Monopoly coating on acrylic resin surfaces: a bacteriologic study.

Area of Science:

• Biomaterials Science
• Microbiology
• Prosthodontics

Background:

• The inner surface of open-bulb buccal flange obturators is challenging to polish, leading to bacterial accumulation and odor.
• Oral and nasal secretions can exacerbate hygiene issues on these unpolished surfaces.
• A potential solution involves applying a coating to improve surface smoothness and cleanability.

Purpose of the Study:

• To investigate the efficacy of a monopoly coating in reducing bacterial retention on acrylic resin surfaces.
• To assess the impact of the coating on the washability of contaminated acrylic resin.
• To determine if the coating improves the hygiene of obturator surfaces inaccessible for mechanical polishing.

Main Methods:

• Acrylic resin samples were prepared, with some coated with monopoly and others left uncoated.
• Both coated and uncoated samples were intentionally contaminated with Escherichia coli (E. coli).
• Samples underwent a standard washing procedure, and the remaining viable E. coli colonies were quantified.

Main Results:

• A statistically significant reduction in E. coli colonies was observed on the monopoly-coated acrylic resin surfaces compared to uncoated surfaces (p < 0.001).
• The coating demonstrated a marked decrease in bacterial retention after washing.
• These findings indicate enhanced washability and reduced bacterial load with the monopoly coating.

Conclusions:

• Monopoly coating is an effective method for reducing bacterial retention on acrylic resin surfaces where mechanical polishing is not feasible.
• Application of monopoly coating to obturator surfaces can improve oral hygiene and mitigate odor issues.
• This technique offers a practical solution for enhancing the cleanliness of complex prosthetic device components.