Clinical trial Recruiting at 1 site Observational Ages 18 and up

Gum recession in adults with and without prior orthodontic treatment

Official title: Gingival Recessions in Orthodontically Treated and Untreated Adult Patients: a Prospective Study

Run by Universitaire Ziekenhuizen KU Leuven · NCT07445555 · Data updated 2026-11-12

We will test which patient and tooth factors increase the chance of gum recession in adults who have or have not had orthodontic treatment.

More Gingival Recession trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment50 (estimated)
SponsorUniversitaire Ziekenhuizen KU Leuven
Academic / other
Drugs / interventionschemotherapy
Locations1 site (Leuven)
StatusRecruiting
StartedNovember 15, 2023
Main results expectedJuly 15, 2026
Study endsSeptember 1, 2027
Registry record updatedMarch 3, 2026
Trial IDNCT07445555 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18 or older, classified ASA I–II, with or without previous orthodontic treatment and without periodontal disease or excluded medications are the intended participants.

Probably not a fit

Patients with active periodontal disease, those taking excluded medications, people with prior radio/chemotherapy, pregnant or breastfeeding individuals, or those with agenesis of lower incisors are excluded and would not benefit from this protocol.

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

What this trial studies

This observational study will record clinical, demographic, periodontal, occlusal, and orthodontic-history parameters in adult patients with and without prior orthodontic treatment to identify features linked to gingival recession. Treated and untreated groups will be compared and site- and patient-level variables such as gingival phenotype, tooth position, brushing trauma, smoking, and frenal attachment will be analyzed. Patients with active periodontal disease, certain medications, prior radio- or chemotherapy, pregnancy or breastfeeding, or agenesis of lower incisors are excluded. The ultimate aim is to produce a practical clinical guideline to estimate the risk of developing post-orthodontic gingival recession.

Why it matters

Potential benefit: If successful, clinicians could better predict who is likely to develop gum recession after orthodontic care and offer tailored prevention or treatment planning.

How similar studies have gone: Previous observational reports have suggested associations between orthodontic treatment and gingival recession but results are inconsistent, so this approach builds on suggestive but not definitive prior findings.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with or without previous history of orthodontic treatment with and without gingival recessions
* ≥ 18 years old
* American Society of Anesthesiologists Classification I or II

Exclusion criteria:

* Patients with history of periodontal disease
* taking the following medication: anticoagulants, phenytoin, cyclosporine, nifedipine or calcium channel blockers
* Patients with prior history of radio or chemotherapy
* Pregnant or breastfeeding patients
* Patients with agenesis of one or more lower incisors

Exclusion Criteria:

Patients with history of periodontal disease Patients taking the following medication: anticoagulants, phenytoin, cyclosporine, nifedipine or calcium channel blockers Patients with prior history of radio or chemotherapy Pregnant or breastfeeding patients Patients with agenesis of one or more lower incisors

Where it's running

  • UZ Leuven
    Leuven, Belgium
    Recruiting

Study contacts

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.