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Three Dimensional Skeletal, Dentoalveolar and Airway Space Changes after Slow Maxillary Expansion in Children

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±è³ª¿î, ÀÌ´ë¿ì, ±èÀç°ï, ¾ç¿¬¹Ì,
¼Ò¼Ó »ó¼¼Á¤º¸
±è³ª¿î ( Kim Na-Woon ) - 
ÀÌ´ë¿ì ( Lee Dae-Woo ) - 
±èÀç°ï ( Kim Jae-Gon ) - 
¾ç¿¬¹Ì ( Yang Yeon-Mi ) - 

Abstract

ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº »ó¾Ç È®Àå ¼Óµµ¿¡ µû¸¥ Ä¡¾ÆÄ¡Á¶¼º, °ñ°Ý¼º È¿°ú ¹× »ó±âµµ¿¡ ´ëÇÑ È¿°ú¸¦ CBCT¸¦ ÅëÇØ 3Â÷¿øÀûÀ¸·Î ºÐ¼®ÇÏ¿© Àú¼Ó »ó¾Ç È®ÀåÀÇ È¿°ú¸¦ È®ÀÎÇÏ´Â °ÍÀÌ´Ù. ÀüºÏ´ëÇб³ ¼Ò¾ÆÄ¡°ú¿¡¼­ Banded hyrax¸¦ ÀÌ¿ëÇÏ¿© »ó¾Ç È®ÀåÀ» ½ÃÇàÇÑ 23¸í(Æò±Õ 8.93 ¡¾ 1.61¼¼)ÀÇ È¯ÀÚ°¡ Æ÷ÇԵǾú´Ù. È®Àå ¼Óµµ¿¡ µû¶ó Àú¼Ó »ó¾Ç È®À屺°ú ±Þ¼Ó »ó¾Ç È®À屺À¸·Î ºÐ·ùµÇ¾ú´Ù. Ä¡·á ÀüÈÄÀÇ Ä¡¾ÆÄ¡Á¶¼º, °ñ°Ý¼º, ±âµµ ºÎÇÇ º¯È­¸¦ Æò°¡Çϱâ À§ÇØ Ä¡·áÀü(T0)°ú Ä¡·á Á¾·á ¹× À¯Áö ÈÄ(T1)¿¡ ÃÔ¿µÇÑ CBCT¸¦ »ç¿ëÇÏ¿´´Ù. »ó¾Ç È®Àå °á°ú µÎ ±º¸ðµÎ¿¡¼­ Ä¡¾ÆÄ¡Á¶¼º, °ñ°Ý¼º ÃøÁ¤ °ª ¹× »ó±âµµ ºÎÇÇÀÇ À¯ÀÇÇÑ Áõ°¡°¡ °üÂûµÇ¾ú´Ù. ¶ÇÇѸðµç ÃøÁ¤ °ª¿¡¼­ Àú¼Ó »ó¾Ç È®Àå°ú ±Þ¼Ó »ó¾Ç È®Àå °£ÀÇ À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. ÀÌ¿¬±¸´Â È¥ÇÕÄ¡¿­±â ¾î¸°ÀÌ¿¡¼­ Àú¼Ó »ó¾Ç È®ÀåÀÇ È¿°ú¿¡ ´ëÇØ È®ÀÎÇÏ¿´´Ù. Àú¼Ó »ó¾Ç È®ÀåÀº Ä¡¾ÆÄ¡Á¶¼º, °ñ°Ý¼º ÃøÁ¤ °ª »Ó¸¸ ¾Æ´Ï¶ó ±âµµ ºÎÇÇ, »ó¾Çµ¿ ±âü ºÎÇÇ¿¡¼­µµ À¯ÀÇÇÑ È¿°ú¸¦ º¸¿´´Ù. ¶ÇÇÑ, ±Þ¼Ó »ó¾Ç È®ÀåÀÇ È¿°ú¿Í ºñ±³ÇÏ¿´À» ¶§ À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù.
µû¶ó¼­ ¼Ò¾ÆÄ¡°úÀÇ»ç´Â ¼ºÀå±â ¾î¸°ÀÌÀÇ Ä¡ÁÖ Á¶Á÷ÀÇ »ý¸®Àû Ãø¸é, ºÒÆí°¨¿¡ µû¸¥ ÇùÁ¶µµµîÀ» °í·ÁÇÏ¿© ±Þ¼Ó »ó¾Ç È®Àå°ú Àú¼Ó »ó¾Ç È®Àå Áß ÀûÀýÇÑ ¹æ¹ýÀ» ¼±ÅÃÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù.

The aim of this study was to investigate the effects of slow maxillary expansion (SME) on the dentoalveolar, skeletal, upper airway, and maxillary sinus using cone-beam computed tomography (CBCT). Twenty-three orthodontic patients (mean age 8.93 ¡¾ 1.61 years) who were treated with maxillary expansion using banded hyrax in the Department of Pediatric Dentistry at Jeonbuk National University Dental Hospital were included. According to the expansion speed applied, they were divided into two groups: SME (12 subjects, mean age 8.92 ¡¾ 1.45 years) and rapid maxillary expansion (RME, 11 subjects, mean age 8.94 ¡¾ 1.84 years). CBCT were obtained before (T0) and after (T1) the treatment and were analyzed with InVivo5 software (Anatomage, San Jose, CA, USA). Descriptive statistics showed no significant differences between the two groups in age, sex, or skeletal maturity. There were significant increases in maxillary width at the dentoalveolar and skeletal levels for both groups. Upper airway volume revealed a significant increase of 38.59% in the SME group and 28.72% in the RME group. However, there was no significant difference between SME group and RME group in all measurements. This study suggested the efficacy of SME in growing patients. SME was effective in increasing not only dentoalveolar and skeletal measurements but also airway volume. Therefore, pediatric dentists should select an appropriate expansion method considering the physiological aspects of periodontal tissues and discomfort in growing children.

Å°¿öµå

Slow maxillary expansion; Rapid maxillary expansion; Banded hyrax; CBCT; Upper airway volume

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