An interventional study of Motivational Interview Group (MIG) and Conventional treatment group (CTG) in Periodontitis, Periodontal Diseases and Motivational Interviewing, sponsored by Universidade Federal de Santa Maria. Active, not recruiting at 1 site in Brazil. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-03-27.
Sponsored by Universidade Federal de Santa Maria · Not applicable, Interventional, and Treatment
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Among 48 studies in Periodontitis with a site in Brazil — 7 open to participants now, 12 under way, 1 of them phase 3. Periodontitis · Brazil.
Among the 48 studies in Periodontitis with a site in Brazil, this one is the 15th largest by planned enrollment of the 45 interventional ones that give a count, is one of 8 that started in 2023, is one of 27 with no phase, reaches primary completion later than 2 of the 11 other live ones, and was the 30th registered.
1,232 studies on the registry are indexed under Periodontitis; 295 are open to participants now.
Browse Periodontitis studies →7 of the 48 studies in Periodontitis with a site in Brazil are open now. Recruiting first, the newest first:
University of Sao Paulo · Sites in Brazil
Ages 18–70
University of Sao Paulo · Sites in Brazil
Ages 18+
University of Sao Paulo · Sites in Brazil
Ages 18–70
Universidade Federal Fluminense · Sites in Brazil
Ages 18–70 · Healthy volunteers
University of Campinas, Brazil · Sites in Brazil
Ages 18+
A study can be open while its sites in Brazil have not opened yet or have stopped. Only those recruiting at a site in Brazil →
Of the 158 Periodontitis studies recruiting now, 78 (49%) set no upper age limit and 60 (38%) stop at 75 or younger; 12 take children under 18; 76 take healthy volunteers.
This study: 18 Years and older · all sexes · no healthy volunteers.
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48 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 3 · Phase 2 2 · Phase 3 5 · Phase 4 9
First in 2002; this study’s year is marked. 8 started in 2023.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 72 is above the median of 44 across 847 interventional studies indexed under Periodontitis.
Median enrollment 56 across the 45 interventional studies, 67 across the 2 observational. Of the 27 that completed or were terminated, 0 (0%) have results posted.
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1 of 48 have an industry lead sponsor. The 10 most frequent:
Universidade Federal de Santa Maria is the lead sponsor of 37 studies on the registry; 2 are open to participants now.
Universidade Federal de Santa Maria has 2 studies filed under Periodontitis — fewer than ten, so there is no comparison to draw.
1 of the studies in Periodontitis with a site in Brazil that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT07463859University of Sao PauloEffects of Periodontal Treatment Associated With Antimicrobial Photodynamic Therapy on Halitosis in Patients With Diabetes Mellitus | 2027-01-31 |
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Among the 48 studies in Periodontitis with a site in Brazil, from their registry updates:
Nothing recorded among them since 2026-09-25.
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The best way for dental professionals act using dialogue methods and individual approaches in daily clinical practice to change behavioral is still inconclusive. Thus, the objective will be evaluate the effect of using motivational interviewing as part of the treatment of periodontitis in order to increase the adherence of adults to adequate oral health behavior.
Patient-related approaches may show better results in treatment of periodontal diseases. The best way for the dental surgeon to act using these methods is still inconclusive. The aim of this study is to evaluate the effectiveness of using motivational interviewing as part of the treatment of periodontitis in order to increase adult adherence to adequate oral health behavior. A randomized clinical trial, with a sample size of at least 72 subjects, >18 years of age and with at least 18 teeth, will be investigated. Individuals in the test group will receive a collaborative communicative approach, inspired by the motivational interview, while the control group will receive the information/instructions in a conventional approach. The efficacy variables for evaluating the pattern of self-control of periodontal infection will be the bleeding on probing (BoP), gingival index (GI, primary efficacy variable), the plaque index (PI) and patient-based outcomes will be assessed using quality of life questionnaires. Additionally, questionnaires will be applied to obtain sociodemographic, behavioral and self-perception of oral health data. Univariate and multivariate analyzes will be performed and conducted in the Statistical Products Service Solutions software (SPSS, version 25). Thus, it will be possible to assess whether brief oral health education interventions centered on the individual can be used by dental surgeons in order to effectively improve oral hygiene behaviors in adults, obtaining better clinical results and a better quality of life for patients.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants assigned to this arm will complete three to five MI sessions
Behavioral: Motivational Interview Group (MIG)
Participants assigned to this arm will receive the conventional treatment
Procedure: Conventional treatment group (CTG)
Brief MI intervention with the conventional treatment
Conventional treatment
The change in Bleeding on Probing to evaluate the improvement in hygiene behavior
BoP - Dichotomic response after probing the gingival sulcus. High values mean worst condition.
Time frame: baseline, 15 days after supragingival treatment, 30 and 60 days after subgingival treatment and through study completion, an average of 1 year
The change in Plaque Index to evaluate the improvement in hygiene behavior
PI - Each of the 6 sites of the tooth is given a score from 0 to 3. High values mean worst condition.
Time frame: baseline, 15 days after supragingival treatment, 30 and 60 days after subgingival treatment and through study completion, an average of 1 year
The change in Gingival index to evaluate the improvement in hygiene behavior
GI - Each of the 6 sites of the tooth is given a score from 0 to 3. High values mean worst condition.
Time frame: baseline, 15 days after supragingival treatment, 30 and 60 days after subgingival treatment and through study completion, an average of 1 year
Patient satisfaction assessed by the change in Quality of Life questionnaire
Quality of life - % of patients with better scores (lowest values) of quality of life. It can vary from 0 to 56.
Time frame: baseline, 60 days after subgingival treatment and through study completion, an average of 1 year
Patient perception assessed by the change in autoperception of oral health questionnaire
Autoperception of oral health - rate of patients with better condition of oral health perception. The answer options are: Great; Good; Regular; Bad; Terrible. 0-4 (lower scores mean better self-perception).
Time frame: baseline, 60 days after subgingival treatment and through study completion, an average of 1 year
Oral hygiene-related self-efficacy assessed by the oral hygiene-related selfefficacy (OHSE) questionnaire
Oral hygiene-related self-efficacy: % of patients with higher scores of self-efficacy. It ranges from 19 to 76, higher scores mean better self-efficacy.
Time frame: 60 days after subgingival treatment and six months later
Plan to share: No
No publications or documents are linked to this record.
Ran from May 2023 to primary completion in Sep 2024, 15 months.
Of 481 non-industry interventional studies with no phase under Periodontitis, half reached primary completion within 15 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 31. This study's 15 months is close to that.
Counting every sponsor, half of 495 studies reached it within 15 months; a quarter within 8 and three quarters within 31.
How these figures are worked out, and which studies are left out of them.
This study is active, not recruiting, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.
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Universidade Federal de Santa Maria