title: Effect of oxygen plasma treatment on the bonding of a soft liner to an acrylic resin denture material.
abstract: Mechanical roughening reportedly had a weakening effect on bond strength. Therefore, the purpose of this study was to evaluate the effect of an alternative surface roughening method, namely oxygen plasma treatment, on the tensile bond strength between denture base resin and soft liner. The soft liner used in this study was Soft Reverse, whilst the denture base material was Zi Ran. Three groups of specimens were prepared, comprising untreated specimens and oxygen plasma-treated specimens with exposure to air for 1 day and 2 days. All specimens were subjected to surface composition analysis and tensile bond strength testing. All data were analyzed using one-way ANOVA, and their mean values were compared using Tukey's HSD test (p<0.01). Highest tensile bond strength was observed in the 1-day exposure group (5.2 MPa), whilst the lowest in the control group of untreated specimens (2.8 MPa). Hence, results of this study clearly indicated that oxygen plasma treatment was effective in enhancing tensile bond strength.
authors.affiliation: Research Institute of Stomatology, Nanjing Medical University, Nanjing, China. dentzhq@126.com
authors.forename: Huaiqin
authors.initials: H
authors.lastname: Zhang
authors.forename: Jianglin
authors.initials: J
authors.lastname: Fang
authors.forename: Zheng
authors.initials: Z
authors.lastname: Hu
authors.forename: Junchi
authors.initials: J
authors.lastname: Ma
authors.forename: Yi
authors.initials: Y
authors.lastname: Han
authors.forename: Jie
authors.initials: J
authors.lastname: Bian
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D000268:Adhesiveness; D002244:Carbon / Q000032:analysis; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry*; D003799:Dental Stress Analysis; D003819:Denture Bases; D003822:Denture Liners; D006801:Humans; D008422:Materials Testing; D020366:Methylmethacrylate / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D010100:Oxygen / Q000032:analysis / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D058626:Plasma Gases / Q000737:chemistry*; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013718:Tensile Strength; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D000180:Acrylic Resins; D003764:Dental Materials; D058626:Plasma Gases; D014867:Water; D020366:Methylmethacrylate; D002244:Carbon; D010100:Oxygen