Actively Recruiting
Comparison of Two Collagen Membranes for Bone Augmentation Around Dental Implants Restored with Monolithic Zirconia Single Crowns
Led by Dr. med. dent. Malin Strasding · Updated on 2024-12-09
68
Participants Needed
1
Research Sites
378 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The goal of this randomized controlled clinical trial is to compare the use of two covering collagen membranes in a bone augmentation procedure around single implants and to assess three different veneering approaches on crowns in patients lacking a single tooth in the esthetic zone. The main aims include: 1. Bone stability, i.e. the difference in the bone defect depth 4 months after bone augmentation 2. The occurrence of ceramic restoration chipping at the inserted single crowns after 5 years. Participants will receive an implant with simultaneous bone augmentation using the bone particles and a covering collagen membrane. After the healing period, they will receive a crown restoration on the implant. In the surgical part, researchers will compare the commonly used collagen membrane with the compressed (stronger) version of the same collagen membrane in an otherwise identical procedure to evaluate if the compressed membrane offers the same or better bone stability. In the restorative part, researchers will compare three types of crown finishes: non-veneered, conventionally veneered and window-veneered (test group) Participants will be asked to come to follow-up appointments over a period of 7 years. Depending on the follow-up time in the study, different dental measurements will be taken to assess the stability of the implants and restorations.
CONDITIONS
Official Title
Comparison of Two Collagen Membranes for Bone Augmentation Around Dental Implants Restored with Monolithic Zirconia Single Crowns
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Informed Consent signed by the subject
- ≥18 years of age
- No active periodontal disease
- Full-mouth plaque score and full-mouth bleeding score <25%.
- Patients in need of an implant-supported crown at a single-tooth gap in the aesthetic region: 11-15, 21-25, 31-35, 41-45 (FDI)
- Patients in need of GBR during implant placement (1-stage procedure)
- Presence of mesial and distal natural teeth or implant
- Implant placement at least 6 weeks after tooth extraction
- No need for soft tissue grafting
You will not qualify if you...
- Any conditions or circumstances which would interfere with the requirements for oral surgery
- Patients with large bone defects, in need of a primary bone augmentation (two-stage procedure)
- Allergy to any implant metallic component
- Allergy to collagen
- Previous oral-maxillo-facial radiotherapy
- Any disorders in the planned implant area such as previous tumors, chronic bone
- disease (such as rheumatoid disease)
- Any ongoing application of interfering medication (steroid therapy, bisphosphonate, etc.)
- Alcohol or drug abuse
- No need for soft tissue grafting
- Patients with inadequate oral hygiene or persistent oral infection
- Clinically significant concomitant diseases (e.g. renal failure, hepatic disfunction, cardiovascular diseases)
- Heavy smokers (>10 cigarettes/day)
- Uncontrolled diabetes
- Severe bruxism or other destructive habits
- Pregnant or lactating women
AI-Screening
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Trial Site Locations
Total: 1 location
1
University of Geneva
Geneva, Canton of Geneva, Switzerland
Actively Recruiting
Research Team
M
Malin Strasding, Dr dent med
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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