온성방법과 단면형태가 수조의 의치상 수리레진의 결합강도에 미치는 영향
THE EFFECT OF PROCESSING METHOD AND SURFACE DESIGN ON THE TRANSVERSE STRENGTH OF REPAIRED DENTURE BASE RESIN
김광남, 배태성, 한중석,
소속 상세정보
김광남 ( Kim Kang-Nam ) - 전북대학교 치과대학 치과재료학교실
배태성 ( Bae Tae-Sung ) - 전북대학교 치과대학 치과재료학교실
한중석 ( Han Jung-Suk ) - 이화여자대학교 의과대학 치과학교실 보철과
KMID : 0362419960340040665
Abstract
This stydy was designed to evaluate the effect of processing method and surface design on the transverse strenght of repaired denture base resin. Three heat-cured denture base resins(Vertex, Lucitone, Lang), one cold-cured resin(Lang), and on light-cured resin(Dentacolor gingiva material) were used for repair purpose. The specimens for 3-point flexure test were fabricated by five processing methods such as self-curing, pressure pot, boiling water, processing, and light curing. Finally to evaluate the effect of surface designs for repaired resin, three surface designs(butt, bevel, inverse bevel) were tested. Within the limit of this stydy, following conclusions were drawn. 1. Lucitone denture base material showed highest flexural strength of 131.37±2.15㎫, and there were significant differences in stength between Lucitone and other resins. 2. Between two different self curing methods, self curing repair resin, Lang, cured by pressure pot method showed highest flexural strength, 58.49±4.89㎫. 3. Among the heat cured repair resins, maximum transverse strength value of 88.69±16.60㎫ was recorded in Lucitone group cured by processing method. 4. Inverse bevel joint design showed significantly higher bond strength than butt joint group, Maximum bond strength was 59.36±1.33㎫ in inverse bevel joint design group.
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