Influence of the incorporation of triclosan methacrylate on the physical properties and antibacterial activity of resin composite
J. appl. oral sci
;
27: e20180262, 2019. tab
Artigo
em Inglês
| LILACS, BBO
| ID: biblio-1019969
ABSTRACT
Abstract The incorporation of antimicrobials in the composites as an attempt to reduce bacterial adhesion without jeopardizing mechanical properties is a challenge for Dentistry. Objective:
To evaluate the bacterial adhesion and physical properties of a composite containing the methacrylate triclosan- derivative monomer (TM).Methodology:
TM was synthesized and added to an experimental composite. Samples were divided into two groups Control and TM (13.4 wt%). Antibacterial Activity Three specimens of each material were prepared and placed on bacterial suspensions of Streptococcus mutans for 1, 5 and 10 days. After these periods the counting of the colonies (log10) was performed. Assays was performed in triplicate. Physical Properties Three-body Abrasion (TBA) Ten specimens of each material were prepared and stored at 37°C/24 h. The surface roughness (Ra) and hardness (KHN) were analyzed. Next, the specimens were submitted to abrasive wear (30,000 cycles) and re-evaluated for Ra and KHN; Sorption/solubility (SS) cylindrical specimens (n=10) were prepared and weighted. The specimens were immersed in deionized water for 7 days at 37°C and then their weight was verified again. SS were calculated using accepted formulas; Diametral tensile strength (DTS) specimens (n=10) underwent test performed in an Instron universal testing machine at a crosshead speed of 1 mm/min. Data were submitted to appropriate statistical tests according to data distribution and assay (p<0.05).Results:
Bacterial Adhesion TM showed a significant reduction on biofilm accumulation in the evaluated periods 1 day (1.537±0.146); 5 days (2.183±0.138) and 10 days (4.469±0.155) when compared with Control 1 day (4.954±0.249); 5 days (5.498±0.257) and 10 days (6.306±0.287). Physical Properties For TBA, SS and DTS no significant difference was found between groups Control and TM. The incorporation of methacrylate triclosan-based monomer in the experimental composite reduce bacterial adhesion of S. mutans and did not affect important polymer properties.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Triclosan
/
Resinas Compostas
/
Metacrilatos
/
Antibacterianos
Tipo de estudo:
Estudos de avaliação
Idioma:
Inglês
Revista:
J. appl. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2019
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Estadual de Campinas/BR
/
Universidade de Mogi das Cruzes/BR
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