A release of potentially toxic components from the acrylic resins for soft relining dentures

Abstract

Introduction: Soft acrylic resins belong to a group of cold curing materials that are applied to the basal surface of the dental prosthesis in order to eliminate mechanical irritation, and to allow for the recovery of damaged or inflamed mucous membranes, and prepare the oral tissue to accept a new compensation. The aim of the study was to examine the rhythm of the release of soft acrylic resin components in three different models of artificial saliva, during a thirty-day observation period. Material and Methods. Two soft acrylic resins were used in the study: poly (ethyl methacrylate)/n-butyl methacrylate and poly (ethyl methacrylate)/methyl methacrylate, which were deposited in three different models of artificial saliva within the three observation periods: one, seven and thirty days. The test involved the detection of methyl methacrylate, ethyl methacrylate, butyl methacrylate, dibutyl phthalate and benzoyl peroxide under high-pressure liquid chromatography. Results: The amount of released components increased proportionately with the increase in the duration of the observation period, regardless of the artificial saliva model. The highest values of all tested parameters were detected after a thirty-day observation period. The artificial saliva model did not affect the release of the components, which means they are freely released into the oral cavity regardless of the saliva composition of the patient. Conclusion:As the length of the observation period increased, the material was solidified, thus ending their use value.

Keywords

• soft acrylic resins
• potentially toxic substances
• hplc