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WEAR AND CHEMICAL DEGRADATION OF ESTHETIC RESTORATIVE MATERIALS
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±è¼±¹Ì ( Kim Seon-Mi ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
KMID : 0358920050320030557
Abstract
Àü³²´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡ÀÇÇÐ ¿¬±¸¼Ò ¼öº¹Àç·á·Î »ç¿ëµÇ´Â º¹ÇÕ·¹ÁøÀº 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» °¡Áö°í ÀÖ¾î¾ß ÇÑ´Ù. À¯Ä¡¿¡ »ç¿ëÇÏ·Á°í ÇÒ ¶§¿¡µµ ¸¶¸ðÀúÇ×¼º°ú ±¸°³» ȯ°æ¿¡¼ÀÇ ºÐÇØÀúÇ×¼ºÀº °í·ÁÇؾßÇÒ Áß¿äÇÑ ¹°¼ºÀÌ´Ù.
½ÇÇè¿¡ »ç¿ëµÈ º¹ÇÕ·¹ÁøÀº ÃÖ±Ù¿¡ ½ÃÆǵǰí ÀÖ´Â Metafil CX(Sun Medical, Japan) Solitaire 2(Heraeus Kulzer, USA), Composan LCM(Promedica, Germany), DenFil(Vericom, Korea)À̾ú´Ù. °¢ Á¦Ç°ÀÇ ºÐÇØÀúÇ×¼º°ú ¸¶¸ðµµ¸¦ Æò°¡ÇÏ°íÀÚ ¸¶¸ð½ÃÇè ÈÄ ¸¶¸ðµÈ ¸éÀÇ ±íÀ̸¦ ÃøÁ¤ÇÏ¿´°í ÈÇÐÀûºÐÇظ¦ ¾ò±â À§ÇØ 0.1N NaOH¿¡ 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¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. ¹«°Ô ¼Õ½Ç·®Àº 0.74~7.94%±îÁö ´Ù¾çÇÏ¿´À¸¸ç Metafil¿¡¼ °¡Àå ³ô¾Ò´Ù.
2. ºÐÇØÃþ ±íÀÌ´Â MetafilÀÌ °¡Àå ±í¾ú°í Solitare 2, Denfil, Composan LCM¼øÀ̾ú°í MetafilÀº ´Ù¸¥Á¦Ç°°ú À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p£¼0.05).
3. Si ¿ëÃâ·®Àº MetafilÀÌ °¡Àå ¸¹¾ÒÀ¸¸ç Metafil CX¿Í Composan LCM, DenFil, Solitaire 2»çÀÌ¿¡ À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(P£¼0.05).
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»óÀ» °üÂûÇÒ ¼ö ÀÖ¾ú´Ù.
5. Ãִ븶¸ð±íÀÌ´Â DenFil¿¡¼ °¡Àå ³·¾Ò°í, Metafil CX¿¡¼ °¡Àå ±í¾úÀ¸¸ç °¢ Á¦Ç° °£¿¡´Â À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p£¼0.05).
6. °¢ Á¦Ç°ÀÇ Si ¿ëÃâ·®°ú ºÐÇØÃþ ±íÀÌ »çÀÌ (r=0.491, p£¼0.05), Ãִ븶¸ð±íÀÌ¿Í ºñÄ¿½º°æµµ °£(r=-0.942, p£¼0.01)¿¡ À¯ÀÇÇÑ »ó°ü°ü°è¸¦ º¸¿´´Ù.
ÀÌ»óÀÇ °á°ú º¹ÇÕ·¹ÁøÀÇ 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 characteristics of four esthetic restorative materials in an alkaline solution(0.1N NaOH).
The brands studied were MetafilCX(Sun medical, Japan) Solitaire 2(Heraeus Kulzer, USA), Composan LCM(Promedica, Germany), DenFil(Vericom, Korea).
The results were as follows:
1. The mass loss of each brand was 0.74~7.94% and highest value in Metafil(7.94¡¾0.39%).
2. The sequence of the degree of degradation layer depth was in descending order by Metafil, Solitaire 2, DenFil, Composan LCM. There were significant differences between Metafil and the others(p£¼0.05).
3. The sequence of the Si loss was in descending order by Metafil, Solitaire 2, Composan LCM, DenFil. There were significant differences among the materials(p£¼0.05).
4. On SEM, destruction of bonding between matrix and filler and on CLSM, the depth of degradation layer of specimen surface was observed.
5. The sequence of maximum wear depth was in descending order by Metafil, Solitaire 2, Composan LCM and DenFil. There were significant differences among the materials(p£¼0.05).
6. The correlation coefficient between Si loss and degradation layer depth (r=0.491, p£¼0.05) and Vicker¡¯s hardness number and maximum wear depth (r=-0.942, p£¼0.05) were relatively high.
These results indicate that hydrolytic degradation and wear may consider as a evaluation factors of composite resins.
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Composite resin;Wear;Hydrolytic degradation
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