Treatment of Peri-implantitis Lesions by Using Biomaterial

Not Applicable

Completed

• Conditions: Peri-implantitis
• Interventions: Other: Standard treatment; Device: GBO and GBG

• Registration Number: NCT02375750
• Lead Sponsor: Geistlich Pharma AG

Brief Summary

The primary objective of the study is to proof the successful use of Geistlich Bio-Oss® and Geistlich Bio-Gide® (already registered medical devices) in bony peri-implant defects due to peri-implantitis disease.

Detailed Description

Patient who will considered eligible at the screening visit will undergo surgical treatment procedure within 2 weeks. At the day of the surgery the patients will be randomized into the 2 treatment groups.

The subjects will be then prescribed postoperative antibiotics (Azitromax 500 mg day one and 250 mg day 2-4).

Post-operative pain will be controlled with Ibuprofen (400mg x 3) for two days to all subjects. Subjects will rinse twice daily with Chlorhexidine mouth rinse and use modified oral hygiene procedures during the first 5 weeks of healing. Subjects will receive professional prophylaxis as required.

Subjects will be instructed on appropriate oral hygiene throughout the study and will be given appropriate oral hygiene instructions. Instructions on post-operative care will be repeated at each visit. In particular the following points have to be covered during the first month after surgery: Chlorhexidine rinses, avoidance of brushing, usage of interdental cleaning devices, avoidance of chewing on or trauma to the treated area. In addition subjects will be instructed not to smoke more than 10 cigarettes per day during the entire study period and not to consume alcohol during antibiotic therapy.

Sutures will be removed after 14 days. Photos will be taken during the whole study to document the healing process.

Further follow up visits will be scheduled 6 weeks and 3,6,9,12 months post-surgery.

Study Timeline

• Study First Submitted: 2014-07-07
• Study Start: 2014-09
• Study First Submitted QC: 2015-03-02
• Study First Posted: 2015-03-03
• Primary Completion: 2017-02
• Study Completion: 2017-04
• Status Verified: 2019-02
• Last Update Submitted: 2019-02-22
• Last Update Posted: 2019-02-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 71

Inclusion Criteria

• age 18 years or older
• Presence of peri-implantitis
• A peri-implant intraosseous defect with at least 3 mm defect depth as seen on an intraoral radiograph.
• Clinically a probing depth ≥ 5 mm combined with bleeding and/or pus should be present at the site.
• During surgical exploration an intraosseous component of at least 3 mm at the deepest point must be present.
• The defect should have a minimum of 3 osseous walls (a circumference of the osseous defect of at least 270 degrees). Only 3 and 4 wall intraosseous defects will be included.
• Implants included in the study must have been in function for more than 12 months.
• Ability to fully understand the nature of the proposed surgery and ability to sign an Ethics Committee-approved informed consent form

Exclusion Criteria

• Subjects with diabetes mellitus (HbA1c > 7.0)
• Subjects taking prednisone or other anti-inflammatory prescription drug
• Subjects taking medications known to have effects on gingival growth
• If the same patient has more than one defect meeting the inclusion criteria, only one such defect will be included in the study
• General contraindications for dental and/or surgical treatments
• Smokers (> 10 cigarettes per day).
• Pregnant or lactating women
• Allergy to collagen
• Inability to consent for participation in the study and/or to accept the proposed

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Standard treatment	Standard treatment	Decontamination of surface of implant
GBO and GBG	GBO and GBG	0.2 g-0,5 g GBO and 1 GBG once after decontamination of implant surface

Primary Outcome Measures

Name	Time	Method
Change in the dimensions of the bone defect	6 months, 1 year

Secondary Outcome Measures

Name	Time	Method
Change in pocket depth	3 months,6months, 9 months,12months
Change in gingival inflammation	3 months,6months, 9 months,12months
Changes in recession of the mucosal margin	3 months,6months, 9 months,12months
Subject satisfaction with the outcome at the study end	12months

Trial Locations

Locations (1)

Kristianstad University, Department of Health Sciences; 🇸🇪 Kristianstad, Sweden