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The influence of intentional mobilization of implant fixtures before osseointegration

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Á¶ÁøÇö ( Cho Jin-Hyun ) - °æºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç
Á¶±¤Çå ( Jo Kwang-Hun ) - °æºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç
Á¶¼º¾Ï ( Cho Sung-Am ) - °æºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç
À̱Ժ¹ ( Lee Kyu-Bok ) - °æºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç
ÀÌûÈñ ( Lee Cheong-Hee ) - °æºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¿¬±¸ ¸ñÀû: ÀÌ ³í¹®Àº ÀÓÇöõÆ® °íÁ¤Ã¼°¡ °ñÀ¶ÇÕÀÌ ÀÌ·ç¾îÁö±âÀü ÀÇ¿ø¼º µ¿¿ä°¡ ÀÖÀ» °æ¿ì °ñ°áÇÕ¿¡ ¾î¶² ¿µÇâÀ» ¹ÌÄ¡´ÂÁö¸¦ ¾Ë¾Æ º¸°íÀÚ ÇÑ´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ½ÇÇè¿¡ »ç¿ëÇÑ ÀÓÇöõÆ®´Â Á÷°æ 3.73 mm, ±æÀÌ 4 mmÀÇ ¼ø¼öÇÑ Å¸ÀÌŸ´½°ú RBM (MegaGen??: Ca-P) ó¸®µÈ ÀÓÇöõÆ®(Grade IV)¸¦ »ç¿ëÇÏ¿´´Ù. ¸ö¹«°Ô 3.5 kg ÀÌ»óÀÇ Åä³¢(Female, New Zealand White)ÀÇ ÇÑÂÊ °æ°ñ¿¡ 2°³¾¿ ¾çÂÊ ´Ù¸®¿¡ ÀÓÇöõÆ®¸¦ ½Ä¸³ÇÏ¿© ¸ðµÎ 80°³ÀÇ ÀÓÇöõÆ®°¡ ½Ä¸³µÇ¾ú´Ù. ºñƲ¸² Á¦°Å·Â(Removal torque)ÀÇ °£°Ý¿¡ µû¶ó ±×·ì I (6ÁÖ), ±×·ì II (4ÀÏ + 6ÁÖ), ±×·ì III (4ÀÏ + 1 ÁÖ + 6ÁÖ), ±×·ì IV (1 ÁÖ + 6 ÁÖ), ±×·ì V (1ÁÖ + 1 ÁÖ + 6 ÁÖ), ±×·ì VI (2 ÁÖ + 6 ÁÖ), ±×·ì VII (2 ÁÖ+ 1 ÁÖ + 6 ÁÖ), ±×·ì VIII (3 ÁÖ + 6 ÁÖ), ±×·ì IX (3 ÁÖ + 1ÁÖ + 6 ÁÖ), ±×·ì X (10ÁÖ)À¸·Î 10°³ÀÇ ±×·ìÀ¸·Î ³ª´©¾ú´Ù. º» ½ÇÇè¿¡¼­ ±×·ì I°ú±×·ìX°¡ ´ëÁ¶±ºÀ̸ç, ºñƲ¸² Á¦°Å·ÂÀº digital torque gauze (Mark-10, USA)¸¦ »ç¿ëÇÏ¿© 6ÁÖ¿Í 10ÁÖ¿¡ ÃøÁ¤ÇÏ¿´´Ù. ½ÇÇ豺¿¡¼­´Â ¸¶Áö¸· ºñƲ¸² Á¦°Å·ÂÀ» ÃøÁ¤Çϱâ Àü¿¡ ÀÇ¿ø¼º µ¿¿ä¸¦ °¡ÇÏ¿© ÇÑ ¹ø ȤÀº µÎ ¹ø ºñƲ¸² Á¦°Å·ÂÀ» ÃøÁ¤ÇÏ¿© ±× ¼öÄ¡¸¦
±â·ÏÇÏ¿´´Ù. ±× ÈÄ, ´ëÁ¶±ºÀ» Á¦¿ÜÇÏ°í ºñƲ¸² Á¦°Å·ÂÀ» ÃøÁ¤ÇÑ ÀÓÇöõÆ®´Â °¡±ÞÀû ¿ø·¡ÀÇ À§Ä¡·Î µ¹·Á ³õ°í ºÀÇÕÀ» ÇÏ¿´´Ù. ¸ðµç ½ÇÇ豺Àº ¸¶Áö¸· ºñƲ¸² Á¦°Å·Â ÃøÁ¤Àü±îÁö 6ÁÖ°£ÀÇ Ä¡À¯±â°£À» ÁÖ¾úÀ¸¸ç, ¸¶Áö¸· ºñƲ¸² Á¦°Å·ÂÀº ½ÇÇ豺 ù ¹ø° ¶Ç´Â µÎ ¹ø° ºñƲ¸² Á¦°Å·Â°ª°ú ºñ±³ÇÏ¿© °á°ú¸¦ ºÐ¼®ÇÏ¿´´Ù.

