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KMID : 0358919960230040906
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Journal of the Korean Academy of Pedodontics
1996 Volume.23 No. 4 p.906 ~ p.914
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A comparative study of microhardness of dual-cure and light-cure pit and fissure sealant
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Abstract
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Due to the various reason, sealing of pit & fissure might be imperfect. One of these reason can be the fracture of sealant material because of the low hardness value of sealing material. The purpose of this in vitro study was to evaluate the
microhardness of two different curing type pit and fissure sealants : Dual-cure and Light-cure.
@ES The result from the present study can be summarized as follows :
@EN 1. All pit and fissure sealants that used in this study showed statistically significant difference in their microhardness o upper and lower surface. (P<0.05)
2. Except of lower surface of teethmate, microhardness of 40-second curing sealant was statistically higer than that of 20-second curing sealant. (P<0.05)
3. In comparison of sealants, microhardness of dua-cure sealant was statistically higher than that of light-cure sealant.
Above results suggest that the use of dual-cure sealant and longer curing time are recommended.
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