Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

NaOClÀÇ Àû¿ë ÈÄ Ä¡¼ö°­ »ó¾ÆÁú¿¡ ´ëÇÑ °áÇÕ°­µµÀÇ º¯È­¿Í Sodium Ascorbate¿¡ ÀÇÇÑ È¯¿ø È¿°ú

CHANGES IN ¥ì-TBS TO PULP CHAMBER DENTIN AFTER THE APPLICATION OF NAOCL & REVERSAL EFFECT BY USING SODIUM ASCORBATE

´ëÇÑÄ¡°úº¸Á¸ÇÐȸÁö 2009³â 34±Ç 6È£ p.515 ~ 525
±Ç¼ö¹Ì, ±èűÕ, À¯¹Ì°æ, À̱¤¿ø,
¼Ò¼Ó »ó¼¼Á¤º¸
±Ç¼ö¹Ì ( Kwon Su-Mi ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
±èűՠ( Kim Tae-Gun ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
À¯¹Ì°æ ( Yu Mi-Kyung ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
À̱¤¿ø ( Lee Kwang-Won ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç

Abstract

º» ¿¬±¸¿¡¼­´Â Ä¡¼ö°­ÀÌ °³¹æµÈ ±Ù°ü¿Íµ¿¿¡ 5.25% NaOCl ¿ë¾×À» °¢°¢ ´Ù¸¥ ½Ã°£ µ¿¾È Àû¿ë½ÃŲ µÚ Á¢Âø·¹Áø¿¡ ÀÇÇÑ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµÀÇ º¯È­¸¦ ÃøÁ¤ÇÏ¿´À¸¸ç, 10% sodium ascorbate¸¦ NaOCl ¿ë¾×¿¡ ÀÏÁ¤½Ã°£ ³ëÃâ½ÃŲ »ó¾ÆÁú¿¡ ´Ù½Ã 10ºÐ µ¿¾È Àû¿ëÇÏ¿© °áÇÕ°­µµ¿¡ ¹ÌÄ¡´Â È¿°ú¸¦ ¿¬±¸ÇÏ°íÀÚ ÇÏ¿´´Ù. ¿¬±¸°á°ú º» ½ÇÇè¿¡¼­ »óºÎ Ä¡¼ö°­ »ó¾ÆÁú°ú ÇϺΠġ¼ö°­ »ó¾ÆÁú¿¡ ´ëÇÑ °áÇÕ°­µµ´Â ¸ðµç ½ÇÇ豺³»¿¡¼­ À¯ÀÇÇÑ Â÷ÀÌ(P>0.05)¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. 5.25% NaOCl ¿ë¾×À» Àû¿ëÇÏÁö ¾Ê°í Ä¡¼ö°­ »ó¾ÆÁú¿¡ Á¢Âø½ÃŲ ´ëÁ¶±º¿¡ ºñÇØ 20ºÐ°£ Àû¿ë½ÃŲ ½ÇÇ豺¿¡¼­´Â °áÇÕ°­µµÀÇ °¨¼Ò°¡ ÃÊ·¡µÇ¾úÀ¸³ª Åë°èÀûÀÎ À¯ÀǼº(P>0.05)Àº ¾ø¾ú´Ù. ±×·¯³ª 5.25% NaOCl ¿ë¾×À» 40ºÐ°ú 80ºÐ µ¿¾È Ä¡¼ö°­ »ó¾ÆÁú¿¡ Àû¿ë½ÃŲ ½ÇÇ豺¿¡¼­´Â ´ëÁ¶±º¿¡ ºñÇØ À¯ÀÇÇÏ°Ô ³·Àº(P<0.05) °áÇÕ°­µµÀÇ º¯È­¸¦ ³ªÅ¸³»¾ú´Ù. 5.25% NaOCl ¿ë¾×À» 40ºÐµ¿¾È ±×¸®°í 10% sodium ascorbate¸¦ 10ºÐ°£ ó¸®ÇÑ ½ÇÇ豺¿¡¼­´Â À¯ÀÇÇÑ °áÇÕ°­µµÀÇ È¸º¹À» ³ªÅ¸³»¾ú´Ù. ±×·¯³ª 5.25% NaOCl ¿ë¾×À» 80ºÐ µ¿¾È ±×¸®°í 10% sodium ascorbate¸¦ 10ºÐ°£ Àû¿ëÇÑ ½ÇÇ豺¿¡¼­´Â ´ëÁ¶±º¿¡ ºñÇØ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ(P<0.05)¸¦ º¸ÀÓÀ¸·Î½á ¿©ÀüÈ÷ °áÇÕ°­µµ°¡ ȸº¹µÇÁö ¸øÇÏ°í ÀÖÀ½À» ³ªÅ¸³»¾ú´Ù. 5.25% NaOCl ¿ë¾×À» 5ºÐ°£ Àû¿ëÇÑ µÚ 10% sodium ascorbate¸¦ 10ºÐ°£ Àû¿ëÇÑ ½ÇÇ豺¿¡¼­´Â ¿ÀÈ÷·Á ´ëÁ¶±º¿¡ ºñÇØ ³ôÀº °áÇÕ°­µµ(P<0.05)¸¦ º¸¿©ÁÜÀ¸·Î½á ³ôÀº ȸº¹È¿°ú¸¦ ³ªÅ¸³»¾ú´Ù.

Clinical suggestion for the limitation of application time of NaOCl solution is needed to avoid large reductions in resin-dentin bond strength. The aim of this study was to measure the change of ¥ì-tensile bond strength after the various application time of 5.25% NaOCl solution to pulp chamber dentin in endodontic access cavity, and to evaluate the effect of 10% sodium ascorbate application for 10 min on bond strength after the treatment of 5.25% NaOCl solution. In this experiment, there were no statistical differences(p>0.05) in bond strengths between upper chamber dentin and lower chamber dentin. NaOCltreated group for 20 min did not show any significant decrease(p>0.05) in bond strength than non-treated control group. In contrast to that, bond strengths of NaOCl-treated groups for 40 & 80 min were significantly lower(p<0.05) than that of non-treated control group. 10% sodium ascorbate retreated group for 10 min after 5.25% NaOCl application for 40 min to chamber dentin showed the recovery of bond strength significantly. However, the bond strength of sodium ascorbate retreated group after 5.25% NaOCl application for 80 min was still significantly lower(p<0.05) compared to the non-treated control group, which means the reductions in resin-dentin bond strength were not fully reversed. On the contrary, sodium ascorbate retreated group after 5.25% NaOCl application for 5 min showed significantly higher(p<0.05) bond strength compared to the control group, which demonstrates its superior recovery effect. In SEM exminations of specimens retreated with 10% sodium ascorbate after NaOCl application for 40 & 80 min showed that resin tags were formed clearly and densely, but weakly in density and homogeneity of individual resin tag compared to the control specimen. [J Kor Acad Cons Dent 34(5):515-525, 2009]

Å°¿öµå

NaOCl;Ä¡¼ö°­ »ó¾ÆÁú;°áÇÕ°­µµ;Sodium Ascorbate;ȯ¿ø È¿°ú
¥ì-TBS to Pulp Chamber Dentin;NaOCl;Reversal Effect;Sodium Ascorbate

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

KCI