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µÎ Á¾ÀÇ external hex implantÀÇ º¯¿¬°ñ Èí¼ö¿¡ °üÇÑ ¿¬±¸ : ¿¹ºñ¿¬±¸ (preliminary study)

Radiographic evaluation of marginal bone resorption around two types of external hex implants : preliminary study

´ëÇÑÄ¡°úº¸Ã¶ÇÐȸÁö 2008³â 46±Ç 2È£ p.169 ~ 174
ÀÌÁöÀº, ±è¼º±Õ, °ûÀ翵, Ç㼺ÁÖ, ÇÑÁ¾Çö,
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ÀÌÁöÀº ( Lee Ji-Eun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±è¼º±Õ ( Kim Seong-Kyun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
°ûÀ翵 ( Koak Jai-Young ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
Ç㼺ÁÖ ( Heo Seong-Joo ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
ÇÑÁ¾Çö ( Han Chong-Hyun ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¸ñÀû: Ä¡°ú ÀÓÇ÷£Æ® ÁÖÀ§ÀÇ º¯¿¬°ñ º¯È­´Â ÀÓÇ÷£Æ®ÀÇ ±â´ÉÀûÀÎ À¯Áö »Ó¸¸ ¾Æ´Ï¶ó ½É¹ÌÀû ¼º°øÀ» À§Çؼ­µµ Áß¿äÇÏ´Ù. º¯¿¬°ñÀÇ À¯Áö¸¦ À§ ÇÑ ÀÓÇ÷£Æ® µðÀÚÀÎÀÌ ¿¬±¸µÇ°í ÀÖ´Ù. À̹ø ¿¹ºñ ¿¬±¸´Â µÎ Á¾·ùÀÇ external hex implant ½Ã½ºÅÛ¿¡¼­ ÀÓÇ÷£Æ®ÀÇ »óºÎ ¹Ì¼¼ ³ª»ç»êÀÌ º¯¿¬ °ñ º¯È­·®¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÏ°íÀÚ ÇÑ´Ù.

Àç·á ¹× ¹æ¹ý: ÃÑ 24¸íÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î Branemark ÀÓÇ÷£Æ® ½Ä¸³±º (1±º, °ÅÄ£ Ç¥¸é ÀÓÇ÷£Æ®, 20°³)°ú ¿øÇöõÆ® ÀÓÇ÷£Æ® ½Ä¸³±º (2±º, ¹Ì¼¼³ª»ç»êÀ» °¡Áø °ÅÄ£ Ç¥¸é ÀÓÇ÷£Æ®, 20°³)À¸·Î ºÐ·ùÇÏ¿´´Ù. ±âÁØ ½ÃÁ¡ (ÀÓÇ÷£Æ® ºÎÇÏ)°ú ºÎÇϸ¦ °¡ÇÑ 1³â µÚ ÀÓ»óÀû, ¹æ»ç¼±ÇÐÀû °Ë»ç¸¦ ½ÃÇàÇÏ¿´´Ù. UTHSCSA Image ToolÀ» ÀÌ¿ëÇÏ¿© ÀÓÇ÷£Æ®-º¸Ã¶ °æ°èºÎ·ÎºÎÅÍ º¯¿¬°ñ ³ôÀÌ º¯È­·®À¸·Î °èÃøÇÏ¿´´Ù. °èÃøÄ¡´Â SAS ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© three-level ANCOVA·Î Åë°èó¸® ÇÏ¿´´Ù.

°á°ú: ±âÁØ ½ÃÁ¡°ú ºñ±³ÇÏ¿© 1³â ±â´É ÈÄ, µÎ ±×·ì °£ÀÇ º¯¿¬°ñ ¼Ò½Ç º¯È­·®¿¡ À־ Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù (P<0.05). 1±º ÀÇ Æò±Õ º¯¿¬°ñ ³ôÀÌ º¯È­·®Àº 0.83¡¾0.31mm, 2±º¿¡ À־´Â 0.44¡¾0.36mm À̾ú´Ù. ¹Ì¼¼³ª»ç»êÀ» °¡Áø °ÅÄ£ Ç¥¸é ÀÓÇ÷£Æ®°¡ ¹Ì¼¼³ª »ç»êÀ» °¡ÁöÁö ¾ÊÀº °ÅÄ£ Ç¥¸é ÀÓÇ÷£Æ® º¸´Ù ´õ ÀûÀº º¯¿¬°ñ ¼Ò½Ç º¯È­·®À» º¸¿´´Ù.

°á·Ð: ¹Ì¼¼³ª»ç»êÀ» °¡Áø °ÅÄ£ Ç¥¸é ÀÓÇ÷£Æ®°¡ ±â´ÉÀû ºÎÇÏ ÈÄ º¯¿¬°ñ ³ôÀ̸¦ À¯ÁöÇϴµ¥ ÀÖ¾î ´õ À¯¸®ÇÑ µðÀÚÀÎÀ¸·Î º¸ÀδÙ.

Statement of problem: Changes of the marginal bone around dental implants have significance not only for the functional maintenance but also for the esthetic success of the implant. It was proposed that bone-retention elements such as microthreads at the coronal part of implant might help maintain the marginal bone level.

Purpose: This study was designed to evaluate the effect of microthread configuration within the marginal coronal portion of the implant fixture at the marginal bone changes after loading around two different external hex implants.

Material and methods: Twenty-four patients were included and randomly assigned to treatment with Branemark system implants (Group 1, rough-surfaced implants, n=20) and Oneplant system implants (Group 2, rough-surfaced neck with microthreads, n=20). Clinical and radiographic examinations were conducted at baseline (implant loading) and 1 year postloading. Data analysis was performed by the SAS statistical package version 9.1.3 (SAS Institute, Cary, NC, USA) and the final model was calculated by the MIXED procedure (three-level ANCOVA) for marginal bone change of each test group at baseline and 1 year follow-up.

Results: Comparing to baseline, significant differences were noted in marginal bone level changes for the 2 groups at 1 year follow-up (P<0.05). Group 1 had a mean crestal bone level changes of 0.83¡¾0.31mm; Group 2 had a mean crestal bone level changes of 0.44¡¾0.36mm. Rough-surfaced with microthreads implants showed significantly less marginal bone loss than rough surfaced neck without microthread implants.

Conclusion: A rough surface with microthreads at the implant was beneficial design to maintain the marginal bone level against functional loading.

Å°¿öµå

º¯¿¬°ñ ³ôÀÌ;¹Ì¼¼³ª»ç»ê;°ÅÄ£ Ç¥¸é
Marginal bone level;Microthreads;Rough surface

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