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WEAR AND CHEMICAL DEGRADATION OF ESTHETIC RESTORATIVE MATERIALS

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Abstract

¼öº¹Àç·áÀÇ ¿ä°ÇÀ¸·Î¼­ Ä¡¾ÆÀÇ ÀúÀÛ±â´É°ú ½É¹Ì¼ºÀ» ȸº¹ÇÒ ¼ö ÀÖ´Â ¹°¸®Àû, È­ÇÐÀû ¼ºÁú»Ó¸¸ ¾Æ´Ï¶ó »ý¹°ÇÐÀû ÀûÇÕ¼º°ú ±¸°­³» ȯ°æº¯È­¿¡ ´ëÇÑ ³»±¸¼ºÀ» µé ¼ö ÀÖ´Ù. ºÒ¼Ò ¹æÃâÀÇ ÀåÁ¡À» °®´Â ÄÄÆ÷¸Ó³ª ½Ã¼ú½Ã°£À» ÁÙÀ̴µ¥ À¯¸®ÇÑ Àç·áÀÎ À¯µ¿¼º º¹ÇÕ·¹ÁøÀ» À¯±¸Ä¡ºÎ¿¡ »ç¿ëÇÏ·Á°í ÇÒ ¶§ ¸¶¸ðÀúÇ×¼º°ú ±¸°­³» ȯ°æ¿¡¼­ÀÇ ºÐÇØÀúÇ×¼ºÀº Áß¿äÇÑ ¹°¼º Áß ÇϳªÀÌ´Ù.
½ÇÇè¿¡ »ç¿ëµÈ º¹ÇÕ·¹ÁøÀº ÃÖ±Ù¿¡ ½ÃÆǵǰí ÀÖ´Â Charmfil(Dentist, Korea)°ú À¯µ¿¼ºÀÎ Charmfll flow(Dentist, Korea)ÀÌ°í, ÄÄÆ÷¸Ó´Â Compoglass F(Ivoclar Vivadent, Liechtenstein)¿Í À¯µ¿¼ºÀÎ PrimaFlow(DMG Hamburg, Germany)À̾ú´Ù. °¢ Á¦Ç°ÀÇ ºÐÇØÀúÇ×¼º°ú ¸¶¸ðµµ¸¦ Æò°¡ÇÏ°íÀÚ ¸¶¸ð½ÃÇè ÈÄ ¸¶¸ðµÈ ¸éÀÇ ±íÀ̸¦ ÃøÁ¤ÇÏ¿´°í ¾ËÄ®¸®¼º ¿ë¾×¿¡ º¸°ü ½Ã °¢ Á¦Ç°ÀÇ ºÐÇØÀúÇ×¼ºÀ» ¹«°Ô¼Õ½Ç, Ç¥¸éÇÏ ºÐÇØÃþ ±íÀÌ, ¿ëÃâµÈ Si ³óµµ¸¦ ±âÁØÀ¸·Î Æò°¡ÇÏ¿´°í ÁÖ»çÀüÀÚÇö¹Ì°æ°ú °øÃÐÁ¡ ·¹ÀÌÀú Çö¹Ì°æÀ¸·Î ºÐÇØÃþÀ» °üÂûÇÏ¿© ´ÙÀ½ÆÄ °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. ¹«°Ô¼Õ½Ç·®Àº °¢ Á¦Ç°°£ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(p>0.05).
2. ºÐÇØÃþ ±íÀÌ´Â Compoglass F°¡ °¡Àå ±í¾ú°í, PrimaFlow, Charmfil, Charmfil flow ¼øÀ̾ú°í Compoglass ¿Í ´Ù¸¥ Á¦Ç° °£¿¡´Â À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p<0.05).
3. Si ¿ëÃâ·®Àº Charmfil flow°¡ °¡Àå ¸¹¾Ò°í, Compoglass F°¡ °¡Àå ÀÛ¾ÒÀ¸¸ç µÎ Á¦Ç° °£¿¡´Â À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p<0.05).
4. ÁÖ»çÀüÀÚÇö¹Ì°æ °üÂû½Ã Ç¥¸é ¾ç»ó ¹× ºÐÇØÃþ ±íÀ̸¦ °üÂûÇÒ ¼ö ÀÖ¾ú°í °øÃÐÁ¡ ·¹ÀÌÀú Çö¹Ì°æ °üÂû½Ã NaOH ¿ë¾×¿¡ º¸°üÇÑ ÈÄ ¼öº¹ÀçÀÇ ±âÁú°ú ÃæÀüÁ¦ »çÀÌÀÇ °áÇÕÀÇ Æı« ¾ç»óÀÎ ºÐÇØÃþ ±íÀ̸¦ °üÂûÇÒ ¼ö ÀÖ¾ú´Ù.
5. ¸¶¸ð´Â Compoglass F¿¡¼­ °¡Àå ¸¹ÀÌ ÀϾÀ¸¸ç, PrimaFlow, Charmfil, Charmfil flow ¼øÀ̾ú°í °¢ Á¦Ç° °£¿¡´Â À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p<0.05).
6. °¢ Á¦Ç°ÀÇ Si ¿ëÃâ·®°ú ºÐÇØÃþ ±íÀÌ »çÀÌ(r=0.602, p<0.05), ¸¶¸ð ÃÖ´ë ±íÀÌ¿Í ºñÄ¿½º °æµµ »çÀÌ(r=0.501, p<0.05)¿¡´Â À¯ÀÇÇÑ »ó°ü°ü°è¸¦ º¸¿´À¸³ª Si ¿ëÃâ·®°ú ¸¶¸ð ÃÖ´ë ±íÀÌ µî ´Ù¸¥ Ç׸ñ°£¿¡´Â À¯ÀÇÇÑ »ó°ü°ü°è¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(r=-0.052, p>0.05).
