Bulletin of Stomatology and Maxillo-Facial Surgeryin of Stom
2022; 56–61
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IMPLANT SUPPORTED FULL-ARCH ZIRCONIA-BASED RESTORATIONS MANUFACTURED (CAD/CAM) FROM MONOLITHIC ZIRCONIUM DIOXIDE: 6-YEAR EIGHT-YEAR RESULTS PROSPECTIVE CLINICAL STUDY

Gagik Hakobyan*, Mikayel Mikayelyan, Ashot Azizyan, Arsen Injigulyan, Suzanan Andreasyan, Arman Vardanyan

Yerevan State Medical University · Art Dent, Yerevan, Armenia · Art Dent, Yerevan, Armenia

Received: 2025-05-21 · Published: 2022-11-02

© 2022 The Author(s) and the original publisher.

CC BY-NC 4.0 This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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Original title
IMPLANT SUPPORTED FULL-ARCH ZIRCONIA-BASED RESTORATIONS MANUFACTURED (CAD/CAM) FROM MONOLITHIC ZIRCONIUM DIOXIDE: 6-YEAR EIGHT-YEAR RESULTS PROSPECTIVE CLINICAL STUDY
Authors
Gagik Hakobyan, Mikayel Mikayelyan, Ashot Azizyan, Arsen Injigulyan, Suzanan Andreasyan, Arman Vardanyan
Source journal
Bulletin of Stomatology and Maxillo-Facial Surgeryin of Stom
Published
2022-11-02
Licence
Creative Commons Attribution-NonCommercial 4.0 International
Original
https://doi.org/10.58240/1829006X-2022.18.1-56

Abstract

Purpose: To evaluate the survival of implants, the success of prosthetics of implant-supported reconstructions based on monolithic zirconium dioxide, functioning up to 5 years. Materials and Methods: In this study 87 patients were participated referred in need of full arch implant-supported reconstructions in maxilla, mandible or both. All patients underwent a thorough clinical examination according to a generally accepted scheme. After the diagnostic workup was completed, a treatment plan was developed by using a cone beam computed tomography and software system. Using surgical guides 46 patients' dental implants were installed. Postoperative clinical and radiological monitoring was regularly conducted, and criteria for thesuccess of implantation and success of prosthetics of implant-supported reconstructions were evaluated 642 implants (6 to 8 dental implants in the edentulous arches) were installed for monolithic zirconia full arch reconstructions. Prosthodontic treatment was performed 3 to 6 months after implants healing time. Digitaltechnologies were included in the work flow with the laboratory scanning of the master casts andCAD/CAM manufacturing software. The monolithic zirconia block was milled using CAD/CAM software according to the manufacturer’s specifications and then a monolithic zirconia restoration sintering. Outcome measures were: Implant success; prosthesis success; complications and marginal bone levels. Results: No intra-operative or immediate post-operative complications were noted. During a 3-year observation fracture of the monolithic zirconia or any other mechanical complications of prostheses, no registered, screws fractured in 3 prosthesis was observed over the 3-year study period. Conclusion: Our studies have shown good aesthetic, functional and mechanical properties of monolithic zirconia restorations and fewer complications.
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