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28 | CERECDOCTORS.COM | QUARTER 3 | 2014
zirconia-reinforced lithium silicate
ceramic — ZLS for short — is a new, high-
performance glass ceramic material that
offers excellent properties such as high
strength and reliability. Under the brand
name VITA SUPRINITY, it is available
fromVITA in geometry size LS-14 (18 x 14
x 12 mm) for the CEREC/inLab MC XL
system, in shades 0M1, A1, A2, A3, A3.5,
B2, C2 and D2. Each block is available in
two translucency levels: T (Translucent)
andHT (High Translucent).
VITA SUPRINITY was the material
of choice in the featured case for two
reasons. First, because it only requires
individualization following cut-back to
create restorations that offer a natural
play of colors. This presents an effec-
tive alternative to restorations using full
veneers. And second, because the mate-
rial has been cleared both for anterior and
posterior restorations, and it offers greater
strength in comparisonwith conventional
glass ceramics. This provides a sound
basis for raising the bite of both the upper
and lower jaw in relation to one another.
CASE STUDY
Amalepatient inhismid-50s presented to
Dr. Christopher Igiel of the Department
forDental, Oral andMaxillofacial Surgery
at Mainz University Medical Center. The
palatine and occlusal surfaces in partic-
ular of the maxillary dentition showed
significant abrasion, which had resulted
in a deeper bite (Fig. 1).
The patient was suffering from hyper-
sensitivity in the tooth neck
area, where the dentin was
already partially exposed.
The dentition generally
A Clinical Case Study Utilizing
the All-New VITA SUPRINITY
A NewHigh-performance Glass Ceramic Material
CASE STUDY ||| BY HANS JÜRGEN LANGE, M.D.T.
showed a considerable amount of
discoloration in the formof stains. Slight
raising of the bite in order to restore
the previous occlusion was planned.
Improved esthetics as well inexpensive
implementation of the prosthetic resto-
ration was also important to the patient.
THE MATERIAL OF CHOICE
The plan called for using individual VITA
SUPRINITYcrowns to performmaxillary
restoration of #4 (15) to #14 (26), as well
as mandibular restoration of #19 (36) to
#29 (45). VITA SUPRINITY presents an
effective alternative to restorations using
full veneers. And because the material
has been cleared both for anterior and
posterior restorations, it offers greater
strength in comparisonwith conventional
glass ceramics, providing a sound basis
for raising the bite of both the upper and
lower jaw in relation to one another.
FABRICATION PROCESS
A total of 22 crowns were fabricated
using the inLab MCXL system from
Sirona. The first step was to scan the
jaw model of the preparation (Figs. 2-3)
using inEos Blue. The crowns were then
constructed in fully anatomical fashion
using inLab software V 4.2 and the bioge-
neric design (Figs. 4 and 5), and milled
Fig. 1: Initial situation
Fig. 2: Preparation (upper jaw)
Fig. 3: Preparation (lower jaw)
Fig. 4: Upper jaw construction using
inLab software V 4.2
Fig. 5: Lower jaw construction
Fig. 6: Fully anatomical individual
crowns milled from VITA SUPRINITY
materials
Fig. 7: Fully crystallized maxillary
crowns on the model
Fig. 8: Fully crystallized mandibular
crowns on the model
Fig. 9: Try-in in the patient’s mouth
Fig. 10: Cut-back of the maxillary
crowns from #6 (13) to #11 (23) for
individualization using VITA VM 11
Fig. 11: Characterization using VITA
AKZENT Plus stains
Fig. 12: Final result in the patient’s
mouth
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