Repeatability of electronic shade determination and the influence of differences in patient's sitting position.
The aim of the study was to assess the repeatability of shade determination of teeth by a spectrophotometer. Additionally, the influence of different sitting positions on the shade determination was evaluated. Two operators measured the shade of an incisor and a premolar of 24 subjects sitting in three different positions. 18 participants were measured twice. The shade was determined in three areas on each tooth; cervical, central and incisal. Intra- and inter-operator repeatability was calculated and the variance between sitting positions analysed. The results had low to moderate intra- and inter-operator repeatability. The patient's sitting position affected the shade determination.
marit.oilo@iko.uib.no
Marit
M
Øilo
D000328:Adult; D000704:Analysis of Variance; D001641:Bicuspid / Q000033:anatomy & histology*; D003116:Color; D003124:Colorimetry / Q000295:instrumentation*; D006801:Humans; D007180:Incisor / Q000033:anatomy & histology*; D008029:Lighting; D015588:Observer Variation; D056888:Patient Positioning; D015203:Reproducibility of Results; D013053:Spectrophotometry