º» ¿¬±¸¿¡¼­ Compoglass F´Â ºÒ¼ÒÇÔ·®Àº °¡Àå ³ô¾ÒÀ¸³ª È­ÇÐÀû ºÐÇØÃþ°ú ¸¶¸ð±íÀÌ°¡ °¡Àå ±íÀº °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç flowable typeÀÇ º¹ÇÕ·¹Áø°ú ÄÄÆ÷¸Ó´Â Ç¥¸é °æµµ¿Í ¸¶¸ðµµ¿¡¼­ ¾çÈ£ÇÑ °á°ú¸¦ º¸¿´´Ù.
ÀÌ»óÀÇ °á°ú º¹ÇÕ·¹Áø°ú ÄÄÆ÷¸ÓÀÇ Æò°¡¿ä¼Ò·Î¼­ ¸¶¸ðµµ¿Í ÇÔ²² °¡¼öºÐÇصµ °í·ÁµÇ¾î¾ß ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.
The aim of this study was to evaluate the resistance to degradation and to compare the wear resistance char¡þacteristics of four esthetic restorative materials in an alkaline solution. The brands studied were Charmfil, Charmfl flow(composite resin), Compoglass F and PrimaFlow(compomer).
The results were as follows:
1. The mass loss were not significantly different among the materials (00.05).
2. The sequence of the degree of degradation layer depth was in descending order by Compoglass F,
PrimaFlow, Charmfil, and Charmfil flow. There were significant differences between Compoglass F and the
others(p<0.05).
3. The sequence of the Si loss was in descending order by Charmfil flow, Charmfil, PrimaFlow, and Compoglass F. There were significant differences among these materials (p<0.05).
4. When observed with SEM, destruction of bonding between matrix and filler was observed and when observed with CLSM, the depth of degradation layer of specimen surface was observed.
5. The sequence of maximum wear depth was in descending order by Comfoglass, PrimaFlow, Charmfil, and Charmfil flow. There were significant differences among these materials(p<0.05).
6. The correlation coefficient between Si loss and degradation layer depth (r=0.602, p<0.05), Vicker¢¥s hardness number and maximum wear depth (r=0.501, p<0.05) were relatively high.
These results indicate that wear and hydrolytic degradation may be considered to be evaluation factors of com¡þposite resins and compomers.

Å°¿öµå

½É¹Ì¼öº¹Àç·á;¸¶¸ð;È­ÇÐÀû ºÐÇØ;Esthetic restorative materials;Wear;Chemical degradation

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