RECENT UPDATES ON IRRITANTS IN ACRYLIC RESINS

Abstract

Denture base resins are widely used in dentistry for various purposes such as fabrication of orthodontic removable appliances,temporarycrowns,denturerelining,denture bases. The acrylic resins are used for removable partial or complete dentures,implant supported dentures. These orthodontic appliances are made for various purposes such as space maintainers and arch expansion. Acrylic temporary crowns are very crucial for the crown and bridge fabrication process. Irrespective of the curing techniques, the presence of unreacted monomers can be the root cause for the allergies in the clinicians and the patients. Inorder to prevent the cytotoxic effects of these acrylic resins,the curing techniques is carried out for 30 minutes at a maximum temperature for 1-2 days during the polymerisation techniques. The following unreacted monomers cause various side effects like contact dermatitis, hypersensitivity, dizziness, headaches, burning mouth syndrome,stomatiti,neuropathy,sleepiness and blurred visions. It is highly recommended that in areas dealing with these acrylic resins, there is a high need for adequate ventilation to reduce the deterioration of the CNS system. Methyl methacrylate is a potent primary irritant commonly found in the acrylic resin which acts as a sensitizer and causes contact eczematous reactions on the skin and the oral mucosa. The most reported adverse cases of these include emphysema, edema, collapsing of the lungs. The denture base acrylic resins contain various sensitising substances that cause various allergic reactions. The aim of this review was to bring awareness about the cytotoxic effects of the acrylic resins.