Abstract
Factors affecting bonding durability between three types of denture teeth (two abrasion-resistant plastic denture teeth and a plastic denture tooth) and a pour-type denture base resin were investigated. The bond strengths of Duradent (DU) and Real Crown (RE) were not affected by a water immersion period for up to one week, but significantly decreased after being immersed for one month. Endura (EN) showed a stable bond strength up to one month immersion. Thermocycling (500 cycles) also decreased the bond strengths for all denture teeth. The bond strengthsof Dichloromethane-treated denture teeth did not change even with one month immersion or thermocycling. The results of this investigation suggested that the treatment with Dichloromethane significantly would improve the bonding durability.
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