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Àü¹ÌÇö, ÀüÀ±°æ, ÀüÀ¯Áø, ¾öÅ°ü, À±ÁöÈÆ,
¼Ò¼Ó »ó¼¼Á¤º¸
Àü¹ÌÇö ( Jeon Mi-Hyeon ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
ÀüÀ±°æ ( Jeon Yun-Kyung ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
ÀüÀ¯Áø ( Jeon You-Jin ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¾öÅ°ü ( Eom Tae-Gwan ) - ¿À½ºÅÛ ÀÓÇ÷£Æ® ¿¬±¸¼Ò
À±ÁöÈÆ ( Yoon Ji-Hoon ) - ¿À½ºÅÛ ÀÓÇ÷£Æ® ¿¬±¸¼Ò

Abstract

°ñÀ¯Âø¼º ÀÓÇöõÆ® º¸Ã¶¹°¿¡¼­ ÇǷγª °úÇÏÁß¿¡ ÀÇÇØ º¸Ã¶À¯Áö ³ª»ç³ª Áö´ëÁÖ ³ª»çÀÇ ÆÄÀý, º¸Ã¶¹°ÀÇ ÆÄÀý, ¶Ç´Â °íÁ¤Ã¼ÀÇ ÆÄÀý µî°ú °°Àº ±â°èÀû °­µµ¿Í ¿¬°üµÈ ¹®Á¦Á¡ÀÌ ¹ß»ýÇÒ °¡´É¼ºÀÌ ³ô´Ù. ÀÓÇöõÆ® ½Ã½ºÅÛÀÇ ±â°èÀûÀÎ °­µµ¿¡ ¿µÇâÀ» ÁÖ´Â ¿ä¼Ò¿¡´Â °íÁ¤Ã¼¿Í ³ª»çÀÇ Á÷°æ, Àç·áÀû Ư¼º, ¿¬°áºÎ µðÀÚÀÎ, Áö´ëÁÖ µðÀÚÀÎ µîÀÌ ÀÖÀ¸¸ç, ÀÌ Áß ÀÓÇöõÆ® °íÁ¤Ã¼¿Í Áö´ëÁÖ°£ÀÇ ¿¬°áºÎ µðÀÚÀÎÀº ÀÓÇöõÆ® ½Ã½ºÅÛÀÇ ±â°èÀûÀÎ ¿¬°á»óÅÂ¿Í ¿¬°áºÎ ¾ÈÁ¤¼ºÀ» °áÁ¤ÇÏ´Â ÁÖ¿ä¼ÒÀÌ´Ù. ´ëºÎºÐÀÇ ±â°èÀû °­µµ¿¡ °üÇÑ ¿¬±¸¿¡¼­Ã³·³ ´ÜÀÏÇÏÁß¿¡ ÀÇÇÑ ¾ÐÃà±ÁÈû°­µµ³ª, ´Ü±âÀûÀÎ ¹Ýº¹ÇÏÁß ÈÄÀÇ °á°ú¸¸À» Æò°¡ÇÏ¿© ÀÓÇöõÆ® ½Ã½ºÅÛÀÇ Àå±âÀûÀÎ ¾ÈÁ¤¼ºÀ» ¿¹ÃøÇϱ⿡´Â ÇÑ°è°¡ ÀÖ´Ù. ¿¬±¸ ¸ñÀû: ÀÌ¿¡ º» ¿¬±¸¿¡¼­´Â external butt joint¿Í internal conical joint¸¦ °®´Â ÀÓÇöõÆ® ½Ã½ºÅÛ(¿À½ºÅÛ»ç)ÀÇ ¿¬°áºÎ µðÀÚÀο¡¼­ °¢°¢ ´Ù¸¥ µÎ °¡Áö Áö´ëÁÖ¸¦ »ç¿ëÇÏ¿©, ¿¬°áºÎ ¹× Áö´ëÁÖ µðÀÚÀÎÀÌ ±â°èÀû °­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾ÐÃà±ÁÈû°­µµ´Â ¹°·Ð ³»±¸¼ºÇѰ踦 ÃøÁ¤ÇÏ¿© ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù. ¿¬±¸ Àç·á ¹× ¹æ¹ý: External butt jointÀÎ US II¿¡¼­´Â Åë»óÀûÀÎ UCLA Áö´ëÁÖ ÇüÅÂÀÇ Cemented abutment(BJT)¿Í ±ÁÈû ÀúÇ×¼ºÀ» Áõ°¡½ÃÅ°±â À§ÇØ ³ª»ç µÎºÎ°¡ Áö´ëÁÖ »ó´Ü¿¡ À§Ä¡Çϵµ·Ï ¼³°èµÈ Safe abutment(BJS)¸¦, internal conical jointÀÎ SS II¿¡¼­´Â one-pieceÇüÀÇ Solid abutment(CJO)¿Í two-pieceÇüÀÇ ComOcta abutment(CJT)¸¦ Áö´ëÁÖ·Î »ç¿ëÇÏ¿´´Ù. ISO ±ÔÁ¤À» Âü°íÇÏ¿© ´ÜÀÏ ÀÓÇöõÆ®, º¯¿¬°ñ Èí¼ö, ±×¸®°í 30¡Æ °æ»çÇÏÁß Á¶°Ç¿¡¼­ ¾ÐÃà±ÁÈû°­µµ¿Í ³»±¸¼ºÇѰ踦 ÃøÁ¤ÇÏ¿´°í ½ÇÆÐ ¾ç»óÀ» °üÂûÇÑ °á°ú ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù. °á°ú ¹× °á·Ð: 1. ¾ÐÃà±ÁÈû°­µµ´Â BJS±º(1392.0N), CJO±º(1261.8N), BJT±º(1153.2N), ±×¸®°í CJT±º(1110.2N) ¼øÀ¸·Î ³·¾ÆÁ³À¸¸ç(P<.05), CJT±º°ú BJT±º »çÀÌ¿¡´Â Â÷ÀÌ°¡ ¾ø¾ú´Ù(P>.05) 2. ³»±¸¼ºÇÑ°è´Â CJO±º(600N), CJT±º(453N), BJS±º(360N) ±×¸®°í BJT±º(300N) ¼øÀ¸·Î ³·¾ÆÁ³´Ù. 3. ¾ÐÃà±ÁÈû°­µµ´Â ¿¬°áºÎ µðÀÚÀÎ ¶Ç´Â Áö´ëÁÖ µðÀÚÀο¡ µû¶ó Â÷À̸¦ º¸¿´À¸¸ç, ³»±¸¼ºÇÑ°è¿¡ À־´Â ¿¬°áºÎ µðÀÚÀÎÀÌ ´õ ÁÖµÈ ¿ä¼Ò·Î ÀÛ¿ëÇÏ¿´´Ù

