Investigation of Biofilm Formation on Temporary push-on Rings of Implant Crowns

Recruiting now · Not applicable

Conditions studied: Dental Plaque, Oral Biofilm, Peri-implantitis

In brief

This in-vivo study investigates early (48h), mature (2 weeks) and long-term (3 months) biofilm formation and composition on temporary push-on cones (exchangeable conical rings) made of noble-alloy-based materials (Pagalinor, PA) in comparison to Titanium-6Aluminum-7Niobium alloy (TAN) presently used in the transmucosal portion of dental implant abutments.

Key facts

Study ID

NCT05122897

Run by

University Hospital, Basel, Switzerland

People needed

33

Starts

2022-01-11

Expected to finish

2026-02-01

Last updated by the study team

2025-07-25

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Informed Consent signed by the subject
• Presence of one or more bone level titanium implant prior to insertion of the final restoration
• No systemic illness
• No heavy smoking (smoking <10 cigarettes/day)
• No pregnancy
• No active periodontitis (probing pocket depth ≤4 mm)
• No pharmacological treatment or antibiotic therapy during or up to three months before the study

You may not qualify if…

• Systemic illness (e.g. Diabetes)
• Heavy smoking (smoking >10 cigarettes/day)
• Known or suspected non-compliance, drug or alcohol abuse
• Pregnancy
• Active periodontitis (probing pocket depth >4 mm)
• Pharmacological treatment or antibiotic therapy during or up to three months before the study

Where it is running

• UZB (University Center for Dental Medicine Basel) — Basel, Switzerland (enrolling)

Full record on ClinicalTrials.gov

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