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Evaluation of New LED Curing Light on Resin Composite Polymer

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°­ÁöÀº ( Kang Ji-Eun ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
Àü»õ·Î¹Ì ( Jun Saeromi ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÁ¾ºó ( Kim Jong-Bin ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÁ¾¼ö ( Kim Jong-Soo ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
À¯½ÂÈÆ ( Yoo Seung-Hoon ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

ÃÖ±Ù µµÀÔµÈ ±¤¹üÀ§ ½ºÆåÆ®·³ÀÇ ¹ß±¤ ´ÙÀÌ¿Àµå ±¤ÁßÇÕ±â´Â 4°³ÀÇ ·¥ÇÁ·Î ±¸¼ºµÇ¾î ÀÖÀ¸¸ç ´Ù¾çÇÑ ÁßÇÕ ¸ðµå¸¦ °¡Áö°í ÀÖ´Ù. ÀÌ ¿¬±¸´Â ±¤¹üÀ§ ½ºÆåÆ®·³ ¹ß±¤ ´ÙÀÌ¿Àµå(VALO¢ç, Ultradent, USA) ±¤ÁßÇÕ±â¿Í ±âÁ¸ÀÇ ¹ß±¤ ´ÙÀÌ¿Àµå ±¤ÁßÇÕ±â(EliparTM Freelight 2, 3M ESPE, USA)ÀÇ È¿À²À» ¹Ì¼¼°æµµ ½ÃÇèÀ» ÅëÇØ ºñ±³ÇÏ¿´´Ù. ¿¬±¸¿¡ »ç¿ëÇÑ ±¤ÁßÇÕ±â´Â VALO¢ç¿Í EliparTM Freelight 2À̸ç ÁßÇÕ ½Ã°£Àº Á¦Á¶»çÀÇ Áö½Ã¿¡ µû¶ú´Ù. 37¡ÉÀÇ »ý¸®½Ä¿°¼ö¿¡ ÁßÇÕµÈ ·¹Áø ½ÃÆíÀ» 24½Ã°£ µ¿¾È º¸°üÇÑ ÈÄ ¹Ì¼¼°æµµ ½ÃÇèÀ» ½ÃÇàÇÏ¿´´Ù. ½ÃÆí »óºÎ¿Í ÇϺÎÀÇ º¹ÇÕ·¹Áø ¹Ì¼¼°æµµ´Â °øºÐ»êºÐ¼®À» ½ÃÇàÇÏ¿´´Ù.
±¤¹üÀ§ ½ºÆåÆ®·³ÀÇ ¹ß±¤ ´ÙÀÌ¿Àµå ±¤ÁßÇձ⸦ ÀÌ¿ëÇÏ¿© °í¼º´É ¸ðµå¿¡¼­ 4ÃÊ, ÇöóÁ ¸ðµå¿¡¼­ 20ÃÊ ±¤ÁßÇÕÀ» ½Ç½ÃÇÑ º¹ÇÕ·¹Áø ½ÃÆíÀÇ »óºÎ´Â ±âÁ¸ÀÇ ¹ß±¤ ´ÙÀÌ¿Àµå ±¤ÁßÇձ⿡ ºñÇØ ¹Ì¼¼°æµµ°¡ Áõ°¡ÇÏ¿´À¸³ª(p < 0.05), ½ÃÆíÀÇ ÇϺο¡¼­´Â ½ÇÇè¿¡ »ç¿ëµÈ ±¤ÁßÇձ⠰£¿¡ À¯ÀǼº ÀÖ´Â Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù.

The purpose of this study is to compare efficiency of broad spectrum LEDs (VALO¢ç, Ultradent, USA) with conventional LED curing lights (EliparTM Freelight 2, 3M ESPE, USA) using a microhardness test. The light curing units used were VALO¢ç in three different modes and EliparTM Freelight 2. The exposure time was used according to the manufacturer¡¯s instructions. After cured resin specimens were stored in physiological saline at 37¡É for 24 hours, microhardness was measured using Vickers microhardness tester. The microhardness of upper and lower sides of the specimens were analyzed separately by the ANOVA method (Analysis of Variance) with a significance level set at 5%. At upper side of resin specimens, an increased microhardness was observed in the broad spectrum LED curing light unit with a high power mode for 4 seconds and plasma emulation mode for 20 seconds (p < 0.05). However, at the lower side of resin specimens, there were no significant differences in microhardness between broad spectrum LED curing light unit and conventional LED curing light unit.

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Light emitting diodes; Broad spectrum; Microhardness; Curing unit

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