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3Á¾ÀÇ CAD/CAM ½Ã½ºÅÛ¿¡¼­ Áö¸£ÄÚ´Ï¾Æ ÄÚ¾îÀÇ º¯¿¬ ÀûÇÕµµ¿¡ °üÇÑ ºñ±³ ¿¬±¸

Comparative study in marginal adaptation of zirconia cores fabricated with 3 different CAD/CAM systems

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±Ç¿ëÁß, ¹Ú¿øÈñ, ÀÌ¿µ¼ö,
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±Ç¿ëÁß ( Kwon Yong-Joong ) - ÇѾç´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
¹Ú¿øÈñ ( Park Won-Hee ) - ÇѾç´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
ÀÌ¿µ¼ö ( Lee Young-Soo ) - ÇѾç´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç

Abstract

ÃÖ±Ù °³¹ßµÈ ´Ù¾çÇÑ CAD/CAM ½Ã½ºÅÛÀ¸·Î Á¦ÀÛµÈ Áö¸£ÄÚ´Ï¾Æ ÄÚ¾îÀÇ º¯¿¬ ÀûÇÕµµ¿¡ °üÇØ ¸¹Àº ¿¬±¸°¡ ÀÖ¾ú´Ù. ±×·¯³ª ºñ±³ ¿¬±¸´Â ¹ÌÈíÇÑ ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº 3Á¾ÀÇ CAD/CAM ½Ã½ºÅÛ¿¡¼­ ´ÜÀÏ ÀüºÎ µµÀç°üÀ» À§ÇÑ Áö¸£ÄÚ´Ï¾Æ ÄÚ¾îÀÇ º¯¿¬ ÀûÇÕµµ¸¦ ºñ±³ÇÏ´Â °ÍÀÌ´Ù. ½ÇÇèÀ» ÅëÇÏ¿© 3Á¾ÀÇ CAD/CAM ½Ã½ºÅÛ(Adens ½Ã½ºÅÛ, Lava ½Ã½ºÅÛ, Cerasys ½Ã½ºÅÛ) À¸·Î Á¦ÀÛµÈ Áö¸£ÄÚ´Ï¾Æ ÄÚ¾îÀÇ º¯¿¬ ÀûÇÕµµ ¸¦ ºñ±³ÇÏ¿´´Ù. °¢ ½Ã½ºÅÛ´ç 10°³ÀÇ Áö¸£ÄÚ´Ï¾Æ Äھ Á¦ÀÛÇÏ¿´´Ù. ±¤ÇÐÇö¹Ì°æ(L-150A, Nikon, Japan)À» »ç¿ëÇÏ¿© ÃÑ 50°÷ÀÇ º¯¿¬ °£°ÝÀ» ÃøÁ¤ÇÏ¿´´Ù. Åë°è󸮴 Kruskal Wallis test¿Í Wilcoxon Rank Sum test¸¦ ½ÃÇàÇÏ¿´´Ù. ´ÜÀÏ ÀüºÎ µµÀç°üÀ» À§ÇÑ Áö¸£ÄÚ´Ï¾Æ ÄÚ¾îÀÇ ÃÑ º¯¿¬°£°ÝÀº Adens ½Ã½ºÅÛÀÌ 284.5¡¾152.9§­, Lava? ½Ã½ºÅÛÀÌ 99.0¡¾73.0§­, ±×¸®°í Cerasys ½Ã½ºÅÛÀÌ 153.5¡¾85.7§­ À̾ú´Ù. º» ¿¬±¸³»¿¡¼­, Lava ½Ã½ºÅÛÀÌ ´Ù¸¥ ½Ã½ºÅÛ¿¡ ºñÇØ ¿ì¼öÇÑ º¯¿¬ ÀûÇÕµµ¸¦ º¸¿´´Ù.

Statement of problem: There have been many studies about marginal adaptation of Zirconia core fabricated with various CAD/CAM systems. But, the comparative study has not been conducted much.

Purpose: This study was to compare marginal adaptations of zirconia cores fabricated with 3 different CAD/CAM systems.

Material and methods: The in vitro marginal adaptations of zirconia cores fabricated with 3 different CAD/CAM systems(Adens system, Lava system, and Cerasys system) were evaluated and compared. In this study 30 zirconia cores were fabricated(10 zirconia cores per each system). The measurements of the marginal adaptatioin were carried out using microscope L-150A(Nikon, Japan). Measurements were recorded at 50 points. The measurements were analyzed using Kruskal-Wallis test and Wilcoxon rank sum test.

Results: Within the limits of this study, the results were as follows. 1. Mean marginal gap values
obtained were 284.5¡¾152.9§­ in Adens system, 99.0¡¾73.0§­ in Lava system, and 153.5¡¾85.7§­ in Cerasys system.
2. Zirconia core made by Lava system showed the smallest marginal gap(P<0.05).

Conclusion: In the limitation of this study, we concluded that Lava System was superior than other systems(Adens system and Cerasys system) in
the marginal adaptation.

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CAD/CAM ½Ã½ºÅÛ;Áö¸£ÄÚ´Ï¾Æ ÄÚ¾î;º¯¿¬ ÀûÇÕµµ
CAD/CAM system;Zirconia core;Marginal adaptation

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