A Clinical Study to Investigate Collagen Matrix 10808 for Soft Tissue Volume Augmentation Around Single Implants

Inclusion Criteria: 1. Implant placement at least 6 weeks and maximum 6 months prior enrolment 2. Necessity of soft tissue augmentation in single tooth gap 3. 2 teeth adjacent to each side of the defect have a mean BOP (Bleeding of probing) of \< 30% 4. Basic periodontal examination (BPE \<2) 5. 18 years or older 6. Ability to comply with the study-related procedures such as exercising good oral hygiene and attending all follow-up procedures 7. Ability to fully understand the nature of the proposed surgery and ability to sign the informed consent form Exclusion Criteria: 1. Heavy smoker (\> 10 cigarettes per day) 2. Probing depth greater than 4 mm 3. Insulin dependent diabetes 4. General contraindications for dental and/or surgical treatment 5. History of malignancy, radiotherapy, or chemotherapy for malignancy within the past five years 6. Women of child bearing age, not using a standard accepted method of birth control 7. Pregnancy or breast feeding 8. Previous and concurrent medication affecting mucosal healing in general (e.g. steroids, large doses of anti-inflammatory drugs) 9. Disease affecting connective tissue metabolism (e.g. collagenases). 10. Allergy to collagen 11. Participation in a clinical trial within the last six months