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KMID : 0362419920300030411
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Journal of Korean Academy of Prosthodontics
1992 Volume.30 No. 3 p.411 ~ p.436
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A study on the bonding strength of resilient denture liners
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Lee Sang-Hoon
Chung Chae-Heon
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Abstract
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the purpose of this study was to assess the adhesion of resilient denture liners(such as, heat-cured silicone molloplast B, cold-cured silicone Mollosil) to polymethyl metacrylate (K-33) and metal (Megalloy) in the laboratory by peel test. The resilient denture lines were processed according to manufactures’ instruction, onto prepared specimens(original resin base plate, rough resin base plate, stippled metal plate, mesh metal plate) 75mm long and 25mm wide. And then, the peel test was performed by instron. @ES The results were as follows: @EN 1. The bonding strength of Mollosil was stronger than that of Molloplast B except the specimen of stippled meal plate. 2. The tensile strength of Mollosil was weaker than that of Molloplast Bas tearing of Mollosil was occured in the peel test. 3. Mesh metal plate had the highest bonding strength in the case of Molloplast B and Mollosil. But stippled metal plate have high bonding strength in the case of Molloplast B and have the lowest bonding strength in the case of Mollosil. 4. The bonding strength of rough resin base plate was stronger than that of original resin base plate in the case of Molloplast B and Mollosil. 5. The bonding strength of meal plates was stronger than that of resin base plates in the case of Molloplast B and Mollosil except the case of bonding strength between the stippled metal plate and Mollosil 6. It seems that the increase of surface and retention form of metal plate and resin base plate produces higher physical bonding strength.
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