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A STUDY ON THE BONDING OF COMPOMER TO DECIDUOUS DENTIN

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Abstract

Ä¡°ú ÀÓ»ó¿¡¼­ ³Î¸® »ç¿ëµÇ°í ÀÖ´Â ´ëÇ¥ÀûÀÎ ½É¹Ì¼º Á¢Âø ¼öº¹Àç·áÀÎ º¹ÇÕ ·¹Áø°ú ±Û¶ó½º ¾ÆÀ̾î³ë¸Ó ½Ã¸àÆ®ÀÇ ´ÜÁ¡À» º¸¿ÏÇÏ¿© °³¹ßµÈ °ÍÀ¸·Î ¾Ë·ÁÁø ÄÄÆ÷¸ÓÀÇ À¯Ä¡ »ó¾ÆÁú¿¡ ´ëÇÑ °áÇÕ·ÂÀ» Æò°¡ÇÏ°íÀÚ º» ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. Ä¡¾Æ ±³È¯À» ÀÌÀ¯·Î ÃÖ±Ù¿¡ ¹ß°ÅµÈ À¯±¸Ä¡ 144°³¸¦ ½ÇÇè´ë»ó Ä¡¾Æ·Î ¼±Á¤ÇÏ¿´À¸¸ç, ÀÌ Áß 120°³ÀÇ Ä¡¾Æ´Â Àü´Ü°­µµ ÃøÁ¤½ÇÇèÀ» À§ÇÏ¿© ³ª¸ÓÁö 24°³´Â °áÇÕ°è¸éÀÇ ÁÖ»çÀüÀÚ Çö¹Ì°æ °üÂûÀ» À§ÇØ ¹«ÀÛÀ§·Î ¹èºÐÇÏ¿´´Ù. °¢ Ä¡¾Æ¸¶´Ù 3¡¿4mmÀÇ »ó¾ÆÁúÀ» ³ëÃâġŲ ÈÄ ³»°æ 2.6mm, ³ôÀÌ 2.0mmÀÇ Å©±â·Î Á¦ÀÛµÈ Æú¸®¿¡Æ¿·» ÁÖÇüÀ» »ó¾ÆÁú Ç¥¸é¿¡ °íÁ¤½ÃŲ ´ÙÀ½ °¢°¢ÀÇ Àç·á¸¦ ¼³Á¤ Á¶°Ç¿¡ µû¶ó ÃæÀüÇÏ¿´´Ù. Àü´Ü°­µµ ½ÇÇèÇ¥º»Àº ¸¸´É ½ÃÇè±â¸¦ »ç¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´À¸¸ç, ÁÖ»ç ÀüÀÚÇö¹Ì°æ °üÂû Ç¥º» Áß 1/2Àº ´Ù½Ã ±Ù¿ø½ÉÀ¸·Î Àý´ÜÇÏ¿© ±× °áÇÕ°è¸éÀ» °üÂûÇÏ¿´À¸¸ç ³ª¸ÓÁö 1/2Àº Ä¡¾Æ¸¦ ¿ÏÀü Żȸ½ÃŲ ÈÄ »ó¾ÆÁú ³»¿¡ ħÅõµÈ Á¢ÂøÁ¦ÀÇ ÇüŸ¦ °üÂûÇÏ¿´´Ù. º» ½ÇÇèÀÇ °á°ú ¸ðµç ÄÄÆ÷¸Ó ±º(¥±~¥´)ÀÇ Àü´Ü°­µµ°¡ ±Û¶ó½º ¾ÆÀ̾î³ë¸Ó ±º(¥°)º¸´Ù ³ô°Ô ³ªÅ¸³µ°í, »ê ºÎ½ÄÀ» ½ÃÇàÇÑ ÄÄÆ÷¸Ó ±º(¥², ¥´)ÀÌ »ê ºÎ½ÄÀ» ½ÃÇàÇÏÁö ¾Ê°í ÃæÀüÇÑ ÄÄÆ÷¸Ó ±º(¥±, ¥³)¿¡ ºñÇØ ³ôÀº Àü´Ü°­µµ¸¦ º¸¿´À¸¸ç(p<.05) º¹ÇÕ ·¹Áø±º(¥µ)°úÀÇ ºñ°í¿¡¼­µµ Åë°èÇÐÀûÀÎ À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù(p>.05). ¼­·Î ´Ù¸¥ Á¢ÂøÁ¦¸¦ »ç¿ëÇÑ ÄÄÆ÷¸Ó±º °£ÀÇ ºñ±³¿¡¼­´Â ¸ðµÎ À¯ÀÇÂ÷°¡ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. »ó¾ÆÁú-¼öº¹Àç °è¸éÀÇ °üÂû°á°ú, »ê ºÎ½Ä ó¸®µÈ »ó¾ÆÁú°ú °áÇÕµÈ ÄÄÆ÷¸Ó ±ºÀÌ Ã³¸®ÇÏÁö ¾ÊÀº ±º¿¡ ºñÇØ ´Ù¼Ò µÎ²¨¿î ȥȭÃþÀÌ ±ÕÀÏÇÏ°Ô Çü¼ºµÇ¾î ÀÖ¾ú°í ·¹Áø µ¹±âµµ ´õ¿í Ä¡¹ÐÇÏ°Ô Ä§ÅõÇÑ ¾Ó»óÀ» º¸¿´´Ù. ÁÖ»ç Çö¹Ì°æ °üÂû¿¡¼­´Â »ê ºÎ½Ä ÇÏÁö ¾ÊÀº ÄÄÆ÷¸Ó ±ºÀÌ Àü¹ÝÀûÀ¸·Î ª°í ¾ãÀº ·¹Áø űװ¡ ºÒ±ÔÄ¢ÇÏ°Ô ºÐÆ÷µÇ¾î ÀÖ´Â ¾ç»óÀ» º¸ÀÎ ¹Ý¸é, »ê ºÎ½ÄÀ» ½ÃÇàÇÑ ±º°ú º¹ÇÕ ·¹Áø ±º¿¡¼­´Â ±½°í ±ä ·¹Áø ű׵éÀÌ ±ÔÄ¢ÀûÀ̸ç Ä¡¹ÐÇÑ ºÐÆ÷¸¦ ³ªÅ¸³Â´Ù. ÀÌ»óÀÇ °á°ú·Î ¹Ì·ç¾î »ó¾ÆÁúÀÇ »ê ºÎ½Ä °úÁ¤ÀÌ ÄÄÆ÷¸ÓÀÇ °áÇÕ·Â ÁõÁø¿¡ ±àÁ¤Àû ¿äÀÎÀ¸·Î ÀÛ¿ëÇÑ ¹Ý¸é »ó¾ÆÁú Á¢ÂøÁ¦ÀÇ Á¾·ù´Â º°´Ù¸¥ ¿µÇâÀ» ÁÖÁö ¾ÊÀº °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. °áÇÕ°­µµÀÇ ºñ±³¿¡¼­ ÄÄÆ÷¸Ó°¡ ±Û¶ó½º ¾ÆÀ̾î³ë¸Ó¿¡ ºñÇØ ¿ì¼öÇÑ °ÍÀ¸·Î Æò°¡µÇ¾î ¼Ò¾Æ ȯÀÚÀÇ À¯±¸Ä¡ ½É¹Ì ¼öº¹Àç·á·Î¼­ÀÇ °¡´É¼ºÀÌ ÀÔÁõµÇ¾ú´Ù.

