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¿°±âó¸®ÇÑ SLA Ç¥¸éÀÌ Ç¥¸é Ư¼º ¹× °ñ¸ðÀ¯»ç¼¼Æ÷ÀÇ ¹ÝÀÀ¿¡ ¹ÌÄ¡´Â ¿µÇâ

Effects of SLA surface treated with NaOH on surface characteristics and response of osteoblast-like cell

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¹ÚÁøö, ±èÁÖÇö, °­Àº¼÷, ·ùÀçÁØ, ÇãÁߺ¸,
¼Ò¼Ó »ó¼¼Á¤º¸
¹ÚÁøö ( Park Jin-Chul ) - °í·Á´ëÇб³ ÀÓ»óÄ¡ÀÇÇдëÇпø ½É¹Ìº¸Ã¶°ú
±èÁÖÇö ( Kim Joo-Hyeun ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç
°­Àº¼÷ ( Kang Eun-Sook ) - ÀÎÁ¦´ëÇб³ ÇØ¿î´ë¹éº´¿ø º¸Ã¶°ú
·ùÀçÁØ ( Ryu Jae-Jun ) - °í·Á´ëÇб³ ¾È¾Ïº´¿ø Ä¡°ú º¸Ã¶°ú
ÇãÁߺ¸ ( Huh Jung-Bo ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¸ñÀû: ±âÁ¸ÀÇ SLA Ç¥¸éÀ» ³ôÀº Ä£¼ö¼ºÀ» °¡Áö´Â Ç¥¸éÀ¸·Î °³ÁúÇÏ°íÀÚ NaOH¿¡ ħÀûÇÏ´Â ¹æ¹ýÀÌ SLA Ç¥¸é Çü»ó ¹× Ư¼º¿¡ ¾î¶² ¿µÇâÀ» ¹ÌÄ¡´ÂÁö ¾Ë¾Æº¸°í, °ñ¸ðÀ¯»ç¼¼Æ÷ÀÇ Áõ½Ä, ºÎÂø ¹× ºÐÈ­¿¡ ¾î¶² ¿µÇâÀ» ¹ÌÄ¡´ÂÁö ¾Ë¾Æº¸°íÀÚ °èȹµÇ¾ú´Ù.

Àç·á ¹× ¹æ¹ý: Machined surface (´ëÁ¶±º), SLA surface (SLA ±º), SLA¿¡ NaOH ó¸®ÇÑ Ç¥¸é(SLA/NaOH ±º)ÀÇ °¢ ½ÃÆíÀ» Á¦Á¶ÇÏ°í Ä£¼ö¼ºÀ» ±Ø´ëÈ­ÇÑ SLA/NaOH ±ºÀÇ Ç¥¸é Ư¼ºÀ» Æò°¡Çϱâ À§ÇØ Ç¥¸é¼ººÐ(XPS), Ç¥¸é °ÅÄ¥±â, Ç¥¸é Á¢ÃË°¢ µîÀ» Æò°¡ÇÏ¿´´Ù. ±× ÀÌÈÄ MG-63 ¼¼Æ÷ ¹è¾ç ÈÄ À̹ø ½ÇÇè¿¡¼­ ¸¸µç Ç¥¸éµéÀÌ ¼¼Æ÷µ¶¼ºÀ» °¡Áö´ÂÁö¸¦ Æò°¡ÇÏ°í, WST assay¸¦ ÅëÇÏ¿© ¼¼Æ÷ Áõ½Ä, F-actin ¿°»öÀ» ÅëÇÏ¿© ¼¼Æ÷ÀÇ ºÎÂøÇüŸ¦ °üÂûÇÏ¿´´Ù. ÀÌ ÈÄ ALP assay¸¦ ÅëÇÏ¿© ¼¼Æ÷ ºÐÈ­¸¦ Æò°¡ÇÏ¿´´Ù. °¢ ±º°£ Åë°èÃøÁ¤À» À§ÇØ ANOVA ÈÄ ´ÙÁߺñ±³¸¦ ÇÏ¿´´Ù(P<.05).

