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The Effect of Surface Treat`ment on Bond Strength of Polycarbonate Bracket

Korean Journal of Orthodontics 2006³â 36±Ç 5È£ p.331 ~ 338
±è¼®ÇÊ, ±è³â°æ, ÀÌÇöÁ¤, ȲÇý³²,
¼Ò¼Ó »ó¼¼Á¤º¸
±è¼®ÇÊ ( Kim Seok-Pil ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç
±è³â°æ ( Kim Nyeon-Kyeong ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ Ä¡ÀÇÇבּ¸¼Ò
ÀÌÇöÁ¤ ( Lee Hyun-Jung ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ Ä¡ÀÇÇבּ¸¼Ò
ȲÇý³² ( Hwang Hye-Nam ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç

Abstract

º» ¿¬±¸´Â Æú¸®Ä«º¸³×ÀÌÆ® ºê¶óÄÏ ºÎÂø ½Ã Ç¥¸é󸮰¡ °áÇÕ°­µµ¸¦ ÁõÁø½ÃÅ°´ÂÁö ¾Ë¾Æº¸°íÀÚ ½ÃÇàµÇ¾ú´Ù. ¼ÒÀÇ ÇÏ¾Ç ÁßÀýÄ¡¸¦ Æ÷¸ÅÇÏ¿© ¸¸µç 100°³ÀÇ ½ÃÆí¿¡ ±¤ÁßÇÕÇü ·¹Áø Á¢ÂøÁ¦¸¦ ÀÌ¿ëÇÏ¿© Æú¸®Ä«º¸³×ÀÌÆ® ºê¶óÄÏ(Alice, ±¤¸í µ¥ÀÌÄÞ, ´ëÇѹα¹)À» ºÎÂøÇÏ¿´´Ù. ´ëÁ¶±ºÀÇ °æ¿ì, Ç¥¸éó¸® ¾øÀÌ ºÎÂøÇÑ ¹Ý¸é, ½ÇÇ豺ÀÇ °æ¿ì »÷µåºí¶ó½ºÆà ó¸®ÇÑ °æ¿ì, plastic conditioner ó¸®ÇÏ¿© ºÎÂøÇÑ °æ¿ì, ±×¸®°í »÷µåºí¶ó½ºÆðú ÇÔ²² plastic conditioner ó¸®ÇÑ °æ¿ì·Î ±¸ºÐÇÏ¿© Á¢ÂøÇÏ¿´´Ù. ¸¸´É½ÃÇè±â¸¦ ÀÌ¿ëÇÏ¿© Àü´Ü°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ°í ÆÄÀý¾ç»óÀ» ºñ±³ ºÐ¼®ÇÑ °á°ú, plastic conditioner³ª »÷µåºí¶ó½ºÆÃÀ¸·Î Ç¥¸é󸮸¦ ½ÃÇàÇÑ °æ¿ì Ç¥¸é󸮸¦ ½ÃÇàÇÏÁö ¾ÊÀº °æ¿ì¿¡ ºñÇØ ³ôÀº °áÇÕ°­µµ¸¦ º¸¿´´Ù (p < 0.001). »÷µåºí¶ó½ºÆðú plastic conditioner¸¦ ¸ðµÎ ó¸®ÇÑ °æ¿ì´Â »÷µåºí¶ó½ºÆø¸À̳ª Plastic conditioner¸¸ ó¸®ÇÑ °æ¿ìº¸´Ù ³ôÀº °áÇÕ°­µµ¸¦ º¸¿´À¸¸ç, ƯÈ÷ »÷µåºí¶ó½ºÆø¸ ó¸®ÇÑ °æ¿ì¿¡ ºñÇؼ­´Â Åë°èÀû À¯ÀÇÂ÷¸¦ º¸¿´´Ù (p < 0.05). ÀÌ»óÀÇ ¿¬±¸°á°ú´Â Æú¸®Ä«º¸³×ÀÌÆ® ºê¶óÄÏ ºÎÂø ½Ã °áÇÕ°­µµ ÁõÁøÀ» À§Çؼ­ º£À̽ºÀÇ Ç¥¸é󸮰¡ ÇÊ¿äÇÏ¸ç »÷µåºí¶ó½ºÆà ÈÄ plastic conditioner µµÆ÷°¡ °¡Àå È¿°úÀûÀÓÀ» º¸¿©ÁÖ¾ú´Ù

The purpose of this study was to evaluate whether the bond strength of polycarbonate brackets can be increased through surface treatment. Methods: One hundred polycarbonate brackets (Alice) were bonded to bovine incisors with light-cured adhesive. The bracket bases were treated with one of three methods; sandblasting, plastic conditioner application, and combined treatment with sandblasting and plastic conditioner. The brackets without any suraace treatment served as the control. The shear bond strength was tested with a universal testing machine, and failure pattern was assessed with the adhesive remnant index. Results: The shear bond strength in all experimental groups was higher than that of the control group (p < 0.001). The group treated with plastic conditioner after sandblasting showed statistically higher shear bond strength than the sandblasting only group to (p < 0.05). The group treated with plastic conditioner after sandblasting showed higher shear bond strength than plastic conditioner only group, but the difference was not statistically significant. Conclusion: The above results suggest that the surface treatments of polycarbonate bracket is mandatory to improve bond strength, and the most effective method is an application of plastic conditioner after sandblasting.

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Æú¸®Ä«º¸³×ÀÌÆ® ºê¶óÄÏ;Ç¥¸éó¸®;°áÇÕ°­µµ
Polycarbonate bracket;Surface treatment;Bond strength

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