Peri-implantitis Treatment With Chitosan Brush

NCT06830200 | Recruiting

• 1 other identifier: KA-23071
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

In dentistry, dental implant applications for tooth loss/deficiency are prominent and provide successful long-term results in terms of functionality and aesthetics. However, peri-implant diseases such as peri-implant mucositis and peri-implantitis may develop due to biofilm accumulation around the implant. In peri-implantitis, in addition to the clinical inflammation findings seen in peri-implant mucositis, there is also progressive bone loss. This condition is to be treated with non-surgical or surgical methods. Titanium curettes, ultrasonic instruments, laser systems, and chitosan brushes are used for biofilm removal in non-surgical treatment. Chitosan is a natural polysaccharide obtained from chitin. It is biocompatible, biodegradable, and has antibacterial activity. In addition, chitosan reduces the levels of IL-1β, IL-6, and TNF-α, which also play a role in the pathogenesis of peri-implantitis, and exhibits anti-inflammatory effects on macrophages activated by lipopolysaccharide. Although many methods are used to treat peri-implantitis, successful and predictable results cannot be obtained. This study aims to examine the clinical and immunological findings and observe the changes in the non-surgical treatment of peri-implantitis using chitosan brush or titanium curette over 12 months. Sixty dental implants diagnosed with peri-implantitis clinically and radiographically at the Department of Periodontics, Faculty of Dentistry, Hacettepe University will be included in the study. Non-surgical peri-implantitis treatment of these patients will be performed using a chitosan brush (N=30, case group) or titanium curette (N=30, control group). Pre-operative and post-operative 3rd, 6th, and 12th months, clinical periodontal indices will be recorded, peri-implant crevicular fluid (PIF) will be collected, and maintenance treatment will be applied to the patients. IL-1β, TNF-α, IL-8, IL-10, and IL-17 levels in the collected PIF will be determined by the ELISA method. The effectiveness of chitosan brush and titanium curette in treating peri-implantitis will be evaluated and compared clinically and immunologically.

Conditions

Peri-implantitis

Keywords

Chitosan Brush; Non-Surgical Peri-implantitis Treatment; Peri-implantitis; Cytokine; Titanium Curette

Outcome Measures

Primary Outcomes (2)

• Probing Pocket Depth

  The distance between the mucosal margin and the bottom of the peri-implant pocket \[six sites (mesiobuccal, buccal, distobuccal, mesiolingual, lingual and distolingual) on each implant\]

  From the baseline to the 12th month (Baseline, 3rd, 6th, 12th months)

• Radiographic Bone Level (RBL)

  RBL is determined in millimeters by metrically measuring the distance from the implant shoulder to the first bone-implant contact on the radiograph. Increasing RBL indicates worse outcome

  From the baseline to the 12th month (Baseline, 6th, 12th months)

Secondary Outcomes (10)

• Gingival index (GI)

  From the baseline to the 12th month (Baseline, 3rd, 6th, 12th months)

• Plaque Index (PI)

  From the baseline to the 12th month (Baseline, 3rd, 6th, 12th months)

• Bleeding on Probing

  From the baseline to the 12th month (Baseline, 3rd, 6th, 12th months)

• Keratinized Mukoza Width

  From the baseline to the 12th month (Baseline, 3rd, 6th, 12th months)

• Recession Depth

  From the baseline to the 12th month (Baseline, 3rd, 6th, 12th months)

Study Arms (2)

Chitosan Brush

ACTIVE COMPARATOR

The implants in the chitosan brush group will be debrided with a chitosan brush dipped in sterile physiological saline solution using a rotary instrument system for 2 minutes. After mechanical treatment, the peri-implant pockets will be washed with sterile physiological saline solution. In cases with BOP+ and PD≥ 4 mm at 3 and 6 months after treatment, the treatment will be repeated in the same way as the previous one. Local infiltration anesthesia will be applied to the patients when deemed necessary. The prosthetic superstructures of the implants will not be removed for clinical examination or treatment. In cases where there is more than one implant in the same patient requiring peri-implantitis treatment, all of these implants will be included in the same treatment group.

Procedure: Non-surgical periodontal treatment with chitosan brush

Titanium Curette

ACTIVE COMPARATOR

The implants in the titanium curette group will be treated with titanium curettes for 2 minutes. After mechanical treatment, the peri-implant pockets will be washed with sterile physiological serum. In cases with BOP+ and PD≥ 4 mm at 3 and 6 months after treatment, the treatment will be repeated in the same way as the previous one. Local infiltration anesthesia will be applied to the patients when deemed necessary. The prosthetic superstructures of the implants will not be removed for clinical examination or treatment. In cases where there is more than one implant requiring peri-implantitis treatment in the same patient, all of these implants will be included in the same treatment group.

Device: Non-surgical treatment of pre-implantitis with titanium curette

Interventions

Non-surgical periodontal treatment with chitosan brush PROCEDURE

Non-surgical treatment of pre-implantitis with chitosan brush

Chitosan Brush

Non-surgical treatment of pre-implantitis with titanium curette DEVICE

Description: Non-surgical treatment of pre-implantitis with titanium curette

Titanium Curette

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Presence of peri-implantitis in an implant that has been in function for more than 12 months
• Age ≥ 18 and \< 65
• Agreeing to participate in the study after reading the informed consent form

You may not qualify if:

• Patients under 18 years of age
• Patients who have received or are currently receiving radiotherapy, chemotherapy and long-term systemic corticosteroid treatment
• Patients who received systemic antibiotics within 6 months from baseline
• Pregnant or lactating patients
• Patients with anatomical abnormalities around the implant (e.g., apically positioned implants adjacent to a tooth)
• Patients with prostheses that prevent access for implant debridement with chitosan brushes or titanium curettes
• Implants with an overdenture superstructure
• Implants to be explanted
• Patients with ASA score ≥ 3
• Patients reporting reactions or adverse events to chitosan, stainless steel, adhesives, or polypropylene
• Clinically mobile implants
• Recently placed and non-osseointegrated implants
• Around major nerves and blood vessels, if there is a risk of structural damage

Sponsors & Collaborators

• Hacettepe University: lead

Study Sites (1)

Hacettepe University

Ankara, 06100, Turkey (Türkiye)

RECRUITING

MeSH Terms

Conditions

Peri-Implantitis

Condition Hierarchy (Ancestors)

Periodontal Diseases; Mouth Diseases; Stomatognathic Diseases

Central Study Contacts

Buket Acar, PHD

CONTACT

+90 312 305 2217; dtbuketacar@gmail.com

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Study Record Dates

• First Submitted: February 11, 2025
• First Posted: February 17, 2025
• Study Start: April 10, 2025
• Primary Completion (Estimated): December 1, 2026
• Study Completion (Estimated): June 1, 2027
• Last Updated: September 15, 2025

Record last verified: 2025-09

Locations

TU (1)