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Effect of various abutment systems on the removal torque and the abutment settling in the conical connection implant systems

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ÀÌÁø¼± ( Lee Jin-Seon ) - ´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: º» ¿¬±¸ ¸ñÀûÀº ¼­·Î ´Ù¸¥ Àç·á·Î Á¦ÀÛµÈ Áö´ëÁÖ¸¦ ÀÌ¿ëÇÏ¿© µ¿ÀûÇÏÁßÀ» °¡ÇßÀ» ¶§ Ç®¸²ÅäÅ©¿Í ħÇÏ·®¿¡ ´ëÇÑ ÀÓÇöõÆ®-Áö´ëÁÖ ¿¬°áºÎÀÇ ¾ÈÁ¤¼º¿¡ ´ëÇÏ¿© ¾Ë¾Æº¸´Â °ÍÀÌ´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ¿øÃßÇü ³»ºÎ¿¬°á ±¸Á¶¸¦ °®´Â ÀÓÇöõÆ®¿¡ ÀÌ¿ëµÇ´Â ¼¼ °¡Áö Áö´ëÁÖ, ƼŸ´½ ÇÕ±Ý Áö´ëÁÖ(Cement abutment, Osstem Co., Seoul, Korea), ±Í±Ý¼Ó UCLA Áö´ëÁÖ(UCLA Goldcast abutment, Osstem Co., Seoul, Korea), ºñ±Í±Ý¼Ó UCLA Áö´ëÁÖ(CCM Metalcast abutment, 3M ESPE, Seefeld, Germany)¸¦ »ç¿ëÇÏ¿´´Ù. ±Í±Ý¼Ó UCLA Áö´ëÁÖ¿Í ºñ±Í±Ý¼Ó UCLA Áö´ëÁÖ¸¦ ƼŸ´½ Áö´ëÁÖ¿Í À¯»çÇÑ ÇüÅ·Π³³ÇüÀ» Çü¼º ÇÑ ÈÄ °¢°¢ Á¦ 3Çü ±ÝÇÕ±Ý(E-3, Heesung catalyst Co., Seoul, Korea)¿Í ´ÏÄÌ-Å©·Ò ÇÕ±ÝÀÎ(Rexillium III, Pentron, San Diego, USA)¸¦ »ç¿ëÇÏ¿© ÁÖÁ¶ ÇÏ¿´´Ù. ÀÓÇöõÆ®¿Í Áö´ëÁÖ¸¦ µðÁöÅÐ ÅäÅ© ÄÁÆ®·Ñ·¯¸¦ ÀÌ¿ëÇÏ¿© 30 N cm·Î ü°áÇÏ¿´°í ÀüÇÏÁß »ó½ÇÀ» º¸»óÇϱâ À§ÇÏ¿© 10ºÐ ÈÄ ´Ù½Ã °°Àº ÈûÀ¸·Î ü°á ÇÏ¿´´Ù. µðÁöÅÐ ÅäÅ© °ÔÀÌÁö¸¦ »ç¿ëÇÏ¿© Ç®¸²ÅäÅ©¸¦ ÃøÁ¤ÇÏ¿´°í µðÁöÅÐ ¸¶ÀÌÅ©·Î¹ÌÅ͸¦ ÀÌ¿ëÇÏ¿© ÀÓÇöõÆ®/Áö´ëÁÖ ±æÀ̸¦ ÃøÁ¤ÇÏ¿´´Ù. ±× ÈÄ µ¿Àû ÇÏÁß ÇÇ·Î ½ÃÇè±â¿¡ Áö´ëÁÖ¸¦ ÀåÂøÇÑ ÈÄ ÃÖ´ë 250 N, ÃÖ¼Ò 25 N, ÁÖ±â 14 HZÀÇ sineÇüÀÇ ÇÏÁßÀ» ÀåÃà°ú ÆòÇàÇÏ°Ô °¡ÇÏ¿´´Ù. ÇÏÁß ÈÄ ÀÓÇöõÆ®/Áö´ëÁÖÀÇ ±æÀ̸¦ ÀçÃøÁ¤ ÇÏ°í, ÀüÈÄ ±æÀ̺¯È­·®À» ÀÌ¿ëÇÏ¿© ħÇÏ·®À» °è»êÇÏ¿´À¸¸ç Ç®¸²ÅäÅ©¸¦ ÃøÁ¤ÇÏ¿´´Ù.

