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A Study on Various Sizes and Volumes of the Palate among the Korean Population in Mixed Dentition

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ÃÖÁö¸í, ½ÅÁö¼±, Çѹ̶õ, ÀÌÁØÇà, ±èÁ¾¼ö, ±èÁ¾ºó,
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ÃÖÁö¸í ( Choi Ji-Myung ) - Dankook University College of Dentistry Department of Pediatric Dentistry
½ÅÁö¼± ( Shin Ji-Sun ) - Dankook University College of Dentistry Department of Pediatric Dentistry
Çѹ̶õ ( Han Mi-Ran ) - Dankook University College of Dentistry Department of Pediatric Dentistry
ÀÌÁØÇà ( Lee Jun-Haeng ) - Dankook University College of Dentistry Department of Pediatric Dentistry
±èÁ¾¼ö ( Kim Jong-Soo ) - Dankook University College of Dentistry Department of Pediatric Dentistry
±èÁ¾ºó ( Kim Jong-Bin ) - Dankook University College of Dentistry Department of Pediatric Dentistry

Abstract

ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº È¥ÇÕÄ¡¿­±âÀÇ °ñ°Ý¼º I, II, ¥²±Þ ºÎÁ¤±³ÇÕÀÇ ±¸°³¿ëÀû, Æø°æ, Àå°æ, °í°æÀ» ºñ±³ÇÏ´Â °ÍÀÌ´Ù. ÀÌ ¿¬±¸´Â ´Ü±¹´ëÇб³ Ä¡°ú´ëÇк´¿ø ¼Ò¾ÆÄ¡°ú¿¡ ³»¿øÇÏ¿© ±³Á¤À» ¸ñÀûÀ¸·Î ÀλóäµæÇÑ Áø´Ü¸ðÇü 1400°³ Áß 30°³¸¦ ¼±º°ÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. ¸ðÇüÀº Hellman¡¯s dental age ¥²AÀÇ °ñ°Ý¼º I, II, ¥²±Þ ºÎÁ¤±³ÇÕÀ¸·Î ±¸¼ºµÇ¾ú´Ù. 3Â÷¿ø ½ºÄ³³Ê·Î ¸ðÇüÀ» ½ºÄµÇÑ ÈÄ ¿©·¯ ±¸°³ ¼öÄ¡µéÀ» ÃøÁ¤ÇÏ¿´´Ù. SPSS¿¡¼­ Kruskal-Wallis test¸¦ ÀÌ¿ëÇÏ¿© ºñ±³ ºÐ¼®ÇÏ¿´°í, Mann-Whitney test·Î »çÈÄ°ËÁ¤ÇÏ¿´´Ù. È¥ÇÕÄ¡¿­±âÀÇ II±Þ ºÎÁ¤±³ÇÕ¿¡¼­ I±Þ, ¥²±Þ ºÎÁ¤±³ÇÕ¿¡ ºñÇØ ±¸°³Æø°æÀÌ À¯ÀÇÇÏ°Ô ÀÛ¾Ò°í, ±¸°³Àå°æÀÌ À¯ÀÇÇÏ°Ô ±æ¾ú´Ù. È¥ÇÕÄ¡¿­±âÀÇ ¥²±Þ ºÎÁ¤±³ÇÕ¿¡¼­ ±¸°³°í°æÀÌ À¯ÀÇÇÏ°Ô °¡Àå ÄÇÀ¸¸ç, ±× ´ÙÀ½À¸·Î´Â II±Þ, I±Þ ¼øÀ̾ú´Ù. ±¸°³¿ëÀûÀº ¥²±Þ, II±Þ, I±Þ ¼øÀ¸·Î ÄÇÀ¸³ª, Åë°èÀûÀ¸·Î À¯ÀÇÇÒ ¸¸ÇÑ Â÷ÀÌ´Â º¸ÀÌÁö ¾Ê¾Ò´Ù. °¢ ±³ÇÕ ¾ç½Ä¿¡ µû¸¥ ±¸°³ ÇüÅÂÀÇ Â÷À̸¦ ÀÌÇØÇÏ´Â °ÍÀº ÀÓ»óÀûÀ¸·Î ¸Å¿ì Áß¿äÇÏ´Ù. À̹ø ¿¬±¸¸¦ ¹ÙÅÁÀ¸·Î ±¸°³ÀÇ ÇüÅÂ¿Í °ñ°Ý ÆÐÅÏ°úÀÇ °ü°è¿¡ ´ëÇØ ÀÌÇØÇÏ¿´°í, ÀÌ´Â ±³Á¤ Ä¡·á °èȹ, ºÎÁ¤±³ÇÕ Á¶±â Áø´Ü ¹× ±¸°³ ÇüÅÂÀÇ ÅëÇÕ ¸ÞÄ¿´ÏÁòÀ» ÀÌÇØÇÏ´Â µ¥¿¡ À¯¿ëÇÑ Á¤º¸¸¦ Á¦°øÇÑ´Ù.

The purpose of this study was to compare the palatal dimensions (volume, width, length, and height) in different malocclusions (Class I, II, and III) in mixed dentition using a three-dimensional digital scanner. The study was performed on 30 selected casts from 1400 casts that were taken at the Department of Pediatric Dentistry at Dankook University. Casts consisted of Class I, II, and III malocclusion groups in Hellman¡¯s dental age IIIA. The mean age was 8 years and 6 months ¡¾ 11 months. Each cast was scanned by three-dimensional digital scanner, Medit T710 (Medit, Seoul, Korea), and shaped into the three-dimensional image and calculated palatal dimensions using the Plan T program (SMD solution, Seoul, Korea). The values were statistically compared and evaluated by Kruskal-Wallis followed by the Mann-Whitney test. According to our results, subjects with Class II malocclusion showed lower palatal width and longer palatal length compared to those with Class I and Class III. For palatal height, Class III malocclusion subjects in mixed dentition exhibited a larger number than Class II and Class I. Lastly, for palatal volume, compared to other malocclusions, Class III showed higher results; however, there were no significant differences. The form of the palate differs in types of malocclusions and understanding of these differences is important in clinical significance. Based on this study, the understanding of the relationship between the shape of the palate and the skeletal pattern provides useful information about orthodontic treatment plans, early diagnosis of malocclusion, and morphological integration mechanisms. Orthopedic treatment in the maxilla should be performed during early and intermediate mixed dentition to enhance treatment efficiency.

Å°¿öµå

Palatal volume; Palatal width; Palatal length; Palatal height; Malocclusion; Mixed dentition

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