Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

Alkasite¿Í ±âÁ¸ÀÇ ¼öº¹ Àç·áÀÇ ¾ÐÃà°­µµ ¹× ¹Ì¼¼°æµµ ºñ±³

Comparison of Microhardness and Compressive Strength of Alkasite and Conventional Restorative Materials

´ëÇѼҾÆÄ¡°úÇÐȸÁö 2020³â 47±Ç 3È£ p.320 ~ 326
ÀÌ°ÇÈ£, ±èÁ¾¼ö, ½ÅÁö¼±, Çѹ̶õ,
¼Ò¼Ó »ó¼¼Á¤º¸
ÀÌ°ÇÈ£ ( Lee Kun-Ho ) - Dankook University College of Dentistry Department of Pediatric Dentistry
±èÁ¾¼ö ( Kim Jong-Soo ) - Dankook University College of Dentistry Department of Pediatric Dentistry
½ÅÁö¼± ( Shin Ji-Sun ) - Dankook University College of Dentistry Department of Pediatric Dentistry
Çѹ̶õ ( Han Mi-Ran ) - Dankook University College of Dentistry Department of Pediatric Dentistry

Abstract

ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº ÃÖ±Ù ¼Ò°³µÈ alkasite ¼öº¹Àç·áÀÇ ¾ÐÃà°­µµ¿Í ¹Ì¼¼°æµµ¸¦ ±Û¶ó½º¾ÆÀÌ¿À³ë¸Ó ½Ã¸àÆ®¿Í À¯µ¿¼º º¹ÇÕ·¹Áø°ú ºñ±³ÇÏ¿© alkasite ¼öº¹ÀçÀÇ ¹°¼ºÀ» ¿¹ÃøÇÏ´Â °ÍÀ̾ú´Ù. ¾ÐÃà°­µµ¿Í ºñÄ¿½º ¹Ì¼¼°æµµ ÃøÁ¤À» À§ÇØ °¢ Àç·á´ç 20°³ÀÇ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´´Ù. ¸¸´É½ÃÇè±â¸¦ »ç¿ëÇÏ¿© ÃÊ ´ç 1 mm Ⱦ´Ü ¼Óµµ ÇÏ¿¡¼­ ¾ÐÃà°­µµ¸¦ ÃøÁ¤ÇÏ¿´À¸¸ç, ¹Ì¼¼°æµµ´Â ºñÄ¿½º ¹Ì¼¼°æµµ ÃøÁ¤±â¸¦ »ç¿ëÇÏ¿© º¸¾Ð ½Ã°£(dwelling time) 10ÃÊ Á¶°Ç ÇÏ¿¡¼­ 500 gÀÇÈûÀ» °¡ÇØ ½ÃÆí Á¦ÀÛ 1½Ã°£, 1ÀÏ, 7ÀÏ, 14ÀÏ, 21ÀÏ, 35ÀÏ ÈÄ¿¡ ÃøÁ¤ÇÏ¿´´Ù. ¿¬±¸°á°ú ¾ÐÃà°­µµ´Â º¹ÇÕ·¹ÁøÀÌ °¡Àå ³ô¾ÒÀ¸¸ç alkasite, ±Û¶ó½º¾ÆÀÌ¿À³ë¸Ó ½Ã¸àÆ® ¼øÀ̾ú´Ù. ¹Ì¼¼°æµµ ÃøÁ¤ °á°ú º¹ÇÕ·¹ÁøÀº ¿¬±¸±â°£µ¿¾È ¹Ì¼¼°æµµÀÇ º¯È­°¡ ¾ø¾úÀ¸¸ç ½ÃÆíÁ¦ÀÛ 1½Ã°£ ÈÄ, 1ÀÏÂ÷, 7ÀÏÂ÷ ÃøÁ¤±îÁö °¡Àå ³ôÀº ¹Ì¼¼°æµµ¸¦ º¸¿´´Ù. ±Û¶ó½º¾ÆÀÌ¿À³ë¸Ó ½Ã¸àÆ®ÀÇ °æ¿ì 7ÀÏÂ÷±îÁö ¹Ì¼¼°æµµ°¡ Áõ°¡ÇÏ¿© º¹ÇÕ·¹Áø°ú Â÷ÀÌ°¡ ¾ø¾îÁø ¹Ý¸é, alkasite´Â 14ÀÏÂ÷±îÁö ¼­¼­È÷ ¹Ì¼¼°æµµ°¡ Áõ°¡ÇÏ´Ù°¡ÀÌÈÄ ´Ù½Ã °¨¼ÒÇÏ´Â ¾ç»óÀÌ °üÂûµÇ¾ú´Ù.

The aim of this study was to compare compressive strength and microhardness of recently introduced alkasite restorative materials with glass ionomer cement and flowable composite resin. For each material, 20 samples were prepared respectively for compressive strength and Vickers microhardness test. The compressive strength was measured with universal testing machine at crosshead speed of 1 mm/min. And microhardness was measured using Vickers Micro hardness testing machine under 500 g load and 10 seconds dwelling time at 1 hour, 1 day, 7 days, 14 days, 21 days and 35 days. The compressive strength was highest in composite resin, followed by alkasite, and glass ionomer cement. In microhardness test, composite resin, which had no change throughout experimental periods, showed highest microhardness in 1 hour, 1 day, and 7 days measurement. The glass ionomer cement showed increase in microhardness for 7 days and no difference was found with composite resin after 14 days measurement. For alkasite, maximum microhardness was measured on 14 days, but showed gradual decrease.

Å°¿öµå

Alkasite; Composite resin; Glass ionomer cement; Compressive strength; Microhardness

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

   

µîÀçÀú³Î Á¤º¸

KCI