Completing what nature has left unfinished
For over 20 years, bonded veneers have been frequently used in the anterior region in esthetic dentistry. Until recently, these veneers have been made of feldspar or press ceramic materials. With IPS Style, a feldspar-free glass-ceramic has now become available. The writers describe the benefits of this newly conceived ceramic concept.
Picture gallery: Done by an expert!
The patient wanted the esthetics of her upper anterior teeth enhanced. Her teeth looked smallish. Her posterior teeth in particular appeared to be lacking in “body“. No invasive interventions should be taken but the teeth should be given more volume and body. The desired esthetic outcome formed the basis for the wax-up and the integration of the anterior teeth into a harmonious restoration.
A silicone key was prepared from the wax-up and utilized to create a mock-up in the lab. The mock-up visualizes the final outcome and can be altered as required.
The mock-up gives a clear impression of the final result: the teeth appear more voluminous and have more body. They blend in well with the lower teeth and the facial structures.
In line with the requirements of the patient, the lightest tooth shade possible was chosen, consisting of a combination of A1 and B1 shades.
Double-mix impressions were taken and poured to create duplicate models. The area extending from tooth 13 to tooth 23 was cut into segments to obtain single-tooth dies.
To build a Geller model, the isolated single dies were placed back into a modified impression. The bases of the dies had been provided with wax wires.
The dies were degassed and soaked with water and then IPS Style Ceram Transpa was applied to create a neutral effect. Two firing cycles at 810°C were conducted to achieve an ideal foundation for the application of the subsequent materials.
The restorations were then built up in layers directly on the die models. In some parts, the space available for the restorative material was as thin as the thickness of a wafer-thin sheet of paper. For most parts, IPS Style Ceram Incisal and IPS Style Ceram transpa materials were used. The stability of the ceramic materials facilitates the layering procedure.
After only one firing cycle, the contours were already very close to the ideal final state. Only minor corrections were necessary. After the second firing, a highly homogeneous and dense surface was achieved.
In some parts, the veneers were as thin as approx. 0.2 to 0.3 mm. Once cleaned, the ceramic restorations were repositioned on the model to verify their shape and surface texture. The latter determines the light-optical effect of the restoration. In addition, the thinly tapered margins of the veneers create a natural emergence profile and make the transitions between the restorative material and the natural tooth structure disappear.
Bright and lively: The IPS Style veneers on teeth 13 to 23 blend harmoniously with the overall facial appearance. The interplay of shades, surface structure and gloss create a natural appearance. As required by the patient, the upper anterior teeth look now bigger and more robust.
You can read the full version of this article in the March issue of the German dental magazine Dental Dialogue.
All images: courtesy of Benjamin Votteler
Name: Benjamin Votteler
Profession: Master dental technician (lab owner)
Located at: Pfullingen/Germany
Specialist areas: All-ceramics, implant-supported and telescopic restorations
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