Y Nagano, S Miyamoto, Y Kokubo, T Kamiyama, S Noghuchi, N Hanamura
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[Study on composite resin cores. Part 2. Effect of pressing composite resin].
In this study, we investigated effects of pressing in building composite resin cores on compressive strength, retention of prefabricated post and sealing ability. 1. Compressive strength increased by pressing in composite resin cores. 2. Prefabricated post to the retentive forces was not influenced by pressing, but increased when bonding agent was used. 3. Pressing was very effective to improve sealing ability of composite resin to tooth structure. 4. Sealing ability of light-cured composite resin was not influenced by pressing but by curing types of bonding agent.
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