title: Effect of different amounts of 3-methacryloxypropyltrimethoxysilane on the flexural properties and wear resistance of alumina reinforced PMMA.
abstract: This study evaluated the different amounts of 3-methacryloxypropyltrimethoxysilane (MPS) coated alumina filler particles on flexural strength and wear resistance of alumina reinforced polymethyl methacrylate (PMMA) denture base. Ten mass% of alumina filler silanized with 0, 0.1, 0.2, or 0.4 mass% of MPS was blended with PMMA. PMMA without alumina particles served as control.Specimens were prepared for flexural strength and wear resistance tests (n=10). Flexural strength was determined using a 3-point bending test and volume loss was measured by in-vitro 2-body wear-testing. The results were analyzed by One-way ANOVA and Tamhane's test (α=0.05). Flexural strength ranged from 95.1-117.8 MPa, while volume loss ranged from 0.038-0.160 mm3. Statistical analysis indicated the 0.1 mass% MPS silanized group had significantly higher flexural strength and lower volume loss than the control group. Adding alumina filler silanized with 0.1 mass% MPS resulted in an improvement of the flexural strength and wear resistance of PMMA.
authors.affiliation: Oral Biology, Faculty of Dentistry, Chulalongkorn University, Patumwan, Bangkok, Thailand.
authors.forename: Pisaisit
authors.initials: P
authors.lastname: Chaijareenont
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Takahashi
authors.forename: Norihiro
authors.initials: N
authors.lastname: Nishiyama
authors.forename: Mansuang
authors.initials: M
authors.lastname: Arksornnukit
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D019554:Dental Restoration Wear; D003819:Denture Bases; D008689:Methacrylates / Q000737:chemistry*; D018583:Pliability; D019904:Polymethyl Methacrylate / Q000737:chemistry; D012821:Silanes / Q000737:chemistry*
chemical_list: C542237:3-methacryloxypropyltrimethoxysilane; D008689:Methacrylates; D012821:Silanes; D019904:Polymethyl Methacrylate; D000537:Aluminum Oxide