Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Comparing two types of dental implants over five years

Official title: Comparative Performance of Two-piece Zirconia Tissue Level Implants vs. Titanium Bone Level Implants Placed With a Fully Digital Workflow - 5-year Follow up of a Randomized Clinical Trial

Run by The University of Hong Kong · NCT05326880 · Data updated 2026-11-12

This study is testing whether a new ceramic dental implant works better and is safer than a traditional titanium implant for replacing single teeth over five years.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment60 (estimated)
SponsorThe University of Hong Kong
Academic / other
Locations2 sites (Düsseldorf and 1 other locations)
StatusRecruiting
StartedJanuary 3, 2022
Main results expectedDecember 2027
Study endsMarch 2028
Registry record updatedNovember 21, 2023
Trial IDNCT05326880 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older who require a single tooth replacement in the premolar-to-premolar area and can comply with study protocols.

Probably not a fit

Patients with conditions that may interfere with study participation or those who are pregnant will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study is a post-market, randomized-controlled trial designed to compare the medium-term performance and safety of two types of dental implants: the Straumann PURE 2-piece Ceramic Implant and the Straumann Bone Level Implant. It aims to evaluate the occurrence of biological and technical complications, as well as patient satisfaction and aesthetic outcomes over a five-year period. Participants will receive either a ceramic or titanium implant for single tooth replacement in the premolar-to-premolar area, and their progress will be monitored through scheduled follow-up visits. The study utilizes a fully digital workflow to enhance the accuracy and efficiency of the implant procedures.

Why it matters

Potential benefit: If successful, this study could provide insights into which type of dental implant offers better long-term performance and patient satisfaction.

How similar studies have gone: Previous studies have shown varying success with different types of dental implants, but this specific comparison of zirconia versus titanium implants is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

following criteria must be met for inclusion in the study:

* Patients must have voluntarily signed the Informed Consent Form before any study related procedures are performed, are willing and able to attend scheduled follow-up visits and agree that the pseudonymized data will be collected, analyzed, and published.
* Patients must be males or females who are a minimum of 18 years of age.
* Patients, who have received a single tooth replacement with a study implant as per-protocol in the premolar-to-premolar area (excluding lower incisors) in the mandible and maxilla and restored with a screw retained ceramic crown.

Exclusion Criteria:

* Patients with conditions or circumstances, in the opinion of the Investigator, which would prevent completion of study participation or interfere with analysis of study results, such as history of non-compliance or unreliability.
* Pregnancy or intention to become pregnant at any point during the study duration.

Where it's running

  • Clinical Research Centre, Faculty of Dentistry, the University of Hong Kong
    Hong Kong, Hong Kong
    Recruiting
  • Dusseldorf University Hospital, Poliklinik für Zahnärztliche Prothetik
    Düsseldorf, Germany
    Not yet recruiting

Study contacts

  • Principal investigator: Melissa R. Fok, Dr. — The University of Hong Kong
  • Study coordinator: Melissa R. Fok, Dr.
  • Email: melfok@hku.hk
  • Phone: +852 2859 0301

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.