Soft-tissue dehiscence in the upper jaw (single tooth implant or pontic)
Conditions
Interventions
Group 1: Soft-tissue augmentation
Sponsors
Universität Zürich, Zentrum für Zahnmedizin, Klinik für Rekonstruktive Zahnmedizin
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: • Maxillary single implant sites with two neighboring teeth or pontic sites with two neighboring teeth aimed for reconstruction with an FDP or an RBB • GBR procedures and implant surgeries at least 3 months ago (if performed) • Biologic or esthetic indication for a soft tissue augmentation • Clinical attachment level >80% at neighboring teeth
Exclusion criteria
Exclusion criteria: • Active periodontitis (PD =5mm) • Smoking of >10 cigarettes per day • General contraindications for dental and/or surgical treatment • Uncontrolled diabetes • Pregnancy or breast feeding • Disease affecting connective tissue metabolism (e.g. collagenases) • Allergy to collagen-based substitutes • Allergy against local anesthetics
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Volumetric change from Baseline (visit 1) to 8 weeks of healing following soft tissue augmentation (visit 4), based on intraoral scans (STL-files) | — |
Secondary
| Measure | Time frame |
|---|---|
| • Initial soft tissue thickness (CBCT scan) • Flap tension at wound closure (measured with a high precision advanced force strain gauge) • Volume gain following surgery (Superimposition of STL files) • Flap thickness at surgery (with caliper) • Surgery time from first incision to last suture • Mucosal scarring index at 1 week following surgery | — |
Countries
Switzerland
Contacts
Public ContactStefan Bienz
Universität Zürich, Zentrum für Zahnmedizin, Klinik für Rekonstruktive Zahnmedizin
Outcome results
None listed