Comparing immediate and delayed loading of zirconia dental implants

Immediate Versus Delayed Loading of Single Posterior Zirconia Implants: A Multicenter Randomized Controlled Clinical Trial

Phase 4 Interventional University of Milan · NCT05838365

This study tests whether putting zirconia dental implants in right away or waiting a couple of months leads to better success for patients with missing teeth.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment220 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorUniversity of Milan Academic / other
Drugs / interventionschemotherapy
Locations1 site (Milan)
Trial IDNCT05838365 on ClinicalTrials.gov

What this trial studies

This study investigates the success rate of zirconia dental implants loaded immediately within 7 days versus those loaded after 8 weeks. It focuses on patients with partial edentulism and evaluates various clinical and biological parameters over a 5-year period. The study aims to determine the effectiveness of each loading approach in terms of implant success and patient outcomes, using standardized criteria and patient-reported measures.

Who should consider this trial

Good fit: Ideal candidates are systemically healthy individuals with partial edentulism in premolar or molar positions who meet specific bone and tissue criteria.

Not a fit: Patients with serious health conditions, heavy smokers, or those with untreated periodontal disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into optimal loading times for dental implants, potentially improving patient outcomes and satisfaction.

How similar studies have performed: Previous studies have shown varying success rates with different loading protocols for dental implants, making this investigation relevant and potentially impactful.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Sistemically healthy patients
* partial edentulism
* premolar position
* molar position
* Bone width and height at least 6 and 10mm, respectively.
* Keratinized tissue, at least 1 mm at implant site
* Full understanding of the proposed surgical treatments and the protocol schedule
* Full comprehension and availability to sign the informed consent form

Exclusion Criteria:

* Heavy smokers (\>10 cigarettes a day)
* Serious kidney or liver diseases
* Uncontrolled diabetes
* Bisphosphonates intake
* History of radiotherapy of the head and neck
* Current antiblastic chemotherapy
* Congenital (primary) or acquired (secondary) immunodeficiency
* Pregnant women
* Connective tissue disorders

Local exclusion criteria:

* untreated stage III/IV periodontitis
* Autoimmune diseases
* oral parafunctions

Where this trial is running

Milan

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Dental Implant FailedPeri-implant MucositisPeri-Implantitis
Last reviewed 2026-06-13 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.