Dimensional changes of processed denture bases after relining with three resins. 1991

L C Breeding, and D L Dixon, and P S Lund
Department of Oral Health Practice, University of Kentucky, College of Dentistry, Lexington.

This study compared the dimensional change of simulated processed denture bases after relining with three resins. Thirty simulated denture bases 1.5 to 2 mm thick were processed from Lucitone 199 resin following the manufacturer's instructions using the long-cure method. Ten bases were relined with Lucitone 199 (long-cure), 10 were relined with Triad resin, and 10 were relined with Accelar 20 resin. The relined bases were processed on a metal die using a reline jig, and three measurements (from distobuccal flange to distobuccal flange) were made with a traveling microscope immediately before and after relining. Each relined simulated denture base showed a significant dimensional shrinkage after processing. The mean dimensional change values of the Triad resin relined bases were significantly greater than those of the other two resin relined bases. All of the dimensional change values, however, would probably be insignificant in a clinical situation.

UI MeSH Term Description Entries
D008027 Light That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range. Light, Visible,Photoradiation,Radiation, Visible,Visible Radiation,Photoradiations,Radiations, Visible,Visible Light,Visible Radiations
D011109 Polymethacrylic Acids Poly-2-methylpropenoic acids. Used in the manufacture of methacrylate resins and plastics in the form of pellets and granules, as absorbent for biological materials and as filters; also as biological membranes and as hydrogens. Synonyms: methylacrylate polymer; poly(methylacrylate); acrylic acid methyl ester polymer. Methacrylic Acid Polymers,Acid Polymers, Methacrylic,Acids, Polymethacrylic,Polymers, Methacrylic Acid
D011145 Polyvinyls POLYMERS derived from the monomer VINYL COMPOUNDS. Polyvinyl
D003760 Dental Impression Materials Substances used to create an impression, or negative reproduction, of the teeth and dental arches. These materials include dental plasters and cements, metallic oxide pastes, silicone base materials, or elastomeric materials. Dental Impression Material,Impression Material, Dental,Impression Materials, Dental,Material, Dental Impression,Materials, Dental Impression
D003765 Models, Dental Presentation devices used for patient education and technique training in dentistry. Dental Models,Dental Model,Model, Dental
D003819 Denture Bases The part of a denture that overlies the soft tissue and supports the supplied teeth and is supported in turn by abutment teeth or the residual alveolar ridge. It is usually made of resins or metal or their combination. Base, Denture,Bases, Denture,Denture Base
D003823 Denture Rebasing The process of refitting a denture by replacing the denture base material without changing the occlusal relations of the teeth. Rebasing may include adding to the denture base to compensate for resorptive changes to subjacent structures. Denture Relining,Denture Rebasings,Denture Relinings,Rebasing, Denture,Rebasings, Denture,Relining, Denture,Relinings, Denture
D006358 Hot Temperature Presence of warmth or heat or a temperature notably higher than an accustomed norm. Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot
D000180 Acrylic Resins Polymers of high molecular weight which are derived from acrylic acid, methacrylic acid or other related compounds and are capable of being molded and then hardened to form useful components. Acrylic Resin,Resin, Acrylic,Resins, Acrylic
D012833 Siloxanes Silicon polymers that contain alternate silicon and oxygen atoms in linear or cyclic molecular structures. Polysiloxane,Polysiloxanes,Siloxane

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