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Size and forms of the mandibular dental arch in Korean malocclusion patients

Korean Journal of Orthodontics 2005³â 35±Ç 1È£ p.15 ~ 22
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Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº Çѱ¹ÀÎ ºÎÁ¤±³ÇÕÀÚ¿¡¼­ ÇÏ¾Ç Ä¡¿­±Ã°£ÀÇ ÇüÅÂÀû Â÷À̸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù. ¥°±Þ 114¸í. ¥±±Þ 119¸í, ¥²±Þ 135¸íÀÇ ºÎÁ¤±³ÇÕÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¾Ç ¸ðÇüÀÇ ±³ÇÕ¸éÀ» º¹»çÇÑ ÈÄ 13°³ÀÇ Á¢ÃËÁ¡ Áß¿¡¼­ °¡Àå ÇùÃø¸éÀ¸·Î À§Ä¡ÇÑ ºÎºÐÀ» digitize ÇÏ¿´°í °¢ Ä¡¾ÆÀÇ ºê¶óÄÏ À§Ä¡¿¡ ÇØ´çÇÏ´Â Á¡À» ÇϾÇÄ¡¾ÆÀÇ µÎ²²¿¡ ÀÇ°ÅÇÏ¿© 4°³ÀÇ ¼±°èÃø°ú 2°³ÀÇ ºñÀ²À» ÃøÁ¤ÇÏ¿´´Ù.
Ä¡¿­±ÃÀÇ ÇüÅ´ square ovoid, taperedÇüÀ¸·Î ºÐ·ùÇÏ¿© ±× ºóµµ¸¦ Á¶»çÇÑ °á°ú Angle ºÐ·ù¿Í ³²³à ¼ºº°¿¡ µû¸¥ Ưº°ÇÑ Ä¡¿­±Ã ÇüÅ°¡ Á¸ÀçÇÏÁö ¾Ê¾ÒÀ¸³ª, ƯÁ¤ Ä¡¿­±Ã ÇüÅÂÀÇ ºóµµ´Â Angle ºÐ·ù¿¡ µû¶ó ´Ù¸£°Ô ³ªÅ¸³µ´Ù. Ä¡¿­±Ã Å©±âÀÇ °èÃøÇ׸ñ¿¡¼­´Â ´ë±¸Ä¡°£ Æø°æ¿¡¼­¸¸ ³²³à ¼ºº° Â÷À̸¦ º¸¿´À¸¸ç, Ä¡¿­±Ã Å©±â¿¡ À־ ¥°±Þ°ú ¥²±Þ, ¥±±Þ ºÎÁ¤±³ÇÕ±º°£¿¡´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù. Ä¡¿­±Ã ÇüÅÂÀÇ ºÐÆ÷´Â ¥°±Þ°ú ¥²±Þ ºÎÁ¤±³ÇÕ±º¿¡¼­´Â square, ovoid, tapered ÇüÅ ¼øÀ̾ú°í, ¥±±Þ ºÎÁ¤±³ÇÕ±ºÀº square, tapered ovoid ÇüÅ ¼øÀ̾ú´Ù. Ä¡¿­±Ã ÇüÅÂÀÇ ºóµµºÐÆ÷¿¡ À־´Â ³²³à°£ÀÇ Â÷ÀÌ´Â ¾ø¾ú´Ù.

The purpose of this study was to clarify morphological differences among mandibular dental arch forms in Korean malocclusion patients. The sample in this study consisted of 114 Class ¥°, 119 Class ¥±, and 135 Class ¥² malocclusion cases. The most facial portions of 13 proximal contact areas were digitized from photocopied images of the mandibular dental arches. Clinical bracket points were calculated for each tooth based on the data of the mandibular tooth thickness. Four linear and two proportional measurements were undertaken. The dental arches were classified into square, ovoid, and tapered forms to compare the frequency distributions. Our results suggested that there was no single arch form specific to any particular Angle classification or sex. It appeared to be the frequency of a particular arch form that varies among the Angle classifications. In comparison of arch measure between male and female, there was no statistical difference except in the intermolar width. In comparison of arch size measurements among the different Angle classifications, there were statistically significant differences between Class ¥° and Class ¥² malocclusion groups and between Class ¥± and Class ¥² malocclusion groups. In comparison of frequency distribution of arch forms in Class ¥° and ¥² malocclusion groups, the square form demonstrated the highest distribution followed by the ovoid and tapered forms in that order. In the Class ¥± malocclusion group, the square form showed the highest distribution, followed by the tapered and ovoid forms in that order. There was no statistical difference in the frequency distribution of arch forms between male and female groups.

Å°¿öµå

ºÎÁ¤±³ÇÕ;È£¼±;Ä¡¿­±Ã ÇüÅÂ;Malocclusion;Dental arch form;Angle classification

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SCI(E)
KCI
KoreaMed