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A STUDY ON THE BOND STRENGTHS BETWEEN GLASS IONOMER CEMENT BASES AND COMPOSITE RESINS

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Abstract

º» ¿¬±¸´Â ÇöÀç ³Î¸® ¾²ÀÌ°í ÀÖ´Â sandwich techniqueÀ» ÀÓ»ó¿¡ Àû¿ëÇÔ¿¡ À־, GIC ÀÌÀåÀç¿¡ ´ëÇÑ ÀÌÁßÁßÇÕÇü ·¹Áø°ú ºñ±³Àû ±Ù·¡¿¡ ¼Ò°³µÈ compomerÀÇ °áÇÕ·ÂÀ» ÃøÁ¤ÇÏ¿© ±âÁ¸ÀÇ ±¤ÁßÇÕÇü, È­ÇÐÁßÇÕÇü º¹ÇÕ·¹Áø°ú ºñ±³ÇÏ°í, °¡Àå ¿í¼öÇÑ °áÇÕ·ÂÀ» º¸ÀÌ´Â glass ionomer-composite resinÀÇ Á¶ÇÕÀ» ¹àÇô³»°íÀÚ ½ÃµµµÇ¾ú´Ù.
ÀÌÀå¿ë Àç·á·Î´Â, ±¤ÁßÇÕÇü GICÀÎ Vitrebond¿Í È­ÇÐÁßÇÕÇü GICÀÎ Ketac-filÀ» »ç¿ëÇÏ¿´À¸¸ç , ÀÌ µÎ °¡ÁöÀÇ ÀÌÀåÀç¿¡ ´ëÇØ, ±¤ÁßÇÕÇë º¹ÇÕ ·¹ÁøÀÎ Z-100, È­ÇÐÁßÇÕÇü º¹ÇÕ ·¹ÁøÀÎ Clearfil, compomerÀÎ Dyract, ±×¸®°í ÀÌÁßÁßÇÕÇü º¹ÇÕ ·¹ÁøÀÎ Bis-core¸¦ ÃàÁ¶ÇÏ¿© °¢ ±º´ç 10°³¾¿, ÃÑ 80°³ÀÇ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´´Ù.
Á¦ÀÛµÈ ½ÃÆíÀº 37¡ÉÀÇ Áõ·ù¼ö¿¡ 24½Ã°£µ¿¾È º¸°üÇÑ ÈÄ, full load scale 50kg, cross-head speed 1mm/min Á¶°ÇÀÇ ¸¸´É ½ÃÇè±â¿¡¼­ ±× Àü´Ü°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿´À¸¸ç ½ÇÇè°á°ú´Â student t-test·Î °ËÁ¤ÇÏ¿´´Ù. º» ¿¬±¸ÀÇ °á°ú´Â ´ÙÀ½°ú °°´Ù.
1. Vitrebond¸¦ ÀÌÀåÀç·Î »ç¿ëÇÑ °æ¿ì, Z-100ÀÌ °¡Àå ³·Àº °áÇÕ°­µµ¸¦ º¸¿´À¸¸ç, ³ª¸ÓÁö ¼¼ Àç·á´Â °áÇÕ·ÂÀÇ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(P>0.05).
2. Ketac-filÀ» ÀÌÀåÀç·Î »ç¿ëÇÑ °æ¿ì, ClearfilÀÌ °¡Àå ³ôÀº °áÇÕ°­µµ¸¦ º¸¿´°í, Dyract, Bis-core°¡ ÁߵÀÇ °áÇÕ°­µµ¸¦, Z-100ÀÌ °¡Àå ³·Àº °áÇÕ°­µµ¸¦ º¸¿´´Ù(P<0.05).
3. ClearfilÀº Vitrebond »ó¹æ¿¡¼­´Â Ÿ Àç·áµé°ú ºñ½ÁÇÑ °áÇÕ°­µµ¸¦ º¸¿´À¸³ª, Ketac-fil »ó¹æ¿¡¼­´Â °¡Àå °­ÇÑ °áÇÕ°­µµ¸¦ º¸ÀÓÀ¸·Î½á, GIC ÀÌÀåÀçÀÇ Á¾·ù¿¡ µû¸¥ °áÇÕ·ÂÀÇ Â÷À̸¦ º¸¿´À¸³ª(P<0.05), ³ª¸ÓÁö ¼¼ Àç·áÀÇ °æ¿ì¿¡´Â Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(P>0.05).
4. Vitrebond¸¦ »ç¿ëÇÒ ¶§º¸´Ù Ketac-filÀ» ÀÌÀåÀç·Î »ç¿ëÇÒ ¶§, »óºÎ¿¡ ÃàÁ¶µÇ´Â º¹ÇÕ·¹ÁøÀÇ Á¾·ù¿¡ µû¸¥ °áÇÕ·ÂÀÇ Â÷ÀÌ°¡ ´õ Å©°Ô ³ªÅ¸³µ´Ù(P<0.05).
For the purpose of providing some suggestions in selection of filling materials used in ¢¥sandwich technique¢¥ , the bond strengths between glass ionomer cement bases and composite resins were investigated and compared.
For lining materials, ¢¥Vitrebond and `Ketac-fil¢¥ were used. Using these two as bases, 10 of each following resins were built up on the top : Z-100 (light curing resin) , Clear-fil (chemical curing resin), Bis-core (dual cure resin), Dyract (compomer) , therfore 10 specimens of each group and total of 80 specimens were made.
After storing specimens in 37t deionized water for 24 hours, the shear bond strengths were measured under universal testing machine with 50 kg of full load scale and lmm/min of cross-head speed and obtained the results as follows
1. Over Vitrebond base, Z-100 showed the lowest bond strength but the other three did not show any difference in bond strength.
2. Over Ketac-fil base, Clear-fil showed the highest bond strength followed by Dyract, Bis-core, and Z-100 showed the lowest bond strengths.
3. Whereas Clear-fil showed the similar bond strengths on the Vitrebond base as other resins, it showed the highest bond strength on Ketac-fil base, which showed some difference in bond strength by differing GIC bases.
4. The bond strengths between base materials and composite resin showed a stronger resin-dependence tendency in cases with Ketac-fil bases rather than with Vitrebond bases.

Å°¿öµå

Sandwich technique;Àü´Ü°áÇÕ°­µµ;º¹ÇÕ·¹Áø;±Û·¡½º ¾ÆÀÌ¿À³ë¸Ó ½Ã¸àÆ®;Sandwich technique;Shear bond strength;Composite resin;Glass ionomer cement

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