pH º¯È°¡ º¹ÇÕ·¹ÁøÀÇ ±¼°î ¹× ¾ÐÃ༺Áú¿¡ ¹ÌÄ¡´Â ¿µÇâ
Effect of pH variation on flexural and compressive properties of composite resins
Á¤»óºÀ, ¹®±Ù, ¼³È¿Á¤, °Á¤¼÷, ±Ç¿ëÈÆ,
¼Ò¼Ó »ó¼¼Á¤º¸
Á¤»óºÀ ( Jung Sang-Bong ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±¸°»ýÈÇб³½Ç
¹®±Ù ( Moon Keun ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±¸°»ýÈÇб³½Ç
¼³È¿Á¤ ( Seol Hyo-Joung ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÀç·áÇб³½Ç
°Á¤¼÷ ( Kang Jung-Sook ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±¸°»ýÈÇб³½Ç
±Ç¿ëÈÆ ( Kwon Yong-Hoon ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÀç·áÇб³½Ç
Abstract
±¸°³»ÀÇ pH´Â ´Ù¾çÇÑ À½½Ä°ú À½·á¼ö¿¡ ÀÇÇØ Æø³ÐÀº º¯ÈÀÇ ÆøÀ» °¡Áø´Ù. º» ¿¬±¸´Â pH°¡ º¹ÇÕ·¹ÁøÀÇ ±¼°î ¹× ¾ÐÃ༺Áú¿¡ ¹ÌÄ¡´Â¿µÇâÀ» Æò°¡ÇÑ °ÍÀÌ´Ù. À̸¦ À§ÇÏ¿© 4Á¾ÀÇ º¹ÇÕ·¹ÁøÀ» ½Ã·á·Î ¼±ÅÃÇÏ¿´°í, ½Ã·á¸¦ ±¤Á¶»çÇÑ ÈÄ pH°¡ °¢°¢ 3, 7.1, 9ÀÎ ¿ë¾×¿¡ ½Ç¿Â¿¡¼2ÁÖ µ¿¾È ´ã°¡µÎ¾ú´Ù. ±×¸®°í ¸¸´É½ÃÇè±â¸¦ ÀÌ¿ëÇÏ¿© ±¼°î ¹× ¾ÐÃ༺ÁúÀ» Æò°¡ÇÏ¿´´Ù. ±× °á°ú pH¿¡ »ó°ü¾øÀÌ ½Ã·á´Â ¿ë¾×¿¡ ´ã±äÈÄ¿¡ Ãʱ⠱¼°î ¹× ¾ÐÃà°µµ°¡ °¢°¢ 1.5-30.0%¿Í 0.3-19.6%·Î À¯ÀÇÇÏ°Ô º¯ÇÏ¿´°í modulusµµ °¢°¢ 4.4-29.0%¿Í 3.5-21.5%·Î À¯ÀÇÇÏ°Ôº¯Çß´Ù. ±×·¯³ª °¢±â ´Ù¸¥ pH Á¶°Ç¿¡ ´ëÇؼ °ªÀÇ º¯È´Â ÀÏ°ü¼º°ú À¯ÀǼºÀÌ ¾ø¾ú´Ù.
The pH of the oral cavity can dynamically change due to diverse foods and beverages served. The purpose of the presentstudy was to evaluate flexural and compressive properties of composite resins after immersion in solutions of different pHs. Four composite resins were cured and immersed in test solutions of different pHs (3, 7.1, and 9) for 2 weeks. Flexural andcompressive properties (strength and modulus) were evaluated using universal test machine. After immersion, initial flexuraland compressive strength significantly changed to 1.5-30.0% and 0.3-19.6%, respectively; flexural and compressive modulussignificantly changed to 4.4-29.0% and 3.5-21.5%, respectively. However, the values obtained from solutions of different pHswere not significantly and consistently different to each other.
Å°¿öµå
º¹ÇÕ·¹Áø; pH; ±¼°î¼ºÁú; ¾ÐÃ༺Áú
Composite resin; pH; Flexural property; Compressive property
¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸
µîÀçÀú³Î Á¤º¸