Use of 0.25% and 0.025% peracetic acid as disinfectant agent for chemically activated acrylic resin: an in vitro study
نویسنده
چکیده
Objective This in vitro study evaluated the disinfection action of peracetic acid on chemically activated acrylic resin. Methods Sixty chemically activated acrylic resin specimens were contaminated with Candida albicans (30) and Bacillus subtilis (30) for 15 minutes. Next, specimens were divided into Control Group (Group 0) and Test Group (T) for each studied microorganism. The antimicrobial effect of Proxitane® Alfa (Thech Desinfecção, São Paulo, Brazil), containing 0.25% and 0.025% concentrations of peracetic acid was verified after 1, 3, 5 and 10 minutes of exposure. The specimens were transferred to saline solution for 5 minutes, homogenized and aliquots of 100μL were plated on BHI and Sabouraud Dextrose agar. After incubation at 37oC/24h, the number of CFU/mL recovered from each specimen was obtained. Results The 0.025 % peracetic acid was effective against B. subtilis only after 10 minutes and against C. albicans after 3 minutes of exposure. At 0.25% concentration, the solution showed fungicidal and bactericidal efficacy after 1 minute of exposure. Conclusion The 0.25% peracetic acid was shown to be efficient for disinfection of chemically activated acrylic resins. Indexing terms: Acrylic resin. Complete denture. Disinfection. Peracetic acid.
منابع مشابه
In vivo and in vitro evaluation of the efficacy of a peracetic acid-based disinfectant for decontamination of acrylic resins.
The purpose of this study was to assess the antimicrobial efficacy of a peracetic acid-based disinfectant for decontamination of heat-polymerized, chemically activated and microwave-polymerized acrylic resins. Resin plates were contaminated in vivo upon intraoral use by 10 volunteers for 7 nights and slabs were contaminated in vitro by contact with Bacillus subtilis and Bacillus stearothermophi...
متن کاملEffect of sodium hypochlorite and peracetic acid on the surface roughness of acrylic resin polymerized by heated water for short and long cycles
OBJECTIVE To evaluate the surface roughness of acrylic resin submitted to chemical disinfection via 1% sodium hypochlorite (NaClO) or 1% peracetic acid (C2H4O3). MATERIALS AND METHODS The disc-shaped resin specimens (30 mm diameter ×4 mm height) were polymerized by heated water using two cycles (short cycle: 1 h at 74°C and 30 min at 100°C; conventional long cycle: 9 h at 74°C). The release o...
متن کاملPreparation of Water-Based Alkyd/Acrylic Hybrid Resins
Alkyd resins are amongst the most important and widely used resins in coating sectors. In this communication we report on preparation of alkyd resins emulsified by grafted acrylic resins on their fatty acid moieties. Both high-shear mechanical homogenizer and ultra-sonic sonicator were used step-wise to disperse the alkyd resin and acrylic based monomers in aqueous media. The resins are of nano...
متن کاملAn evaluation on the effects of 37% phosphoric acid and self – etching primer on shear bond strength of enamel
An evaluation on the effects of 37% phosphoric acid and self – etching primer on shear bond strength of enamel Dr. A. Davari* - Dr. H. Hajizadeh* - Dr. H. Sharifikhatoonabadi** *- Assistant Professor of Operative Dentistry Dept. - Faculty of Dentistry - Yazd University of Medical Sciences. **- Dentist. Background and Aim: The goal of this study was to evaluate the effects of 37% phosphoric acid...
متن کاملComparative Evaluation of the Flexural Strength of Heat Polymerized Acrylic Resin with the Addition of 8% and 13% Aluminum Oxide Powder: An In-vitro Study
Introduction: Acrylic resins have been used successfully as denture bases. However, acrylic resin denture base materials are brittle and have poor strength and thermal conductivity. Therefore, it is essential to improve the flexural strength of heat polymerized acrylic resin. The present study aimed to evaluate and compare the flexural strength of heated polymerized acrylic res...
متن کامل