29/08/2025
Zeramex® XT and NobelPearl™ two-piece zirconia implants showed a 98.2% survival rate and stable peri-implant tissue conditions after up to 7 years (mean 3-year follow-up) – a new retrospective study by Tartsch et al. (2025) published in 𝑻𝒉𝒆 𝑰𝒏𝒕𝒆𝒓𝒏𝒂𝒕𝒊𝒐𝒏𝒂𝒍 𝑱𝒐𝒖𝒓𝒏𝒂𝒍 𝒐𝒇 𝑶𝒓𝒂𝒍 & 𝑴𝒂𝒙𝒊𝒍𝒍𝒐𝒇𝒂𝒄𝒊𝒂𝒍 𝑰𝒎𝒑𝒍𝒂𝒏𝒕𝒔 says.
In the study entitled “Two-piece Zirconia Implants: An Office-based Retrospective Study with up to 7 and Mean 3-Year Follow-Up”,
Dr. Jens Tartsch (Private Dental Practice in Kilchberg, Switzerland),
Prof. Dr. Bruno Chrcanovic (Department of Oral and Maxillofacial Surgery and Oral Medicine, Malmö University, Sweden),
Prof. Dr. Ann Wennerberg (Department of Prosthodontics, University of Gothenburg, Sweden),
Prof. Dr. Ralf Kohal (University Medical Center Freiburg, Center for Dental Medicine, Department of Prosthetic Dentistry, Faculty of Medicine, University of Freiburg), and
Prof. Dr. Tomas Albrektsson (Department of Biomaterials, University of Gothenburg, Sweden)
investigated the clinical performance of the two-piece zirconia implants (Zeramex® XT and NobelPearl™) with follow-up periods of up to 7 years as well as their surface topography.
Key results of the study:
· Between 2017 and 2024, 167 Zeramex® XT und NobelPearl™ implants were placed in 106 patients and followed for up to 88 months (mean follow-up: 39.1 months)
· The effective survival rate was 98.2% (three implants were lost – two due to fracture and one due to lack of osseointegration)
· Zeramex® XT and NobelPearl™ demonstrated stable peri-implant tissue conditions
· Mean marginal bone loss ranged between –0.14 mm and –0.58 mm
· The implant surfaces exhibited low roughness (Sa ~0.5 µm)
· In the univariate analysis, no clinical risk factor showed a significant association with implant loss
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