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Effect of Vital Tooth Bleaching Agent on Dentin Bonding
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KMID : 0362320060310020079
Abstract
»ýÈ°Ä¡ ¹Ì¹éÁ¦¿Í ¾ËÄÝ Àüó¸® °úÁ¤ÀÌ »ó¾ÆÁú Á¢Âø¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÏ°íÀÚ ¹ß°ÅÄ¡ 55°³ÀÇ Ä¡°üºÎ ÇùÃø »ó¾ÆÁú¸é¿¡¼ $Opalescence^{(R)}$(Ultradent»ç ¹Ì±¹)·Î ¹Ì¹éó¸® ÈÄ Áï½Ã $One-step^{(R)}$ »ó¾ÆÁú Á¢ÂøÁ¦(Bisco»ç, ¹Ì±¹)¸¦ Àü óġÇÑ $Z-250^{(R)}$ º¹ÇÕ·¹Áø(3M-ESPE»ç, ¹Ì±¹) Á¢Âø±º, ¹Ì¹éó¸® 2ÁÖÈÄ ·¹Áø Á¢Âø±º, ¹Ì¹éó¸® ÈÄ 70% ¿¡Åº¿Ã 󸮱º, ±×¸®°í ¹Ì¹éó¸®ÇÏÁö ¾ÊÀº ´ëÁ¶±ºÀ¸·Î ³ª´©¾î ½ÇÇèÇÑ ´ÙÀ½ Àü´ÜÁ¢Âø°µµ¸¦ ÃøÁ¤ÇÏ°í 95% À¯ÀǼöÁØ¿¡¼ ÀÏ¿øº¯·®ºÐ¼®¹ýÀ¸·Î Åë°èºÐ¼® ÇÏ¿´´Ù. »ýÈ°Ä¡ ¹Ì¹éÁ¦°¡ »ó¾ÆÁú Á¢Âø·ÂÀ» ÇöÀúÈ÷ °¨¼Ò½ÃÄ×´Ù. ¹Ì¹éó¸® 2ÁÖ ÈÄ ·¹Áø Á¢Âø±ºÀº ¹Ì¹éó¸®ÇÏÁö ¾ÊÀº ´ëÁ¶±º°ú À¯ÀÇÇÑ Â÷ÀÌ°¡ ³ªÅ¸³ªÁö ¾Ê¾ÒÀ¸¸ç 70% ¿¡ÅºÀ» 󸮱ºÀº ¹Ì¹éó¸®ÇÏÁö ¾ÊÀº ´ëÁ¶±ºº¸´Ù´Â Á¢Âø·ÂÀÌ ³·¾ÒÀ¸³ª, ¹Ì¹éó¸® 2ÁÖ ÈÄ ·¹Áø Á¢Âø±º°ú´Â Â÷ÀÌ°¡ ¾ø°í Áï½Ã Á¢Âø±ºº¸´Ù´Â ³ôÀº Á¢Âø°µµ¸¦ ³ªÅ¸³»¾ú´Ù. µû¶ó¼ ÀÓ»ó¿¡¼ Ä¡¾Æ¹Ì¹é ÈÄ Áï½Ã ·¹Áø¼öº¹À» ÇÒ °æ¿ì, ¿¡Åº¿Ã·Î Àüó¸®ÇÏ¸é »ó¾ÆÁú¿¡¼ ·¹Áø Á¢Âø·ÂÀ» ȸº¹ÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î »ç·áµÈ´Ù.
To evaluate the effect of vital tooth bleaching agent and alcohol pretreatment on dentin bonding, flat dentin windows were produced on the buccal side of the crowns of fifty-five extracted, human premolars. A bleaching gel, $Opalescence^{(R)}$ with 10% of carbamide peroxide (Ultradent Product, USA) was daily applied on the teeth of three experimental groups for six hours for 10 consecutive days, while teeth of a control group were not bleached. After 6 hours of bleaching gel application the specimens were washed and stored in saline until the next day application. After application of $One-step^{(R)}$ dentin bonding agent (Bisco, USA), $Z-250^{(R)}$ resin (3M-ESPE, USA) was bonded to dentin with a mount jig. Shear bond strength was measured with an Instron machine (Type 4202, Instron Corp., USA) after 24 hours. The results were analyzed using one-way ANOVA and Duncan¡¯¡¯s multiple range test at p < 0.05. Immediate bonding group showed significantly lower bond strength than un-bleached control group (p < 0.05). Ethanol-treated group showed significantly higher bond strength compared to immediate bonding group (p < 0.05). However, the bond strength of the ethanol treatment group was lower than that of the un-bleached control group (p < 0.05). There were no significant difference in shear bond strength between the 2-week delayed bonding group and the ethanol-treated group (p > 0.05) and between delayed bonding group and un-bleached control group (p > 0.05). In the condition of the present study. it seems that alcohol pretreatment after bleaching procedure can reduce the adverse effect of vital bleaching agent on dentin bonding.
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»ýÈ°Ä¡ ¹Ì¹é¼ú;¿¡Åº¿Ã;»ó¾ÆÁú Á¢Âø;Àü´Ü °áÇÕ°µµ;Vital bleaching;Carbamide peroxide;Ethanol;Dentin bonding;Shear bond strength
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