Investigation of flexural strength and cytotoxicity of acrylic resin copolymers by using different polymerization methods
| Autor: | Zeynep Sümer, Ali Boztuğ, Ali Kemal Ozdemir, Onur Şahin, Mehmet Turgut |
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| Přispěvatelé: | [Sahin, Onur] Bulent Ecevit Univ, Fac Dent, Dept Prosthodont, Zonguldak, Turkey -- [Ozdemir, Ali Kemal] Cumhuriyet Univ, Fac Dent, Dept Prosthodont, Sivas, Turkey -- [Turgut, Mehmet] Dentaforum Dent Clin, Dept Prosthodont, Kayseri, Turkey -- [Boztug, Ali] Tunceli Univ, Dept Chem, Tunceli, Turkey -- [Sumer, Zeynep] Cumhuriyet Univ, Fac Med, Dept Microbiol, Sivas, Turkey, Sahin, Onur -- 0000-0002-8018-6946, Zonguldak Bülent Ecevit Üniversitesi |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Isobutyl methacrylate
Acrylic resin Materials science Cytotoxicity technology industry and agriculture Methacrylate Poly(methyl methacrylate) 2-Hydroxyethyl Methacrylate Flexural strength chemistry.chemical_compound Monomer Polymerization chemistry Copolymer visual_art visual_art.visual_art_medium Dentistry (miscellaneous) Original Article Oral Surgery 2-Hydroxyethyl methacrylate Nuclear chemistry |
| Zdroj: | The Journal of Advanced Prosthodontics |
| Popis: | WOS: 000353855300003 PubMed ID: 25932307 PURPOSE. The aim of this study was to appraise the some mechanical properties of polymethyl methacrylate based denture base resin polymerized by copolymerization mechanism, and to investigate the cytotoxic effect of these copolymer resins. MATERIALS AND METHODS. 2-hydroxyethyl methacrylate (HEMA) and isobutyl methacrylate (IBMA) were added to monomers of conventional heat polymerized and injection-molded poly methyl methacrylate (PMMA) resin contents of 2%, 3%, and 5% by volume and polymerization was carried out. Three-point bending test was performed to detect flexural strength and the elasticity modulus of the resins. To determine the statistical differences between the study groups, the Kruskall-Wallis test was performed. Then pairwise comparisons were performed between significant groups by Mann-Whitney U test. Agar-overlay test was performed to determine cytotoxic effect of copolymer resins. Chemical analysis was determined by FTIR spectrum. RESULTS. Synthesis of the copolymer was approved by FTIR spectroscopy. Within the conventional heat-polymerized group maximum transverse strength had been seen in the HEMA 2% concentration; however, when the concentration ratio increased, the strength decreased. In the injection-molded group, maximum transverse strength had been seen in the IBMA 2% concentration; also as the concentration ratio increased, the strength decreased. Only IBMA showed no cytotoxic effect at low concentrations when both two polymerization methods applied while HEMA showed cytotoxic effect in the injection-molded resins. CONCLUSION. Within the limitations of this study, it may be concluded that IBMA and HEMA may be used in low concentration and at high temperature to obtain non-cytotoxic and durable copolymer structure. |
| Databáze: | OpenAIRE |
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