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SHEAR BOND STRENGTH OF SELF-ETCHING PRIMER SYSTEMS TO CONTAMINATED DENTIN IN PRIMARY TEETH

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Abstract

¿¬±¸¸ñÀûÀº ÀÚ°¡ºÎ½Ä ÇÁ¶óÀ̸ÓÀÇ ÀûÀÀ ½Ã±â¿¡ µû¸¥ Ÿ¾×°ú Ç÷¾× ¿À¿°¿¡ ´ëÇÑ °áÇշ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸´Â °ÍÀ̾ú´Ù. À¯Ä¡ ½ÃÆíÀ» °¢°¢ 10°³¾¿ Á¦ÀÛÇÏ¿© ´ëÁ¶±º, ÀýÂøÀü Ÿ¾× ¿À¿°, Á¢ÂøÁ¦ ÁßÇÕÈÄ Å¸¾× ¿À¿°, Á¢ÂøÀü Ç÷¾× ¿À¿°, Á¢ÂøÁ¦ ÁßÇÕÈÄ Ç÷¾× ¿À¿°µÈ »óȲÀ¸·Î 2°¡Áö Á¾·ùÀÇ ÀÚ°¡ºÎ½Ä Á¢ÂøÁ¦¿Í º¹ÇÕ·¹ÁøÀ» Àû¿ëÇÏ¿© ¸¸´É ¹°¼º ½ÃÇè±â·Î Àü´Ü°áÇÕ°­µµ¸¦ ÃøÁ¤, ºÐ¼®ÇÏ¿´´Ù. Á¢ÂøÁ¦ Àû¿ëÀü Ÿ¾× ¿À¿° (1±º)½Ã¿¡´Â ´ëÁ¶±º°ú ºñ±³ÇÏ¿© °áÇÕ·ÂÀÌ À¯»çÇϰųª ¾à°£ °¨¼ÒµÇ¾úÀ¸³ª, Åë°èÇÐÀû À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù(P>0.05). Á¢ÂøÈÄ Å¸¾× ¿À¿°(¥±±º)À̳ª Á¢Âø ÀüÈÄÀÇ Ç÷¾× ¿À¿°(¥², ¥³±º)½Ã À¯ÀÇÇÏ°Ô °áÇÕ·ÂÀÌ °¨¼ÒÇÏ¿´´Ù(P<0.01). Clearfil SE Bond°¡ AQ Bondº¸´Ù À¯ÀÇÇÏ°Ô ³ôÀº °áÇÕ°­µµ¸¦ º¸¿´´Ù(P<0.05).

The purpose of this study was to determine and compare the shear bond strength of two self-etching primer systems to primary teeth contaminated with saliva and blood. Clearfil SE Bond and AQ Bond were evaluated. One hundred specimens were made by seventy-five deciduous teeth (fifty anterior and twenty-five posterior teeth) and divided randomly into ten groups. Small flat dentinal surfaces were prepared by grinding the buccal, lingual and labial areas. Specific surface treatments were applied to each group: (1) a self-etching primer appli¡©cation(control group), ¢¥2) saliva contamination followed by primer(Group I ), (3) primer curing followed by saliva contamination (Group II ). ¢¥4) blood contamination followed by primer(Group 1{I), (5) primer curing followed by blood contamination (Group !I-). After bonding of composite resin(Z100, 3M, USA) to contaminated sample sur¡©faces and thermocycling(1.000 cycles), shear bond strengths were measured using Universal Testing hlachine(Zwick 2020, Zwick Co., Germany). The results were as follows:
1. Group I showed lower shear bond strength than control group but no statistically significant difference was found(P)0.05).
2. Group II and blood contamination group(Group 111 & IV) showed significantly lower shear bond strength than control group(P(0.01).
3. The shear bond strength of Clearfil SE Bond was significantly higher than that of AQ Bond (P(O.05).

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ÀÚ°¡ºÎ½Ä ÇÁ¶óÀ̸Ó;°áÇÕ°­µµ;À¯Ä¡;Ç÷¾× ¿À¿°;Ÿ¾× ¿À¿°;Self-etching primer;Shear bond strength;Primary teeth;Blood contamination;Saliva contamination

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