Isolation and antimicrobial resistance of Staphylococcus aureus isolates in a dental clinic environment.

Objective: To determine the number of Staphylococcus aureus isolates collected in a dental clinical environment and to determine their susceptibility to antimicrobial agents commonly used in dentistry.

Setting: Undergraduate clinic of the Dental School of Piracicaba, University of Campinas, Brazil.

Methods: Sterile cotton swabs were used to collect the samples from dental-chair push buttons, light handles, 3-in-1 syringes, computer "Enter" keys, doorknobs, and X-ray tubes before, during, and after clinical procedures.

Effect of betamethasone and diclofenac sodium on serum and tissue concentration of amoxicillin. In vivo study in rats.

Objective: Antimicrobial agents in combination with anti-inflammatory drugs have been usually prescribed in both Medicine and Dentistry. However, few scientific reports support this clinical practice. The aim of this study was to evaluate the effect of betamethasone and diclofenac sodium on serum and tissue concentration of amoxicillin in rats.

Environmental contamination before, during, and after dental treatment.

Purpose: To verify environmental contamination by collecting microorganisms from dental equipment surfaces before, during and after clinical procedures.

Methods: Sterile swabs were used to collect the samples from dental-chair push buttons, 3-in-1 syringes, X-ray tubes, computer keys, doorknobs, and light handles before (P1), during (P2) and after (P3) clinical procedures, in the undergraduate clinic of the Dental School of Piracicaba, University of Campinas, Brazil. These samples were spread on BHI agar and incubated at 37 degrees C for 24 hours.

Effect of sodium diclofenac on serum and tissue concentration of amoxicillin and on staphylococcal infection.

The effect of sodium diclofenac on serum and tissue amoxicillin concentration as well as their effect against staphylococcal infection was observed. Four polyurethane sponges were placed in the back of thirty rats. After 14 d, two granulomatous tissues received 0.