Supporting Oral Self-care of Patients With Periodontitis Through Motivational Interview

Study Overview
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Brief Summary
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The aim of this study was to evaluate the potential additive effect of Motivational Interviewing (MI) on gingival health and self-care. Our hypothesis was that the Motivational Interviewing would result in improved gingival health and self-care compared to prevailing patient education.

Detailed Description
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The study is designed as a randomized, double-blinded, controlled clinical trial of 6-month duration involving patients with diagnosed periodontitis. The subjects are randomized to intervention or control group using the randomizing list. For both groups, necessary non-surgical periodontal treatments will be done. In the intervention group The MI-intervention is used as a part of normal dental hygienist appointment and if patient need more than one visit, MI was used in every visit. In control group prevailing, more professional-centered education is used. Dental hygienist define patients educational needs and give direct instructions how to change behaviour and self-care.

Official Title
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Supporting Oral Self-care of Patients With Periodontitis Through Brief Motivational Interview

Conditions
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Periodontal Diseases, Patient Education, Self-Care

Intervention / Treatment
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* Behavioral: Motivational interview vs. prevailing education


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adults, over 18-year-old CPI (Community periodontal index) 3 in at least two sextants and Diagnosed parodontitis The previous treatment period should have been more than one year ago. Exclusion Criteria: pregnancy (or the planning of pregnancy) immunosuppressive illness or a medication, hepatitis, HIV, MRSA (methicillin-resistant Staphylococcus aureus) a bleeding illness or a anticoagulant (excluding primalan 100-200 mg / a day) the labile diabetes cytotoxic treatment a need for the antibiotic prophylaxis.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Motivational interview<br>The MI-intervention is used as a part of normal dental hygienist appointment. Dental hygienists are trained to focus on patients view of their oral health, self-care skills and need for oral-health related behaviour change. They are supposed to use open-ended questions, reflective listening and reinforcing with patients. Dental hygienist support patients in decision making although patients were addressed as an active agent. | Behavioral: Motivational interview vs. prevailing education<br>* In intervention group dental hygienists are trained to focus on patients view of their oral health, self-care skills and need for oral-health related behaviour change. They are supposed to use open-ended questions, reflective listening and reinforcing with patients. In control croup dental hygienist defined patients educational needs and gave direct instructions how to change behaviour and self-care.<br>|
| Active Comparator: Prevailing education<br>In control group prevailing, more professional-centered education is used. Dental hygienist define patients educational needs and give direct instructions how to change behaviour and self-care. | Behavioral: Motivational interview vs. prevailing education<br>* In intervention group dental hygienists are trained to focus on patients view of their oral health, self-care skills and need for oral-health related behaviour change. They are supposed to use open-ended questions, reflective listening and reinforcing with patients. In control croup dental hygienist defined patients educational needs and gave direct instructions how to change behaviour and self-care.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Bleeding on probing (BoP) | Change in BoP is measured three times during the study. In the baseline and in the tree- and six-months follow-up. Bop is recorded60 seconds after the pocket probing and assessed as present (1) or absent (0) on four surfaces. | Up to 6 month | 
| Pocket probing depth (PD) | Change in PD is measured three times during the study. In the baseline and in the tree- and six-months follow-up. PD is measured at mesial, distal, lingual and buccal surfaces. | Up to 6 month | 
| Clinical Attachment Level (CAL) | Change in CAL is measured three times during the study. In the baseline and in the tree- and six-months follow-up. CAL is measured if cemento-enamel junction is uncovered or if there is 6 mm deep or deeper gingival pocket. | Up to 6 month |