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Lateral Cephalometric Measurements of Class I Malocclusion Patients with Uncertainty

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ÀÌÁö¹Î ( Lee Ji-Min ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
¼ÛÁö¼ö ( Song Ji-Soo ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
ÇöÈ«±Ù ( Hyun Hong-Keun ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
±è¿µÀç ( Kim Young-Jae ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÁ¤¿í ( Kim Jung-Wook ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
Àå±âÅà( Jang Ki-Taeg ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
ÀÌ»óÈÆ ( Lee Sang-Hoon ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÈ£Àç ( Kim Ho-Jae ) - ¿¬¼¼´ëÇб³ ¹æ»ç¼±À¶ÇÕ°øÇаú
Á¶È¿¹Î ( Cho Hyo-Min ) - Çѱ¹Ç¥ÁØ°úÇבּ¸¿ø
½ÅÅÍÀü ( Shin Teo-Jeon ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

º» ¿¬±¸ÀÇ ¸ñÇ¥´Â Ãø¹æ µÎºÎ°èÃø¹æ»ç¼± »çÁøÀÇ ºÐ¼®¿¡ ÀÌ¿ëµÇ´Â ¼ÒÇÁÆ®¿þ¾îÀÇ ¼Ò±Þ¼º È®º¸¿Í ÃøÁ¤°ªÀÇ ºÒÈ®µµ¸¦ °è»êÇÏ´Â °ÍÀÌ´Ù. ¶ÇÇÑ À̸¦ ÀÌ¿ëÇØ ¼Ò¾Æ¿¡¼­ ±³Á¤Ä¡·á¸¦ À§ÇÑ °èÃø°ªÀÇ Âü°í Ç¥ÁØÀ» ¾ò±â À§ÇÑ ±â¹ÝÀ» ¸¶·ÃÇÏ°íÀÚ ÇÏ¿´´Ù. ±³Á¤Ä¡·á¸¦ À§ÇØ ¼­¿ï´ëÇб³ Ä¡°úº´¿ø ¼Ò¾ÆÄ¡°ú¿¡ ³»¿øÇÑ 6¼¼¿¡¼­ 13¼¼ »çÀÌ È¯¾Æ Áß 1±Þ ºÎÁ¤±³ÇÕÀ¸·Î Áø´Ü ¹ÞÀº ȯ¾Æ 100¸íÀÇ µ¥ÀÌÅ͸¦ ¼öÁýÇÏ¿´´Ù. ¼Ò±Þ¼º È®º¸¸¦ À§ÇØ ¹æ»ç¼± ÃÔ¿µÀÌ °¡´ÉÇÑ phantom Àåºñ¸¦ Á¦ÀÛÇÏ¿´À¸¸ç, ÇöÀç »ç¿ëÁßÀÎ °èÃø ¼ÒÇÁÆ®¿þ¾î¸¦ ÀÌ¿ëÇÏ¿© phantom ÀåºñÀÇ ±æÀÌ¿Í °¢µµ¸¦ ÃøÁ¤ÇÏ¿© ¼ÒÇÁÆ®¿þ¾îÀÇ ±³Á¤°ªÀ» °è»êÇÏ¿´´Ù. ºÒÈ®µµ °è»êÀ» À§ÇØ 100¸íÀÇ Ãø¹æµÎºÎ¹æ»ç¼± ¿µ»ó °èÃø°ª°ú ¹Ýº¹ÃøÁ¤¿¡ ÀÇÇÑ ºÒÈ®µµ¿Í(AÇü ºÒÈ®µµ) ÃÖ¼ÒºÐÇØ´É°ú µÎºÎÀÇ À§Ä¡¿¡ ÀÇÇÑ ºÒÈ®µµ¸¦(BÇü ºÒÈ®µµ) °è»êÇÏ¿´´Ù. À̸¦ ÅëÇØ ÇÕ¼ºÇ¥ÁغÒÈ®µµ¸¦ ¾ò¾úÀ¸¸ç ÃÖÁ¾ÀûÀ¸·Î È®ÀåºÒÈ®µµ¸¦ °è»êÇÏ¿´´Ù. º» ¿¬±¸ °á°ú ÇöÀç »ç¿ëÁßÀÎ Ãø¹æµÎºÎ¹æ»ç¼±»çÁø °èÃø ÇÁ·Î±×·¥ÀÌ ³ôÀº Á¤È®¼º°ú ½Å·Úµµ¸¦ °¡Áö´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. ¶ÇÇÑ ±³Á¤°ªÀ» ÀÌ¿ëÇÏ¿© °èÃø°ªÀ» ±³Á¤ÇÏ¿´À¸¸ç, 6 - 13¼¼ Çѱ¹ÀÎ ¼Ò¾Æ¿¡¼­ÀÇ ±³Á¤°èÃøÄ¡ÀÇ ºÒÈ®µµ¸¦ °è»êÇÏ¿© 1±Þ ºÎÁ¤±³ÇÕ È¯¾ÆÀÇ ±³Á¤°èÃø°ªÀÇ 95% ½Å·Úµµ¸¦ °¡Áö´Â ºÐÆ÷¹üÀ§¸¦ Á¦½ÃÇÏ¿´´Ù.

The aim of this study was to obtain the traceability of the software used to analyze lateral cephalometry and to calculate the uncertainty of the measurements. Furthermore, this study aimed to provide a basis for obtaining standard references for measurement values for orthodontic treatment in children. Cephalometric data were collected from 100 children diagnosed with class I malocclusion between the ages 6 to 13 years who visited the pediatric dentist at Seoul National University Dental Hospital. To ensure traceability, a phantom device was created. Correction values were calculated by measuring the length and angle of the phantom device using the software. Type A uncertainty was calculated by obtaining the standard deviation of cephalometric measurements of 100 persons and the standard error of repeated measurements. Determination of the type B uncertainty was induced by minimum resolution and the position of the head. Using these, the combined standard uncertainty was obtained and the expanded uncertainty was calculated. The results of this study confirm that the currently used software has high accuracy and reliability. Furthermore, the uncertainty of orthodontic measurements in Korean children aged 6 to 13 years was calculated, and distribution range for class I malocclusion with 95% confidence interval was suggested.

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Uncertainty; Traceability; Lateral cephalogram

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