A multi-center retrospective assessment of monolithic zirconia restorations on posterior teeth and implants.

  • Sandra AlTarawneh Head of Department of Prosthodontics, School of Dentistry, the University of Jordan, Amman, Jordan.
  • Motasum Abu-Awwad Department of Prosthodontics, School of Dentistry, the University of Jordan, Amman, Jordan.
  • Salah Riyal Riyal dental clinics, Amman, Jordan.
  • Rania Samara Private practice, Amman, Jordan
  • Susan Hattar Department of Conservative Dentistry, School of Dentistry, the University of Jordan, Amman, Jordan


Objective: the purpose of this multicenter retrospective study was to report on survival, success, and complication rates in monolithic zirconia restorations on teeth and implants. Materials and Methods: data on 671 monolithic zirconia restorations was collected by five prosthodontists from three different specialty practice centers, including a dental school and two private practice centers. Restorations included single crowns and multiple-unit fixed dental prostheses on teeth and implants in the posterior area (premolar and molars). Follow-up time was up to 62 months. Results: mean follow-up time was 28.1±12.9 months. A total of 671 units, 534 single crowns, and 137 multi-unit restorations. Cumulative survival and success rates at 5 years were 97.4%, and 93.8% respectively. Complications presented in 11 restorations out of 671 and included: decementation, abutment screw loosening, restoration crack, restoration fracture, and tooth fracture. No significant differences were observed between tooth-supported and implant-supported restoration (p=0.42), single crowns and multiple-unit restorations (p=0.07), bruxers and non-bruxers (p=0.57). Patients with group function occlusal scheme had significantly less survival rates (p=0.001). Conclusion: the use of monolithic zirconia for restorations on the posterior teeth and implants seems to be promising as it provides a durable solution with a low rate of complications.


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How to Cite
ALTARAWNEH, Sandra et al. A multi-center retrospective assessment of monolithic zirconia restorations on posterior teeth and implants.. Journal of Oral Research, [S.l.], v. 8, n. 4, p. 298-304, oct. 2019. ISSN 0719-2479. Available at: <https://joralres.com/index.php/JOR/article/view/joralres.2019.044>. Date accessed: 16 oct. 2021. doi: https://doi.org/10.17126/joralres.2019.044.