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Marginal fidelity of zirconia core using MAD/MAM system

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°­µ¿¸², À̱ٿì, ½ÉÁؼº, ¹®È«¼®,
¼Ò¼Ó »ó¼¼Á¤º¸
°­µ¿¸² ( Kang Dong-Rim ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
À̱ٿì ( Lee Keun-Woo ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
½ÉÁؼº ( Shim June-Sung ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¹®È«¼® ( Moon Hong-Seok ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¿¬±¸¸ñÀû : º» ¿¬±¸¿¡¼­´ÂMAD/MAM ½Ã½ºÅÛÀ¸·Î Á¦ÀÛµÈ Áö¸£ÄÚ´Ï¾Æ Äھ Åë»óÀûÀÎ ¹æ¹ýÀ¸·Î Á¦ÀÛµÈ ±Ý¼Ó-µµÀç°ü ÄÚ¾î¿ÍCAD/CAM ½Ã½ºÅÛÀ¸·Î Á¦ÀÛµÈ ÄÚ¾î¿ÍÀÇ º¯¿¬ºÎ ÀûÇÕµµ¸¦ ºñ±³?ºÐ¼®ÇØ º¸°íÀÚ ÇÑ´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ·¹ÁøÄ¡¸¦ ÀüºÎ µµÀç°ü Á¦ÀÛÀ» À§ÇÑ ÇüÅ·Π»èÁ¦ÇÏ°í, À̸¦ º¹Á¦ÇÏ¿© ¼®°í ¸ðÇüÀ» Á¦ÀÛÇÏ¿´´Ù. ¼®°í ¸ðÇü¿¡ ´ëÇØ ±Ý¼Ó-µµÀç°ü, CAD/CAM (Cercon?), 3Á¾ÀÇ MAD/MAM ½Ã½ºÅÛ (Ceramill?, RainbowTM, Zirkonzhan?)À¸·Î °¢°¢ 10°³ÀÇ Äھ Á¦ÀÛÇÏ¿´´Ù. Á¦ÀÛµÈ Äھ ´ÙÀÌ¿¡ ÇÕÂøÇÏ¿© ±¤ÇÐ Çö¹Ì°æ »ó¿¡¼­ 50¹èÀ²·Î º¯¿¬ °£°ÝÀ» °üÂû, °èÃøÇÏ¿´´Ù. ÃøÁ¤µÈ °á°ú´Â one-way ANOVA test·Î ºÐ¼®ÇÏ°í, Tukey¡¯s HSD test·Î »çÈÄ°ËÁ¤ ÇÏ¿´´Ù.

°á°ú : °¢ ½Ã½ºÅÛ¿¡¼­ º¯¿¬ °£°ÝÀÇ Æò±Õ°ú Ç¥ÁØ ÆíÂ÷´Â ±Ý¼Ó-µµÀç°ü ÄÚ¾î 51.97 ¡¾ 23.38 ¥ìm, Cercon? 62.16 ¡¾ 25.88 ¥ìm, Ceramill? 67.64 ¡¾ 40.38 ¥ìm, RainbowTM 125.07 ¡¾ 42.19 ¥ìm, Zirkonzhan? 105.02 ¡¾ 44.61 ¥ìm·Î ÃøÁ¤µÇ¾ú´Ù.

°á·Ð : ±Ý¼Ó-µµÀç°ü Äھ CAD/CAM¿¡ ºñÇØ MAD/MAM ¹æ½ÄÀ¸·Î Á¦ÀÛµÈ ÄÚ¾îÀÇ º¯¿¬ °£°ÝÀÌ Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù (P < .05). MAD/MAM ½Ã½ºÅÛ ³»¿¡¼­µµ Ceramill?, Zirkonzhan?, RainbowTM ¼øÀ¸·Î º¯¿¬ °£°ÝÀÌ ÀÛÀº °ÍÀ¸·Î ÃøÁ¤µÇ¾úÀ¸¸ç, ÀÌÁßCeramill?ÀºCAD/CAM ½Ã½ºÅÛÀÎ Cercon?°ú º¯¿¬ °£°Ý¿¡ À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù.

Purpose: The purpose of this study was to evaluate the fit of zirconia core using MAD/MAM system comparing to that of conventional metal-ceramic and CAD/CAM system.

Materials and Methods : Duplicating the prepared resin tooth, 50 improved stone dies were fabricated. These dies are classified as a group of 5 to create the core. The groups were composed of metal-ceramic, Cercon¢ç, Ceramill¢ç, Rainbow¢â, and Zirkonzhan¢ç. Each core was cemented to stone die, and then, absolute marginal discrepancy was measured with microscope at a magnification of ¡¿50. Statistical analysis was done with one-way ANOVA test and Tukey¡¯s HSD test.

Results: The mean absolute marginal discrepancy for metal-ceramic was 51.97 ¡¾ 23.38 ¥ìm, for Cercon¢ç was 62.16 ¡¾ 25.88 ¥ìm, for Ceramill¢ç was 67.64 ¡¾ 40.38 ¥ìm, for Rainbow¢â was 125.07 ¡¾ 42.19 ¥ìm, and for Zirkonzhan¢ç was 105 ¡¾ 44.61 ¥ìm.

Conclusions: 1. Fit of margin was identified as in the order of metal-ceramic, Cercon¢ç, Ceramill¢ç, Zirkonzhan¢ç, and Rainbow¢â. 2. Absolute marginal discrepancy of the zirconia core that designed by MAD/MAM system had significant differences in order of Ceramill¢ç, Zirkonzhan¢ç, and Rainbow¢â. 3. The mean absolute marginal discrepancy between Cercon¢ç and Ceramill¢ç did not show significant differences.

Å°¿öµå

Áö¸£ÄڴϾÆ;ÄÚ¾î;MAD/MAM;Àý´ë º¯¿¬ ¿ÀÂ÷
Zirconia;core;MAD/MAM;Marginal discrepancy

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