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EARLY TREATMENT OF THE POSTERIOR CROSS-BITE: A CASE REPORT

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ÀÌÀº¹Ì ( Lee Eun-Mi ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
³²¼øÇö ( Nam Soon-Hyeun ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
°­µ¿±Õ ( Kang Dong-Kyun ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÅ¿Ϡ( Kim Tae-Wan ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±è¿µÁø ( Kim Young-Jin ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÇöÁ¤ ( Kim Hyun-Jung ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

±¸Ä¡ºÎ ¹Ý´ë±³ÇÕÀº À¯Ä¡¿­±â¿Í È¥ÇÕÄ¡¿­±â¿¡¼­ Á¾Á¾ ³ªÅ¸³ª´Â ºÎÁ¤±³ÇÕÀ¸·Î¼­, À¯º´À²Àº ·Î ´Ù¾çÇÏ°Ô ³ªÅ¸³­´Ù. ÀÌ´Â »ó¾Ç Ä¡¾ÆÀÇ ÇùÃø ±³µÎ°¡ ´ëÇյǴ ÇÏ¾Ç Ä¡¾ÆÀÇ ÇùÃø ±³µÎÀÇ ¼³Ãø¿¡ ±³ÇÕÇÏ´Â »óÅÂÀ̸ç, ÇϳªÀÇ Ä¡¾Æ ¶Ç´Â ÇÑ Ä¡¾Æ±º¿¡¼­ ³ªÅ¸³¯ ¼ö ÀÖ´Ù. ±¸Ä¡ºÎ ¹Ý´ë±³ÇÕÀÇ °æ¿ì, º¸Åë ÀÚ¹ßÀû ±³Á¤ÀÌ ÀÌ·ç¾îÁöÁö ¾ÊÀ¸¹Ç·Î, ¹ß°ßµÇ´Â Áï½Ã Ä¡·áÇØÁÖ´Â °ÍÀÌ ÃßõµÈ´Ù. Ä¡¼ºÀ̳ª ±â´É¼ºÀÇ °æ¿ì ¼ºÀåÇÔ¿¡ µû¶ó °ñ°Ý¼ºÀ¸·Î ÀÌÇàÇÏ¿© ¾Ç°ñÀÇ º¯ÇüÀ» ÃÊ·¡ÇÏ°í ±³Á¤ÀûÀÎ ¼ö´ÜÀ¸·Î °³¼±ÀÌ ºÒ°¡´ÉÇÑ »óÅ·Π¾ÇÈ­µÉ °¡´É¼ºµµ ÀÖÀ¸¹Ç·Î Á¶±â¿¡ Ä¡·áÇÏ´Â °ÍÀÌ È¿°úÀûÀ̸ç, ÀÌ·¯ÇÑ ¹Ý´ë±³ÇÕÀÇ Ä¡·á ¹æ¹ýÀ¸·Î´Â ÇϾÇÀÇ º¯À§¸¦ À¯¹ßÇÏ´Â Á¶±âÁ¢ÃËÀ» Á¦°ÅÇϱâ À§ÇÑ ±³ÇÕÁ¶Á¤, Çù¼ÒÇÑ »ó¾Ç±ÃÀÇ È®Àå, Ä¡¿­±Ã³» ºñ´ëĪÀ» Ä¡·áÇϱâ À§ÇÑ °³°³ Ä¡¾ÆÀÇ ¹è¿­ µîÀÇ ¹æ¹ýÀÌ ÀÖ´Ù. º» Áõ·Ê¿¡¼­´Â À¯Ä¡¿­±â¿Í Ãʱâ È¥ÇÕÄ¡¿­±â ¾Æµ¿¿¡¼­ ±¸Ä¡ºÎ ¹Ý´ë±³ÇÕÀÌ °üÂûµÇ¾î Ä¡¾ÆÀÇ ¼±ÅÃÀû »èÁ¦¿Í »ó¾Ç±ÃÀÇ È®ÀåÀ¸·Î ¹Ý´ë±³ÇÕÀ» ±³Á¤ÇÑ ÈÄ Á¤±âÀû °ËÁø½Ã ¾çÈ£ÇÑ °á°ú°¡ °üÂûµÇ±â¿¡ À̸¦ º¸°íÇÏ´Â ¹ÙÀÌ´Ù.

Posterior cross-bite is a relatively frequent malocclusion in primary and early mixed dentition and the reported prevalence of posterior cross-bite varies from 7% to 23%. It has been defined as a transverse discrepancy in arch relationship which the palatal cusp of the upper posterior teeth do not occlude in the central fossa of the opposing lower teeth, and can be manifested in a single tooth or in a group of teeth. Posterior cross-bite does not often self-correct and therefore immediate treatment is recommended. Occlusal adjustment to eliminate premature contact that causes mandibular deviation, expansion of narrow maxillary arch, arrangement of the individual teeth to treat asymmetry within the dental arch are the methods of treating cross-bite. In the present case, functional posterior cross-bite was observed in the primary and the early mixed dentition children. The children were treated by the slow maxillary expansion and occlusal adjustment. The outcome of periodic examinations after the correction of cross-bite was favorable.

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Posterior cross-bite;Early treatment;Selective grinding;Maxillary expansion

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