title: Dental color matching: A comparison between visual and instrumental methods.
abstract: The aim of this study was to compare the agreement rate (%) and color difference (ΔE*ab) of three dental color-measuring devices, with the visual shade identification. The tooth color were determined by two operators, which were advised to select a VITA classic shade tab in each other's agreement. The Shadepilot (SP), CrystalEye (CE) and ShadeVision (SV) were used to measure tooth color. Statistically analyses include agreement rate (%), color difference (ΔE*ab), McNemar test (p=0.05), Student's t-test (p=0.05) and Bland Altman scatterplots. The SP had an agreement of 56.3% with the visual shade determination, the CE 49.0% and SV 51.3%. ΔE*ab of the visually and instrumentally selected shade tabs and natural teeth were frequently above the threshold for acceptability. Comparing both methods, for SP ΔE*ab values differ in a range of clinical acceptability.
authors.affiliation: Department of Prosthetic Dentistry, University Medical Center.
authors.forename: Christopher
authors.initials: C
authors.lastname: Igiel
authors.forename: Michael
authors.initials: M
authors.lastname: Weyhrauch
authors.forename: Stefan
authors.initials: S
authors.lastname: Wentaschek
authors.forename: Herbert
authors.initials: H
authors.lastname: Scheller
authors.forename: Karl Martin
authors.initials: KM
authors.lastname: Lehmann
mesh_terms: D000328:Adult; D002138:Calibration; D003124:Colorimetry / Q000295:instrumentation*; D017267:Dental Prosthesis Design / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007180:Incisor / Q000033:anatomy & histology*; D008297:Male; D055100:Optical Fibers; D017797:Prosthesis Coloring / Q000295:instrumentation*; D013053:Spectrophotometry / Q000295:instrumentation