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THE SHEAR BOND STRENGTHS OF COMPOSITE RESINS TO GLASS IONOMER CEMENTS BY SURFACE TREATMENT AND ELAPSED TIME

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Abstract

°á·Ð
º» ¿¬±¸´Â ±¤ÁßÇÕ GIC¸¦ ÃæÀüÇÑ ÈÄ °æÈ­½Ã°£ ¹× Ç¥¸éó¸® ¹æ¹ý¿¡ µû¶ó º¹ÇÕ·¹Áø°ú °áÇÕ
½ÃŲ ÈÄ ±× Àü´Ü°áÇÕ°­µµ¸¦ ÃøÁ¤ºñ±³ÇÔÀ¸·Î½á ÀÌÀåÀç ¹× ¼öº¹Àç·Î¼­ ¹Ù¶÷Á÷ÇÑ Àç·á ¹× ½Ã¼ú
¹æ¹ýÀ» ±Ô¸íÇÒ ¸ñÀûÀ¸·Î ½ÃÇàÇÏ¿´´Ù. ±¤ÁßÇÕ GIC´Â ÀÌÀå¿ë°ú ÃæÀü¿ëÀ¸·Î ±¸ºÐÇÏ¿©
Vitrobond¿Í Fuji ¥± LC¸¦ »ç¿ëÇÏ¿´À¸¸ç À̸¦ »êºÎ½Ä ¹× sandblasting¿©ºÎ¿¡ µû¶ó ºÐ·ùÇÏ¿´
°í, GIC ÃæÀüÈÄ Ç¥¸é󸮸¦ ½ÃÇàÇϱâ±îÁöÀÇ ½Ã°£¿¡ µû¶ó °¢°¢ ÀçºÐ·ùÇÏ¿´´Ù. °¢ ½ÇÇ豺´ç
10°³¾¿ 120°³ÀÇ ±¤ÁßÇÕÇü GIC ÃæÀü½ÃÆíÀ» Á¦ÀÛÇÏ¿© ½Ã°£ °æ°ú¿¡ µû¶ó °¢°¢ Ç¥¸éó¸®ÇÑ ÈÄ
·¹ÁøÁ¢ÂøÁ¦¸¦ µµÆ÷ÇÏ°í ·¹Áø°ú °áÇÕ½ÃÄÑ GIC¿Í ·¹Áø°£ÀÇ Àü´Ü°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÑ °á°ú ´ÙÀ½
°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. º¹ÇÕ·¹Áø°úÀÇ Àü´Ü°áÇÕ°­µµ´Â ÃæÀü¿ë GICÀÎ Fuji ¥± LC·Î ÃæÀüÈÄ 1ÀÏ °æ°úÈÄ
sandblastingÀ¸·Î Ç¥¸éó¸®ÇÑ FSI±º¿¡¼­ °¡Àå ³ô¾Ò°í, 7ÀÏ °æ°úÈÄ Ç¥¸éÀ» »êºÎ½ÄÀ¸·Î ó¸®
ÇÑ FE7±ºÀÌ °¡Àå ³·¾ÒÀ¸¸ç ¾ç ±º°£¿¡´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÎÁ¤µÇ¾ú´Ù(P<0.01).
2. Ç¥¸é󸮹æ¹ý¿¡ µû¸¥ ·¹Áø°úÀÇ °áÇÕ·ÂÀº Vitrebond¿¡¼­´Â ´ëü·Î »êºÎ½Ä(VE)±ºÀÇ °áÇÕ
·ÂÀÌ sandblasting(VS)±º¿¡ ºñÇØ ³ô¾ÒÀ¸¸ç, Fuji ¥± LC¿¡¼­´Â sandblasting(FS)±ºÀÌ »êºÎ½Ä
(FE)±ºº¸´Ù °áÇÕ·ÂÀÌ ³ô°Ô ³ªÅ¸³µ´Ù (P<0.05).
3. ½Ã°£°æ°ú¿¡ µû¸¥ °áÇÕ·ÂÀÇ º¯È­¿¡ À־ Vitrebond´Â ÃæÀüÈÄ 1ÀÏ °æ°ú±º¿¡¼­ ´ëü·Î
°áÇÕ·ÂÀÌ ³ôÀº °ÍÀ¸·Î Á¶»çµÇ¾ú°í, Fuji ¥± LC´Â Ç¥¸é󸮹æ¹ý¿¡ µû¶ó »êºÎ½ÄÀÇ °æ¿ì ÃæÀü
Á÷ÈÄ °áÇÕÇÑ (FE0)±º¿¡¼­, sandblastingÀ» ½ÃÇàÇÑ °æ¿ì´Â 1ÀÏ °æ°ú(FS1)±º¿¡¼­ °áÇÕ·ÂÀÌ ³ô
°Ô ³ªÅ¸³µ´Ù (P<0.05).
#ÃÊ·Ï#
For the purpose of establishing the most appropriate method of bonding between glass
ionomer liners and composite resin and comparing the materials for sandwich technique
an experiment was performed to measure the shear bond strengths between the two
with the variables in the surface treatment of liners and elapsed time till composite
buildup. Materials used were Vitrebond and Fuji ¥± LC, each as the restorative and liner
respectively, and each group was subdivided by surface treatment (acid etching and
sandblasting) and time elapsed from GIC filling to composite buildup (immediately, 1
day, 7 days), consisting 12 group as a whole. Each subgroup was composed of 10
specimens and the shear bond strength between GIC liners and composite resin was
measured under UTM and analyzed.
The result were as follows :
1. The shear bond strength between two materials was highest when initially filled
Fuji ¥± LC was sandblasted after 1 days and composite built-up (Group FS1). And the
lowest value was found when GIC was acid-etched after 7 days and composite built-up
(Group FE7). Significant difference was found between the two groups.(P<0.01)
2. In regard of surface treatment of GI liners, acid-etched group (VE) showed higher
bond strength than sandblasted group (VS) for Vitrebond. But, the reverse was true for
Fuji ¥± LC.(P<0.05)
3. In regard to the time elapsed from GI filling to composite buildup, the group of 1
day elapse showed relatively higher strength for Vitrebond. On the contrary, immediate
buildup group (FE0) was stronger for acid-etched group and 1 day elapse group (FS1)
was higher for sand-blasted group in Fuji ¥± LC. (P<0.05)

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