title: Application of added beam filtration to intra-oral radiography.
authors.affiliation: Department of Diagnostic Services, University of Pittsburgh, PA.
authors.forename: S F
authors.initials: SF
authors.lastname: Kapa
authors.forename: D A
authors.initials: DA
authors.lastname: Tyndall
authors.forename: T E
authors.initials: TE
authors.lastname: Ouellette
mesh_terms: D004871:Erbium; D005374:Filtration; D005682:Gadolinium; D006801:Humans; D011829:Radiation Dosage; D011861:Radiography, Dental / Q000379:methods*; D014962:X-Ray Film; D014963:X-Ray Intensifying Screens; D015019:Yttrium
chemical_list: D015019:Yttrium; D004871:Erbium; D005682:Gadolinium