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THE PALATAL MORPHOLOGY OF THE CHILDREN WITH CLASS ¥± DIV.1 MALOCCLUSION IN MIXED DENTITION : A STUDY USING THREE-DIMENSIONAL LASER SCANNER

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¾çÁ¤Çö, ÀÌ»óÈÆ, ÇѼ¼Çö, ±èÁ¾Ã¶,
¼Ò¼Ó »ó¼¼Á¤º¸
¾çÁ¤Çö ( Yang Jung-Hyun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÀÌ»óÈÆ ( Lee Sang-Hoon ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÇѼ¼Çö ( Hahn Se-Hyun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÁ¾Ã¶ ( Kim Chong-Chul ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº È¥ÇÕÄ¡¿­±â(Hollman dental age ¥²A)ÀÇ ¥±±Þ1·ù ºÎÁ¤±³ÇÕ°ú Á¤»ó±³ÇÕ ¾î¸°ÀÌ °£¿¡ ±¸°³¿ëÀû ¹× Àü¹æ±¸°³°æ»çÀÇ Â÷ÀÌ°¡ ÀÖ´ÂÁö ¾Ë¾Æº¸±â À§ÇÏ¿© 3Â÷¿ø ·¹ÀÌÀú ½ºÄ³³Ê¸¦ ÀÌ¿ëÇÏ¿© ºñ±³, ºÐ¼®ÇÏ´Â °ÍÀ̾ú´Ù.

´ë»óÀº ¼­¿ï´ëÇб³ Ä¡°úº´¿ø¿¡ ³»¿øÇÑ °ñ°Ý¼º ¥±±Þ1·ù ºÎÁ¤±³ÇÕ È¯ÀÚ Áß È¥ÇÕÄ¡¿­±â ¾î¸°ÀÌ 31¸í°ú ¼­¿ï½Ã Ä¡°ú ÀÇ»çȸ¿¡¼­ ÁÖ°üÇÑ 2000³âºÎÅÍ 2004³â±îÁöÀÇ °ÇÄ¡¾î¸°ÀÌ ¼±¹ß´ëȸ Èĺ¸ Áß ±³ÇÕ¾ç»óÀÌ Á¤»óÀÌ¸ç ¾È¸ð»ó Á¤»ó¹üÁÖ¿¡ ¼ÓÇÏ´Â 29¸íÀ̾úÀ¸¸ç, ±âÁØ¿¡ ÀûÇÕÇÑ 60°³ÀÇ »ó¾Ç¸ðÇüÀ» 3Â÷¿ø ·¹ÀÌÀú ½ºÄ³³Ê(Breuckmann opto-TOP HE, INUS, Korea)·Î ½ºÄµÇÑ ÈÄ Rapidform 2004 ÇÁ·Î±×·¥ (INUS, Korea)À» ÀÌ¿ëÇÏ¿© 3Â÷¿ø À̹ÌÁö¸¦ À籸¼ºÇÏ°í ±¸°³¿ëÀû°ú ½Ã»óºÐÇÒ¸é »ó¿¡¼­ÀÇ Àü¹æ±¸°³°æ»ç¸¦ ÃøÁ¤ÇÏ¿´´Ù. ¾ò¾îÁø °á°ú¸¦ 95% ½Å·Ú¼öÁØ¿¡¼­ independent samples t-test¸¦ ÀÌ¿ëÇÏ¿© Åë°èÀû À¯ÀǼºÀ» °ËÁ¤ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.

1. È¥ÇÕÄ¡¿­±âÀÇ ¥±±Þ1·ù ºÎÁ¤±³ÇÕ ¾î¸°ÀÌ´Â Á¤»ó±³ÇÕ ¾î¸°ÀÌ¿¡ ºñÇØ Æò±Õ±¸°³¿ëÀûÀÌ À¯ÀÇÇÏ°Ô ÀÛÀº °æÇâÀ» º¸¿´´Ù(p<0.05).

2. È¥ÇÕÄ¡¿­±âÀÇ ¥±±Þ1·ù ºÎÁ¤±³ÇÕ°ú Á¤»ó±³ÇÕ ¾î¸°ÀÌ »çÀÌ¿¡¼­ Àü¹æ±¸°³°æ»ç¿Í ±¸°³°í°æÀº À¯ÀǼº ÀÖ´Â Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(p>0.05).

3. È¥ÇÕÄ¡¿­±âÀÇ ¥±±Þ1·ù ºÎÁ¤±³ÇÕ ¾î¸°ÀÌ´Â Á¤»ó±³ÇÕ ¾î¸°ÀÌ¿¡ ºñÇØ ±¸°³Àå°æÀÌ À¯ÀÇÇÏ°Ô ±æ¾ú´Ù(p<0.01).

4. È¥ÇÏÄ¡¿­±âÀÇ ¥±±Þ1·ù ºÎÁ¤±³ÇÕ ¾î¸°ÀÌ´Â Á¤»ó±³ÇÕ ¾î¸°ÀÌ¿¡ ºñÇØ °ßÄ¡°£ ±¸°³Æø°æ(p<0.05)°ú ´ë±¸Ä¡°£ ±¸°³Æø°æ(p<0.01)ÀÌ À¯ÀÇÇÏ°Ô Á¼Àº °æÇâÀ» º¸¿´´Ù.

The purpose of this study was to clarify the palatal volume and anterior palatal slope of the children with class ¥± div. 1 malocclusion and normal occlusion in mixed dentition(Hellman dental age ¥²A) using three-dimensional laser scanner.

Samples were consisted of 31 children with skeletal class ¥± div.1 malocclusion in mixed dentition and 29 children with normal occlusion and profile among the contestants in 2000-2004 Healthy Dentition Contest in Seoul. Totally 60 maxillary study model were taken. Each cast was scanned by three-dimensional laser scanner (Breuckmann opto-TOP HE, INUS, Korea) and shaped into the three-dimension image by Rapidform 2004 pro¡þgram(INUS, Korea). And the palatal volume and anterior palatal slope of each cast were calculated by Rapidform 2004 program(INUS, Korea). The values were statistically compared and evaluated by independent samples t-test with 95% of significance level.

The results were as follows:

1. Palatal volume was significantly lesser in children with class ¥± div.l malocclusion than that of normal occlusion in mixed dentition(p<0.05).

2. No significant difference in the anterior palatal slope and palatal height was found between the children with class ¥± div.1 malocclusion and normal occlusion in mixed dentition(p>0.05).

3. Palatal length was significantly greater in children with class ¥± div.1 malocclusion than that of normal occlusion in mixed dentition(p<0.01).

4. Intercanine and intermolar width were significantly lesser in children with class ¥± div.1 malocclusion than those of normal occlusion in mixed dentition(respectively p<0.05 and p<0.01).

Å°¿öµå

±¸°³¿ëÀû;Àü¹æ±¸°³°æ»ç;3Â÷¿ø ·¹ÀÌÀú ½ºÄ³³Ê;È¥ÇÕÄ¡¿­±â
Palatal volume;Anterior palatal slope;Three-dimensional laser scanner;Mixed dentition

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