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A study on the smile of Korean Youth compared with twenty years ago

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¹ü½Â±Õ, Á¤ÁöÇý, ±èÅ¿µ, ÀÌ°æÀº, µ¿Áø±Ù,
¼Ò¼Ó »ó¼¼Á¤º¸
¹ü½Â±Õ ( Beom Seung-Gyun ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
Á¤ÁöÇý ( Jung Ji-Hye ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
±èÅ¿µ ( Kim Tae-Young ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
ÀÌ°æÀº ( Lee Kyung-Eun ) - ´ëÀü¼º¸ðº´¿ø Ä¡°úÇб³½Ç
µ¿Áø±Ù ( Dong Jin-Keun ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç

Abstract

¿¬±¸ ¸ñÀû: ÀϹÝÀûÀ¸·Î Ä¡¾Æ´Â ¹Ì¼Ò ÁöÀ» ¶§ °¡Àå ¸¹ÀÌ ³ëÃâµÇ¸ç, ¹Ì¼Ò ½Ã¿¡ ³ªÅ¸³ª´Â Ä¡¾Æ¿Í ¿¬Á¶Á÷°úÀÇ °ü°è µîÀº ½É¹ÌÀûÀÎ º¸Ã¶ ¼öº¹¿¡ À־ Áß¿äÇÑ ÁöħÀÌ µÈ´Ù. º» ¿¬±¸´Â 20³â Àü Çѱ¹ û³âµéÀÇ ¹Ì¼Ò¿Í ÇöÀç Çѱ¹ û³âµéÀÇ ¹Ì¼Ò¸¦ ºñ±³ÇÏ¿© ±× Â÷À̸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ½ÅüÀûÀÎ ¹ßÀ° »óÅ°¡ Á¤»óÀûÀÌ°í Àü½ÅÀû ¶Ç´Â À¯ÀüÀû ÁúȯÀÌ ¾øÀ¸¸ç, ¾È¸ð°¡ ¾çÈ£ÇÏ°í Ä¡¾ÆÀÇ °á¼ÕÀÌ ¾øÀ¸¸ç ±³Á¤ ¹× º¸Ã¶Ä¡·á¸¦ ¹ÞÀº °æÇèÀÌ ¾ø°í, ±³ÇÕ»óÅ°¡ ºñ±³Àû Á¤»óÀûÀÎ 20-29¼¼ »çÀÌÀÇ Ã»³â 100¸í(³²ÀÚ 50¸í, ¿©ÀÚ 50¸í)À» ´ë»óÀ¸·Î, Cephalometer¿¡ »ç¿ëµÇ´Â µÎºÎ °íÁ¤ ÀåÄ¡¸¦ »ç¿ëÇÏ¿© ÇÇ°ËÀÚÀÇ F-H planeÀÌ Áö¸é¿¡ ÆòÇàÇϵµ·Ï ÇÑ ÈÄ, 35 mm Ä«¸Þ¶ó(400D. Cannon, Japan), 120 mm ·»Áî ±×¸®°í »ï°¢´ë¸¦ »ç¿ëÇÏ¿© ÇÇ°ËÀÚÀÇ midsagittal plane¿¡ Ä«¸Þ¶ó ·»ÁîÀÇ Áß½ÉÀ» ¸ÂÃß°í »ó¾Ç ÁßÀýÄ¡ Àý´Ü°ú ·»Áî¿ÍÀÇ °Å¸®¸¦ 930 mm·Î ÇÏ¿© ¾ÈÁ¤À§ ¹× full smile ½ÃÀÇ ¾È¸ð Á¤¸é »çÁøÀ» 3ȸ¾¿ ÃÔ¿µÇÏ¿´´Ù. 1991³â À± µîÀÌ ÃÔ¿µÇÑ ´ëÇлý 240¸í Áß ¹«ÀÛÀ§·Î ¼±ÅÃÇÑ 100¸í(³²ÀÚ 50¸í, ¿©ÀÚ 50¸í)ÀÇ ¹Ì¼Ò»çÁø°ú ÇÔ²² °³Àοë ÄÄÇ»ÅÍ ¹× V-ceph 6.0 ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ°í HulseyÀÇ ¹Ì¼Ò °èÃø ¹æ¹ýÀ» Âü°í·Î ÇÏ¿©, »ó¼øÀÇ ÇüÅÂ, »ó¼ø°ú Ä¡¾Æ¿ÍÀÇ °ü°è, Çϼø°ú »ó¾Ç ÀüÄ¡ Àý´Ü¿¬°úÀÇ ÆòÇà °ü°è, Çϼø°ú »ó¾Ç ÀüÄ¡ Àý´Ü¿¬°úÀÇ Á¢ÃË °ü°è, ¹Ì¼Ò½Ã ³ªÅ¸³ª´Â Ä¡¾Æ µîÀ» °èÃøÇÏ°í ºÐ¼®ÇÏ¿´´Ù. ÇÑÆí Ä¡°úÀÇ»ç 10ÀÎÀÌ ³²,³à °¢ 2ȸ¾¿ ¹Ì¼Ò¿¡ ´ëÇÑ ¹ÌÀûÆò°¡¸¦ ½ÃÇàÇÏ¿© ¹Ì¼ÒÆòÁ¡À» ±â·ÏÇÏ°í ºñ±³ÇÏ¿´´Ù.

