Five-year randomized controlled clinical study comparing cemented and screw-retained zirconia-based implant-supported single crowns.

ABSTRACT:

Objectives

To compare screw-retained and cemented all-ceramic implant-supported single crowns regarding biological and technical outcomes over a 5-year observation period.

Materials and methods

In 44 patients, 44 two-piece dental implants were placed in single-tooth gaps in the esthetic zone. Patients randomly received a screw-retained (SR) or cemented (CR) all-ceramic single crown and were then re-examined annually up to 5 years. Outcome measures included: clinical, biological, technical, and radiographic parameters. Data were statistically analyzed with Wilcoxon-Mann-Whitney, Wilcoxon, and Fisher's exact tests.

Results

During the observation period, three patients (6.8%) were loss to follow-up. Eight restorations (18.2%, CI (8.2%, 32.7%)) were lost due to technical

SUBMITTER: Kraus RD 

PROVIDER: S-EPMC9313572 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature