Effect of plasma treatment on adhesion of self-curing repair resin to acrylic denture base.
Plasma irradiation on surface of heat-cured acrylic resin prior to processing self-curing acrylic resin is likely to effectively increase the adhesive strength between these materials for short-term period. However, long-term reliability of adhesive strength between these materials has not been clarified yet. In the present study, these materials were stored in water for a long period (100 days), and the effect on their shear bond strength was investigated. Forty-four test specimens with flat bonding test surface were made with heat-cured acrylic resin. They were divided into four groups according to treatment procedures for bonding surface: plasma treatment, adhesive primer application, adhesive primer application after plasma treatment, and no treatment (for control). Self-curing acrylic resin was processed against all bonding surfaces. After storage in water for 100 days, shear bond strength values between heat-cured and self-cured acrylic resins were measured. Specimens in plasma treatment group exhibited higher shear bond strength value than those in control, although the difference was not significant.
Nishigawa
Goro
G
Clinical Division of Removable Prosthodontics, Okayama University Hospital of Dentistry, 2-5-1 Shikata-cho, Okayama 700-8525, Japan. goro@md.okayama-u.ac.jp
Maruo
Yukinori
Y
Oka
Morihiko
M
Okamoto
Makoto
M
Minagi
Shogo
S
Irie
Masao
M
Suzuki
Kazuomi
K
D000180:Acrylic Resins / Q000528:radiation effects*; D000268:Adhesiveness; D001840:Dental Bonding / Q000379:methods*; D003799:Dental Stress Analysis; D003819:Denture Bases; D003780:Denture Repair; D004356:Drug Storage; D006358:Hot Temperature; D007477:Ions; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength; D013499:Surface Properties / Q000528:radiation effects; D014867:Water
D000180:Acrylic Resins; D007477:Ions; D019279:Resin Cements; D014867:Water