°á°ú: ¸¶Áö¸· ºñƲ¸² Á¦°Å·Â ÃøÁ¤°ª¿¡¼­ ±×·ìX (10ÁÖ)ÀÇ °ªÀÌ ´ëÁ¶±ºÀÎ ±×·ì I (6ÁÖ)ÀÇ °ªº¸´Ù ³ô¾ÒÀ¸³ª, Åë°èÀûÀ¸·Î´Â À¯ÀÇÇÏÁö ¾Ê¾Ò´Ù. ½ÇÇ豺°ú ´ëÁ¶±º »çÀÌÀÇ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(P>.05). ù ¹ø° ºñƲ¸² Á¦°Å·Â ÃøÁ¤Ä¡¿¡¼­, ½ÇÇ豺(4ÀÏȤÀº1ÁÖ)¿¡¼­ ´Ù¸¥ ½ÇÇ豺(2ÁÖȤÀº3ÁÖ)ÀÇ ¼öÄ¡º¸´Ù ³·Àº °ªÀ» º¸¿´´Ù. Ä¡À¯±â°£¿¡ µû¸¥ °¢ ½ÇÇ豺ÀÇ ºñ±³¿¡¼­, ÃÖÁ¾ ºñƲ¸² Á¦°Å·Â °ªÀÌ Ã¹ ¹ø° ºñƲ¸² Á¦°Å·Â °ª º¸´Ù ÇöÀúÈ÷ ³ôÀº °ªÀ» º¸¿´´Ù.

°á·Ð: °ñÀ¯ÂøÀÌ Çü¼ºµÇ±â Àü ÇÑ ¹ø ¶Ç´Â µÎ ¹ø ÀÇ¿ø¼ºÀ¸·Î µ¿¿ä´Â, ¸¸¾à ÃæºÐÇÑ Ä¡À¯±â°£À» °¡Áö°Ô µÉ °æ¿ì ÀÓÇöõÆ®ÀÇ °ñÀ¯Âø¿¡ ¿µÇâÀ» ÁÖÁö ¾Ê´Â´Ù.

Purpose: The purpose of this study was to investigate the influence of mobilization on bone-implant interface prior to osseointegration of fixtures.

Materials and Methods: The experimental implants (3.75 mm in diameter, 4.0 mm in length) were made of commercially pure (Grade IV) titanium, and were treated with RBM (MegaGen??: Ca-P). The 80 implants (two in each tibia) were inserted into the monocortical tibias of 20 rabbits which each weighed more than 3.5 kg (Female, New Zealand White). According to the removal torque interval, the groups were divided into 10 groups, Group I (6 wks), Group II (4 days + 6 wks), Group III (4 days + 1 wk + 6 wks), Group IV (1 wk + 6 wks), Group V (1 wk + 1 wk + 6 wks), Group VI (2 wks + 6 wks), Group VII (2 wks+ 1 wk + 6 wk), Group VIII (3 wks + 6 wks), Group IX (3 wks + 1 wk + 6 wks) and Group X (10 wks). The control groups were Group I and X, the removal torque was measured at 6 wks and 10 wks with a digital torque gauge (Mark-10, USA). In the experimental groups, the removal torque was given once or twice before the final removal torque and the value was measured each time. After which, the implants were put back where they had been except the control groups. All the experimental groups were given a final healing time (6 wks) before the final removal torque test, in which values were compared with the control groups and the 1st and/or 2nd removal torque values in each experimental group.

Results: In the final removal torque tests, the removal torque value of Group X (10 wks) was higher than that of Group I (6 wks) in the control groups but not statistically different. There were no significant differences between the experimental groups and control groups (P>.05). In the first removal torque comparison, the experimental groups (4 days or 1 wk) values were significantly lower than the other experimental groups (2 wks or 3 wks). In the comparison of each experimental group according to healing time, the final removal torque value was significantly higher than the 1st torque test value.

Conclusion: Once or twice mobilization of fixture prior to osseointegration did not deter the final bone to implant osseointegration, if sufficient healing time was given.

Å°¿öµå

°ñÀ¯Âø; ÀçÀ¯Âø; ºñƲ¸² Á¦°Å·Â
Osseointegration; Reintegration; Removal torque test

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