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3Â÷¿ø Àü»êÈ­ ´ÜÃþÃÔ¿µÀÇ Nasion, Sella, BasionÀ¸·Î ±¸¼ºµÈ Á¤Áß ½Ã»ó Æò¸é°ú Á¤¸é µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁøÀÇ Á¤Áß ½Ã»ó Æò¸é ºñ±³

Comparison of midsagittal reference plane in PA cephalogram and 3D CT

Korean Journal of Orthodontics 2010³â 40±Ç 1È£ p.6 ~ 15
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Á¶ÁøÇü ( Cho Jin-Hyung ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç
¹®Áö¿¬ ( Moon Ji-Yeon ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç

Abstract

¾È¸é ºñ´ëĪÀÇ Æò°¡¿¡ ÀÖ¾î °ú°Å Á¤¸é µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁøÀ» ÀÌ¿ëÇÏ´ø °Í°ú´Â ´Ù¸£°Ô ÇöÀç´Â Á¡Â÷ 3D CT¸¦ ÀÌ¿ëÇÏ¿© Æò°¡ÇÏ´Â °ÍÀ¸·Î º¯ÇÏ°í ÀÖ´Ù. º» ¿¬±¸´Â 3D CT¿ÍÀÇ ºñ±³¸¦ ÀÌ¿ëÇÏ¿© Á¤¸é µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁø ºÐ¼®¿¡¼­ ½±°Ô Á¢±ÙÇÒ ¼ö ÀÖ´Â ½Ã»ó ±âÁØ Æò¸éÀ» ã°íÀÚ ÇÏ¿´´Ù. ÀÓ»óÀûÀ¸·Î ¾È¸ð ºñ´ëĪÀÌ ¹ß°ßµÇÁö ¾ÊÀº ¼ºÀΠȯÀÚµéÀ» ´ë»óÀ¸·Î 3D CT¿Í Á¤¸é µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁøÀ» ÃÔ¿µÇÏ¿´°í, Á¤¸é µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁø ºÐ¼®¿¡¼­ ÀÌ¿ëµÇ¾î ¿Ô´ø 5°¡Áö Á¤Áß ½Ã»ó ±âÁØ Æò¸éÀ» ¼±ÅÃÇÏ¿© °èÃøÀ» ½Ç½ÃÇÑ µÚ ÀÌ °ªÀ» 3D CTÀÇ Nasion (Na), Sella (S), Basion (Ba)À¸·Î ±¸¼ºµÈ Á¤Áß ½Ã»ó Æò¸é¿¡ ´ëÇÑ °èÃø°ª°ú ºñ±³ÇÏ¿´´Ù. ±× °á°ú Á¿ìÃø latero-orbitaleÀÇ ¼öÁ÷À̵îºÐ¼±À» Á¤Áß ½Ã»ó ±âÁØ Æò¸éÀ¸·Î ÀÌ¿ëÇÑ Á¤¸é µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁø °èÃø°ªÀÌ 3D CTÀÇ Na, S, BaÀ¸·Î ±¸¼ºµÈ Á¤Áß ½Ã»ó Æò¸éÀ» ÀÌ¿ëÇÑ °èÃø°ª°ú °¡Àå Â÷ÀÌ°¡ ÀÛ¾Ò°í »ó°ü°ü°è°¡ ³ôÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¾È¸é ºñ´ëĪ Æò°¡ ½Ã Á¿ìÃø latero-orbitaleÀÇ ¼öÁ÷À̵îºÐ¼±ÀÌ Á¤¸é µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁø ºÐ¼®¿¡¼­ µµ¿òÀÌ µÇ´Â Á¤Áß ½Ã»ó ±âÁØ Æò¸éÀ¸·Î ÀÌ¿ëµÉ ¼ö ÀÖÀ» °ÍÀÌ´Ù.

Objective:The aim of this study is to find the most helpful midsagittal reference plane for diagnosis in PA cephalometry compared with 3D CT.

Methods:The subjects consisted of 25 adults who showed no facial asymmetry by gross inspection. 3D CT and posteroanterior cephalogram of the subjects were taken. To find the most helpful midsagittal reference plane in PA cephalometry, we considered five kinds of midsagittal planes from which the distances to five landmarks were measured and compared the result with that of 3D CT. The midsagittal plane for 3D CT was determined by the landmarks Nasion, Sella and Basion.

Results:PA measurements using the midsagittal reference plane on a perpendicular plane lying through the midpoint of the right and left latero-orbitales was closest to those of 3D CT.

Conclusions:It was considered that latero-orbitale perpendicular could be used as the helpful midsagittal reference plane to assess facial asymmetry in PA cephalometry.

Å°¿öµå

3Â÷¿ø Àü»êÈ­ ´ÜÃþÃÔ¿µ;Á¤¸é µÎºÎ¹æ»ç¼± ±Ô°Ý»çÁø;Á¤Áß ½Ã»ó ±âÁØ Æò¸é
Three-dimensional computed tomography (3D CT);Posteroanterior cephalogram (PA);Midsagittal reference plane

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