Cigarette Smoking Effect on Microhardness and Flexural Properties of Denture Base Resins
| Autor: | Atf Ghariani, Sabra Jaâfoura, Sana Bekri, Amel Labidi, Mounir Trabelsi |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Pesquisa Brasileira em Odontopediatria e Clínica Integrada, Vol 23 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1519-0501 1983-4632 |
| Popis: | Objective: To identify the tobacco effect on flexural properties and the microhardness of three acrylic resins. Material and Methods: Three resins were tested: two thermo-polymerizable acrylic resins (RMB 20 and BMS 014) and one autopolymerized acrylic resin. The 3-point bending and microhardness tests were carried out with a universal tensile-compression machine and a micro-Vickers hardness tester. The acrylic resin specimens have been exposed for 21 days to cigarette smoke in a smoking room. Their mechanical strength was compared to unexposed samples. Statistical analysis was performed using the data processing software SPSS Statistics 21.0. Results: The flexural properties of the resins were affected by cigarette smoke only in the case of Major Base 20® (drop in strength with p= 0.02; 0.6; 0.7 and in elastic modulus with p= 0.86; 0.74 and 0.85 for Major Base 20®, BMS 014® and Major Repair®). The cigarette smoke affected significantly microhardness for all groups (p |
| Databáze: | Directory of Open Access Journals |
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