Shade selection performed by novice dental professionals and colorimeter.
The objective of this study was to test inter-observer variability in shade selection for porcelain restorations, using three different shade guides: Vita Lumin Vacuum, Vita 3D-Master and Procera. Nineteen young dental professionals acted as observers. The results were also compared with those of a digital colorimeter (Shade Eye Ex; Shofu, Japan). Regarding repeatability, no significant differences were found between the three shade guides, although repeatability was relatively low (33-43%). Agreement with the colorimetric results was also low (8-34%). In conclusion, shade selection shows moderate to great inter-observer variation. In teaching and standardizing the shade selection procedure, a digital colorimeter may be a useful educational tool.
Klemetti
E
E
Faculty of Dentistry, Kuwait University, Kuwait. klemetti@hsc.edu.kw
Matela
A-M
AM
Haag
P
P
Kononen
M
M
D000328:Adult; D003118:Color Perception; D003124:Colorimetry / Q000592:standards; D017267:Dental Prosthesis Design / Q000592:standards*; D003793:Dental Restoration, Permanent / Q000592:standards; D003800:Dental Technicians; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D017797:Prosthesis Coloring / Q000592:standards*; D015203:Reproducibility of Results; D013335:Students, Dental