Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

³ª³ëº¹ÇÕ·¹Áø°ú Àú¼öÃà º¹ÇÕ·¹ÁøÀÇ º¹ÇÕ ÃþÀ¸·Î ÀÌ·é ½ÃÆíÀÌ »ö°ú ¹°¸®Àû ¼ºÁú¿¡ ¹ÌÄ¡´Â ¿µÇâ

Effect of layer combinations with nanocomposite and low-shrinkage composite resins on their color and mechanical properties

´ëÇÑÄ¡°úÀç·áÇÐȸÁö 2017³â 44±Ç 2È£ p.129 ~ 139
¹Ú¿Ï±â, Ã־ȳª, ¼Õ¼º¾Ö, ±Ç¿ëÈÆ, °­Àº¼÷, ¹ÚÁ¤±æ,
¼Ò¼Ó »ó¼¼Á¤º¸
¹Ú¿Ï±â ( park Wan-Ky ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
Ã־ȳª ( Choi An-Na ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
¼Õ¼º¾Ö ( Son Sung-Ae ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
±Ç¿ëÈÆ ( Kwon Yong-Hoon ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÀç·áÇб³½Ç
°­Àº¼÷ ( Kang Eun-Sook ) - ÀÎÁ¦´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
¹ÚÁ¤±æ ( Park Jeong-Kil ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç

Abstract

º» ¿¬±¸´Â siloraneÀ» ±âÁúÀÇ Àú¼öÃà·¹Áø°ú ³ª³ëº¹ÇÕ·¹ÁøÀÇ ÀÌÃþ (two-layer) ±¸Á¶¸¦ °®´Â ½Ã·áÀÇ »ö°ú ¹°¸®Àû ¼ºÁúÀ» Æò°¡Çϱâ À§ÇÔÀÌ´Ù.
½ÇÇèÀ» À§ÇÏ¿© 4Á¾ÀÇ ³ª³ëº¹ÇÕ·¹Áø(Aelite LS, Grandio, Tetric EvoCeram, Filtek Z350XT )°ú 1Á¾ÀÇ silorane ±âÁúÀÇ º¹ÇÕ·¹Áø(P90)À» ÅÃÇÏ°í À̵é·Î ÃþÀÇ µÎ²²°¡ °¢±â ´Ù¸¥ ¿©·¯ °¡Áö Á¶ÇÕÀÇ ÀÌÃþÀ» ¸¸µé¾ú´Ù. »ö°ú ±¼°î¼ºÁú Æò°¡¸¦ À§Çؼ­ ³ª³ëº¹ÇÕ·¹Áø°ú silorane ·¹ÁøÀ» 0.5+1.5mm, 1+1mm, 1.5+0.5mm µÎ²²ÀÇ Á¶ÇÕÀ» ¸¸µé¾ú´Ù. ¾ÐÃ༺Áú Æò°¡¸¦ À§ÇÏ¿© 1.5+4.5mm, 3+3mm, 4.5+1.5mm µÎ²²ÀÇ Á¶ÇÕÀ» ¸¸µé¾ú´Ù. µÎ²²°¡ °¢°¢ 2mm (±¼°î¼ºÁú Æò°¡¿ë)¿Í 6mm (¾ÐÃ༺Áú Æò°¡¿ë)ÀÎ ´ÜÃþÀÇ ½Ã·á´Â ´ëÁ¶±ºÀ¸·Î »ç¿ëÇÏ¿´´Ù. ÀÌµé ½Ã·á¸¦ ÀÌ¿ëÇÏ¿© »ö, Åõ¸íµµ, ±¼°î°­µµ¿Í ±¼°î°è¼ö ¹× ¾ÐÃà°­µµ¿Í ¾ÐÃà°è¼ö¸¦ ÃøÁ¤ÇÏ¿´´Ù. ±× °á°ú, »ç¿ëµÈ ½Ã·áµéÀº ¸ðµÎ µ¿ÀÏÇÑ A3 »öÁ¶ÀÌÁö¸¸ L*, a*, b*ÀÇ »öÁÂÇ¥°è °ªµéÀº ¸ðµÎ ´Þ¶ú´Ù. ÃþÀ» ÀÌ·é ½Ã·áµéÀÇ L*, a*, b*°ªÀº À§ÂÊ¿¡ À§Ä¡ÇÏ´Â ½Ã·áÀÇ µÎ²²°¡ Áõ°¡ÇÒ¼ö·Ï À§ÂÊ ·¹ÁøÀÇ L*, a*, b*°ª¿¡ °¡±î¿ü´Ù. ÀÌÃþÀ» ÀÌ·é ½Ã·áµéÀÇ Åõ¸íµµ´Â 1.92-6.33 À̾ú´Âµ¥ °¢ÃþÀ» ÀÌ·ç´Â µÎ ½Ã·áÀÇ b*°ª Â÷ÀÌ°¡ Ŭ¼ö·Ï Åõ¸íµµµµ Áõ°¡ÇÏ¿´´Ù(p<0.05). ÀÌÃþÀ» ÀÌ·é ½Ã·áµéÀÇ ±¼°î°­µµ¿Í ±¼°î°è¼ö´Â °¢°¢ 108.8-134.0 MPa¿Í 10.95-18.39 GPaÀ̾ú°í ¾ÐÃà°­µµ¿Í ¾ÐÃà°è¼ö´Â °¢°¢ 108.3-254.9 MPa¿Í 3.13-4.11 GPa·Î½á ´ÜÃþ »óÅÂÀÇ ±¼°î°­µµ¿Í ±¼°î°è¼ö [(123.2-161.0 MPa)¿Í (11.64-21.58 GPa)] ±×¸®°í ¾ÐÃà°­µµ¿Í ¾ÐÃà°è¼ö[(327.4-405.4 MPa)¿Í (4.02-5.29 GPa)] º¸´Ù ¸ðµÎ ³·¾Ò´Ù.

This study investigated the colors and mechanical properties of layered dental composites. Four nanocomposite resins (Aelite LS, Grandio, Tetric EvoCeram, Filtek Z350XT) and a silorane-based composite resin (P90) were used for overlying and underlying materials, respectively, with different thickness combinations. Colors, translucency parameter (TP), flexural and compressive properties were evaluated. All tested specimens had different color coordinates, although all were of A3 shade. Color coordinates and TP values of layered specimens better matched those of the corresponding overlying product as the thickness of the overlying product was increased. High TP values were related with high b* value differences between specimens (p<0.05). Both flexural strength and modulus, compressive strength and modulus of layered specimens with different thickness combinations were mostly lower than those of the corresponding overlying products, respectively, in their non-layered state.

Å°¿öµå

»ö»ó; ÀûÃþ½ÃÆí; ¹°¸®Àû ¼ºÁú; Àú¼öÃູÇÕ·¹Áø; ³ª³ëº¹ÇÕ·¹Áø
Color; Layered specimens; Mechanical properties; low-shrinkage composite resin; Nanocomposite resins

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

KCI