2004 Volume 48 Issue 4 Pages 543-548
Patient: The patient was a 58-year old female suffering from broken all-ceramic crown on the lower right 1st molar.The patient was treated using a new Procera® AllCeram Crown restoration.The clinical and technical procedures were carried out according to the manufacturer's recommendations. Although the esthetic and functional properties were excellent, adaptability to the abutment was not accurate.Therefore, we evaluated the suitability of Procera® AllCeram Crown for the abutment in question.
Results and Discussion: 1. When the Procera® AllCeram Crown was tried on the abutment, it was found that there was a 100μm space between the crown and the abutment. 2. Because of this space the crown was slightly loose. 3. The fit of the crown was not as good as that of a full cast crown. 4. Because of this space, it may be necessary to apply some devices to seat the crown on the abutment during a try-in and an occlusal equilibration or dies during the technical procedure.
Conclusions: By using the new Procera® AllCeram Crown an esthetic restoration may be manufactured on the posterior tooth area without any reservations at this stage. Reducing the cement space from 100μm to 50μm will improve the clinical and technical results.
