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Randomized controlled clinical multi-center study to investigate effectiveness and safety of a Collagen Matrix 10808 for soft tissue volume augmentation after implant placement in single tooth gaps compared to autogenous connective tissue graft

Randomized controlled clinical multi-center study to investigate effectiveness and safety of a Collagen Matrix 10808 for soft tissue volume augmentation after implant placement in single tooth gaps compared to autogenous connective tissue graft

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00005944
Enrollment
86
Registered
2014-03-03
Start date
2014-06-11
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

K08.1

Interventions

Group 1: The patients of a group in arm 1 obtain during the surgery a Collagen Matrix 10808, in order to gain a mucosal thickness around an implant placement. Group 2: The patients of a group in arm 2

Sponsors

Geistlich Pharma AG
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Inclusion Criteria 1. 18 years or older 2. Ability to comply with the study-related procedures such as exercising good oral hygiene and attending all follow-up procedures 3. Ability to fully understand the nature of the proposed surgery and ability to sign the informed consent form 4. Necessity of soft tissue augmentation in a single tooth gap 5. Implant placement at least 6 weeks prior baseline examination 6. One tooth adjacent to each side of the defect with a mean BOP of < 20% 7. Basic periodontal examination (BPE) <2

Exclusion criteria

Exclusion criteria: Exclusion criteria 1.Presence of a bony dehiscence >3 mm at the implant site assessed at the time of surgery (soft tissue augmentation) 2.Heavy smoker (> 10 cigarettes per day) 3.Presence of periodontal disease 4.Insulin dependent diabetes 5.General contraindications for dental and/or surgical treatment 6.History of malignancy, radiotherapy, or chemotherapy for malignancy within the past five years 7.Women of child bearing age, not using a highly effective method of birth control 8.Pregnancy or breast feeding 9.Previous and concurrent medication affecting mucosal healing in general (e.g. topical steroids, large doses of anti-inflammatory drugs) 10.Disease affecting connective tissue metabolism 11.Any systemic diseases that contraindicate implant placement 12.Allergy to collagen 13.Participation in an investigational device or drug clinical trial within the last six months

Design outcomes

Primary

MeasureTime frame
Gain in mucosal soft tissue thickness at day 120 compared to Baseline value measured by trans-mucosal probing at the crest (occlusal) of the soft tissue ridge.

Secondary

MeasureTime frame
Safety endpoints to be assessed are: 1.Assessment of AEs from Visit 1 to Visit VIII 2.Closure of the wound at day 0 (BL 1), 10, 30, 120 3.Presence of swelling at day 0 (BL 1), 10, 30, 120 4.Oral health impact profile (OHIP-G14) score at day 0 (BL 1), 10 and 120 5.Daily cumulative Ibuprofen consumption between day 0 (BL 1) and day 10 6.Cumulative Ibuprofen consumption between day 10 and day 30 and day 30 and 120 7.Evaluation of pain using a VAS score daily between day 0 (BL 1) and day 10 and at day 30 and at day 120 8.Surgery time Effectiveness endpoints: 1.Gain in mucosal soft tissue thickness at day 120 compared to day 0 (BL 1) value measured by trans-mucosal probing (buccal, apical) of the soft tissue ridge. 2.Gain in mucosal soft tissue thickness measured at day 30 compared to day 0 (BL 1) by trans-mucosal probing (occlusal, buccal, apical) 3.Gain in mucosal soft tissue thickness at day 30 and 120, compared to day 0 (BL 1) based on a 3D volumetric analysis 4.Changes in mucosal soft tissue volume between final restoration at day 180 (Final Restoration / BL 2), compared to day 360 after BL 2 based on a 3D volumetric analysis 5.Changes in mucosal soft tissue thickness measured at day 360 after final restoration (BL 2) compared to day 180 (Final restoration / BL 2) by trans-mucosal probing 6.KT width, PD, CAL, BOP, PI at day 0 (BL 1) and at day 120 7. Soft tissue esthetics measured at day 180 (Final restoration / BL 2) and 360 after Final restoration (BL 2)

Countries

France, Germany, Italy, Spain, Switzerland

Contacts

Public ContactMarco Nief

Geistlich Pharma AG

marco.nief@geistlich.ch+41 44 492 56 72

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026