Is there difference of Streptococcus mutans count and adherence on amalgam and resin occlusal restorations? A blind clinical study

Brazilian Journal of Oral Sciences

Patricio Agustin Vildósola Grez¹  Eduardo Fernandez Godoy¹  Patricia Palma Fluxá¹  Gustavo Adolfo Moncada Cortés¹  Jose Roberto Cury Saad¹  Javier Martin Casielles¹ 

关键词: Streptococcus mutans;    composite resins;    dental amalgam;   

DOI  :  10.1590/1677-3225v14n1a02

来源: SciELO

【 摘 要 】

AIM: To compare the number of colony forming units CFU and agar adherence of S. mutans on amalgam AM and resin composite RC occlusal restorations. Sixty-five healthy patients older than 18 years with high caries risk who had at least one occlusal AM and RC restorations n=130 were selected. METHODS: The restorations were evaluated according to the alpha Ryge criteria Cohen-Kappa 0.8. For each patient, a biofilm sample was taken using an impression tray technique with previously loaded with solid trypticase yeast extract cysteine sucrose with bacitracin agar placed over the AM restorations and RC restorations in the same patients. The tray was placed inside an oven at 37 °C for 48 h, and the S. mutans count was then performed. Data were analyzed with the test Wilcoxon with a 95% confidence level. RESULTS: RC restorations had statistically significant higher number of CFU of S. mutans than AM restorations p<0.05. CONCLUSIONS: In adult patients with high caries risk, RC occlusal surfaces showed greater agar adherence of S. mutans count than AM restorations.

【 授权许可】

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