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A STUDY ON THE EFFECT OF GLASS INSERTS ON MARGINAL LEAKAGE OF COMPOSITE RESIN RESTORATION

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Abstract

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1. ±Û¶ó½º Àμ­Æ®±ºÀÇ ¹Ì¼¼´©ÃâÀº ´Ù¸¥ ¼¼±ºº¸´Ù Àû°Ô ³ªÅ¸³µ°í, ´ÜÃþÁßÇÕ±º°ú ÀüÁßÇÕ º¹ÇÕ
·¹Áøº¼±º°ú´Â Åë°èÇÐÀû À¯ÀÇÂ÷°¡ ÀÖ¾úÀ¸³ª(P<.05), ÀûÃþÁßÇÕ±º°ú´Â Åë°èÇÐÀû À¯ÀÇÂ÷°¡ ¾ø¾ú
´Ù(P>.05).
2. ÁÖ»ç ÀüÀÚÇö¹Ì°æ °üÂû °á°ú, ´ÜÃþÁßÇÕ±º°ú ÀüÁßÇÕ º¹ÇÕ·¹Áøº¼±º¿¡¼­´Â Ä¡Áú°ú ·¹Áø»çÀÌ
ÀÇ Æ´ÀÌ Å« °ÍÀ» °üÂûÇÒ ¼ö ÀÖ¾ú°í, Ä¡Àº-±³ÇÕ ÀûÃþÁßÇÕ±º¿¡ ºñÇØ ±Û¶ó½º Àμ­Æ®±ºÀº Ä¡Áú
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¿¬º¸´Ù´Â ±³ÇÕº¯¿¬¿¡¼­ ¿ì¼öÇÑ Á¢ÇÕÇüŸ¦ º¸¿´´Ù.
3. ±Û¶ó½º Àμ­Æ®±º°ú ÀûÃþÁßÇÕ±ºÀÌ ¹Ì¼¼´©Ãâ Ãø¸é¿¡¼­ ¿ì¼öÇÑ ÃæÀü¹æ¹ýÀ¸·Î Æò°¡µÇ¾úÀ¸³ª,
µÎ ÃæÀü ¹æ¹ý°£ÀÇ ¿ì¿­À» ÆÇÁ¤ÇÔ¿¡ ÀÖ¾î ½ÇÇèÀÇ °á°ú¿Ü¿¡µµ ÀÓ»óÀû ÆíÀǼº µîÀÇ ¿ä¼Ò ¶ÇÇÑ
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#ÃÊ·Ï#
In this study, we tried to compare the effect of glass inserts on marginal leakage of
composite resin restoration by comparing with that of several filling methods. The
results obtained from this experiment were as follows ;
1. The degree of microleakage measured in glass inserts group was generally lower
than that of the other groups. Statistical analysis showed significant intergroup
difference between glass inserts and one complete unit, pre-polymerized composite resin
ball(P<.05), but no significant difference between groups of glass inserts and
increments(P<.05).
2. Scanning electron microscopic observation showed relatively large gap around
resin-tooth interface in specimens restored the method of using the one complete unit
and pre-polymerized composite resin ball whereas a denser and tighter was observed in
increments and glass inserts group. Generally the gingival margin was shown to have
better bonds than the occlusal margin in specimen of all groups.
3. In the present experiment, methods using the techniques of glass inserts and
increments were evaluated to be superior to those of one complete unit, pre-polymerized
composite resin ball in the aspect of microleakage. However, the result of this study
could not determine the superiority of the use of glass inserts over incremental method.
Besides the physical properties observed in this study, the practical aspect of clinical
convenience should be considered in determining the selection of material.

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