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Machining Tolerance of Various Implant Systems and their Components

±èÇü¼·, ±Ç±à·Ï, ÇÑÁß¼®,
¼Ò¼Ó »ó¼¼Á¤º¸
±èÇü¼· ( Kim Hyeong-Seob ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±Ç±à·Ï ( Kwon Kung-Rock ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
ÇÑÁß¼® ( Han Jung-Suk ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¿¬±¸¸ñÀû : º» ¿¬±¸¿¡¼­´Â rotational freedomÀ» ÃøÁ¤ÇÒ ¼ö ÀÖ´Â ±â±¸¸¦ °³¹ßÇÏ¿© ½ÃÁß¿¡¼­ À¯ÅëµÇ°í ÀÖ´Â ±¹»ê ÀÓÇöõÆ® ¹× ´Ù¾çÇÑ ±¹ÀûÀÇ ÀÓÇöõÆ®µéÀÇ ±â°èÀûÀÎ °¡°ø¿ÀÂ÷µéÀ» ÃøÁ¤ÇÏ¿© ´Ù¾çÇÑ ÀÓÇöõÆ® ½Ã½ºÅÛÀÇ component°£ÀÇ ±â°èÀûÀÎ ¾ÈÁ¤¼ºÀ» Æò°¡ÇÏ°íÀÚ ÇÑ´Ù. ¶ÇÇÑ º» ¿¬±¸¿¡¼­´Â ´õ ³ª¾Æ°¡ ÃÖ±Ù¿¡ ÀÓÇöõÆ® abutment·Î °¢±¤À» ¹Þ°í ÀÖ´Â °¢Á¾ ceramic abutmentÀÇ Àý»è °¡°ø¿ÀÂ÷¿¡ °üÇÑ Ç׸ñÀ» ÃøÁ¤ÇÏ¿© ÀÓÇöõÆ® Á¦Á¶»ç ¹× ÀÓ»óÀǵ鿡°Ô ¿Ã¹Ù¸¥ Á¤º¸¸¦ Á¦°øÇÏ°íÀÚ ÇÑ´Ù. ¿¬±¸Àç·á ¹× ¹æ¹ý : ±¹³»¿¡¼­ À¯ÅëµÇ´Â ¿ÜºÎ¿¬°á±¸Á¶ÀÇ ¿Ü±¹»ê ÀÓÇöõÆ® ½Ã½ºÅÛ(Nobel Biocare, Anthorgyr)°ú ±¹»ê ½Ã½ºÅÛ(Neobiotec)°ú ³»ºÎ¿¬°á±¸Á¶ÀÇ ÀÓÇöõÆ® ½Ã½ºÅÛ(¿Ü±¹»ê:Nobel Biocare, Anthorgyr, Straumann, Frident Dentsply, ±¹»ê:Dentium) º°·Î ÀÓÇöõÆ® fixture, abutment, analog¸¦ ¼­·Î ±³Â÷ ¿¬°áÇÏ¿© ȸÀü°¢µµÃøÁ¤±â(rotational angle measuring device)·Î freedom of rotational angleÀ» ÃøÁ¤ÇÏ¿´´Ù. ±¹»ê ¿ÜºÎ¿¬°á±¸Á¶ÀÇ Áö¸£ÄÚ´Ï¾Æ abutment(ZirAce)¸¦ ¿ÜºÎ¿¬°á±¸Á¶ÀÇ ÀÓÇöõÆ® ½Ã½ºÅÛ(Neobiotec, Nobel Biocare, Anthorgyr)ÀÇ fixture¿Í analog¿Í ±³Â÷¿¬°áÇÏ¿© freedom of rotational angleÀ» ÃøÁ¤ÇÏ¿´´Ù. ¿¬±¸°á°ú : ±¹»ê ¿ÜºÎ¿¬°á±¸Á¶ÀÇ ÀÓÇöõÆ® ½Ã½ºÅÛÀº ¾à 2.67µµ(fixture¿Í abutment ¿¬°á½Ã), ³»ºÎ¿¬°á±¸Á¶ÀÇ ÀÓÇöõÆ®´Â ¾à 4.3µµ(fixture¿Í abutment ¿¬°á½Ã)ÀÇ rotational freedomÀ» º¸¿´´Ù. ±¹»ê Áö¸£ÄÚ´Ï¾Æ abutment´Â ¿Ü±¹»ê ¹× ±¹»ê ¿ÜºÎ¿¬°á±¸Á¶ ÀÓÇöõÆ® ½Ã½ºÅÛ°ú »ó°ü¾øÀÌ 3µµ ÀÌÇÏ(fixture¿Í ¿¬°á½Ã)ÀÇ °á°ú¸¦ º¸¿´´Ù. °á ·Ð : ½ÃÁ¦Ç°À¸·Î Á¦ÀÛµÈ µðÁöÅРȸÀü°¢µµÃøÁ¤±â´Â ³ôÀº ºÐÇØ´ÉÀ» °®°í ÀÖ¾úÀ¸¸ç, ±¹»ê ÀÓÇöõÆ®ÀÇ ±â°èÀû °¡°ø¿ÀÂ÷´Â ¿Ü±¹»ê ÀÓÇöõÆ®¿Í °ÅÀÇ À¯»çÇß´Ù. ±¹»ê ¼¼¶ó¹Í abutmentÀÇ ±â°èÀû °¡°ø¿ÀÂ÷´Â fixture Á¦Á¶È¸»çº°·Î ´Ù¸£°Ô ³ªÅ¸³µÁö¸¸ °°Àº ȸ»çÀÇ Àý»è°¡°øµÈ ±Ý¼Ó abutment¿Í ºñ±³½Ã °¡°ø¿ÀÂ÷°¡ ´õ Àû¾ú´Ù.

Purpose: Misfit of implant components was very important in terms of prosthodontics. they has been linked to prosthetic complications such as screw loosening and fracture. Although there are many results about rotational freedom or machining tolerance between fixture and abutments, the data about domestic implant systems are lacking. The aim of this in vitro study was to evaluate the rotational freedom of domestic external and internal connection implant systems between their fixtures/anlaogs and abutments comparing imported systems. Materials and Methods: Rotational freedom between abutments and fixtures/analogs was investigated by using digitalized rotational angle measuring device. (1) 1 domestic external connection system(Neobiotec) and 2 imported external connection systems(Nobel Biocare, Anthorgyr), (2) 1 domestic internal connection system(Dentium) and 4 imported external connection systems(Nobel Biocare, Anthorgyr, Straumann, Frident Dentsply), and (3) 1 domestic zirconia external connection abutment(ZirAce) were evaluated. Each group has 3 samples. Mean values for each group were analyzed. Results: The differences relative to rotational freedom between domestic and imported implant systems were observed but domestic external connection implant system showed about 2.67 degrees(in case of fixture) and internal connection system showed about 4.3 degrees(in case of fixture). Domestic zirconia abutment showed less than 3 degrees of rotational freedom in a situation where the abutment was connected to an implant fixture egardless of domestic or imported systems. Conclusion: Newly developed digitalized rotational angle measuring device has high measuring resolution. The rotational freedom of domestic implant systems were similar to imported implant systems

Å°¿öµå

rotational freedom;machining tolerance;implant;abutment

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KCI