Timing of free gingival grafts to increase gum tissue around lower back dental implants

Is this trial a fit for you?

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

What this trial studies

This interventional study compares two surgical timings for free gingival grafting at mandibular posterior implant sites with insufficient buccal keratinized mucosa. One group receives the graft before implant placement and the other receives it during the second-stage implant surgery. Clinical measurements of soft- and hard-tissue stability, keratinized mucosa width, and related outcomes will be recorded over follow-up visits. Eligible patients are adults with partially edentulous mandibular posterior sites planned for implant-supported fixed restorations and buccal keratinized mucosa under 2 mm.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Age ≥ 18 years, gender unrestricted;
* partially edentulous in the mandible posterior area, planned for implant-supported fixed restoration;
* Buccal keratinized mucosa width at the implant site is less than 2mm, with the transplantation area not exceeding 2 teeth;
* No soft tissue augmentation performed at the site prior to surgery;
* Overall health is good, with no systemic diseases that may affect bone metabolism or wound healing;
* Good periodontal condition, no progressive alveolar bone resorption, no periodontal abscess;
* Smoking ≤ 10 cigarettes per day.

Exclusion Criteria:

* Uncontrolled metabolic diseases;
* Severe periodontal disease, with unstable periodontal condition;
* Smoking \> 10 cigarettes per day;
* Unwilling to participate in the follow-up of this study;
* Other conditions that do not meet the requirements for implant treatment.

Where it's running

• The Stomatology Hospital, Zhejiang University School of Medicine
  Hangzhou, Zhejiang, China Recruiting

Study contacts

• Study coordinator: Misi Si
• Email: misi_si@zju.edu.cn
• Phone: +86 18605712858

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

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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.