| Autor: |
Ayşegül Köroğlu, Onur Şahin, Doğu Ömür Dede, Şeyda Adıgüzel, Baki Hazer |
| Jazyk: |
English<br />Turkish |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Selcuk Dental Journal, Vol 5, Iss 1, Pp 31-38 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2148-7529 |
| DOI: |
10.15311/selcukdentj.299133 |
| Popis: |
Background:The aim of this study was to evaluate the effect of adding four different monomers on the flexural strength, elastic modulus, impact strength and residual monomer content of denture base resins polymerized by copolymerization mechanism.Methods:Butyl methacrylate (BMA), Isobutyl mathacrylate (IBMA), 2-hydroxyethyl methacrylate (HEMA) and methacryl-polyhedral silsesquioxane (POSS-MA) were added to monomers of conventional heat (HP) and microwave polymerized (MP) polymethyl methacrylate (PMMA) resin at the concentrations of 2%, 5% and 10% per volume. The flexural strength, elastic modulus and impact strength of specimens were measured with an universal testing machine and Charpy-type impact tester. Residual monomer contents were determined by high performance liquid chromatography (HPLC) method. Results:10% IBMA and 10% HEMA enhanced the flexural strength of HP resin. For the elastic modulus of MP resin, significant differences observed between the control group and 2 and 5% IBMA, 5 and 10% HEMA, and 5% POSS-MA groups (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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