Using a precision scale to accurately measure the pigments of shade.
"I have to weigh everything precisely into the green area." In a small, separate and protected room, an absolutely essential step for VITA takes place - the color formula is mixed precisely. To do this, each color shade is accurately weighed down to the grain with the small scale. The task is first scanned in. Then the formula with the different shade components appears on the screen. The computer now monitors each additional work step. Have the correct shade pigments been taken from the cabinet? The correct selection is documented by scanning the container when it is removed. Now to the spoons. A steady hand and a lot of experience are needed to weigh precisely and for the program to give the green light: "The computer checks whether everything is properly weighed." Skillful handling of the measuring spoon allows the precise amount to be added to the bowl. If too much is weighed in, the software notes it immediately. The corresponding pile must now be reduced with a small spatula until the software switches from red to green. Only then can the next shade pigments be added. A formula consists of 10 to 15 shade components. The bowl shows green, orange, yellow, dark brown and violet pigment clusters. All of these shade nuances are part of a tooth shade. The finished, weighed out shade pigments are then added to the ceramic matrix and after the mixing process, ensure the correct reproduction of the tooth shade during layering in the dental laboratory. Only through this absolutely precise balance with the scale can the ceramic restoration match the natural teeth of the patient.
The mixture creates the tooth shade
Weighing is done grain by grain
The precision scale in use
Gold-palladium Framework efficiently veneered with VITA VM 13 metal ceramics
Cyril Perregaux (Geneva, Switzerland) shows the production of an implantsupported
gold-palladium framework, which he veneered with VITA VM 13.
Complete tooth loss can create a stressful and emotional situation, particularly for young patients. In these cases, the challenge is to offer the patient an age-appropriate, esthetic restoration with reliable long-term stability. VMK restoration (VITA metal ceramics) can be used in this case and is a proven material combination that has been used for many years in clinical situations. In the following case report, Master Dental Technician Cyril Perregaux (Geneva, Switzerland) shows the production of an implantsupported gold-palladium framework, which he veneered with VITA VM 13.
The complete article with the detailed description of the case can be found in the DENTAL VISIONIST 1.17.
Fig. 1 Master models with implant posts and immediate
Fig. 2 The new set-up for prosthetic orientation and
Fig. 3 The silicone keys reflect the dimensions of the
Fig. 4 An implant-supported provisional restoration was
fabricated using the silicone matrix.
Fig. 5 The matrix allows dimensional control of the
Fig. 6 The bridge frameworks are cast in a similar way to the wax-up.
Fig. 7 The three screwed-in bridge frameworks per jaw in the articulator.
Fig. 8 The opaque framework according to the selected
basic tooth shade.
Fig. 9 Approximate and morphological finalization after
the last fitting.
Fig. 10 The final restorations in the articulator,
ready to be screwed in.
Fig. 11 A beautiful smile with natural, age-appropriate care.
Fig. 12 Red and white esthetics in balanced harmony.