The purpose of this study was to evaluate the bonding of compomer to deciduous dentin which is known to have been developed to improve the weak properties of glass ionomer cement and composite resin. 120 sound primary molars were used for the shear bond strength test and another 24 for the scanning electron microscopic evaluation. Each material was filled into polyethylene mold attached to exposed dentinal surface(3x4mm in diameter) of sample blocks. Shearbond strength was measured using Universal testing machine and data were analyzed statistically with Oneway ANOVA and Scheffe test. Scanning electron microscopic observation was performed in order to evaluate the pattern of distribution and penetration of resin tags and hybrid layer. Compomer groups(II-V) showed significantly higher bond strength values than glass ionomer group (I)(p<.05). Etching-compomer groups(III, V) showed the significantly higher bond strength than non-etching compomer groups(II, IV)(p(05), but slightly lower values than composite resin group(VI) with no statistically significant difference (p).05). No significantly different bond strength was found between compomer groups of different bonding system(p).05). Scanning electron micrographs showed more irregular distribution of short and thin resin tags in non-etching compomer groups(II, IV) whereas the more regular and intimate distribution of long and thick tags in etching compomer groups(III, V) and composite resin group(VI). The evaluation of hybrid layer also showed more regular formation of thicker layer in etching compomer groups(III, V). Based on the results of present study, the use of compomer as an esthetic restorative material for primary molars might be justified.

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ÄÄÆ÷¸Ó;Àü´Ü°áÇÕ°­µµ;·¹Áø ű×;»ó¾ÆÁú °áÇÕÁ¦;Compomer;Shear bond strength;Resin tag;Dentin bonding agent

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