title: Dimensional stability of two impression materials.
abstract: Elastomeric impression materials are widely used in dentistry to obtain accurate impressions. The most recent group of these materials is the additional polymerised silicones which have been shown to produce great accuracy. An auto-mixing system has been developed to provide ease of manupilation. The material is mixed as it is syringed through a mixing tip. The dimensional accuracy of the material mix by this system is compared to that of a hand mixed material. Results show that the dimensional accuracy of this new material is good and the system easy to use. The limitations of the material are also discussed.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003760:Dental Impression Materials; D012826:Silicone Elastomers; D013314:Stress, Mechanical; D013499:Surface Properties; D013997:Time Factors
chemical_list: D003760:Dental Impression Materials; D012826:Silicone Elastomers