Influence of a light-activated glaze on the adhesion of Streptococcus sanguinis to the surface of polymers used in fabrication of interim prostheses

Autor(es)

dos Santos, Daniela Micheline ^[1] ; Commar, Betina Chiarelo ^[1] ; Freitas da Silva, Emily Vivianne ^[1] ; Ricardo Barao, Valentim Adelino ^[2] ; Matos, Adaias Oliveira ^[2] ; Goiato, Marcelo Coelho ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, UNESP, Aracatuba - Brazil

^[2] Univ Estadual Campinas, Dept Prosthesis & Periodont, Piracicaba Dent Sch, Piracicaba - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF INVESTIGATIVE AND CLINICAL DENTISTRY; v. 10, n. 4 NOV 2019.
• Citações Web of Science: 0

Resumo

Aim This study aimed to investigate the adhesion of Streptococcus sanguinis to the surface of interim prostheses that were treated or not treated with a light-activated glaze, and subjected or not subjected to a thermocycling procedure. Methods 36 specimens of each resin were divided into 4 groups: heat-activated acrylic resin; chemically-activated acrylic resin; bis-acryl composite resin (Protemp; 3M ESPE); and bis-GMA (Charisma; Heraeus Kulzer). Half of the specimens underwent application of glaze and the other half underwent mechanical polishing. Specimens were randomly distributed into groups (N = 9) with and without thermocycling (2000 cycles). Surface energy, roughness and microbiological analyses were performed. Results Groups treated with glaze showed lower roughness when compared with the same groups without glaze treatment, before and after thermocycling, except for the bis-acryl groups after thermocycling. Surface energy values were higher in the groups treated with glaze, except the bis-acryl group before and after thermocycling. After thermocycling, the values of bacterial adhesion decreased numerically, with the exception of the chemically-activated acrylic resin group treated with glaze and the heat-activated acrylic resin group without glaze treatment. Conclusion The application of glaze and the thermocycling do not influence, in a statistically significant manner, the bacterial adhesion on polymer surfaces. (AU)

• Processo FAPESP: 15/02777-8 - Influência do glaze fotopolimerizável na formação inicial do biofilme dentário sob a superfície de polímeros utilizados na confecção de próteses fixas provisórias intra-orais
• Beneficiário: Betina Chiarelo Commar
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica