Efficacy of 0.12% Chlorhexidine Gluconate for Peri-implant Mucositis

November 12, 2015 updated by: Karyna de Melo Menezes, Universidade Federal do Rio Grande do Norte

Efficacy of 0.12% Chlorhexidine Gluconate for Non-surgical Treatment of Peri-implant Mucositis

The purpose of this study is to analyze the efficacy of 0.12% chlorhexidine gluconate as a chemical adjuvant for the treatment of peri-implant mucositis, in a non-surgical treatment protocol with a six-month follow-up.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Determination of the sample size was based on the sample calculation for clinical trials, estimating a 50% success rate for the control group and 100% for the test group, which was then averaged for the two groups. With a standardized difference and power test of 85%, a total of 28 subjects per group were obtained.

Periapical radiographic examinations were performed before the collection of data to confirm the absence of bone loss, and threads exposition of the implants. The following clinical parameters were evaluated in both test and control groups; visible plaque index (VPI) and gingival bleeding index (GBI) were obtained for full mouth (IPV and ISG) and for each implant (VPI implant; GBI implant). For statistical purposes, percentages of faces with biofilm and marginal bleeding at teeth and implants were calculated. These parameters were evaluated at baseline and at one, three and six months post-therapy.

Keratinized mucosa width (KM), probing depth (PD implant), and bleeding on probing (BOP implant) were collected for all implants with a North Carolina periodontal probe at six sites. After data collection, an arithmetic averages of the sites with bleeding on probing, probing depths, and keratinized mucosa were calculated at baseline, three and six months. The peri-implant biotype for each implant was rated as thin or thick, according to probe transparency during probing depth.

Clinical parameters were collected by two operators, calibrated by the Kappa test for the keratinized mucosa, peri-implant biotype and probing depth.

After inclusion of the patients, anamnesis and initial examination were performed. The subjects were randomly divided, using a simple draw, in the following two groups: Test - (0.12% chlorhexidine digluconate associated with periodontal basic therapy) and Control - (placebo associated with periodontal basic therapy). Data were analyzed using descriptive and inferential statistics, with nonparametric tests, through a Statistical Package Social Sciences software (SPSS), version 17.0 (free version). The Friedman test was used for intragroup analysis and if any significant differences were observed, the Wilcoxon post-test was performed. Additionally, Mann-Whitney test was used for intergroup analysis. Chi-Square test was used to evaluate probing depth and bleeding on probing, according to the independent variables of interest: age, sex, treatment group, keratinized mucosa, peri-implant biotype, median VPI implant and GBI implant. Spearman correlation was also used to correlate probing depth and bleeding on probing after six months of follow-up. The implant was considered the unit of analysis and a value of p<0.05 was used to represent a statistically significant difference.

Study Type

Interventional

Enrollment (Actual)

37

Phase

  • Phase 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Systemically-healthy partially edentulous patients rehabilitated with functional dental implants and prostheses for at least 1 year;
  • Patients had been diagnosed with peri-implant mucositis, probing depth up to 5 mm, bleeding on probing and no radiographic evidence of bone loss beyond the first two threads of the implant.

Exclusion Criteria:

  • Non-smokers and not in maintenance therapy;
  • Periodontal treatment during the last six months;
  • Have not used antimicrobial (systemic or topical), anti-inflammatory or immunosuppressive drugs during the six months preceding the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: chlorhexidine gluconate
15 ml of solution every 12 hours, twice a day, 30 minutes after brushing, for 14 days
Drug: Chlorhexidine gluconate
Other Names:
  • Chlorhexidine
Placebo Comparator: placebo
15 ml of solution every 12 hours, twice a day, 30 minutes after brushing, for 14 days
Drug: placebo
Solution chemical manufactured to mimic 0.12% chlorhexidine mouthwash
Other Names:
  • placebo solution

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Bleeding on probing
Time Frame: baseline
baseline
Bleeding on probing
Time Frame: three months
three months
Bleeding on probing
Time Frame: six months
six months

Secondary Outcome Measures

Outcome Measure
Time Frame
Probing depth
Time Frame: baseline and at three and six months
baseline and at three and six months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Universidade Federal do Rio Grande do Norte

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2012

Primary Completion (Actual)

December 1, 2013

Study Completion (Actual)

December 1, 2013

Study Registration Dates

First Submitted

October 7, 2015

First Submitted That Met QC Criteria

November 12, 2015

First Posted (Estimate)

November 16, 2015

Study Record Updates

Last Update Posted (Estimate)

November 16, 2015

Last Update Submitted That Met QC Criteria

November 12, 2015

Last Verified

November 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UFRN

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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