title: Effects of coating with different ceromers on the impact strength, transverse strength and elastic modulus of polymethyl methacrylate.
abstract: The aim of this study was to evaluate the mechanical properties of polymethyl methacrylate (PMMA) after coating with different ceromers. For transverse strength and modulus of elasticity tests, specimens of 65×10×2.5 mm dimensions were prepared (5 groups, n=10). For impact strength test, specimens of 60×7.5×4 mm dimensions were prepared (5 groups, n=10). Test group specimens were coated with one of four different types of ceromers, and specimens in the control group were not coated. After specimens were tested for transverse and impact strengths, the data were analyzed with Kruskal-Wallis and Conover post hoc tests (p<0.05). GLYMOTEOS-TiO2 and A174-TEOS significantly increased the transverse strength of PMMA. All ceromers caused a statistically significant increase in the elastic modulus of PMMA. While GLYMO-TEOS-ZrO2 significantly decreased the impact strength, the other ceromers did not cause any statistically significant difference in impact strength. Coating with ceromers substantially improved the mechanical properties of PMMA.
authors.affiliation: Department of Prosthodontics, Faculty of Dentistry, İnönü University.
authors.forename: Esma Başak
authors.initials: EB
authors.lastname: Gül
authors.forename: Mustafa Hayati
authors.initials: MH
authors.lastname: Atala
authors.forename: Bekir
authors.initials: B
authors.lastname: Eşer
authors.forename: Nilüfer Tülin
authors.initials: NT
authors.lastname: Polat
authors.forename: Meltem
authors.initials: M
authors.lastname: Asiltürk
authors.forename: Ahmet
authors.initials: A
authors.lastname: Gültek
mesh_terms: D002516:Ceramics / Q000737:chemistry*; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D003799:Dental Stress Analysis; D003819:Denture Bases; D055119:Elastic Modulus; D008422:Materials Testing; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry*; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: C403136:3-glycidoxypropyltrimethoxysilane; D020099:Coated Materials, Biocompatible; D003188:Composite Resins; D012821:Silanes; C111841:ceromer; C040733:tetraethoxysilane; D019904:Polymethyl Methacrylate