NCT00818376

Brief Summary

The presence of plaque on tooth surfaces as a predictor of chlorhexidine side effects has not been evaluated especially because most studies utilized a previous disruption of biofilms in all dental surfaces before the beginning of rinsing. The purpose of this study is to compare staining and calculus formation after 0.12 percent chlorhexidine between previously plaque-free and plaque-covered surfaces by means of an experimental gingivitis model.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Jun 2006

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2006

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2006

Completed
2.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2008

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

January 6, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 7, 2009

Completed
Last Updated

January 30, 2009

Status Verified

January 1, 2009

Enrollment Period

5 months

First QC Date

January 6, 2009

Last Update Submit

January 29, 2009

Conditions

Keywords

Chlorhexidineadverse effectsstainingdental calculusdental plaque

Outcome Measures

Primary Outcomes (1)

  • Dental Staining

    21 days

Secondary Outcomes (1)

  • Dental calculus formation

    21 days

Interventions

Two randomized quadrants will be cleaned with a prophylaxis to disrupt dental biofilm presence.

Eligibility Criteria

Age18 Years - 35 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Age between 18-35 years
  • Male
  • No relevant medical conditions that could interfere on the periodontal health
  • Probing pocket depth \< 3 mm and clinical attachment loss \< 2mm at all sites
  • Willingness to comply

You may not qualify if:

  • Antibiotic and/or anti-inflammatory therapy within 3 months prior to baseline examination
  • Oral mucosal lesions
  • Smokers
  • Need for antibiotic premedication
  • History of hypersensitivity to chlorhexidine
  • Any device that could act as plaque retentive factor (e.g., carious lesions, inadequate restorations, dental implants, orthodontic appliances, fixed or removable prostheses)
  • Individuals that wanted to give up the study
  • Any acute process like allergic reaction to the product or gingival abcess
  • Necessity to use of any antibiotic or anti-inflammatory
  • Use of any other rinsing product farther the chlorhexidine's rinses
  • Individuals who did any mechanical biofilm control

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Zanatta FB, Antoniazzi RP, Rosing CK. Staining and calculus formation after 0.12% chlorhexidine rinses in plaque-free and plaque covered surfaces: a randomized trial. J Appl Oral Sci. 2010 Sep-Oct;18(5):515-21. doi: 10.1590/s1678-77572010000500015.

MeSH Terms

Conditions

Dental CalculusTooth DiscolorationDental Plaque

Interventions

Dental Prophylaxis

Condition Hierarchy (Ancestors)

Dental DepositsTooth DiseasesStomatognathic DiseasesCalculiPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

PeriodonticsDentistryPreventive Dentistry

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER

Study Record Dates

First Submitted

January 6, 2009

First Posted

January 7, 2009

Study Start

June 1, 2006

Primary Completion

November 1, 2006

Study Completion

December 1, 2008

Last Updated

January 30, 2009

Record last verified: 2009-01