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A STUDY ON THE BOND STRENGTH AND ANTICARIOGENIC EFFECT OF FLUORIDE-CONTAINING ORTHODONTIC RESIN

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Abstract

°á·Ð
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°ú Æ÷ÇÔµÇÁö ¾ÊÀº ±³Á¤¿ë resinÀ» »ç¿ëÇÏ¿© ´ë»óÄ¡¾ÆÀÇ ¼ø¸éÁß¾Ó ºÎÀ§¿¡ µ¿ÀÏÇÑ Å©±âÀÇ
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1. Àΰø¿ì½Ä À¯¹ß ¿ë¾×¿¡¼­ ó¸®µÈ ¿¬¸¶Ç¥º»À» Æí±¤Çö¹Ì°æÀ¸·Î °üÂûÇÑ °á°ú ¥°±º°ú ¥±±º
ÀÇ ¸ðµç Ç¥º»ÀÌ ÀüÇüÀûÀÎ Ãʱ⠿ì½Äº´¼ÒÀÇ ¼Ò°ßÀ» ³ªÅ¸³»¾ú°í, ¥°±ºÀº resin°úÀÇ °æ°èºÎÅÍ
¿ì½ÄÀÌ ½ÃÀ۵ǾúÀ¸³ª ¥±±ºÀº resin¸éÀ¸·ÎºÎÅÍ ´Ù¼Ò ¶³¾îÁ®¼­ ½ÃÀ۵Ǵ ¾ç»óÀÌ °üÂûµÇ¾ú´Ù.
2. ¥°±º°ú ¥±±ºÀÇ Æò±Õ ¿ì½Äº´¼Ò ±íÀÌ´Â °¢°¢ 81.00¡¾16.63, 63.00¡¾14.94¥ìm¿´À¸¸ç Åë°èÇÐ
Àû À¯ÀÇÂ÷¸¦ º¸¿´´Ù(p<0.05).
3. Àü´Ü°­µµ ÃøÁ¤Ä¡´Â 1ÀÏ ¹× 2ÁÖ±º ¸ðµÎ¿¡¼­ ¥±±ºÀÌ ¥°±ºº¸´Ù ´Ù¼Ò ³ô°Ô ³ªÅ¸³µÀ¸³ª Åë
°èÇÐÀû À¯ÀÇÂ÷´Â ¾ø¾ú´Ù(p<0.05).
4. 1ÀÏ ¹× 2ÁÖ±ºÀÇ Àü´Ü°­µµ ÃøÁ¤ÀÇ ºñ±³¿¡¼­ 2ÁÖ ±ºÀº 1Àϱº¿¡ ºñÇØ ÇöÀúÇÑ °¨¼Ò¸¦ ³ªÅ¸
³Â´Ù(p<0.01).
5. Àü´Ü°­µµ ÃøÁ¤ÈÄ ÀüÀÚÇö¹Ì°æÇÏ¿¡¼­ Ç¥º»¿¡ ºÎÂøµÇ¾ú´ø Ä¡¾ÆÇ¥¸éÀ» °üÂûÇÑ °á°ú ¥°±ºÀº
adhesive failure, ¥±±ºÀº enamel detachment°¡ ÁÖÁ¾À» ÀÌ·ç¾ú´Ù.
#ÃÊ·Ï#
The frequent occurrence of enamel decalcification around orthodontic bands or brackets
still continues to be a problem for the clinicians. One of the numerous procedures
suggested to overcome those problems would be the use of fluoride-containing
orthodontic resin.
The purpose of this study was to compare the anticariogenic potential and the shear
bond strength of two orthodontic resins : Group ¥° resin containing fluoride and Group
¥± resin with no fluoride. Histological observations were performed through polarizing
light microscope and bond strength measurements were done using Instron. Additional
evaluation of debonded surface after strength measurement was done by SEM.
Group ¥± generally showed superior anticariogenic effect to Group ¥°, positively
demonstrating the beneficial effect of fluoride in lowering caries susceptibility.
Both groups showed significantly decreased shear bond strength in 4-day specimen
when compared to 1-day specimen. However, no significant differences between groups
could be found in terms of the forces required for debonding.
In estimation of bonding area that failed, group ¥° predominantly showed the pattern
of adhesive failure whereas enamel detachment pattern in group ¥±.
The results of the present study strongly suggest the successful use of
fluoride-containing othodontic resin in a sense of efforts to protect enamel from possible
demineralization.

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