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STUDY ON THE RELEASE AND REUPTAKE PATTERN OF FLUORIDE AND THE CHANGE IN BONO STRENGTH F GLASS IONOMER RESTORATIVE MATERIALS ACCORDING TO DIFFERENT TREATMENT OF DENTIN SURFACE

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Abstract

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1. ¸»·¹»êÀ¸·Î ó¸®ÇÑ »ó¾ÆÁú Ç¥¸é¿¡¼­´Â °¢ ´ëÁ¶±ºÀÇ Ç¥¸é¿¡ ºñÇØ ÀÜÀ¯¹°ÀÌ ¾ø´Â ±ú²ýÇÑ
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Àç·á°£ÀÇ ¼­·Î ´Ù¸¥ È­ÇÐÀû Á¶¼º°ú ¼ºÁú¿¡ ±âÀÎÇÑ °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù.
2. º» ½ÇÇè¿¡¼­ »ç¿ëµÈ ±Û¶ó½º ¾ÆÀÌ¿À³ë¸Ó ¼öº¹ÀçÀÇ ºÒ¼ÒÀ¯¸®´Â ½ÇÇè ±â°£ µ¿¾È Áö¼ÓÀûÀ¸
·Î ÀÌ·ç¾îÁ® ±âÁ¸ÀÇ ¿¬±¸°á°ú¿Í À¯»çÇÏ¿´À¸¸ç, ¼öº¹Àç³»·Î »ó´ç·®ÀÇ ºÒ¼Ò°¡ Èí¼öµÇ¾î ´Ù½Ã
Áö¼ÓÀûÀ¸·Î À¯¸®µÇ´Â ¾ç»óÀ» º¸ÀÓÀ¸·Î½á ¿©·¯ °¡Áö ¿äÀÎÀ¸·Î ÀÌÂ÷¿ì½Ä ÀÌȯÀ²ÀÌ ³ôÀº ¼Ò¾Æ
ȯÀÚÀÇ ¼öº¹Ä¡·á¿¡ ´õ¿í Æø³Ð°Ô »ç¿ëÇÏ¿© ÀÌ Àç·á°¡ Áö´Ï´Â ºÒ¼ÒÀÇ Áö¼ÓÀûÀÎ À¯¸®¿Í ÀúÀå°í
·Î¼­ÀÇ ÀåÁ¡À» ÃÖ´ëÇÑÀ¸·Î ÀÌ¿ëÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ÇÑ °ÍÀ¸·Î »ç·áµÈ´Ù.
#ÃÊ·Ï#
In this study, the original dentin conditioners in the kit of each experimental glass
ionomer restorative materials were used as control agent whereas 10 % maleic acid was
selected as an experimental conditioning agent. The value of maleic acid treatment in
promoting the bond strength of tested glass ionomer materials was evaluated by
measuring the dentin shear bond strength and observing the conditioned dentin surface
through scanning electron micrograph. And also the fluoride release and uptake pattern
of each glass ionomer material was analyzed quantitatively.
The results were as followed.
1. The dentin surface treated with maleic acid showed cleaner surface and more
clearly exposed dentinal tubules under scanning electron microscope when compared
with surfaces treated with the respective control dentin conditioner. However, the shear
bond strength of experimental group after treatment with maleic acid showed results of
wide range possibly due to their unique and different chemical constituents and
characteristics.
2. The fluoride release of the tested glass ionomer restorative materials lasted
throughout the experiment, thus showing similar results with the previous studies. A
large amount of fluoride were absorbed by the restorative materials and showed
continuous release. It can be thought that the advantages of continuous release of
fluoride and storage capacity of glass ionomer restoratives should be used for
restorations of children with relatively higher prevalence to secondary caries.

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