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Study on Photopolymerization Behavior of Dental Restorative Materials by FT-IR and DPC

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Á¤Âù¹®/Chan-Moon Chung ±èÁß°ï/ÃÖÁØÈ£/ÀåµÎ¿Á/±è°æ³²/±è±¤¸¸/Joong-gon Kim/Jun-Ho Choi/Doo-Ok Jang/Kyoung-Nam Kim/Kwang-Mahn Kim

Abstract

°á·Ð
ÄÄÆ÷¸Ó´Â ÁÖ·Î ±¤ÁßÇÕ¿¡ ÀÇÇØ ±â°èÀû ¼ºÁúÀ» ¾ò´Â´Ù°í º¼ ¼ö ÀÖÀ¸¸ç µû¶ó¼­ ±¤ÁßÇÕ °Åµ¿
À» ÀÌÇØÇÒ ÇÊ¿ä°¡ ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â Àû¿Ü¼± Èí¼ö ºÐ±¤¹ý ¹× DPC¹ýÀ» »ç¿ëÇÏ¿© Dyract¿Í
Compoglass,µÎ ÄÄÆ÷¸Ó Á¦Ç°ÀÇ ±¤ÁßÇÕ °Åµ¿À» Çؼ®ÇÏ¿´À¸¸ç ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. Àû¿Ü¼± Èí¼ö ºÐ±¤¹ýÀ¸·ÎºÎÅÍ, µÎ Á¦Ç°¿¡ ÇÔÀ¯µÈ ¸ÞŸũ¸±·¹ÀÌÆ® ´Ü·®Ã¼ÀÇ ¶óµðÄ® ÁßÇÕ
¹ÝÀÀÀÌ ±¤ÁßÇÕ ¹ÝÀÀÀÇ ÁÖµÈ ±âÀüÀÓÀÌ È®ÀεǾú°í 60ÃÊ°£ÀÇ ±¤Á¶»ç ÈÄ ÃøÁ¤µÈ ÃÖÁ¾ ÀüȯÀ²Àº
Dyract°¡ 67%, Compoglass°¡ 59% À̾úÀ¸¸ç ÀϹÝÀûÀÎ º¹ÇÕ¼öÁö Á¦Ç°ÀÇ ±¤ÁßÇÕ ÀüȯÀ² ¹ü
À§³»¿¡ ÀÖ¾ú´Ù.
2. DPC ºÐ¼®¿¡¼­, ´Ù°ü´É¼º ´Ü·®Ã¼ÀÇ ±«»óÁßÇÕ¿¡¼­ ÈçÈ÷ ³ªÅ¸³ª´Â ÀüÁßÇÕ ¼ÓµµÀÇ ÀÚµ¿°¡
¼Ó ¹× ÀÚµ¿°¨¼Ó Çö»óÀÌ °üÂûµÇ¾ú´Ù.
3. Àü¹ÝÀûÀ¸·Î Dyract°¡ Compoglass¿¡ ºñÇØ ±¤ÁßÇÕ ¹ÝÀÀÀÌ ´õ ½Å¼ÓÇÏ°Ô ÁøÇàµÇ¸ç ´õ ³ô
Àº ÀüȯÀ²À» ³ªÅ¸³Â´Ù.
#ÃÊ·Ï#
Mechanical properties of composers would be obtained mainly by photopolymerization
by visible light irradiation. Protopolymerization behavior of two commercial compomers
was investigated by FT-IR spectral analysis and differential photocalorimetry(DPC).
The results obtained were as follow:
1. From FT-IR analysis, it was found that the compomer products were photocured
mainly by radical polymerizations of multifunctional methacrylate monomers. Final
conversion values of the polymerizations after exposure to visible light for 60 sec were
67% for Dyract and 59% for Compoglass.
2. Upon exposure the compomers exhibited autoacceleration and autodeceleration,
which are usually observed in bulk polymerizations of multifunctional monomers.
3. Dyract showed higher rate of polymerization and conversion of double bond than
Compoglass.

Å°¿öµå

compomer; degree of conversion; FT-IR; differential photocalorilnetry(DPC);

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