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Effect of Supragingival Control Versus Supra- and Subgingival Control in the Periodontal Health During the Maintenance

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ClinicalTrials.gov Identifier: NCT01598155
Recruitment Status : Unknown
Verified December 2014 by Sabrina Carvalho Gomes, Federal University of Rio Grande do Sul.
Recruitment status was:  Active, not recruiting
First Posted : May 15, 2012
Last Update Posted : December 9, 2014
Sponsor:
Information provided by (Responsible Party):
Sabrina Carvalho Gomes, Federal University of Rio Grande do Sul

Brief Summary:

Seventy patients will be previously treated for moderate-to-severe periodontitis according to their individual needs. Thirty days after completion of periodontal treatment, these patients will be randomized to one of the following groups of periodic preventive maintenance (PPM): G1 - performed only control supragingival; G2 - performed supra and subgingival control (when necessary).

The maintenance consultations will be scheduled every 3 months for 24 months. The hypothesis is that the effect of the supragingival control (conducted over 24 months) will be similar to the effect of the supra- and subgingival control combined, above the restoration and progression of periodontitis.


Condition or disease Intervention/treatment
Periodontitis Procedure: Group 1 - Supragingival biofilm control Procedure: Group 2 - Supra- and subgingival biofilm control

Detailed Description:
This randomized clinical trial, single-blind, aims to compare the effect of the supragingival biofilm control with the effect of supra- and subgingival biofilm control, performed by the patient-professional binomial, in periodontal patients treated, above the restoration and progression of periodontitis during the preventive periodic maintenance (PPM). Seventy patients with moderate-to-severe periodontitis, aged from 35 years, will be included. Participants will be periodontally treated according to their needs. After 30 days of the end of treatment, participants will be randomized (stratified for smoking) in two groups: Group 1 (G1)- Supragingival biofilm control; Group 2 (G2)- Supra and subgingival biofilm control. MPP consultation will take place every 3 months, for 24 months, in which the G1 will only receive procedures of supragingival biofilm control, and G2 will receive, beyond the supragingival control, subgingival interventions.

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 70 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Investigator)
Primary Purpose: Treatment
Official Title: The Effect of Supragingival Biofilm Control, and the Combination of Supra and Subgingival Biofilm Control in Periodontal Health of Patients Participating in a Periodontal Preventive Maintenance Program - A Randomized Clinical Trial.
Study Start Date : May 2012
Estimated Primary Completion Date : January 2016
Estimated Study Completion Date : January 2016

Arm Intervention/treatment
Experimental: Supragingival biofilm control Procedure: Group 1 - Supragingival biofilm control

30 days after the end of periodontal treatment, participants assigned to this group, will receive every 3 months (over 24 months):

  • Scaling, planning and polishing coronary surface;
  • Education and motivation for oral hygiene and daily supragingival biofilm control by the patient.
Other Name: G1
Experimental: Supra- and subgingival biofilm control Procedure: Group 2 - Supra- and subgingival biofilm control

30 days after the end of periodontal treatment, participants assigned to this group, will receive every 3 months (over 24 months):

  • Scaling, planning and polishing of coronary surface;
  • Education and motivation for oral hygiene and daily supragingival biofilm control by the patient;
  • Subgingival scaling and root planning in sites with persistent bleeding on probing and probing depth unchanged.
Other Name: G2



Primary Outcome Measures :
  1. Mean Attachment Loss (AL) [ Time Frame: 24 months ]
    AL: defined as the distance from the CEJ to the bottom of the pocket/sulcus.


Secondary Outcome Measures :
  1. Periodontal Probing Depth (PPD) [ Time Frame: 24 months ]
    PPD: defined as the distance from the free gingival margin to the bottom of the pocket/sulcus.

  2. Microbiological markers [ Time Frame: 24 months ]
    To assess the prevalence of P gingivalis, P micra and D pneumosintis on the subgingival plaque samples



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Ages Eligible for Study:   35 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • age from 35 years;
  • present at least 12 teeth in the mouth;
  • patients diagnosed with moderate-to-severe periodontitis according to the criteria of the AAP (1999):

    • to present ≥ 2 interproximal sites with AL ≥ 6 mm AND ≥1 interproximal site with PD ≥ 5 mm; or
    • to present ≥ 2 interproximal sites with AL ≥ 3mm OR ≥ 2 interproximal sites with PD ≥ 5 mm (in different teeth).

Exclusion Criteria:

  • presence of systemic conditions unfavorable to periodontal treatment (diabetes, cardiovascular changes with antimicrobial prophylaxis indicated);
  • positive history of periodontal treatment and maintenance in the 12 months preceding the study;
  • positive history of using anti-inflammatory drugs and antibiotics in the 3 months prior to initial consultation;
  • patients in use of fixed orthodontic appliance;
  • pregnant patients.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01598155


Locations
Brazil
School of Dentistry, Federal University of Rio Grande do Sul
Porto Alegre, RS, Brazil, 90035-003
Sponsors and Collaborators
Federal University of Rio Grande do Sul
Investigators
Principal Investigator: Sabrina Carvalho Gomes, DDS, PhD Federal University of Rio Grande do Sul

Responsible Party: Sabrina Carvalho Gomes, DDS, PhD, Federal University of Rio Grande do Sul
ClinicalTrials.gov Identifier: NCT01598155     History of Changes
Other Study ID Numbers: SGomes 01
First Posted: May 15, 2012    Key Record Dates
Last Update Posted: December 9, 2014
Last Verified: December 2014

Keywords provided by Sabrina Carvalho Gomes, Federal University of Rio Grande do Sul:
dental biofilm
periodontitis
maintenance
randomized clinical trial
biomarkers
bacterias
gingival crevicular fluid

Additional relevant MeSH terms:
Periodontitis
Periodontal Diseases
Mouth Diseases
Stomatognathic Diseases