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Effects of surface treatment on the osseointegration potential of orthodontic mini-implant

Korean Journal of Orthodontics 2008³â 38±Ç 5È£ p.328 ~ 336
Àü¹Ì¼±, °­À±±¸, ¸ð¼º¼­, À̱ÙÇý, ±¹À±¾Æ, ±è¼ºÈÆ,
¼Ò¼Ó »ó¼¼Á¤º¸
Àü¹Ì¼± ( Jeon Mi-sun ) - °¡Å縯´ëÇб³ ÀÓ»óÄ¡°úÇдëÇпø
°­À±±¸ ( Kang Yoon-Goo ) - °¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç ±³Á¤°ú
¸ð¼º¼­ ( Mo Sung-Seo ) - °¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç ±³Á¤°ú
À̱ÙÇý ( Lee Keun-Hye ) - °¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç ±³Á¤°ú
±¹À±¾Æ ( Kook Yoon-Ah ) - °¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç ±³Á¤°ú
±è¼ºÈÆ ( Kim Seong-Hun ) - °¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç ±³Á¤°ú

Abstract

º» ¿¬±¸¿¡¼­´Â ±³Á¤ Ä¡·á ½Ã °ñ³» °íÁ¤¿øÀ¸·Î »ç¿ëµÇ´Â ±³Á¤¿ë ÀÓÇ÷£Æ®ÀÇ Ç¥¸éó¸® ¿©ºÎ°¡ °ñÀ¯Âø´É¿¡ À־ ¾î¶°ÇÑ È¿°ú¸¦ º¸ÀÌ´ÂÁö Á¦°ÅȸÀü·ÂÀÇ ÃøÁ¤À» ÅëÇØ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´À¸¸ç, ±×¿¡ µû¸¥ ±³Á¤·Â Àû¿ëÀÇ È®Àå°ú ÀÓ»óÀû ÀÇÀǸ¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù. ½ÇÇ豺Àº ºÐ»çó¸® ÈÄ »êºÎ½Ä(Sand-blasted Large grit, and Acid etched, SLA) Ç¥¸é ó¸®µÈ ±³Á¤¿ë ¹Ì´Ï ÀÓÇ÷£Æ®ÀÎ C-implant (Cimplant, Seoul, Korea)¸¦ »ç¿ëÇÏ¿´À¸¸ç ´ëÁ¶±ºÀº °°Àº µðÀÚÀÎÀÌÁö¸¸ Ç¥¸é 󸮸¦ ÇÏÁö ¾ÊÀº ÆòÈ°¸é C-implant¸¦ »ç¿ëÇÏ¿´´Ù. ½ÇÇ豺°ú ´ëÁ¶±ºÀ» °¢°¢ 2°³¾¿ 11¸¶¸®ÀÇ °¡Åä °æ°ñ¿¡ ½Ä¸³ÇÏ¿´°í ½Ä¸³ ÈÄ 6ÁÖ¿¡ °¡Å並 Èñ»ý½ÃÄÑ Á¦°ÅȸÀü·ÂÀ» ÃøÁ¤ÇÏ¿© t-test¸¦ ÅëÇÏ¿© µÎ ±ºÀÇ Á¦°ÅȸÀü·Â Â÷ÀÌÀÇ Åë°èÀû À¯ÀǼºÀ» ¾Ë¾Æº¸¾ÒÀ¸¸ç Á¶Á÷Ç¥º»À» ¸¸µé¾î Á¶Á÷¼Ò°ßÀ» °üÂûÇÏ¿´´Ù. ½ÇÇè°á°ú Á¦°ÅȸÀü·ÂÀº SLA ó¸®ÇÑ C-implant ±ºÀÌ ÆòÈ°¸é C-implant ±ºº¸´Ù Åë°èÀûÀ¸·Î À¯ÀǼº ÀÖ°Ô ³ôÀº °á°ú¸¦ º¸¿´´Ù (p £¼ 0.05). ÆòÈ°¸é C-implant ±ºÀÇ Æò±Õ Á¦°ÅȸÀü·Â °ªÀº 4.614 NcmÀÌ°í, SLA C-implant ±ºÀÇ Æò±Õ Á¦°ÅȸÀü·Â °ªÀº 6.286 Ncm·Î, SLA ±ºÀÌ ÆòÈ°¸é ±ºº¸´Ù 73% ´õ ³ôÀº Á¦°ÅȸÀü·Â¿¡ ´ëÇÑ ÀúÇ×¼ºÀ» ³ªÅ¸³»¾ú´Ù. ÀÌ»óÀÇ ¿¬±¸ °á°ú¿¡¼­ SLA Ç¥¸é󸮰¡ C-implantÀÇ °ñÀ¯Âø´ÉÀ» Áõ°¡½ÃÄ×À½À» ¾Ë ¼ö ÀÖ¾ú´Ù. µû¶ó¼­ Ç¥¸é ó¸®µÈ ±³Á¤¿ë ¹Ì´Ï ÀÓÇ÷£Æ®´Â ±âÁ¸ÀÇ ÀÓÇ÷£Æ®¿¡ ºñÇØ Á» ´õ °­ÇÑ Èû¿¡ ÀúÇ×ÇÒ ¼ö ÀÖÀ¸¸ç Å»¶ô·üÀ» ³·Ãâ ¼ö ÀÖÀ» °ÍÀ¸·Î »ý°¢µÈ´Ù. (´ëÄ¡±³Á¤Áö 2008;38(5):328-336)

Objective: The purpose of this study was to compare the torque resistance to removal of sandblasted large grit and acid etched (SLA) surface treated orthodontic mini-implants and smooth surface orthodontic mini-implants as well as performing histologic observations.

Methods: Two groups of custom screw shaped orthodontic mini-implants (C-implant, 1.8 mm outer diameter ¡¿ 9.5 mm length, Cimplant, Seoul, Korea) were designated. 22 SLA treated C-implants (SLA group) and 22 machined surface C-implants (machined group) were placed in the tibia metaphysis of 11 adult New Zealand white rabbits. Following a 6-week healing period, the rabbits were sacrificed. Subsequently, the C-implants were removed under reverse torque rotation with a digital torque measuring device and independent t-test was performed. Selected tissues were prepared for histologic observation.

Results: The SLA group presented a higher mean removal torque value (6.286 Ncm) than the machined group (4.491 Ncm) which was statistically significant (p £¼ 0.005). Histologic observation revealed a trend of more new bone formation in contact with the screw surface in the SLA group than the smooth group.

Conclusions: The results of this study suggested that SLA surface treatment can enhance the osseintegration potential for C-orthodontic mini-implants. (Korean J Orthod 2008;38(5):328-336)

Å°¿öµå

Ç¥¸é ó¸®;Á¦°ÅȸÀü·Â;°ñÀ¯Âø;±³Á¤¿ë ¹Ì´Ï ÀÓÇ÷£Æ®
Surface treatment;Removal torque;Osseointegration;Skeletal anchorage

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