Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

ÁßÇÕ ¿Âµµ°¡ Àӽà º¸Ã¶¿ë ¼öÁöÀÇ ±â°èÀû ¼ºÁú¿¡ ¹ÌÄ¡´Â ¿µÇâ

Effect of polymerization temperature on the mechanical properties of provisional prosthesis resins

´ëÇÑÄ¡°úÀç·áÇÐȸÁö 2017³â 44±Ç 4È£ p.311 ~ 318
È«¹ÎÈ£, ÇÏÁ¤À±, ±ÇÅ¿±,
¼Ò¼Ó »ó¼¼Á¤º¸
È«¹ÎÈ£ ( Hong Min-Ho ) - °æºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø »ýüÀç·á¿¬±¸¼Ò
ÇÏÁ¤À± ( Ha Jung-Yun ) - °æºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø »ýüÀç·á¿¬±¸¼Ò
±ÇÅ¿± ( Kwon Tae-Yub ) - °æºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°ú»ýüÀç·áÇб³½Ç

Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº 2°¡Áö Àӽà ¼öÁö (Bis-acryl resin composite ¹× polymethyl methacrylate (PMMA))ÀÇ ±¼°î °­µµ ¹× ¹Ì¼¼ °æµµ¿¡ ´ëÇÑ °æÈ­ ¼ø¼­ ¹× ÁßÇÕ ¿ÂµµÀÇ ¿µÇâÀ» Á¶»çÇÏ´Â °Í¿¡ ÀÖ´Ù. ÁßÇÕÀº ´ë±â Áß 25¡É (´ëÁ¶) ¹× ¿Â¼ö (40, 50, 60, 70 ±×¸®°í 80¡É)¿¡¼­ ´Ù¾çÇÑ Á¶°ÇÇÏ¿¡ ¼öÇàµÇ¾ú´Ù. ±¼°î °­µµ ½ÃÇèÀº ISO-4049¿¡ µû¶ó ¼öÇàµÇ¾ú´Ù. ¶ÇÇÑ, ´©ÇÁ °æµµ¸¦ ÃøÁ¤ ÇÏ¿´´Ù. Bis-acryl resinÀÇ °æ¿ì, 50¡É±îÁöÀÇ ¿Âµµ´Â ±¼°î °­µµ¿Í bis-acryl resin compositeÀÇ °æµµ¸¦ Áõ°¡½ÃÅ°Áö ¾Ê¾ÒÁö¸¸ (p> 0.05), ¿Âµµ°¡ ³ôÀ»¼ö·Ï °­µµ°¡ Áõ°¡ ÇÏ¿´´Ù. PMMA ¼öÁöÀÇ °æ¿ì ±¼°î °­µµ´Â ÃÖ´ë 70¡ÉÀÇ ¿Âµµ¿¡¼­ Áõ°¡ÇÏ°í ¾à°£ °¨¼ÒÇÕ´Ï´Ù. Bis-acryl resinÀº PMMA ¼öÁöº¸´Ù ±â°èÀû Ư¼ºÀÌ ´õ ÄÇ´Ù. ¿­ÀÇ ¿µÇâÀº Bis-acryl resin¿¡¼­ PMMA ¼öÁöº¸´Ù ´õ µÎµå·¯Á³´Ù(p <0.05).

The purpose of this study was to examine the effects of the curing sequence and polymerization temperature on the flexural strength and microhardness of two provisional resins (Bis-acryl resin composite and polymethyl methacrylate(PMMA)). Polymerization was carried out under various conditions, in air at 25¡É (control) and in hot water (40, 50, 60, 70, and 80¡É). The flexural strength test was conducted according to ISO-4049. The Knoop hardness was measured. For the Bis-acryl resin, the temperature up to 50¡É did not increase the flexural strength nor the hardness of the bis-acryl resin composite (p>0.05) but higher temperatures increased the strengths. For the PMMA resin, flexural strength increased with temperatures up to 70¡É and then decreased slightly. Bis-acryl resin composite had higher mechanical properties than the PMMA resin. The effect of heat was more pronounced in the bis-acryl resin composite than in the PMMA resin (p<0.05).

Å°¿öµå

ÁßÇÕ ¿Âµµ; ±â°èÀû ¼ºÁú; ºñ½º ¾ÆÅ©¸± ·¹Áø; Æú¸®¸ÞŸ¸ÞÆ¿Å©¸±·¹ÀÌÆ®
Polymerization temperature; Mechanical properties; Bis-acryl resin; PMMA resin

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

KCI