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Comparative Study On Degree Of Polymerization Of Visible Light-Cured And Chemically Cured Sealing

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Abstract

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±¹³»¿¡¼­ ½ÃÆǵǴ ±¤ÁßÇÕÇü Àü»öÀç 4Á¾°ú È­ÇÐÁßÇÕÇü Àü»öÀç 2Á¾À» ÀÌ¿ëÇÏ¿´À¸¸ç ½ÇÇèÀ»
À§ÇØ ±¤ÁßÇÕÇü Àü»öÀ縦 Á¶»ç½Ã°£¿¡ µû¶ó 4±ºÀ¸·Î ³ª´©°í °¢ ±º´ç 3°³ÀÇ ½ÃÆíÀ», È­ÇÐÁßÇÕ
Çü Àü»öÀç´Â Àç·á´ç 3°³ÀÇ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´´Ù. Àü»öÀçÀÇ ÁßÇÕ ÈÄ Ç¥¸é¿¡ Çü¼ºµÇ´Â ¹ÌÁßÇÕÃþ
ÀÇ µÎ²²¸¦ ÃøÁ¤Çϱâ À§ÇØ ±¤ÁßÇÕÇü Àü»öÀç 20¥ìl¸¦ slide glass¿¡ ¶³¾î¶ß¸®°í 0.08mmÀÇ µÎ
²²°¡ µÇµµ·Ï spacer¸¦ À§Ä¡½ÃŲ ´ÙÀ½ ´Ù¸¥ slide glass·Î µ¤Àº ÈÄ Clamp·Î °íÁ¤ÇÏ¿´´Ù. ±¤¿ø
Á¶»ç½Ã°£¿¡ µû¸¥ ¹ÌÁßÇÕÃþÀÇ µÎ²²Â÷À̸¦ °üÂûÇϱâ À§ÇØ °¢±º¿¡ ´ëÇØ 10, 20, 40, 60ÃÊ°£ ±¤
¿øÀ» Á¶»çÇÏ¿´À¸¸ç È­ÇÐÁßÇÕÇü Àü»öÀç´Â Á¦Á¶È¸»çÀÇ Áö½Ã´ë·Î È¥ÇÕÇÑ ÈÄ °°Àº ¹æ¹ýÀ¸·Î ½Ã
ÆíÀ» Á¦ÀÛÇÏ¿´´Ù. ÁßÇÕ 10ºÐ ÈÄ ±¤ÇÐ Çö¹Ì°æÀ» ÀÌ¿ëÇÏ¿© 200¹è È®´ë »óÅ¿¡¼­ °¢ ½ÃÆí´ç ¼¼
ºÎÀ§¿¡¼­ ¹ÌÁßÇÕÃþÀÇ µÎ²²¸¦ ÃøÁ¤ÇÏ¿´´Ù. Àü»öÀçÀÇ ÁßÇÕµµ¸¦ ÃøÁ¤Çϱâ À§ÇØ ¹ÌÁßÇÕÃþÀÇ µÎ
²² ÃøÁ¤ ¶§¿Í °°Àº ¹æ¹ýÀ¸·Î ½ÃÆíÀ» Á¦ÀÛÇÏ¿´À¸¸ç spacerÀÇ µÎ²²´Â 0.02mm¿´´Ù. FTIR
spectroscopy¸¦ ÀÌ¿ëÇÏ¿© ±¤¿ø Á¶»ç½Ã°£¿¡ µû¸¥ ±¤ÁßÇÕÇü Àü»öÀçÀÇ ÁßÇÕµµÀÇ Â÷ÀÌ¿Í È­ÇÐÁß
ÇÕÇü Àü»öÀçÀÇ ÁßÇÕµµ¸¦ ÃøÁ¤, ºñ±³ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ¹ÌÁßÇÕÃþÀÇ µÎ²²´Â ±¤ÁßÇÕÇü Àü»öÀç°¡ 6.33¡­13.89¥ìm, È­ÇÐÁßÇÕÇüÀº 67.11¡­75.00¥ìm ¹ü
À§·Î¼­ ±¤ÁßÇÕÇü Àü»öÀçÀÇ ¹ÌÁßÇÕÃþÀÇ µÎ²²°¡ È­ÇÐÁßÇÕÇüº¸´Ù ÀÛ°Ô ³ªÅ¸³µ´Ù(p<0.001).
2. ±¤ÁßÇÕÇü Àü»öÀç¿¡¼­ ±¤¿ø Á¶»ç½Ã°£À» Áõ°¡½ÃÄ×À» ¶§ ConciseÀÇ 10ÃÊ ±º°ú 20ÃÊ ±º»çÀÌ
¸¦ Á¦¿ÜÇÑ ¹ÌÁßÇÕÃþÀÇ µÎ²²Â÷ÀÌ¿¡´Â À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù(p<0.01).
3. ±¤ÁßÇÕÇü Àü»öÀç¿¡¼­ ±¤¿ø Á¶»ç½Ã°£À» Áõ°¡½ÃÄ×À» ¶§ ³ªÅ¸³­ ÁßÇÕµµÀÇ Áõ°¡´Â Pit &
Fissure Sealant¿Í Teethmate-AÀÇ 10ÃÊ ±º°ú 20ÃÊ ±º »çÀÌ¿¡¼­ À¯ÀÇÂ÷°¡ ÀÖ¾ú´Ù(p<0.01).
4. ±¤ÁßÇÕÇü Àü»öÀçÀÎ Teethmate-A¿Í È­ÇÐÁßÇÕÇüÀÎ Fissureseal°ú Hi-PolÀº ´Ù¸¥ ÀåÁßÇÕÇü
Àü»öÀç¿¡ ºñÇØ ÁßÇÕµµ°¡ ³ô°Ô ³ªÅ¸³µ´Ù(p<0.01).
#ÃÊ·Ï#
The purpose of this study was to assess the thickness of unpolymerized layers on
sealants and to estimate the degree of polymerization of sealants. In this study,
materials used were four kinds of visible light-cured sealants and two kinds of
chemically cured sealants. The thickness of unpolymerized layer was assessed by light
microscope and the degree of polymerization was analysed by FTIR spectroscopy and
following results were obtained.
1. The thickness of unpolymerized layers ranged from 6.33 to 13. 89 §­ in light cured
sealants and from 67.11 to 75.00§­ in chemically cured sealants, and the thickness of
unpolymerized layer of light cured sealants were thinner than those of chemically cured
sealants(p<0.001) .
2. As the exposure time increased, the differences of thickness of unpolymerized layers
in light cured sealants were statistically insignificant except differences between 10
seconds group and 20 seconds group of Concise(p<0.01) .
3. As the exposure time increased, the increases of degree of polymerization between 10
seconds group and 20 seconds group of Pit & Fissure Sealant and Teethmate-A were
statistically significant(p<0.01) .
4. The degree of polymerization of Teethmate-A, Fissureseal and Hi-Pol was greater
than that of other visible light cured sealants(p<0.01) .

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