Viewing Study NCT03163602


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Study NCT ID: NCT03163602
Status: COMPLETED
Last Update Posted: 2022-08-05
First Post: 2017-04-14
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Surgical Treatment of Peri-implantitis
Sponsor: The University of Western Australia
Organization:

Study Overview

Official Title: Surgical Treatment of Peri-implantitis. A Randomised Controlled Trial.
Status: COMPLETED
Status Verified Date: 2022-08
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: STP
Brief Summary: The aim of this randomized controlled study is to evaluate the outcome of surgical treatment of peri-implantitis with and without the use of a bone substitute graft covered by a collagen membrane. There will be a follow up period of 12 months. Outcome measures will include assessments of inflammation, probing depth, recession, radiological parameters and PROMs.
Detailed Description: The aim of this randomized controlled study is to evaluate the possible benefit of a regenerative treatment protocol (placing a bone substitute covered by a bioresorbable collagen membrane) compared to surgical treatment alone, for peri-implantitis therapy.

The hypothesis is that there will be a greater number of patients with successful treatment of peri-implantitis following the use of a bone substitute/collagen membrane compared to surgical peri-implantitis therapy without the bone substitute/collagen membrane.

The project will be conducted as a two-armed randomized controlled clinical trial of 1-year duration. Forty systemically healthy patients with ≥1 implant diagnosed with peri-implantitis requiring surgical therapy will be enrolled.

Baseline measurements will be performed after non-surgical therapy (removal supramucosal biofilm/calculus, oral hygiene instruction and correction of prosthetic factors) and treatment of periodontitis.

Baseline measurements will include probing depth, position of mucosal margin, presence of plaque, presence of bleeding and/or suppuration on probing, PROMs and radiographs. Measurements will be recorded at 4 sites per implant.

Following the baseline measurements participants will be randomly assigned to either Control Group (Group 1): access flap and implant cleaning or Test Group (Group 2): access flap, implant cleaning and addition of a bone substitute material covered by a collagen membrane.

Participants in both treatment groups will be prescribed systemic antimicrobials (Amoxicillin 500 mg tds and Metronidazole 400 mg tds) for 7 days starting from the day of surgery.

In addition an antibacterial mouthrinse (chlorhexidine digluconate 0.2%) will be prescribed for a period of 4 weeks following surgery.

Participants will be asked to attend follow-up visits for review of healing (week 1 and 4) and maintenance care (3, 6, 9, and 12 months).

Clinical examinations will be performed by a calibrated blinded examiner at baseline and 12 months after therapy. Clinical measurements will be taken using a periodontal probe at 4 sites per implant to record presence of plaque, bleeding, probing depth and recession of the soft tissue.

PROMS will be assessed at 1 week, 4 weeks and at 12 months. Radiographic assessments Intra-oral radiographs and cone beam CT scan will be obtained prior to surgery and at 12 months. Oral-maxillofacial radiologists will. perform the radiographic analysis and will be blinded to the treatment procedure.

Primary outcome variables include (1) resolution of peri-implantitis (probing depth reduction and absence of BoP, suppuration) (2) recurrence of disease (BoP, suppuration and increase in PPD and progression of bone loss.

Study Oversight

Has Oversight DMC: False
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: False
Is an FDA AA801 Violation?: