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Comparison of removal torque between prefabricated and customized abutment screw

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Jamiyandorj Otgonbold, ±è¹«¼º, ±èÁöȯ, ¹Ú¿µ¹ü, ½ÉÁؼº,
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 ( Jamiyandorj Otgonbold ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±è¹«¼º ( Kim Mu-Seong ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±èÁöȯ ( Kim Jee-Hwan ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
¹Ú¿µ¹ü ( Park Young-Bum ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
½ÉÁؼº ( Shim June-Sung ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¿¬±¸ ¸ñÀû: º» ¿¬±¸ÀÇ ¸ñÀûÀº ÀÓÇöõÆ® Áö´ëÁÖ ¿¬°á¿¡ »ç¿ëµÇ´Â ±â¼ºÇ° ³ª»ç¿Í ¸ÂÃãÇü ³ª»çÀÇ Ç®¸² ÅäÅ©¸¦ ºñ±³ÇÏ´Â °ÍÀÌ´Ù. ¿¬±¸ Àç·á ¹× ¹æ¹ý: ¼¼°¡Áö ÀÓÇöõÆ® ½Ã½ºÅÛ¿¡(Osstem, Astra, Zimmer) ´ëÇØ °íÁ¤Ã¼¿Í Áö´ëÁÖÀÇ ¿¬°á¿¡ ±â¼ºÇ° ³ª»ç±º(´ëÁ¶±º)°ú ¸ÂÃãÇü ³ª»ç±º(½ÇÇ豺)À¸·Î ÃÑ 6±º(n = 6)À¸·Î ³ª´©¾ú´Ù. Á¶ÀÓ ÅäÅ©Á¶ÀýÀº µðÁöÅÐ ÅäÅ© ÃøÁ¤±â¸¦ ÀÌ¿ëÇÏ¿´À¸¸ç °¢ ÀÓÇöõÆ® Á¦Á¶»ç°¡ ÃßõÇÑ Á¶ÀÓ ÅäÅ© °ªÀ» Àû¿ëÇÏ¿´´Ù. ü°á 10ºÐ ÈÄ µ¿ÀÏÇÑ Á¶ÀÓ ÅäÅ©¸¦ ´Ù½Ã Àû¿ëÇÏ°í 5ºÐ ÈÄ¿¡ Ç®¸² ÅäÅ©·ÂÀ» ÃøÁ¤ÇÏ¿´´Ù. ÀÌ °úÁ¤À» 10ȸ ¹Ýº¹ ÃøÁ¤ÇÏ¿´´Ù. ¹Ýº¹ ÇÏÁß ½ÇÇè¿¡¼­´Â 6°³ ±º(n = 3)¿¡ ´ëÇØ Ã¼°á 10ºÐ ÈÄ 2Â÷ Á¶ÀÓ ÅäÅ©¸¦ Àû¿ëÇÏ°í °æ»ç·Î 50 N ÇÏÁßÀ¸·Î ÃÑ 1,000,000¹ø ¹Ýº¹ ÇÏÁßÀ» °¡ÇÏ¿´´Ù. ¹Ýº¹ ÇÏÁß Àû¿ë ÀÌÈÄ Ç®¸² ÅäÅ©°ªÀ» ÃøÁ¤ÇÏ¿´´Ù. Åë°è ¹æ¹ýÀ¸·Î´Â 10ȸ ¹Ýº¹ ÃøÁ¤¿¡¼­ Ç®¸² ÅäÅ©°ªÀÇ Â÷À̸¦ ºñ±³Çϱâ À§ÇØ repeated measures of ANOVA test (=.05)¸¦ »ç¿ëÇÏ¿´°í, ¹Ýº¹ ÇÏÁß ÈÄ Ç®¸² ÅäÅ©°ªÀÇ Â÷À̸¦ ºñ±³Çϱâ À§Çؼ­ °¢ ½Ã½ºÅÛº° Independant t-test·Î Åë°è ó¸®ÇÏ¿´´Ù. °á°ú: ¸ðµç ±º¿¡¼­ ¹Ýº¹ Ƚ¼ö°¡ Áõ°¡ÇÒ¼ö·Ï Ç®¸² ÅäÅ©°ªÀÌ À¯ÀǼº ÀÖ°Ô °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù(P<.05). 10ȸ ¹Ýº¹ ÃøÁ¤ ½ÇÇè¿¡¼­´Â ¼¼ Á¾·ùÀÇ ÀÓÇöõÆ®¿¡¼­ ´ëÁ¶±º(±â¼ºÇ°³ª»ç)°ú ½ÇÇ豺(¸ÂÃãÇü ³ª»ç) °£¿¡ Ç®¸² ÅäÅ©°ªÀº À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù(P>.05). ¹Ýº¹ ÇÏÁß ½ÇÇè¿¡¼­ ¼¼°¡Áö ½Ã½ºÅÛ¿¡¼­ ´ëÁ¶±º°ú ½ÇÇ豺 °£ÀÇ Ç®¸² ÅäÅ©·ÂÀº À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù(P>.05). °á·Ð: ¹Ýº¹ ÃøÁ¤µÈ Ç®¸²·Â °Ë»ç¿Í ¹Ýº¹ ÇÏÁßÀ» Àû¿ë ÈÄ Ç®¸²·Â °Ë»ç¿¡¼­ ¸ÂÃãÇü ³ª»ç¿Í ±â¼ºÇ° ³ª»çÀÇ Ç®¸²·ÂÀº À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù.

Purpose: The purpose of this study is to compare the removal torque between prefabricated and customized implant abutment screw.

Materials and Methods: Three types of implant system (Osstem, Astra, Zimmer) were used. For each system, prefabricated abutment screw (control group) and customized abutment screw (test group) were used to connect the fixture and the abutment (n = 6). Digital torque gauze was used to control the tightening torque and the screws were tightened under each manufacturer¡¯s recommendation. 10 minutes after the connection the same tightening torque was applied, and 5 minutes after the second connection, the removal torque was measured. This procedure was repeated 10 times. In the cyclic loading test, 10 minutes after the first connection to the 6 groups (n = 3), the same tightening torque was applied, and a total of 1,000,000 time loading was applied at 30 degree angle to long axis with 50 N load. Repeated measures of ANOVA test (=.05) was used as statistics to evaluate the effect of repeated loading number on the removal torque. Independent t-test was used to evaluate the difference in removal torque after cyclic loading.

Results: The removal torque significantly decreased as the number of loading repetition increased (P<.05). In the 10 time repetition test, there was no significant difference between the prefabricated and customized implant abutment screw of the 3 implant system (P<.05). Also in the cyclic loading test, there was no significant difference between the prefabricated and customized implant abutment screw of the 3 implant system (P<.05).

Conclusion: Within the limitation of this study, there was no significant difference in the removal torque between the prefabricated abutment screw and customized abutment screws.

Å°¿öµå

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Customized abutment screw;Prefabricated abutment screw;Removal torque;Dental implant;Screw loosening

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