의치상 레진 강화재가 의치상 굽힘강도에 미치는 영향
The Effect of Reinforcing Materials on the Transverse Strength of Denture Base Resin
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초록
본 연구에서는 광중합형 석영 섬유인Quarts SplintTM Mesh를 중심으로 다양한 강화재의 의치상 보강 효과에 대해 알아보고자 하였다. 의치상 레진으로 Lucitone199Ⓡ와 QC-20을 사용하였으며 강화재로 폴리에틸렌 섬유인 RibbondⓇ, Quarts SplintTM Mesh, 금속 격자 강화재를 사용하였다. 2.0×10.0×65.0 mm 시편을 각각 10개씩 제작하였으며 2.5×10.0×65.0 mm, 3.0×10.0×65.0 mm 시편도 제작하였다. Lucitone199Ⓡ 레진은 QC-20 레진보다 높은 굽힘강도를 나타내었으며, 대조군에서 유의차를 나타내었다(p<0.05). Lucitone199Ⓡ 및 QC-20 레진으로 제작한 2.0 mm 두께 시편에서 굽힘강도는 금속 격자 강화재, Quarts SplintTM Mesh, RibbondⓇ, 대조군 순으로 감소되었다. Lucitone199Ⓡ 레진을 이용하여 제작한 두께 2.0 mm, 2.5 mm 시편에서 Quarts SplintTM Mesh로 보강한 군은 대조군보다 유의하게 높은 굽힘강도를 나타내었으며(p<0.05), 두께 3.0 mm 시편에서는 유의차가 없었다.
Abstract
The object of this study was to find out the effect of various reinforcing materials including Quarts SplintTM Mesh on the transverse strength of the denture resin. QC-20 and Lucitone199Ⓡ were used as the denture resin, and polyethylene fiber RibbondⓇ, light curing quarts fiber Quarts SplintTM Mesh, metal mesh were used as the reinforcing materials. Ten specimens were fabricated for each group and the size of specimens was 2.0×10.0×65.0 mm. To compare the effect of resin thickness, additional specimens of 2.5×10.0×65.0 mm, 3.0×10.0×65.0 mm were fabricated. In the control group, the transverse strength of Lucitone199Ⓡ was significantly higher than that of QC-20(p<0.05). Among the specimens of 2.0 mm thickness fabricated with Lucitone199Ⓡ and QC-20, they showed high transverse strength in the order of metal mesh, Quarts SplintTM Mesh, RibbondⓇ, and control group. In the specimens of 2.0 mm, 2.5 mm thickness, the transverse strength of Quarts SplintTM Mesh were significantly higher than that of QC-20(p<0.05). But in the specimens of 3.0 mm thickness, there was no significant difference.
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