T-116_Procera-Bridge Zirconia - A Clinical Study

Procera-Bridge Zirconia - A Clinical Study

The objective of the study is to evaluate the clinical performance of Procera® Bridge Zirconia veneered with NobelRondo Zirconia.

The study was designed to be an open, 5-year, prospective, multi-center clinical post-market study. The objectives of this clinical study were that industrial centrally produced 3- or 4-unit bridges of yttrium-oxide partially-stabilized (Y-TZP) zirconia (Procera Zirconia) in combination with the veneering ceramic material NobelRondo will show sufficient CDA ratings (90% R+S) and a sufficient survival rate after 1 and 5 years.

Inclusion Criteria:

• Patients planned for treatment with a tooth-supported 3 to 4-unit bridge in any position of the maxilla or the mandible
• Indication: same indication as for metal supported bridges
• Obtained informed consent from the patient

Exclusion criteria

• Currently known alcohol, drug or medication abuse, judged by the investigator, which might influence the follow-up program
• Patients where a bridge part connection area of 3 mm of diameter is not possible to obtain (short clinical crowns)
• Mobility of the abutment teeth exceeding grade I
• Patients with pathologic pocket formation at abutment teeth
• Patients with complete dentures in the opposing jaw
• Patients with a removable partial denture in the same jaw