{Reference Type}: Journal Article
{Title}: Clinical evaluation and patient related outcomes of one- and two-piece zirconia implants at five years of loading: A case series study.
{Author}: Sala L;Zufía J;Blasi G;Carrillo-de-Albornoz A;
{Journal}: J Esthet Restor Dent
{Volume}: 35
{Issue}: 4
{Year}: 06 2023 30
{Factor}: 3.04
{DOI}: 10.1111/jerd.13002
{Abstract}: The objective of this study was to investigate the survival and biological and mechanical complications of one-piece and two-piece zirconia implants at five years of loading.<BR>Consecutive patients receiving zirconia implants were studied, collecting data at five years of loading on their clinical history, peri-implant health status, mechanical complications, esthetic results, and patient related outcomes.<BR>The study included 18 patients with 29 implants. The survival rate was 86% in implant-based analysis and 78% in patient-based analysis. There were no cases of peri-implantitis, but mucositis was present in 53% of implants. A mean of 4.1 ± 0.81 mm was obtained for probing depth and 1.6 ± 0.9 mm for crestal bone loss (radiographic assessment). There were no implant fractures. Major (10%) and minor (10%) prosthesis complications were observed. The esthetic outcome was moderate to almost perfect, with a high level of patient satisfaction. No significant association was found between survival rate and the presence of mucositis around one- or two-piece implants or any other study variable.<BR>The survival rate is low for one- and two-piece zirconia implants. Both types of implants demonstrated a low mechanical complication rate. The incidence of periimplantitis is low but mucositis is present in 50%. Patient satisfaction related to esthetics and function is moderate to high. They represent a good option for patients requiring an alternative to titanium implants.<BR>Zirconia implants appear to be an alternative to the titanium option and may be indicated for patients requiring "metal-free" restorations.