Ricerc@Sapienza

BACKGROUND: The aim of this in vivo study was to compare
spectrophotometric backgrounds - white (WB) with
cuspal (C), black (BB) with non cuspal (NC) - in order to
determine if the oral natural conditions could be used as reliable
backgrounds instead of the traditional black and/or white
for in vivo color matching.
Methods: Spectrophotometric measurements were performed
on ninety-three upper right permanent central incisor.
Among inclusion criteria were A1, A2, A3 (Vita Classical

BACKGROUND: Iconâ proved to be effective on enamel
hypomineralized lesions such as White Spot Lesion (WSL),
Developmental Defects of Enamel (DDE) and mild cases of
Fluorosis.1, 2, 3 Colour stability over time is the main criticity of
the treatment and a recent systematic review 4 showed that the
clinical efficacy grade of resin infiltration to manage enamel
hypomineralization is low, mainly because the follow-up period
is limited to 12 months (5) and the long-term success rate

The aim of this in vivo study was to evaluate the colourimetric
changes between sound enamel and post orthodontic WSLs and to
correlate these findings with human eye colour perception threshold
using spectrophotometry. Experimental approach Seventy-six
permanent teeth with post orthodontic WSLs in 12–16 years old
patients were evaluated in this in vivo study at “Sapienza”University
of Rome. The spectrophotometric differences in colour (ΔL*, Δa*,
Δb*; Color Difference ΔE00; Whiteness Index ΔWIO) between