GC EUROPE Kalore - Manual (Page 22)

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Working Time (sec)
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Filtek Supreme DL †
Filtek Z250 †
Filtek Silorane †
EsthetX †
Premise †
Tetric Evoceram †
KALORE
GC Kalore technical manual
6.10 Handling and Working Time
the working time of various composite
materials was tested. The working time
for KALORE was found to be sufficient,
at 135 seconds (Fig. 26).
Figure 26. Working time of various composite materials.
Source: GC Corporation.
7.0 shades and esthetics
Reproducing well-balanced color harmony is one of the greatest challenges in prosthetic and
restorative dentistry. Patients demand esthetic restorations that are indistinguishable from the
natural tooth structure, and preferably that also improve on nature. KalORe offers predictable
esthetics for all direct restorations and makes it possible to balance dental science and the artistry
of a patient’s smile in all clinical direct restorative cases.
KalORe offers state-of-the-art shades for highly esthetic restorations. the shades have been
designed to mimic the translucency, opalescence, hue (pure color), chroma (color saturation), value
(lightness or darkness of color) and fluorescence of natural teeth. the opalescence produces
shimmering pale colors (similar to opals), while the fluorescence determines the ability to absorb
uV light and emit visible (mostly bluish) light. the level of translucency determines the transmission
of light through the tooth or material. the value helps determine how life-like a restoration is (Fig.
27). if only hue and chroma are determined for the color of a restoration, the lack of value will result
in a less life-like result. the enamel surface is the main contributor to value. the incisal and
approximal areas of the tooth are good sites to determine the value of a tooth.
the chameleon effect of KalORe
results in a composite restoration
indistinguishable from the surrounding
tooth structure. the reflected light from
a composite restoration should be
similar to the reflected light from the
tooth structure. composite materials
must have a chameleon effect to be
suitable for both simple and complex
cases.
Figure 27. influence of value on color perception.
Full colors Black and white Full colors, less value
combination of hue,
chroma and value.
Only value is seen