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The effects of a sealant resin on enamel demineralization in orthodontic bracket bonding

Korean Journal of Orthodontics 2005³â 35±Ç 1È£ p.43 ~ 50
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Abstract

º» ¿¬±¸´Â ±³Á¤¿ë ºê¶óÄÏ ºÎÂø ½Ã »ç¿ëµÇ´Â Á¢ÂøÁ¦ Áß two paste type ÀÇ ½Ç·±Æ® ·¹Áø Àû¿ëÀÌ ¹ý¶ûÁú Żȸ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸°íÀÚ ½ÃÇàµÇ¾ú´Ù. °ÇÀüÇÑ Ç¥¸éÀ» °¡Áø ¹ßÄ¡µÈ ¼ÒÀÇ »ó¾ÇÀýÄ¡ 48°³¸¦ ½ÇÇèÀç·á·Î ÇÏ¿© ¹ý¶ûÁú ó¸® ¹æ¹ý¿¡ µû¶ó 4°³ ±ºÀ¸·Î ºÐ·ùÇÏ°í °¢ ±ºÀ» Phase ¥±^(£¿) (Reliance, Itasca, ¥²) ¸¦ ÀÌ¿ëÇÏ¿© Ä¡¸éó¸® ÇÏ¿´´Ù. ´ëÁ¶±ºÀ¸·Î¼­ ¾Æ¹«·± 󸮸¦ ÇÏÁö ¾ÊÀº Group 1, 37% ÀλêÀ¸·Î 39ÃÊ°£ »êºÎ½ÄÀ» ½ÃÇàÇÑ Group 2, »êºÎ½Ä ÈÄ ½Ç·±Æ® A¿Í B¸¦ µ¿·®À¸·Î È¥ÇÕÇÏ¿© µµÆ÷ÇÑ Group 3°ú »êºÎ½Ä ÈÄ ½Ç·±Æ®¸¦ µµÆ÷ÇÏ°í ·¹Áø ÆäÀ̽ºÆ® A¿Í B¸¦ µ¿·®À¸·Î È¥ÇÕÇÏ¿© µµÆ÷ÇÑ Group 4·Î ºÐ·ùÇÏ¿© °¢ ±ºÀ» ÀΰøŻȸ¿ë¾×¿¡¼­ Żȸ½ÃŲ ´ÙÀ½ °øÃÊÁ¡ ·¹ÀÌÀú ÁÖ»çÇö¹Ì°æÀ» ÀÌ¿ëÇÏ¿© °¢°¢ÀÇ Å»È¸µÈ ±íÀ̸¦ ÃøÁ¤ÇÑ ÈÄ ºñ±³ÇÑ °á°ú, ŻȸµÈ ¹ý¶ûÁúÀÇ Æò±Õ ±íÀÌ´Â 47.4 §­ (Group 1), 61.8 §­ (Group 2), 13.9 §­ (Group 3), 8.2 §­ (Group 4) ·Î ³ªÅ¸³µ´Ù. »êºÎ½Ä ÈÄ ÀΰøŻȸ¿ë¾×¿¡ ³ëÃâµÇ´Â ±º(Group 2)Àº »êºÎ½Ä ¾øÀÌ ³ëÃâµÇ´Â ±º (Group 1) ¿¡ ºñÇØ Å»È¸µÈ ±íÀÌ°¡ ´õ ±íÀº °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç (p £¼0.55), ½Ç·±Æ® ·¹ÁøÀ» µµÆ÷ÇÑ ±º (Group 3) Àº »êºÎ½Ä ¾øÀÌ ³ëÃâµÇ´Â ±º (Group 1) À̳ª »êºÎ½Ä ÈÄ ³ëÃâµÇ´Â ±º (Group 2) ¿¡ ºñÇØ Å»È¸µÈ ¹ý¶ûÁú ±íÀÌ°¡ À¯ÀǼº ÀÖ°Ô °¨¼ÒÇÏ¿´´Ù (p £¼0.55). Á¢Âø·¹ÁøÀ¸·Î ºÎÂøµÈ ±º (Group 4) Àº ¹ý¶ûÁú Żȸ°¡ °ÅÀÇ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ÀÌ»óÀÇ ¿¬±¸°á°ú´Â ±³Á¤Áö·á ½Ã ¹ý¶ûÁú Żȸ °¡´É¼ºÀ» ÁÙÀ̱â À§Çؼ­ ºê¶óÄÏ ºÎÂø ½Ã ½Ç·±Æ® ·¹ÁøÀÇ µµÆ÷°¡ À¯¿ëÇÔÀ» ½Ã»çÇÏ¿´´Ù.

The purpose of this study was to evaluate the effects of a sealant resin on enamel demineralization in orthodontic bracket bonding. The forty eight extracted sound bovine teeth were subdivided into four groups and treated with Phase ¥±^(£¿) (Reliance, Itasca, ¥²) on the surface. Group 1 was not treated. Group 2 was acid etched with 37% phosphoric acid for 30 seconds. Group 3 was applied with sealant after acid etching. Group 4 was applied with resin paste after acid etching and sealant application. Each group was demineralized in artificial caries solution. Demineralized enamel depth was measured by confocal laser scanning microscopy. The results were as follows: the mean demineralized enamel depth was 47.4 §­ (Group 1), 61.8 §­ (Group 2), 13.9 §­ (Group 3), 8.2 §­ (Group 4) the demineralized enamel depth was increased in Group 2 than in Group 1 (p £¼ 0.05) the demineralized enamel depth was reduced in Group 3 than in Group1 and Group 2 with statistically significant differences (p £¼ 0.05) and demineralization in Group 4 was very little.
The results of the present study indicate that sealant application is useful for reducing enamel demineralization in orthodontic bracket bonding.

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½Ç·±Æ® ·¹Áø;¹ý¶ûÁú Żȸ;Sealant resin;Enamel demineralization

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