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Comparison of analysis of the lateral cephalogram and analysis of lateral facial photograph

Korean Journal of Orthodontics 2006³â 36±Ç 1È£ p.74 ~ 83
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Abstract

¿À·¡ ÀüºÎÅÍ ±³Á¤Áø´Ü ¹× Ä¡·á°èȹ ¼ö¸³ ½Ã °ñ°Ý ¹× Ä¡¿­ °ü°è¿Í ¾È¸ð¸¦ ºÐ¼®Çϱâ À§ÇÑ ÇʼöÀûÀÎ Áø´Ü ÀÚ·á·Î Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁøÀ» ÀÌ¿ëÇÏ¿´´Ù. ÇÏÁö¸¸ ÃÖ±Ù µé¾î ½É¹ÌÀûÀÎ Ãø¸éÀÌ °­Á¶µÇ¸é¼­ Á» ´õ Á¤·®È­µÈ ¿¬Á¶Á÷ ºÐ¼®¹ýÀÌ ÇÊ¿äÇÏ°Ô µÇ¾ú°í Á» ´õ »ç½ÇÀûÀÎ ¿¬Á¶Á÷ Ãø¸ð¸¦ ¾ò±â À§Çؼ­´Â Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁøº¸´Ù´Â Ãø¸ð »çÁøÀÌ ´õ À¯¿ëÇÒ °ÍÀÌ´Ù. ¾ÆÁ÷±îÁö Ãø¸ð »çÁøÀ» °èÃø, ºÐ¼®ÇÏ´Â °æ¿ì´Â µå¹°¾ú±â ¶§¹®¿¡ ÀÌ ¿¬±¸¿¡¼­´Â Ãø¸ð »çÁøÀÇ °èÃø ºÐ¼®À» Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁø ºÐ¼®°ú ºñ±³ÇØ º½À¸·Î½á ¿¬Á¶Á÷°ú °æÁ¶Á÷ ºÐ¼®ÀÌ ¼­·Î »ó°ü°ü°è¸¦ °®´ÂÁö¸¦ ¾Ë¾Æº¸°í ±× ´ëü °¡´É¼ºÀ» ½ÃÇè Æò°¡ÇØ º¸°íÀÚ ÇÏ¿´´Ù. ±³Á¤°ú¿¡ ³»¿øÇÑ È¯ÀÚµé Áß Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁøÀÇ °èÃøÄ¡ÀÎ ANB¸¦ ±âÁØÀ¸·Î ¥°±Þ ºÎÁ¤±³ÇÕ(0¢ª~4¡Æ) 32¸í, ¥±±Þ ºÎÁ¤±³ÇÕ(4¡Æ¡Â) 32¸í, ¥²±Þ ºÎÁ¤±³ÇÕ(5¡Æ~0¡Æ) 31¸íÀ» ¼±Á¤ÇÏ¿´´Ù. °¢ ÇÇÇèÀÚµéÀÇ Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁø°ú Ãø¸ð »çÁøÀ» °¢°¢ ÃÔ¿µÇÏ¿© ¼öÆòÀû, ¼öÁ÷Àû °èÃø Ç׸ñÀ» ¼³Á¤ÇÑ ÈÄ °¢ °èÃøÄ¡µéÀÇ Æò±Õ°ú Ç¥ÁØÆíÂ÷¸¦ ±¸ÇÏ¿´°í Åë°èÀû À¯ÀǼºÀ» ¾Ë¾Æº¸±â À§ÇØ Ç¥ÁØÈ­ º¯¼ö Z¸¦ ÀÌ¿ëÇÑ t-test¿Í »ó°üºÐ¼®À» ÀÌ¿ëÇÏ¿´´Ù. ºÐ¼® °á°ú Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁø ºÐ¼®¿¡¼­ ¼¼ ±×·ì °£¿¡ ¶Ñ·ÇÇÑ Â÷À̸¦ º¸ÀÌ´Â °èÃøÄ¡µéÀÌ Ãø¸ð »çÁø¿¡¼­µµ À¯»çÇÑ Â÷À̸¦ º¸ÀÌ´Â °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. º» ¿¬±¸°á°ú Ãø¸ð»çÁøÀº Sn-N¡¯-Pg¡¯Àº Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁø¿¡¼­ »ó,ÇϾǰñÀÇ ÀüÈĹæÀûÀÎ °ü°è¸¦ ³ªÅ¸³»´Â ANB¸¦ ´ë½ÅÇÏ¿© »ç¿ëµÉ ¼ö ÀÖÀ¸¸ç, Ãø¸ð »çÁøÀÇ N¡¯-Sn/Sn-Pg¡¯Àº Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁøÀÇ NA/APg (ficial convexity)À», ±×¸®°í Ãø¸ð »çÁøÀÇ N¡¯-Tra-Me¡¯´Â Ãø¸ð µÎºÎ¹æ»ç¼±°èÃø»çÁøÀÇ FH-MP (mandibular plane)À» ´ë½ÅÇÏ¿© »ç¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸·Î º¸ÀδÙ.

Alalysis of lateral cephalometric radiograph (cephalogram) has been used routinely to evaluate skeletal and dental relationships, but alalysis of the lateral facial photograph has not been used frequently for evaluation of skeletal relationships. As concerns about harm of X-ray irradiation increases, this study was planned to evaluate the possibility of substituting analysis of the lateral cephalogram with analysis of the lateral facial photograph by comparing these two analysis. According to the ANB values from cephalometric analysis, subjects were divided into three group: Class¥°malocclusion group (n = 32). Class ¥± malocclusion group (n = 32), and Class ¥² malocclusion group (n = 31). After measurements of angles indicating horizontal and vertical relationships of the maxilla and mandible on the lateral cephalograms and photographs, differences between Class¥°,¥± and ¥² groups were evaluated. To evaluate the similarity between two similar values in the cephalograms and photographs, t-test using standardized variable Z and correlation analysis were performed in the Class ¥°malocclusion group. The results show that 1) SnN¡¯Pg¡¯ on the photograph can be used to evaluate the antero-posterior relationship of the maxilla and mandible (ANB), 2) N¡¯-Sn/Sn-Pg¡¯ on the photograph can be used to evaluate facial convexity (NA/APg), 3) Sn-Tra-Me¡¯ on the photograph can be used as a measurement similar to FMA, In conclusion, partly substituting lateral cephalogram analysis with lateral facial photograph analysis was possible in the evaluation of the maxilla and mandible.

Å°¿öµå

µÎºÎ¹æ»ç¼±°èÃø»çÁø;Ãø¸ð »çÁø;°èÃø;°ñ°Ý °ü°è;Cephalometric radiograph;Facial photograph;Cephalometric analysis;Skeletal relationship

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