GC EUROPE G-aenial - Manual (Page 15)

15
Je ae Se
G-ænial Anterior & Posterior Technical Manual
Figure 24: the classical VitaPan Shade guide was reorganised according to the value of the shade tabs. a correspondence to
the 3 main value shades from G-ænial (Je, ae and Se) can be observed.
Step 2: Choosing the hue
the hue is the pure colour itself. it can be chosen from the 5 groups of the Standard shade (a, B,
c, cervical and Bleach). in order to best choose the hue, it is recommended to look at the colour
of the dentin core, especially where enamel is thin, i.e., at the cervical area of the natural tooth. the
cervical enamel layer is particularly thin around the canines.
Step 3: Establishing the chroma
the chroma indicates the lightness or darkness of a shade, in one particular hue group. the chroma
can be determined by looking at the intensity of the previously defined hue. For example, knowing
that the hue is a, the dentist will define how intense this is: a1, a2, a3, et cetera.
hue and chroma are mainly determined using the G-ænial Shade guide. alternatively, the classical
Vita shade guide can be used, paying attention to cover and ignore the cervical part of the tab
which is too dark and could result in the selection of an incorrect colour.
Additional tips for better shade matching
in complex cases, a mock-up can help selection of the best combination of shades. this should be
applied on the tooth before the bonding procedure is started, taking care that the tooth is not
desiccated. When finishing the restoration, it is important to reproduce the morphology and
anatomy of the tooth as this will contribute to light reflection that is similar to that of the adjacent
tooth and result in better aesthetic integration of the restoration.
Shade guide
although most of G-ænial shades are linked to the Vita classical shade guide, several Special
outside shades and some Standard shades (Bleach, cervical) are custom. the G-ænial shade guide
is fabricated from plastic and each respective shade guide finger is wedge-shaped with increasing
thickness. this design was chosen to offer dentists the possibility of judging the influence of the
thickness of a composite layer on the shade.
hiGh Value lOW Value