RecruitingNot Applicable

Treatment of Periodontal Intra-bony Defects With a Volume Stable Collagen Matrix or Deproteinized Bovine Bone Mineral With 10% Collagen

Switzerland80 participantsStarted 2025-09-01

Plain-language summary

To compare the healing of intrabony periodontal defects treated with either open flap debridement and a volume-stable collagen matrix (VCMX) or a deproteinized bovine bone mineral with 10% collagen. The results will shed light on the clinical potential of VCMX in regenerative periodontal surgery and help to develop new treatment strategies.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria * Patients with localized or generalized periodontitis Stage III and Stage IV, Grade A-B-C * Males and females * Age at least 18 years and older * Presence of interdental intra-bony defects (I, II and III walls) in either the maxilla or the mandible with a PD ≥ 6 mm * Defects with an intra-bony component \&gt; 3 mm for both groups * Intra-bony defect located only at one aspect (mesial or distal) * Presence of at least 2 mm of keratinized soft tissue. Exclusion Criteria * Patients with systemic disease that could interfere with periodontal wound healing * Prolonged antibiotic treatment or anti-inflammatory treatment within 4 weeks prior to surgery * Pregnant or lactating * Smokers with \&gt; 10 cig./day * Patients with FMPS and FMBS \&gt; 25 % after completion of non-surgical periodontal therapy * Multi-rooted teeth with furcation involvement * Third molars * Teeth with circumferential defects * Interdental craters * Written Informed Consent

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Clinical attachment level (CAL) change

Timeframe: 12 months

Trial details

NCT IDNCT06676826

SponsorUniversity of Bern

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2026-09-30

Contact for this trial

Alexandra Stähli, MD

+41316840600 alexandra.staehli@unibe.ch

View on ClinicalTrials.gov More Periodontal Diseases trials