conducted the study using the Cephalometric P-A view, and dental of 53 males and 51
females. By measurement, the standard value of cranio-facial and occlusal asymmetry in
normal subject obtained.
The following results were obtained :
1. Although the degree of the difference between right and left width in each
measured line was small, asymmetry in normal subject could be identified.
2. In male, measurement between genial tubercle and hinge axis is 127.20¡¾6.06§® in
left 125.83¡¾6.25§® in right, and angle between genial tubercle and hinge axis is 48.48¡¾
3.53¡Æ in left, 49.58¡¾3.72¡Æ in right.
In female, measurement is 119.32¡¾5.81§® in left, 118.82¡¾5.35§® in right and angle is
48.06¡¾2.15¡Æ in left, 48.17¡¾2.31¡Æ in left, 48.17¡¾2.31¡Æ to in right.
3. In male, difference between left and right canine cusp tip of maxilla about X-bar is
0.70¡¾0.59§®, and that of central pit of first molar of maxilla is 0.98¡¾0.75§®.
In female, difference is 0.64¡¾0,52§® in canine and 0.92¡¾0.76§® in molar

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