°á°ú: Áö³­ 20³â°£ Çѱ¹ û³âÀÇ ¹Ì¼Ò°¡ Å©°Ô Çâ»óµÇ¾úÀ¸¸ç ÀÌ·¯ÇÑ º¯È­´Â ÁÖ·Î »ó¼øÀÇ ÇüÅ°¡ ¿µÇâÀ» ÁØ °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. Áï ÀÔ²¿¸®°¡ À§·Î ¿Ã¶ó°¡´Â ÇüÅÂÀÇ ¹Ì¼Ò°¡ °ý¸ñÇÒ ¸¸ÇÑ Áõ°¡¸¦ º¸ÀÎ ¹Ý¸é ÀÔ ²¿¸®°¡ ¾Æ·¡·Î óÁö´Â ÇüÅÂÀÇ ¹Ì¼Ò´Â ÇöÀúÇÑ °¨¼Ò¸¦ º¸¿´´Ù.

°á·Ð: Áö³­ 20³â°£ Çѱ¹ û³âÀÇ ¹Ì¼Ò°¡ Å©°Ô Çâ»óµÇ¾ú´Âµ¥ ÀÌ·¯ÇÑ º¯È­´Â ÁÖ·Î »ó¼øÀÇ ÇüÅ°¡ ¿µÇâÀ» ÁØ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.

Purpose: Teeth are generally exposed when people smiling. Moreover, the exposed teeth and soft tissue when smiling becomes an important guideline for esthetically prosthetic restoration. This research is to compare and find out differences of Korean young men¡¯s smile living in presence and twenty years ago.

Materials and Methods: Subjects, 100 young men (50 male and 50 female), were required about several aspects; normally developed physical condition, no psychological or genetic disorders, a fine face with no loss of teeth, no experience in orthodontic or prosthetic treatment, relatively normal occlusion, aged between 20-29. The photos of the subject at rest position and front face when fully smiled were taken three times. 100 photos (50 male and 50 female) were chosen at random from the 240 university students¡¯ smile photos taken by Yoon and his colleagues in 1991. By Hulsey¡¯s method of measuring smile, several factors; the change of upper lip curvature, the change of the relation between the upper lip and teeth, parallelism between Mx. incisor and lower lip, contact relation between Mx. incisor and lower lip and teeth displayed in a smile, were measured and analyzed. Meanwhile, ten dentists assessed aesthetic evaluation about men and women¡¯s smile for twice and recorded and compared smile score. The -test (P<.05) was used to compare the measured value. The difference of smile score was analyzed by t-test (P<.05).

Results: The smile score calculated in 2011 (60.22) was higher than that of 1991 (52.80). Among five measurement categories, the noticeable difference was distinguished from two factors; the change of upper lip curvature and contact relation between Mx. incisor and lower lip.

Conclusion: The Korean young men¡¯s smile has been considerably improved for twenty years. And it is found that the change of upper lip curvature plays an important role, that is, the smile formed with an ascended labial commissure has been increased significantly.

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¹Ì¼ÒÀÇ ÇüÅÂ; ¹Ì¼Ò ÆòÁ¡; »ó¼øÀÇ ¸¸°î
Smile type; Smile score; Upper lip curvature

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KCI
KoreaMed