°á°ú: SLA/NaOH ±ºÀÇ Á¢ÃË°¢Àº 5.59 ¡¾ 1.13µµ¿´´Ù. ¸ðµç ±ºµéÀº MG-63 ¼¼Æ÷¿¡ ´ëÇØ ¼¼Æ÷µ¶¼ºÀ» °¡ÁöÁö ¾Ê¾Ò´Ù. ¼¼Æ÷ ºÎÂø Æò°¡¿¡¼­ SLA/NaOH ±º¿¡¼­ °¡Àå ³ôÀº ºÎÂø Á¤µµ¸¦ º¸¿´°í(P<.05), Machined ±º°ú SLA ±º¿¡¼­µµ Ç¥¸é °ÅÄ¥±â°¡ ³ôÀº SLA±º¿¡¼­ ´õ ³ôÀº ¼¼Æ÷ ºÎÂøÁ¤µµ¸¦ È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù(P<.05). ¹è¾ç 7ÀϱîÁö ¸ðµç ±º¿¡¼­ MG-63 ¼¼Æ÷ÀÇ Áõ½ÄÀÌ Á¡Â÷ Áõ°¡ÇÏ¿´´Ù. ¸ðµç ±º¿¡¼­ 3ÀÏ°ú 7ÀÏ¿¡ ¼¼Æ÷ÀÇ Áõ½Ä¿¡¼­ À¯ÀÇÇÒ ¸¸ÇÑ Â÷ÀÌ°¡ º¸¿´°í, SLA/NaOH ±º¿¡¼­ °¡Àå ³ôÀº ¼¼Æ÷Áõ½ÄÀ» º¸¿´´Ù. ALP È°¼ºµµ´Â 7ÀÏ¿¡¼­´Â ¼¼ ±º »çÀÌ¿¡ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ÇÏÁö¸¸ 14ÀÏ¿¡´Â SLA/NaOH ±ºÀÌ À¯ÀǼº ÀÖ´Â Áõ´ë¸¦ º¸¿´´Ù(P<.05).

°á·Ð:º» ¿¬±¸¸¦ ÅëÇÏ¿© NaOH¸¦ ó¸®ÇÏ´Â ¼öÈ­¹æ½ÄÀ» ÅëÇØ SLA Ç¥¸éÀ» º¯Çü½ÃÅ´À¸·Î¼­ ¼¼Æ÷ÀÇ ºÎÂø, Áõ½Ä ¹× ºÐÈ­¸¦ ÃËÁø½ÃÄÑ ÀÓÇöõÆ®ÀÇ °ñÀ¯ÂøÀ» ÁõÁø½Ãų ¼ö ÀÖ´Â °¡´É¼ºÀ» È®ÀÎÇÏ¿´´Ù.

PURPOSE. The purpose of this study was to evaluate the surface characteristics and response of osteoblast-like cell at SLA surface treated with NaOH.

MATERIALS AND METHODS. Three kinds of specimens were fabricated for the experiment groups. Control group was a machined surface, SLA group was a conventionally SLA treated surface, and SLA/NaOH gorup was SLA surface treated with NaOH. To evaluate the surface characteristics, the surface elemental composition (XPS), surface roughness and surface contact angle were evaluated in each group. And the cytotoxicity, cell adhesion, cell proliferation and ATP activity of osteoblast-like cells (MG-63 cells) were compared in each group for evaluatation of the cell responses. Statistical comparisons between groups were carried out via one-way ANOVA using the SPSS software (SPSS Inc., Chicago, USA), and then performed multiple comparisons. The differences were considered statistically significant at P<.05.

RESULTS. SLA surface treated with NaOH (SLA / NaOH group) was changed to hydrophilic surface. All groups did not show the cytotoxicity to the MG-63. In cell adhesion studies, SLA / NaOH group showed the higher degree of adhesion than anothers (P<.05), Up to 7 days of incubation, the proliferation was showed the increasing tendency in all groups but SLA / NaOH group showed the highest cell proliferation between the three groups (P<.05). At 7 days of incubation, there was no difference in ALP activities between the three groups, but at 14 days, SLA / NaOH group showed significant increase in ALP activities (P<.05).

CONCLUSION. In this study, SLA surface treated with NaOH promoted cell adhesion, proliferation and differentiation. It means that SLA/NaOH group is possible to promote osseointegration of implants

Å°¿öµå

SLA Ç¥¸é; ¼ö»êÈ­³ªÆ®·ý; Ä£¼ö¼º; MG-63 ¼¼Æ÷; ¼¼Æ÷¹è¾ç
SLA surface; NaOH; hydrophilic; MG-63 cell; Cell culture

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