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THE INFLUENCE OF CURING WITH LIGHT TRANSMITTING WEDGE INSERTED INTO THE COMPOSITE RESIN BODY ON THE DEGREE OF MICROLEAKAGE AND MICROHARDNESSeatuh : Yong-Seok Suh, Yong-Kee Kim, Jong-Soo Kimesosock : Department of Pediatric Dentistry, School ofDentistry,

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Abstract

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µ¿À̶ó ÇÏ´õ¶óµµ ÁßÇÕ°úÁ¤¿¡¼­ ÃæÀü¹°ÀÇ ½ÉÃþ³»ºÎ¿¡ ±¤¼±À» Á÷Á¢ µµ´Þ½ÃÅ°´Â ¹æ¹ýÀÌ ÀÖ´Ù¸é
±âÁ¸ÀÇ ÀûÃþ ÁßÇÕ¹ý¿¡ ºñÇÏ¿© ¿ì¼öÇÑ ÁßÇÕÁ¤µµ¿Í ¹Ì¼¼ ´©Ãâ Á¤µµ¸¦ ³ªÅ¸³¾ °ÍÀ̶ó´Â °¡¼³À»
°ËÁõÇϱâ À§ÇÑ °ÍÀ̾ú´Ù. °¢ ½ÇÇèÁ¶°ÇÀÇ ÁßÇÕµµ¿¡ °üÇÑ Æò°¡´Â ÁßÇÕµÈ ·¹ÁøÀÇ Ç¥Ãþ°ú ±âÀú
ºÎ ¹× ³»Ãø¸éÀÇ ¹Ì¼¼ °æµµ¸¦ ÃøÁ¤ÇÏ¿© ºñ±³ÇÏ°í, ¾Æ¿ï·¯ V±Þ ·¹Áø ¼öº¹¹°ÀÇ º¯¿¬¿¡ ³ªÅ¸³ª
´Â ¹Ì¼¼ ´©Ãâ Á¤µµ¸¦ »ö¼ÒħÅõ Æò°¡¹æ¹ýÀ¸·Î ºÐ¼®ÇÔÀ¸·Î½á ½ÃÇàÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò
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1. ÁßÇÕ¹æ¹ý¿¡ °ü°è¾øÀÌ »óÃþ Ç¥¸éÀ¸·ÎºÎÅÍÀÇ °Å¸®°¡ Áõ°¡ÇÒ¼ö·Ï ¹Ì¼¼ °æµµ´Â Àü¹ÝÀûÀ¸·Î
°¨¼ÒÇÏ´Â ¾ç»óÀ» º¸¿´À¸³ª »óÃþÇ¥¸é°ú »óºÎ(1§® ÁöÁ¡)ÀÇ °æµµ´Â À¯ÀÇÂ÷¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù
(p>.05).
2. ±íÀÌÀÇ Áõ°¡¿¡ µû¸¥ ¹Ì¼¼ °æµµ °¨¼Ò ¾ç»óÀº Àü¹ÝÀûÀ¸·Î ¥°, ¥±±ºÀÌ °¡Àå ¶Ñ·ÇÇÏ¿´°í
¥², V±ºÀÌ °¡Àå ¹Ì¾àÇÏ¿´´Ù.
3. ³»Ãø ÇϺÎ(3§®)¿Í ±âÀú¸é¿¡¼­´Â ¥°, ¥±±ºÀÌ ¥², ¥³, V±º¿¡ ºñÇØ ÇöÀúÈ÷ ³·Àº ¹Ì¼¼ °æµµ
¸¦ ³ªÅ¸³Â´Ù. ¥³, V±º °£ÀÇ ºñ±³¿¡¼­´Â ¥²±ºÀÌ V±º¿¡ ºñÇØ ³·Àº °æµµ¸¦ º¸¿´À¸³ª(p<.05),
¥²±º°ú´Â À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù(p>.05).
4. ¸ðµç ±º¿¡¼­ Ä¡ÀºÃø º¯¿¬ÀÌ ±³ÇÕ¸éÃøº¸´Ù ³ôÀº ¹Ì¼¼ ´©Ãâ ¾ç»óÀ» ³ªÅ¸³Â´Ù.
5. ÃøÁ¤µÈ ¹Ì¼¼ ´©ÃâÀÇ Æò±Õ°ª(%)Àº ¥°, ¥±, ¥², ¥³, V ±ºÀÇ ¼ø¼­·Î ³ô°Ô ³ªÅ¸³µÀ¸¸ç, Åë°è
ÇÐÀû À¯ÀÇÂ÷´Â ¾çÃø º¯¿¬ ¸ðµÎ ¥³-V±º°£À» Á¦¿ÜÇÑ ¸ðµç ±º°£¿¡¼­ ¹ß°ßµÇ¾ú´Ù(p<.05).
6. ÀÌ»óÀÇ °á°ú¸¦ Åä´ë·Î ÇÑ´Ù¸é, ±íÀº ¿Íµ¿À» ±¤ÁßÇÕÇü ·¹ÁøÀ¸·Î ¼öº¹ÇÏ´Â °æ¿ì¿¡ ÀÏ°ý-
ÁßÇÕ¹ýÀÇ »ç¿ëÀº ÇÇÇؾßÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù. º» ½ÇÇè¿¡¼­ ÀûÃþ ÁßÇÕ¹ý°ú ºñ±³µÈ ±¤ Àü´Þ ½û
±â »ðÀÔ¹ýÀÇ È¿°ú´Â ƯÈ÷ ¹Ì¼¼ ´©Ã⠸鿡¼­ ¿ì¼öÇÑ °ÍÀ¸·Î Æò°¡µÇ¾î ÀÓ»óÀû¿ëÀÇ °¡´É¼ºÀº
ÃæºÐÈ÷ ÀÎÁ¤µÇ³ª º¸´Ù ¸¹Àº ¿¬±¸ÀÇ ¼±ÇàÀÌ ¿ä±¸µÈ´Ù.
#ÃÊ·Ï#
The main purpose of this study was to evaluate the effect of dentin with various
pretreatment application time on the dentin surface structure and the bond strength of
glass ionomer restorative matrials between primary and permanent tooth. There are
difference of composition, structure and pretreated effect of dentin conditioning between
the primary and permanent teeth. Inspire of thease fact, we used the same application
time of permanent tooth.
This study intends to determine the most effective application time using SEM
analysis of the surface change by dentin conditioning.
Forty five intact primary and permanent teeth were splited mesiodistally with
seperating diamond disk. Each eight specimens were prepared for shear bond strength
test. (randomely decided eight group as follows : )
group I conditioning for five seconds
group ¥± conditioning for ten seconds
group ¥² conditioning for fifteen seconds
group IV conditioning for twenty seconds
Additional specimens were prepared to SEM analysis.
The result are as follows :
1. Primary teeth are higher shear bond strength in group I and group ¥±.
2. There was no statistically significant difference between primary and permanent
teeth in group ¥² and group IV.
3. In SEM analysis, smear layer removal by dentin pretreatment of primary teeth was
faster than permanent teeth.
Primary teeth may require shorter pretreatment time of dentin for G-I restoration than
that of permanent teeth.

Å°¿öµå

Dentin conditionioing Smear layer; Shear bond strength; Dentinal tubule.;

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