Cantilever fixed partial prosthesis with monolithic zirconia ceramic system: A Clinical Case Report

Objectives: Most of the current all-ceramic restorations are composed of monolithic yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramics, which exhibits superior mechanical and aesthetic properties compared with other ceramics. Monolithic zirconia is a biocompatible material that is not cytotoxic, has low bacterial adhesion and provides full ceramic multi unit restorations.

The purpose of this study was to restorate the missing anterior teeth without metal support and meanwhile during the high-tech rehabilitation applications, while eliminating porcelain covering technique it was important to keep the translucent property of monolithic zirconia which was not possible to keep with conventional zirconia supported restorations.
Methods: 14 years old male patient was admitted concerning missing tooth of right maxillary lateral. Cantilever restoration is decided to apply considering both the young age of patient and possible physiological problems due to the outer view since not to affect growing pattern of maxilla or not to cause problems due to 3 unit conventional prosthesis. After right upper canine tooth preparation and impression, monolithic zirconia ceramic system is used.
Results: Good esthetic and functional results were achieved with no complications reported after 12 months.
Conclusions: Prosthetic rehabilitation using monolithic zirconia may help to prevent complications associated with bi-layered ceramics systems. Further studies are essential to provide long-term data about the clinical performance of this type of prostheses.