title: Effect of degradation of denture base resin on bond strength to relining resins.
abstract: The purpose of this study was to evaluate the effect of degradation of a denture base resin on bond strength to relining resins. Denture base resin specimens were immersed under various conditions to simulate degradation. Tensile bond strength of denture base resin after immersion to relining resins was measured with or without surface grinding. The bond strength of denture base resin without grinding after immersion to relining resin was significantly lower than that before immersion. However, bond strength was improved by surface grinding before bonding. These results suggest that bonding efficiency of denture base resin to relining resins was affected by immersion condition, which caused potential degradation of the denture base resin.
authors.affiliation: Complete Denture Prosthodontics, Department of Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan. t.sato.ore@tmd.ac.jp
authors.forename: Toshio
authors.initials: T
authors.lastname: Sato
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Takahashi
authors.forename: Toshio
authors.initials: T
authors.lastname: Hongo
authors.forename: Iwao
authors.initials: I
authors.lastname: Hayakawa
mesh_terms: D000042:Absorption; D000180:Acrylic Resins / Q000737:chemistry; D000704:Analysis of Variance; D001585:Benzoyl Peroxide / Q000032:analysis; D003116:Color; D001840:Dental Bonding; D003799:Dental Stress Analysis; D003819:Denture Bases; D003822:Denture Liners; D007101:Immersion; D020366:Methylmethacrylate / Q000032:analysis; D012995:Solubility; D018709:Statistics, Nonparametric; D013499:Surface Properties; D013718:Tensile Strength
chemical_list: D000180:Acrylic Resins; D020366:Methylmethacrylate; D001585:Benzoyl Peroxide