CAD/CAM 3-unit bridgesÀÇ º¯¿¬ ÀûÇÕµµ¿¡ °üÇÑ ¿¬±¸
A study on the marginal fit of CAD/CAM 3-unit bridges
À̱âÈ«, ¿©Àμº, ±è¼ºÈÆ, ÇÑÁß¼®, ÀÌÀçºÀ, ¾çÀçÈ£,
¼Ò¼Ó »ó¼¼Á¤º¸
À̱âÈ« ( Lee Ki-Hong ) - ¼¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¿©Àμº ( Yeo In-Sung ) - ¼¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±è¼ºÈÆ ( Kim Sung-Hun ) - ¼¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
ÇÑÁß¼® ( Han Jung-Suk ) - ¼¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
ÀÌÀçºÀ ( Lee Jai-Bong ) - ¼¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¾çÀçÈ£ ( Yang Jae-Ho ) - ¼¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
KMID : 0362420110490020101
Abstract
¿¬±¸ ¸ñÀû: º» ¿¬±¸¿¡¼´ÂCAD/CAM (computer-aided design / computer-aided manufacturing) ½Ã½ºÅÛÀ¸·Î Á¦ÀÛµÈLAVA (3M ESPE, Seefeld, Germany) 3-unit bridge¿Í Åë»óÀûÀÎ ¹æ¹ýÀ¸·Î Á¦ÀÛµÈ PFG 3-unit bridgeÀÇ º¯¿¬ ÀûÇÕµµ¸¦ ºñ±³ ºÐ¼®ÇØ º¸°íÀÚ ÇÑ´Ù.
¿¬±¸ Àç·á ¹× ¹æ¹ý: ·¹ÁøÄ¡¸¦ ÀüºÎ µµÀç°üÀ» À§ÇÑ »èÁ¦¸¦ ½ÃÇàÇÏ°í Àλó äµæÇÏ¿© ·¹Áø ¸ðÇü (Exakto-form model resin, Bredent, Senden, Germany)À»±º´ç10°³¾¿ Á¦ÀÛÇÏ¿´´Ù. ·¹Áø ¸ðÇüÀÇ ÀλóÀ» äµæÇÏ¿© ¼®°í ¸ðÇüÀ» Á¦ÀÛÇÏ°í PFG, LAVA 3-unit bridge¸¦ 10°³¾¿ Á¦ÀÛÇÏ¿´´Ù. Á¦ÀÛµÈ bridge¸¦ ·¹Áø ¸ðÇü¿¡ Á¢ÂøÇÏ°í ½Çü Çö¹Ì°æ(Stereoscopic microscope, Nikon DS-Fi 1, Nikon, Japan)À» »ç¿ëÇÏ¿© °¢ Ä¡¾Æ´ç 4Á¡¿¡¼ º¯¿¬ ÀûÇÕµµ¸¦ ÃøÁ¤ÇÏ¿´´Ù (¡¿75). ÃøÁ¤µÈ °á°ú´Â independent t-test·Î Åë°è ºÐ¼®ÇÏ¿´´Ù (¥á= 0.05).
°á°ú: °¢ ±º¿¡¼ º¯¿¬ ÀûÇÕµµÀÇ Æò±Õ°ú Ç¥ÁØÆíÂ÷´Â PFG bridge ÁßÀýÄ¡¿¡¼´Â 97.1 ¡¾ 18.7 §, °ßÄ¡¿¡¼´Â 76.6 ¡¾ 21.8 §, LAVA bridge ÁßÀýÄ¡¿¡¼´Â 90.4 ¡¾ 26.7 §, °ßÄ¡¿¡¼´Â 110.2 ¡¾ 30.2 § À̾ú´Ù. PFG 3-unit bridge¿ÍLAVA 3-unit bridge¿¡¼ ÁßÀýÄ¡¿¡¼´Â Åë°èÀû À¯ÀǼºÀÌ ¾ø¾ú°í, °ßÄ¡¿¡¼´ÂLAVAÀÇ º¯¿¬ °£°ÝÀÌ Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù (P<.05).
°á·Ð: PFG 3-unit bridge¿Í LAVA 3-unit bridge µÎ ±º ¸ðµÎ ÀÓ»óÀûÀ¸·Î ¹Þ¾Æµé¿©Áú ¸¸ÇÑ º¯¿¬ ÀûÇÕµµ¸¦ º¸¿´´Ù.
PURPOSE: The purpose of this study was to assess the marginal fit of three-unit bridges produced using LAVA CAD/CAM (computer-aided design/computer-aided manufacturing) system and conventional PFG in vitro.
MATERIALS AND METHODS: #11, 13 resin teeth were prepared on dentiform, then duplicated. Twenty resin models were fabricated, ten for PFG 3-unit bridges and ten for LAVA 3-unit bridges. Each bridge was cemented on the resin model. Marginal discrepancy was measured with stereoscopic microscope (Nikon DS-Fi 1, Nikon, Japan) at a magnification of ¡¿75. Independent t-test was done for the statistical analysis.
RESULTS: The mean marginal discrepancy values and standard deviations of the PFG bridges was 97.1 ¡¾ 18.7 § for incisors, 76.6 ¡¾ 21.8 § for canines; that of the LAVA bridges was 90.4 ¡¾ 26.7 § for incisor, 110.2 ¡¾ 30.2 § for canines. The mean marginal discrepancy between PFG and LAVA for incisor did not show significant difference (P>.05). But for canine, the mean marginal discrepancy of PFG bridges was smaller than that of LAVA bridges (P<.05).
CONCLUSION: The LAVA CAD/CAM 3-unit bridges and the PFG 3-unit bridges showed clinically acceptable marginal discrepancy.
Å°¿öµå
º¯¿¬ ÀûÇÕµµ
CAD/CAM; LAVA; PFG; Marginal fit
¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸
µîÀçÀú³Î Á¤º¸