title: Effects of environmental factors on maxillofacial elastomers: Part IV--Optical properties.
abstract: The optical properties of four currently used and two recently introduced maxillofacial prosthetic materials were evaluated after the materials were subjected to the following seven environmental variables: natural weathering; normal aging; two types of adhesives; two types of cleaning agents; and cosmetics. Optical density and color changes were evaluated. The currently used silicones Silastic 4-4210 and Silastic 4-4515, Medical Adhesive type A material, and polyurethane all showed more changes in color and optical density than the newly introduced silicone A-102 material.
authors.affiliation: Department of Prosthodontics, Indiana University, School of Dentistry, Indianapolis.
authors.forename: S P
authors.initials: SP
authors.lastname: Haug
authors.forename: C J
authors.initials: CJ
authors.lastname: Andres
authors.forename: C A
authors.initials: CA
authors.lastname: Munoz
authors.forename: G
authors.initials: G
authors.lastname: Bernal
mesh_terms: D000704:Analysis of Variance; D016009:Chi-Square Distribution; D003116:Color; D003720:Densitometry; D004129:Dimethylpolysiloxanes; D008447:Maxillofacial Prosthesis; D055095:Optics and Photonics; D011140:Polyurethanes / Q000737:chemistry*; D012826:Silicone Elastomers / Q000737:chemistry*; D013997:Time Factors
chemical_list: D004129:Dimethylpolysiloxanes; D011140:Polyurethanes; D012826:Silicone Elastomers; C078082:silastic 4-4210; C078080:silastic 4-4515; C078083:silastic medical adhesive type A; C078081:silicone A-102; C078085:silicone A-2186; C023535:epithane-3