Fatigue or overload can result in mechanical problems of implant components. The mechanical strength in the implant system is dependent on several factors, such as screw and fixture diameters, material, and design of the fixture-abutment connection and abutment. In these factors, the last rules the strength and stability of the fixture-abutment assembly. There have been some previous reports on the mechanical strength of the fixture-abutment assembly with the compressive bending test or short-term cyclic loading test. However, it is restrictive to predict the long-term stability of the implant system with them. The purpose of this study was to evaluate the influence of the design of the fixture-abutment connection and abutment on the mechanical strength and failure mode by conducting the endurance limit test as well as the compressive bending strength test. Tests were performed according to a specified test(ISO/FDIS 14801) in 4 fixture-abutment assemblies of the Osstem implant system: an external butt joint with Cemented abutment (group BJT), an external butt joint with Safe abutment (group BJS), an internal conical joint with Solid abutment (group CJO), and an internal conical joint with ComOcta abutment (group CJT). The following conclusions were drawn within the limitation of this study. Compressive bending strengths were decreased in order of group BJS(1392.0N), group CJO(1261.8N), group BJT(1153.2N), and group CJT(1110.2N). There were no significant differences in compressive bending strengths between group BJT and group CJT(P>.05). Endurance limits were decreased in order of group CJO(600N), group CJT(453N), group BJS(360N), and group BJT(300N). 3. Compressive bending strengths were influenced by the connection and abutment design of the implant system, however endurance limits were affected more considerably by the connection design.

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compressive bending strength;endurance limit;fatigue;mechanical strength;overload

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