title: Effects of plasma treatment on the shear bond strength between fiber-reinforced composite posts and resin composite for core build-up.
abstract: The aim of this study was to evaluate the effects of plasma treatment on adhesion between fiber-reinforced posts and a composite core material. Two types of posts, methacrylate-based (FRC Postec) and epoxy resin-based (DT Light-Post), were treated with oxygen plasma (O(2)), argon plasma (Ar), nitrogen plasma (N(2)), or helium mixed with nitrogen plasma (He+N(2)) using a radio-frequency generator before bonding to a methacrylate-based composite. Pull-out tests were performed using a universal testing machine. Surface roughness of each group was evaluated using a profilometer. On tensile-shear bond strength, statistical analysis revealed that the type of post, type of plasma treatment, and their interaction significantly influenced the results (p<0.05). Tukey's test revealed significant differences in tensile-shear bond strength between the control and other plasma treatment groups (p<0.05). On surface roughness, Tukey's test revealed significant differences between the control group and the Ar group (p<0.05) with DT Light Post. Plasma treatment appeared to increase the tensile-shear bond strength between post and composite.
authors.affiliation: Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand.
authors.forename: Piriya
authors.initials: P
authors.lastname: Yavirach
authors.forename: Pisaisit
authors.initials: P
authors.lastname: Chaijareenont
authors.forename: Dheerawan
authors.initials: D
authors.lastname: Boonyawan
authors.forename: Kassara
authors.initials: K
authors.lastname: Pattamapun
authors.forename: Somruthai
authors.initials: S
authors.lastname: Tunma
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Takahashi
authors.forename: Mansuang
authors.initials: M
authors.lastname: Arksornnukit
mesh_terms: D001128:Argon / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding / Q000379:methods*; D003764:Dental Materials / Q000737:chemistry*; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis / Q000295:instrumentation; D004853:Epoxy Resins / Q000737:chemistry; D005898:Glass / Q000737:chemistry; D006371:Helium / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D009584:Nitrogen / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D011176:Post and Core Technique / Q000295:instrumentation*; D011791:Quartz / Q000737:chemistry; D011846:Radio Waves; D033081:Shear Strength; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength
chemical_list: D003188:Composite Resins; D003764:Dental Materials; D004853:Epoxy Resins; D008689:Methacrylates; C509715:MultiCore Flow; D011109:Polymethacrylic Acids; D011140:Polyurethanes; C009753:fiberglass; C029824:urethane dimethacrylate luting resin; D011791:Quartz; C020946:triethylene glycol dimethacrylate; D006371:Helium; D011092:Polyethylene Glycols; D001128:Argon; D009584:Nitrogen; D010100:Oxygen