Cigarette Smoking Effect on Microhardness and Flexural Properties of Denture Base Resins
Pesqui. bras. odontopediatria clín. integr
;
23: e210059, 2023. tab, graf
Artigo
em Inglês
| LILACS, BBO
| ID: biblio-1529136
ABSTRACT
ABSTRACT 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<0.001). Conclusion: Cigarette smoking does not affect the flexural properties of the acrylic resin (BMS 014® and Major Repair® unlike Major Base 20®), but it does reduce the microhardness.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Dentaduras
/
Fumar Cigarros
/
Resistência à Flexão
Idioma:
Inglês
Revista:
Pesqui. bras. odontopediatria clín. integr
Assunto da revista:
Odontologia
Ano de publicação:
2023
Tipo de documento:
Artigo
País de afiliação:
Tunísia
Instituição/País de afiliação:
University of Monastir/TN
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