A Prospective Clinical Cohort Investigation on Zirconia Implants: 5-Year Results

Abstract

Mid-term data on zirconia oral implants is very rare. Therefore, the aim of this prospective clinical investigation was to evaluate the survival rate and the marginal bone loss of a one-piece zirconia implant after five years. Patient-reported outcomes were also recorded. Zirconia implants to support single crowns (SC) or a 3-unit fixed dental prosthesis (FDP) were placed and subsequently restored. After the insertion of the implants, at prosthetic delivery, and after five years, standardized radiographs were taken to evaluate marginal bone loss (MBL). For bone tissue evaluation, linear mixed models with random intercepts were fitted. Twenty-seven patients received one implant for an SC and 13 patients received two implants for a 3-unit FDP. Three patients each lost one implant for an SC before prosthetic delivery. Thirty-five patients were seen after five years, and no further implant was lost. The cumulative five-year implant survival rate was 94.3%. The MBL from implant installation up to five years was 0.81 mm. The MBL from implant installation to prosthetic delivery was statistically significant (p < 0.001). Patients perceived a significant improvement in function, esthetics, sense, speech, and self-esteem from pretreatment up to the five-year follow-up. The present findings substantiate the clinical applicability of this implant system.

Influence of zirconia implant surface topography on first bone implant contact within a prospective cohort study

“…Among these aspects, zirconia implants can be considered a viable alternative to titanium implants 9‐11 . Nevertheless, clinical data on zirconia implants are currently based mainly on studies with short observation periods 9‐12 and few studies with medium‐term observation periods reporting promising survival rates after 5 and more years in situ 13‐16 …”

Two‐piece zirconia implants supporting all‐ceramic crowns: Six‐year results of a prospective cohort study

“…Unfortunately, long-term studies are still limited and mainly focused on one-piece zirconia implant systems (Balmer et al, 2020;Kohal et al, 2020;Roehling et al, 2016). Two recent studies on one-piece zirconia implant have demonstrated a 5-year survival rate between 94.3% and 98.4% Balmer et al, 2020;Kohal et al, 2020). Variability in outcomes could be attributed to the differences in implant design and material, surface treatment, and prosthetic reconstructions.…”

“…Moreover, recent publications on one-piece zirconia implants have reported survival rates of 94.3% and 98.4% after 5 years (Balmer et al, 2020;Kohal et al, 2020).…”

The Anatomical Conditions of the Alveolar Process of the Anterior Maxilla in Terms of Immediate Implantation—Radiological Retrospective Case Series Study

“…Dental implants are a recognized, safe, and long-lasting method of replacing missing teeth, appreciated by patients and leading to an increase in oral health quality of life [ 1 , 2 , 3 ]. Intensive development of scientific research concerning novel materials used for the production of dental implants and the modifications of their surfaces is currently being observed.…”

“…Intensive development of scientific research concerning novel materials used for the production of dental implants and the modifications of their surfaces is currently being observed. The aim of this observation is to accelerate the increase of osteointegration with the patient’s bone [ 3 , 4 ]. The research activity, which is based on the strength and durability of osteointegration, results from the patient’s expectation to expand qualifying indications for dental implantology.…”