°á°ú: ÇÏÁß ÀüÈÄÀÇ ±æÀ̸¦ ºñ±³ÇÏ¿´À» ¶§ ¼¼ ±º ¸ðµÎ¿¡¼­ À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(P<.05). ±º °£ÀÇ Ä§ÇÏ·®À» ºñ±³ÇÏ¿´À» ¶§ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö´Â ¾Ê¾Ò´Ù. ÇÏÁßÀüÈÄÀÇ Ç®¸²ÅäÅ©¸¦ ºñ±³ÇÏ¿´À» ¶§ ¿ª½Ã ¼¼ ±º ¸ðµÎ¿¡¼­ À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌ¸ç °¨¼ÒÇÏ¿´´Ù (P<.05). ÇÏÁß Àü Ç®¸²ÅäÅ©¿Í ÇÏÁß ÈÄ Ç®¸²ÅäÅ©¸¦ ±º°£ ºñ±³ÇÏ¿´À» °æ¿ì¿¡´Â Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö´Â ¾Ê¾Ò´Ù.

°á·Ð: ¿øÃßÇü ³»ºÎ ¿¬°á±¸Á¶¸¦ °®´Â ÀÓÇöõÆ®¿¡¼­ µ¿ÀûÇÏÁßÀº ÀÓÇöõÆ®ÀÇ Ä§ÇÏ·®°ú Ç®¸²ÅäÅ©¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î º¸À̳ª Áö´ëÁÖ°£ Â÷ÀÌ´Â ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ºñ±Í±Ý¼ÓUCLA Áö´ëÁÖÀÌ »ç¿ëÀº ±Í±Ý¼Ó UCLA Áö´ëÁÖ¿Í ¸¶Âù°¡Áö·Î ±â´ÉÀû ÇÏÁß¿¡¼­ ¾ÈÁ¤ÀûÀÏ °ÍÀ¸·Î »ç·áµÈ´Ù.

Purpose: The aim of this study was to evaluate the effects of different abutment materials on abutment screw loosening and settling-down effect in conical connection type implant system.

Materials and Methods: Three types of abutment, cementation, gold UCLA, and metal UCLA abutment were used. Two UCLA groups were fabricated in a similar pattern to cementation abutment. Type III gold alloy and Nickel-Chromium alloy was used for casting gold UCLA abutment and metal UCLA abutment, respectively. Fixture and abutment were tightened to 30 Ncm by using digital torque controller and re-tightening was conducted with same force after 10 minutes. Digital torque gauge was used to measure loosening torque and fixture/abutment length was measured by digital micrometer. Dynamic loads between 25 N and 250 N were applied with 0¢ª angle to the abutment axis. After loading, fixture/abutment length was re-measured and amount of settlement was calculated. Loosening torque value was also measured for comparison.

Results: All three groups showed significant differences of length when comparing before and after loading, but there was no significant difference of settling amount in all groups. Loosening torque values were significantly decreased when comparing before and after loading in all groups(P<.05). However, there was no significant difference in loss of loosening torque values when compared to groups.

Conclusion: In internal conical connection type implants, dynamic load affected on settlement and loosening torque of implant, but there was no differences between abutments materials. Likewise gold UCLA abutment, metal UCLA abutment might be able to withstand functional load.

Å°¿öµå

ºñ±Í±Ý¼ÓUCLA Áö´ëÁÖ; Á¤ÂøÈ¿°ú; µ¿ÀûÇÏÁß; ÀÓÇöõÆ®-Áö´ëÁÖ
Metal UCLA abutment; Settling effect; Dynamic loading; Implant-abutment

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