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Pharyngeal airway analysis of different craniofacial morphology using cone-beam computed tomography (CBCT)

Korean Journal of Orthodontics 2009³â 39±Ç 3È£ p.136 ~ 145
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±è¿ëÀÏ ( Kim Yong-Ll ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç
±è¼º½Ä ( Kim Seong-Sik ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç
¼Õ¿ì¼º ( Son Woo-Sung ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
¹Ú¼öº´ ( Park Soo-Byung ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç

Abstract

»ó±âµµ °ø°£Àº 3Â÷¿ø ÀÔü ±¸Á¶¹°·Î¼­ µÎºÎ±Ô°Ý¹æ»ç¼±»çÁø µîÀ¸·Î ºÐ¼®Çϱ⿡´Â Æò°¡ÀÇ ÇÑ°è°¡ Á¸ÀçÇÏ¿´´Ù. º» ¿¬±¸´Â ÃÖ±Ù ¹æ»ç¼± ÇÇÆø·® µîÀÇ °¨¼Ò·Î ±× È°¿ëµµ°¡ ³ô¾ÆÁø cone beam CT (CBCT)¸¦ ÀÌ¿ëÇÏ¿© ¾È¸é°ñ°ÝÇüÅ¿¡ µû¸¥ »ó±âµµ °ø°£ÀÇ ¸éÀû, ÀüÈĹæ Æø°æ ¹× Ãø¹æ Æø°æÀ» ÃøÁ¤ÇÏ°í ±× °ü·Ã¼ºÀ» ¾Ë¾Æº¸¾Ò´Ù. 102¸íÀ» ´ë»óÀ¸·Î CBCT (VCT, Vatech, Seoul, Korea)¸¦ ÃÔ¿µÇÏ¿´À¸¸ç, FH plane¿¡ ÆòÇàÇϸ鼭 aa point (the most anterior point on the anterior arch of atlas), CV2ia, CV3ia point (most infero-anterior point on the body of the second & third cervical vertebra)¸¦ Áö³ª´Â Æò¸éÀ» ±âÁØÀ¸·Î ¼³Á¤ÇÏ¿´´Ù. °¢ Ç׸ñÀÇ °èÃøÄ¡´Â one-way ANOVA¸¦ ÀÌ¿ëÇÏ¿© Åë°èó¸®ÇÏ°í Duncan test·Î »çÈÄ°ËÁ¤ÇÏ¿´´Ù. ¿¬±¸ °á°ú, ¾È¸é °ñ°ÝÇüÅ¿¡ µû¸¥ Ãø¹æ Æø°æ¿¡´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. Group 2 (Class II) Áý´ÜÀº aa plane, CV2 plane, CV3 plane¿¡ ÀÇÇØ Çü¼ºµÈ »ó±âµµ °ø°£ÀÇ ´Ü¸éÀûÀÌ Á¼¾ÒÀ¸¸ç, ÀüÈĹæ Æø°æµµ Group 3 (Class III)¿¡ ºñÇØ À¯ÀǼº ÀÖ°Ô Á¼¾Ò´Ù. ¼öÁ÷ ¾È¸é°ñ°ÝÇüÅÂ¿Í Á¤»ó ¾È¸é°ñ°Ý ÇüÅ°£ÀÇ À¯ÀǼº ÀÖ´Â Â÷ÀÌ´Â ¾ø¾úÀ¸³ª, aa plane¿¡¼­ Çü¼ºµÈ »ó±âµµ °ø°£ÀÇ ÀüÈĹæ Æø°æÀº Group 1V (Class I vertical)°¡ Group 1N (Class I normal)¿¡ ºñÇØ À¯ÀǼº ÀÖ°Ô Á¼Àº °ÍÀ¸·Î ³ªÅ¸³µ´Ù (p £¼ 0.05).

Objective: CBCT has become popular for orthodontic diagnosis and treatment planning in recent times. The 3D pharyngeal airway space needs to be analysed using a 3D diagnostic tool. The aim of this study was to analyse the pharyngeal airway of different craniofacial morphology using CBCT. Methods: The sample compromised 102 subjects divided into 3 groups (Class I, II, III) and 6 subgroups according to normal or vertical craniofacial patterns. All samples had CBCT (VCT, Vatech, Seoul, Korea) taken for orthodontic treatment. The pharyngeal airway was assessed according to the reference planes: aa plane (the most anterior point on the anterior arch of atlas), CV2 plane, and CV3 plane (most infero-anterior point on the body of the second & third cervical vertebra). The intergroup comparison was performed with one-way ANOVA and duncan test as a second step. Results: The results showed the pharyngeal airway and anteroposterior width of group 2 (Class II) in aa plane, CV2 plane, CV3 plane were significant narrower than in group 3 (Class III). There was no significant difference between vertical and normal craniofacial patterns except for the anteroposterior pharyngeal width of Group 1 (Class I) in aa plane. Conclusions: Subjects with Class II patterns have a significantly narrower pharyngeal airway than those with Class III. However there was no difference in pharyngeal airway between vertical and normal craniofacial morphology.

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Cone-beam Àü»êÈ­´ÜÃþÃÔ¿µ;»ó±âµµ °ø°£;¾È¸é°ñ°ÝÇüÅÂ
Cone-beam computed tomography (CBCT);Pharyngeal airway;Craniofacial morphology

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