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Effect of curing modes on micro-hardness of dual-cure resin cements

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À̱â´ö, ¹Ú¼¼Èñ, ±èÁø¿ì, Á¶°æ¸ð,
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À̱â´ö ( Lee Ki-Deok ) - À»ÁöÀÇ°ú´ëÇб³ ³»°úÇб³½Ç
¹Ú¼¼Èñ ( Park Se-Hee ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
±èÁø¿ì ( Kim Jin-Woo ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
Á¶°æ¸ð ( Cho Kyung-Mo ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç

Abstract

¿¬±¸¸ñÀû: º» ¿¬±¸´Â 3Á¾ÀÇ ÀÌÁßÁßÇÕ ·¹Áø½Ã¸àÆ®¿¡¼­ ÀÚ°¡ÁßÇÕ¹ý°ú ÀÌÁßÁßÇÕ¹ýÀÌ ÁßÇÕµµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» °£Á¢ÀûÀ¸·Î ¾Ë¾Æº¸°íÀÚ ½Ã°£°æ°ú¿¡ µû¶ó ¹Ì¼¼°æµµ¸¦ ÃøÁ¤ÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ½ÇÇèÀ» À§ÇØ ÀÚ°¡Á¢Âø ·¹Áø½Ã¸àÆ®ÀÎ Maxcem Elite (Kerr)¿Í Rely-X Unicem (3M ESPE) ¹× ÀüÅëÇü ·¹Áø½Ã¸àÆ®ÀÎ Rely-X ARC (3M ESPE)¸¦ »ç¿ëÇÏ¿´À¸¸ç °¢ ·¹Áø½Ã¸àÆ®¸¦ µ¿ÀÏÇÑ Å©±âÀÇ Å×Ç÷Р¸ôµå¿¡ ä¿ì°í ÀÚ°¡ÁßÇÕ¹ý°ú ÀÌÁßÁßÇÕ¹ýÀ¸·Î ÁßÇÕÀ» ÇÏ¿© °¢°¢ 10°³¾¿ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´À¸¸ç ÁßÇÕ ½ÃÀÛ ÈÄ 10ºÐ, 30ºÐ, 1½Ã°£, 3½Ã°£, 6½Ã°£, 12½Ã°£, 24½Ã°£ÀÌ Áö³­ ½ÃÁ¡¿¡ ¹Ì¼¼°æµµ¸¦ ÃøÁ¤ÇÏ¿´´Ù.

°á°ú: °¢ ½ÃÁ¡¿¡¼­ ·¹Áø½Ã¸àÆ®º°·Î ÁßÇÕ¹ý »çÀÌÀÇ ºñ±³¸¦ À§ÇÑ independent samples t-test ¹× ¸ðµç ½ÇÇ豺 »çÀÌÀÇ ºñ±³¸¦ À§ÇÑ one-way ANOVA¿Í Scheffe »çÈÄ°ËÁ¤À» 95% À¯ÀǼöÁØ¿¡¼­ ½Ç½ÃÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. 1. ¸ðµç ½ÇÇ豺¿¡¼­ ½Ã°£ÀÌ °æ°úÇÔ¿¡ µû¶ó ¹Ì¼¼°æµµ°¡ Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´´Ù. 2. Maxcem¿¡¼­ ÁßÇÕ 1½Ã°£ ÈÄ ºÎÅ͸¦ Á¦¿ÜÇÏ°í ÀÌÁßÁßÇÕÀÌ ÀÚ°¡ÁßÇÕ¿¡ ºñÇØ ³ôÀº ¹Ì¼¼°æµµ °ªÀ» º¸¿´´Ù(p<0.05). 3. ¸Å ½ÃÁ¡¿¡¼­ ÀÚ°¡ÁßÇÕ¹ýÀÇ Rely-X UnicemÀÌ °¡Àå ³·Àº ¹Ì¼¼°æµµ¸¦ º¸¿´À¸¸ç ÀÌÁßÁßÇÕ¹ýÀÇ Rely-X UnicemÀÌ °¡Àå ³ôÀº ¹Ì¼¼°æµµ °ªÀ» º¸¿´´Ù.

°á·Ð: ÀÌ»óÀÇ ½ÇÇè °á°ú·Î º¼ ¶§ ÀÌÁßÁßÇÕ ·¹Áø½Ã¸àÆ®ÀÇ ÃæºÐÇÑ ÁßÇÕÀ» À§Çؼ­´Â ±¤Á¶»ç¸¦ ¹Ýµå½Ã ÇÏ¿©¾ß ÇÒ °ÍÀ¸·Î »ý°¢ÇÑ´Ù.

Objectives: The purpose of this study was to evaluate curing degree of three dual-cure resin cements with the elapsed time in self-cure and dual-cure mode by means of the repeated measure of micro-hardness.

Materials and Methods : Two dual-cure self-adhesive resin cements studied were Maxcem Elite (Kerr), Rely-X Unicem (3M ESPE) and one conventional dual-cure resin cement was Rely-X ARC resin cement (3M ESPE). Twenty specimens for each cements were made in Teflon mould and divided equally by self-cure and dual-cure mode and left in dark, , 100% relative humidity conditional-micro-hardness was measured at 10 min, 30 min, 1 hr, 3 hr, 6 hr, 12 hr and 24 hr after baseline. The results of micro-hardness value were statistically analyzed using independent samples t-test and one-way ANOVA with multiple comparisons using Scheffe¡¯s test.

Results: The micro-hardness values were increased with time in every test groups. Dual-cure mode obtained higher micro-hardness value than self-cure mode except after one hour of Maxcem. Self-cured Rely-X Unicem showed lowest value and dual-cured Rely-X Unicem showed highest value in every measuring time.

Conclusions : Sufficient light curing to dual-cure resin cements should provided for achieve maximum curing.

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Curing mode; Dual-cure; Micro-hardness; Resin cement; Self-adhesive

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