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KMID : 0362420020400010042
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Journal of Korean Academy of Prosthodontics
2002 Volume.40 No. 1 p.42 ~ p.52
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A Study on the Bond Strength of Reline Resin to Pressure Injection Type Thermoplastic Denture Base Resin
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Moon Tae-Sung
Jeon Yun-Kyung
Jeon You-Jin
Lim Jang-Seop
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Abstract
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The purpose of this study was to evaluate the bond strength of reline resin to pressure injection type thermoplastic denture base resin.The denture base resins used in this study were Hipolycarbonate(High Dental Co.,Japan),Acetal dental(Pressingdental s.r.l.,Repubblica di San Marino)of thermoplastic resin and Acron MC(GC Dental Industrial Co.,Japan)of heatcured resin.The reline resins used were Lucitone 199(Dentsply international Inc.,USA),Tokuso rebase(Tokuyama Corp.,Japan),and Lightdon-U(Dreve-Dentamid-Gmbh,Germany).The reline resins are representative of heat-cured,self-cured,and light-cured resin respectively.Bond strength was examined by use of a three-point transverse flexural strength test. The results were as follows:1.The bond strength of Lucitone 199 to Acron MC was the highest.2.The bond strengths of Lucitone 199 and Tokuso rebase to Hi-polycarbonate resulted in a value of approximately one half that of Lucitone 199 to Acron MC,and there were no significant differences between these and the bond strength of Tokuso rebase to Acron MC(p<0.05).3.The bond strengths of reline resins to Acetal dental were lower than those of reline resins to Hi-polycarbonate.4.For all base resins Lightdon-U showed lower bond strength than the other reline resins.
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KEYWORD
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Thermoplastic resin, Polycarbonate, Polyacetal resin, Denture reline
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