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유리 섬유 의치상 레진 강화재와 열 순환이의치상 굽힘 강도에 미치는 영향

The Effect of Glass Fiber Reinforcing Materials and Thermocycling on the Transverse Strength of Denture Base Resin

조인호|진성은
대한턱관절교합학회 (Korean academy of stomatognathic function and occlusion)|2013.12|구강회복응용과학지 (Journal of Dental Rehabilitation and Applied Science)|제29권 제4호|pp. 327-336|DOI http://dx.doi.org/10.14368/jdras.2013.29.4.327

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참고문헌

키워드

Glass fiberThermocyclingFlexural strength유리 섬유굽힘 강도열 순환의치상 강화재의치상 파절Reinforcing materialsDenture fracture
주제분류치의학

초록

본 연구에서는 두 종류의 유리 섬유 의치상 강화재인 Quarts SplintTMMesh와 SES MESH􀋓의 의치상 보강 효과와열 순환이 의치상의 굽힘 강도와 강화재의 강화 효과에 미치는 영향을 알아보고자 하였다. 시편은 2.5 × 10.0 ×65.0 mm 크기로 강화재를 사용하지 않은 대조군, 금속 격자 강화재, Quarts SplintTMMesh, SES MESH􀋓로 보강한시편을 각각 20개씩 제작하였으며 그 중 10개에는 열 순환을 시행하였다. 3점 굽힘 실험을 시행하여 의치상의굽힘 강도를 측정하였다. Quarts SplintTMMesh와 SES MESH􀋓로 강화한 군은 대조군보다 유의하게 높은 굽힘 강도를 나타내었으며(P<.05), 금속 격자 강화재로 보강한 군보다 유의하게 낮은 굽힘 강도를 나타내었다(P<.05). 모든 군에서 열 순환을 시행한 경우가 열 순환을 시행하지 않은 경우에 비해 낮은 굽힘 강도를 나타내었지만 대조군에서만 유의한 차이를 나타내었다(P<.05).

Abstract

This study aimed to investigate the reinforcing effect of two kinds of glass fiber, Quarts SplintTM Mesh and SES MESH􀋓and to evaluate the effect of the thermocycling on the transverse strength of the denture base and on the reinforcing effect of the reinforcements. 20 specimens of the size of 2.5 × 10.0 × 65.0 mm were fabricated for each group; control group,metal mesh reinforcement group, Quarts SplintTM Mesh reinforcement group and SES MESH􀋓 reinforcement group. To find the difference made by the thermocycling, 10 specimens of each reinforcement group were treated by thermocycling. 3-point bending test was performed to measure the transverse strength of the denture base resin. The specimens reinforced with SES MESH􀋓 and Quarts SplintTM Mesh showed significantly higher transverse strength than the control group (P<.05), and significantly lower transverse strength than the specimens reinforced with the metal mesh (P<.05). Thermocycled specimens were lower in transverse strength than non-thermocycled specimens in the control group, metal mesh group, Quarts SplintTM Mesh group and SES MESH􀋓 group, however significant difference (P<.05) was found only in the control group.

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