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Effect of various casting alloys and abutment composition on the marginal accuracy of bar-type retainer

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ÀÌÀ±Èñ, ¼Û¿µ±Õ, ÀÌÁؼ®,
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ÀÌÀ±Èñ ( Lee Yun-Hui ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¼Û¿µ±Õ ( Song Young-Gyun ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
ÀÌÁؼ® ( Lee Joon-Seok ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¿¬±¸¸ñÀû: ÇÕ±ÝÀÇ Á¾·ù¿Í Áö´ëÁÖÀÇ ÀçÁúÀÇ Â÷ÀÌ°¡ º¯¿¬ÀûÇÕµµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºñ±³ ºÐ¼®ÇÏ°íÀÚ ÇÑ´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: 2°³ÀÇ ÀÓÇöõÆ® À¯»çü¸¦ ÆòÇàÇÏ°Ô À§Ä¡½ÃŲ ÈÄ ¾ÆÅ©¸±¸¯ ·¹ÁøÀ¸·Î Æ÷¸ÅÇÏ¿© ¿¬±¸¸ðÇüÀ» Á¦ÀÛÇÏ¿´´Ù. ¹Ù ±¸Á¶¹°Àº gold UCLA Áö´ëÁÖ¿¡ °í±Í±Ý¼Ó ÇÕ±Ý(high noble metal alloy)°ú ±Í±Ý¼Ó ÇÕ±Ý(noble metal alloy)À», ±×¸®°í metal UCLA Áö´ëÁÖ¿¡ °í±Í±Ý¼Ó Çձݰú ºñ±Í±Ý¼Ó ÇÕ±Ý(base metal alloy)À» ÀÌ¿ëÇÏ¿© ÃÑ 4 Á¾·ùÀÇ ¹Ù ±¸Á¶¹°À» 7°³¾¿ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´´Ù. ÁÖÁ¶µÈ ¹Ù ±¸Á¶¹°À» ·¹Áø ¸ðÇü¿¡ ÀåÂøÇÏ°í ÇÑÂÊ Áö´ë³ª»ç¸¦ Á¶ÀÎ ÈÄ, ¹Ý´ëÂÊ ÀÓÇöõÆ®-Áö´ëÁÖ °£±ØÀÇ ¼öÁ÷ °Å¸®¸¦ ¾Õ, µÚ, Ãø¸é 3ºÎÀ§¿¡¼­ ÀÔü ±¤ÇÐ Çö¹Ì°æÀ¸·Î °üÂûÇÏ¿© ±â·ÏÇÏ¿´´Ù.

°á°ú: °¢ ±ºµéÀÇ º¯¿¬¿ÀÂ÷ Æò±Õ°ªÀº gold UCLA Áö´ëÁÖ¿¡ °í±Í±Ý¼Ó Çձݰú ±Í±Ý¼Ó ÇÕ±ÝÀ» »ç¿ëÇßÀ» ¶§ °¢°¢ 13.69 ¡¾ 6.74 §­¿Í 267.26 ¡¾ 65.85 §­À̾úÀ¸¸ç, metal UCLA Áö´ëÁÖ¿¡ °í±Í±Ý¼Ó Çձݰú ºñ±Í±Ý¼Ó ÇÕ±ÝÀ» »ç¿ëÇßÀ» ¶§ 26.19 ¡¾ 8.14 §­¿Í 61.90 ¡¾ 33.65 §­À̾ú´Ù. One-way ANOVA¸¦ ÀÌ¿ëÇÏ¿© º¯¿¬ ÀûÇÕµµÀÇ Â÷À̸¦ ºÐ¼®ÇßÀ» ¶§ °í±Í±Ý¼Ó ÇÔ±ÝÀ» »ç¿ëÇÑ ±ºµéÀ» Á¦¿ÜÇÏ°í, ¸ðµç ±º°£¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ Á¸ÀçÇÏ¿´´Ù(P<.05). Gold UCLA Áö´ëÁÖ-±Í±Ý¼Ó ÇÕ±Ý Á¶ÇÕÀ» Á¦¿ÜÇÏ°í ¸ðµÎ 70 §­ ÀÌÇÏÀÇ ¼öÁ÷¿ÀÂ÷¸¦ º¸¿´´Ù.

°á·Ð: ÀÓÇöõÆ® ¹Ù À¯Áö ÀåÄ¡ÀÇ Á¦ÀÛ¿¡ À־ °í±Í±Ý¼Ó ÇÕ±Ý ´ë½Å ºñ±Í±Ý¼Ó Çձݰú metal UCLA Áö´ëÁÖ¸¦ »ç¿ëÇÏ´Â °ÍÀº ÀÓ»óÀû Ÿ´ç¼ºÀÌ ÀÖ´Ù°í ÆǴܵȴÙ.

Purpose: The object of this study was to determine if the low-priced alloy and metal UCLA abutment could be available for manufacturing bar-retained framework of implant prosthesis.

Materials and Methods: Bar structure was classified into 4 groups, The specimen of group 1 and 2 were based on casting high noble metal alloys and noble metal alloys with gold UCLA abutment. The specimen of group 3 and 4 were based on casting noble metal alloys and base metal alloys with metal UCLA abutment. Cast bar structure was installed in an acrylic resin model and only the screw on the hexed abutment side was tightened to 20 Ncm. On the opposite side, vertical discrepancy was measured with stereo microscope from front, back, and lateral side of the implant-abutment interface. One-way ANOVA was performed to analyze the marginal fit discrepancy.

Results: One-way ANOVA test showed significant differences among all groups (P <.05) except for Group 1 and 3. Among them, difference between Group 1 and 2 was noticeable. Measured vertical discrepancies were all below 70 §­ except to Group 2.

Conclusion: Base metal alloy and metal UCLA abutment could be used as an alternative to high-priced gold alloy for implant bar-retained framework.

Å°¿öµå

Metal UCLA Áö´ëÁÖ; ¹Ù À¯ÁöÀåÄ¡; º¯¿¬ÀûÇÕµµ; ºñ±Í±Ý¼Ó ÇÕ±Ý
Metal UCLA abutment; Bar attachment; Marginal adaptation; Base metal alloy

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