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The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

January/February 2000
Volume 13 , Issue 1

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Bond Strength of Denture Teeth to Denture Base Resins

Yutaka Takahashi, DDS, PhD/John Chai, BDS, MS, MJ, DLaw/Tomoko Takahashi, DDS/Tetsuya Habu, DDS, PhD

Pages: 59-65
PMID: 11203611

Purpose: The study examined the bond strength between 2 types of denture teeth and 3 denture base resins. The denture teeth were untreated, prepared with diatorics, or treated with dichloromethane, a solvent. Materials and Methods: Conventional denture teeth and cross-linked denture teeth were bonded to either a heat-cured denture base resin, a microwave-cured denture base resin, or a pour-type denture base resin. Compressive load was applied at 45 degrees on the palatal surface of each tooth until fracture. Results: Conventional resin teeth possessed higher bond strength than cross-linked denture teeth. The heat-cured denture base resin significantly surpassed the microwave-cured denture base resin in bond strength. Both materials were better than the pour-type resin. The application of dichloromethane resulted in a significantly better improvement in bond strength compared to the use of diatorics. Conclusion: It is recommended that dichloromethane be applied on the denture teeth ridge-lap area prior to denture base processing.

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