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Effects of immediate and delayed light activation on the polymerization shrinkage-strain of dual-cure resin cements
À̼ҿ¬, ±è¼ºÈÆ, ÇϽ·æ, ÃÖÀ¯¼º, ±èÈñ°æ,
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À̼ҿ¬ ( Lee So-Yeoun ) - ¼¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø
±è¼ºÈÆ ( Kim Sung-Hun ) - ¼¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
ÇϽ·æ ( Ha Seung-Ryong ) - ¾ÆÁÖ´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡ÀÇÇаú
ÃÖÀ¯¼º ( Choi Yu-Sung ) - ´Ü±¹´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
±èÈñ°æ ( Kim Hee-Kyung ) - Áß¾Óº¸Èƺ´¿ø Ä¡°úº´¿ø Ä¡°úº¸Ã¶°ú
KMID : 0362420140520030195
Abstract
¸ñÀû: º» ¿¬±¸¿¡¼´Â ¼¼ °¡Áö ÁßÇÕ ¹æ¹ý¿¡ µû¸¥ ÀÌ¿ø ÁßÇÕ ·¹Áø ½Ã¸àÆ®ÀÇ ÁßÇÕ ¼öÃà·üÀ» ºñ±³ÇÏ°í ±¤Á¶»ç°¡ ÁßÇÕ Á¤µµ¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ °üÇÏ¿© ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
Àç·á ¹× ¹æ¹ý: ³× °¡Áö Á¾·ùÀÇ ÀÌ¿ø ÁßÇÕÇü ·¹Áø ½Ã¸àÆ®(Smartcem 2, Panavia F 2.0, Clearfil SA Luting, Zirconite)°¡ »ç¿ëµÇ¾ú´Ù. °¢ Àç·á ´ç ¼¼°¡Áö ¼·Î ´Ù¸¥ ÁßÇÕ ¹æ¹ý(ÀÚ°¡ ÁßÇÕ, Áï½Ã ±¤ÁßÇÕ, 5ºÐ Áö¿¬ ±¤ÁßÇÕ)À¸·Î ÁßÇÕÇÏ¿´À¸¸ç, °¢ ¹æ¹ý ´ç 5°³ÀÇ ½ÃÆíÀ» »ç¿ëÇÏ¿´´Ù. Bonded disk method¸¦ »ç¿ëÇÏ¿© 37 µµ¿¡¼ 30ºÐ°£, ½Ã°£¿¡ µû¸¥ ÁßÇÕ ¼öÃà·üÀ» ÃøÁ¤ÇÏ¿´´Ù. ÃøÁ¤°ªÀº ÀÏ¿øºÐ»êºÐ¼®°ú ´ÙÁß ºÐ¼®À» À§ÇÑ Scheffe¡® test¸¦ »ç¿ëÇÏ¿´°í, À¯ÀǼöÁØÀº 0.05À¸·Î ÇÏ¿´´Ù.
°á°ú:Panavia F 2.0¸¦ Á¦¿ÜÇÑ ³ª¸ÓÁö ¼¼ Á¾·ùÀÇ ÀÌ¿ø ÁßÇÕ ·¹Áø ½Ã¸àÆ®µéÀº Áö¿¬ ±¤ÁßÇÕ ¹ÝÀÀ¿¡¼ °¡Àå ³ôÀº ÁßÇÕ ¼öÃà·üÀ» º¸¿´´Ù. Panavia F 2.0ÀÇ ÁßÇÕ ¼öÃà·üÀº ÁßÇÕ ¹æ¹ý°£¿¡ Åë°èÇÐÀû À¯ÀǼºÀÌ ¾ø¾ú´Ù. ÁßÇÕÀÌ °³½ÃµÈ Ãʱâ 10ºÐ ³»¿¡ Áï½Ã ȤÀº Áö¿¬ ±¤ÁßÇÕ¿¡¼ ¸ðµç ½Ã¸àÆ®´Â 90% ÀÌ»óÀÇ ÁßÇÕ ¼öÃàÀ» º¸¿´´Ù.
°á·Ð:ÀÌ¿ø ÁßÇÕ ·¹Áø ½Ã¸àÆ®ÀÇ Áö¿¬ ±¤ÁßÇÕÀÌ ÁßÇÕ È¿À²À» ³ôÀδÙ.
PURPOSE. This study was designed to compare the amount of polymerization shrinkage of dual-cure resin cements according to different polymerization modes and to determine the effect of light activation on the degree of polymerization.
MATERIALS AND METHODS. Four kinds of dual-cure resin cements were investigated: Smartcem 2, Panavia F 2.0, Clearfil SA Luting and Zirconite. Each material was tested in three different polymerization modes: self-polymerization only, immediate light polymerization and 5 minutes-delayed light polymerization. The time-dependent polymerization shrinkage-strain was evaluated for 30 minutes by Bonded-disk method at 37 degree C. Five recordings of each material with three different modes were taken. Data were analyzed using one-way ANOVA and multiple comparison Scheffe¡¯test (a=.05).
RESULTS. All materials, except Panavia F 2.0, exhibited the highest polymerization shrinkage-strain through delayed light-activated polymerization. No significant difference between light activation modes was found with Panavia F 2.0. All materials exhibited more than 90% of polymerization rate in the immediate or delayed light activated group within 10 minutes.
CONCLUSION. As a clinical implication of this study, the application of delayed light activation mode to dual-cure resin cements is advantageous in terms of degree of polymerization.
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ÀÌ¿ø ÁßÇÕ ·¹Áø ½Ã¸àÆ®; ÁßÇÕ ¼öÃà·ü; ±¤ÁßÇÕ
Dual-cure resin cement; Polymerization shrinkage-strain; Light activation
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