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Outer Canthus Indicator¸¦ ÀÌ¿ëÇÑ µÎºÎ ÀÚ¼¼ ±â·Ï¹ýÀÇ ÀçÇö¼º

Reproducibility and reliability of head posture obtained by the outer canthus indicator

Korean Journal of Orthodontics 2010³â 40±Ç 2È£ p.77 ~ 86
±è¿µÀç, ¼Õº´È­, À̱âÁØ,
¼Ò¼Ó »ó¼¼Á¤º¸
±è¿µÀç ( Kim Young-Jae ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
¼Õº´È­ ( Son Byung-Hwa ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
À̱âÁØ ( Lee Kee-Joon ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç

Abstract

µÎºÎ¹æ»ç¼± »çÁø äµæ ½Ã ¹ß»ý°¡´ÉÇÑ µÎºÎÀÇ ¼öÁ÷ȸÀüÀº °èÃøÁ¡ ¼±Á¤ ¹× °èÃøÄ¡ÀÇ ÀçÇö¼º¿¡ ¿µÇâÀ» ÁÙ ¼ö ÀÖÀ¸¹Ç·Î Áø´ÜÀÚ·áÀÇ °´°üÈ­ ¹× ÁßøÀÇ ¿ëÀ̼ºÀ» À§ÇØ µÎºÎ ȸÀüÀ» ÃÖ¼ÒÈ­ÇØ¾ß ÇÑ´Ù. º» ¿¬±¸¿¡¼­´Â ¿¬Á¶Á÷ °èÃøÁ¡ÀÎ ¿Ü¾È°¢(outer canthus)À» ÁöÇ¥·Î µÎºÎ ÀÚ¼¼¸¦ ±â·ÏÇÏ°í ÀçÇöÇÏ´Â ¹æ¹ýÀÇ ½Å·Úµµ¸¦ Æò°¡ÇÏ°íÀÚ ÇÏ¿´´Ù. Á¤»ó ¾È¸ðÀÇ ¼ºÀÎ ³²³à 21¸í¿¡¼­ µÎºÎ°íÁ¤±â¿¡ ºÎÂøÇÑ Outer Canthus Indicator (OCI)¸¦ ÀÌ¿ëÇÏ¿© º®¸éÀÀ½Ã¸¦ ÅëÇÑ µÎºÎÀÚ¼¼¿¡¼­ÀÇ ¿Ü¾È°¢ÀÇ À§Ä¡¸¦ °èÃøÇÏ¿´´Ù. ÃÊÁø ½Ã µÎºÎÀÚ¼¼¿¡¼­ Ãø¸ð ±¤ÇÐ »çÁøÀ» ÃÔ¿µÇÏ°í ÀÌƲ ÈÄ °°Àº °èÃøÄ¡·Î µÎºÎÀÚ¼¼¸¦ ÀçÇöÇÏ¿© ¾òÀº µÎ ÀåÀÇ »çÁøÀ» ÁßøÇÏ¿© µÎºÎÀÇ ¼öÁ÷ ȸÀü°ú ¿ÜÀ̵µÀÇ º¯À§¸¦ ÃøÁ¤ÇÏ¿´´Ù. µÎ ¸íÀÇ ¼úÀÚ°¡ µ¿ÀÏ °úÁ¤À» ¹Ýº¹ÇßÀ» ¶§ µÎºÎÀÇ ¼öÁ÷ ȸÀüÀº °¢°¢ Æò±Õ 0.69 ¡¾ 0.43o, 0.98 ¡¾ 0.65o, Ç¥ÁØ¿ÀÂ÷ 0.09, 0.14·Î ³ªÅ¸³µ´Ù. ¿ÜÀ̵µÀÇ ¼öÆòº¯À§´Â °¢°¢ Æò±Õ 0.90 ¡¾ 0.72 mm, 0.72 ¡¾ 0.55 mm, Ç¥ÁØ¿ÀÂ÷ 0.16, 0.12ÀÌ°í ¿ÜÀ̵µÀÇ ¼öÁ÷º¯À§´Â Æò±Õ 0.81 ¡¾ 0.68 mm, 1.17 ¡¾ 0.67 mm, Ç¥ÁØ¿ÀÂ÷ 0.15, 0.15À̾ú´Ù. ¼úÀÚ°£ ½Å·Úµµ¸¦ Æò°¡Çϱâ À§ÇÑ paired t-test¿¡¼­ º¯¼öµé°£ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ¹ß°ßµÇÁö ¾Ê¾Ò´Ù. Pearson »ó°üºÐ¼®¿¡¼­ ¿ÜÀ̵µÀÇ ¼öÆò º¯À§¿Í ¼öÁ÷ º¯À§ »çÀÌ¿¡ Åë°èÀûÀ¸·Î À¯ÀǼº ÀÖ´Â »ó°ü°ü°è´Â ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ÀÌ»óÀÇ °á°ú¿¡ µû¶ó OCI°¡ µÎºÎÀÇ ¼öÁ÷ ȸÀü¿¡ ÀÇÇÑ ¿ÀÂ÷¸¦ ÁÙÀÓÀ¸·Î½á ±Ô°ÝÈ­µÇ°í »óÈ£ Áßø °¡´ÉÇÑ ¹æ»ç¼± »çÁø ¹× ±¤ÇÐ »çÁø ÀڷḦ äµæÇÏ´Â µ¥ µµ¿òÀ» ÁÙ °ÍÀ¸·Î »ç·áµÈ´Ù. (´ëÄ¡±³Á¤Áö 2010;40(2):77-86)

Objective: The purposes of this study were to evaluate the reproducibility and reliability of head posture obtained by registering outer canthus as a soft tissue landmark with the Outer Canthus Indicator (OCI).

Methods: Twenty-one adults with normal facial morphology were enrolled in this study (mean age 27.5 ¡¾ 1.72 years). To register initial head posture, height of the outer canthus from the ear rod plane was measured using OCI. Head posture was reproduced by moving the head upwards and downwards until the outer canthus was in a straight line with the indicator set at a registered height. After the head posture is reproduced by two operators after two days, lateral photographs were taken. Computerized photometric analyses of the photographs were performed.

Results: The head rotations around the transverse axis were 0.69 ¡¾ 0.43¡Æ, 0.98 ¡¾ 0.65¡Æ from each of the two operators. Standard errors were 0.09¡Æ and 0.14¡Æ each, which were similar to results from past research findings. There were no significant differences between the data from the two operators (p > 0.05). There were no correlations between the head rotation around the horizontal and vertical axes (p > 0.05).

Conclusions: The present study suggests that OCI-registered head posture may minimize errors from vertical head rotation in cephalometry and photometry.

Å°¿öµå

µÎºÎ ÀÚ¼¼;¿Ü¾È°¢;Outer Canthus Indicator;±¤ÇÐ »çÁø
Head posture;Outer canthus;Outer Canthus Indicator;Photograph

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