The Effects of Two Volitional Interventions to Improve Oral Health Behaviour Among Iranian Adolescents

Study Overview
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Brief Summary
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the present study had two main aims. First, due to the current underconsumption of dental brush adolescents, the investigators should apply a volitional intervention to increase oral health behvaiour in adolescents. Second, the investigators aim to compare the effectiveness of action planning intervention and implementation intention will improve oral health behavior in adolescents.

Detailed Description
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This is a study to explore the impact of two volitional interventions on brushing intentions , behaviors and clinical characteristics among a sample of adolescent students.

Official Title
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The Effects of Two Volitional Interventions to Improve Oral Health Behaviour Among Iranian Adolescents

Conditions
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Oral Health Behavior Change

Intervention / Treatment
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* Behavioral: Implementation intention
* Behavioral: Action planning
* Behavioral: active control group


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 14 Years to 19 Years Ability to understand Persian language Adolescents attending high schools in Qazvin Exclusion Criteria: participate in any kind of oral health education and promotion programs undergoing orthodontic treatment

Ages Eligible for Study
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Minimum Age: 14 Years
Maximum Age: 19 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

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: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Implementation intention<br>It may be helpful for you to plan when and where you will brush your teeth each day over the next month. Please write below when, where, and after what activity you will brush your teeth (e.g., at 8.00 a.m. and 9.00 p.m. in the bathroom after eating breakfast/dinner). Because you should brush your teeth twice a day, please make two plans. If it is _____ (WHEN) at or in _______ (WHERE) before/after ______ (ACTIVITY), then I will brush my teeth! If it is _____ (WHEN) at or in _______ (WHERE) before/after ______ (ACTIVITY), then I will brush my teeth! | Behavioral: Implementation intention<br>* It may be helpful for you to plan when and where you will brush your teeth each day over the next month. Please write below when, where, and after what activity you will brush your teeth (e.g., at 8.00 a.m. and 9.00 p.m. in the bathroom after eating breakfast/dinner). Because you should brush your teeth twice a day, please make two plans. If it is _____ (WHEN) at or in _______ (WHERE) before/after ______ (ACTIVITY), then I will brush my teeth! If it is _____ (WHEN) at or in _______ (WHERE) before/after ______ (ACTIVITY), then I will brush my teeth!<br>|
| Experimental: Action planning<br>It may be helpful for you to plan when and where you will brush your teeth each day over the next month. Please write below when, where, and after what activity you will brush your teeth (e.g., at 8.00 a.m. and 9.00 p.m. in the bathroom after eating breakfast/dinner). Because you should brush your teeth twice a day, please make two plans. I will brush my teeth at ___(WHEN) at or in ____(WHERE) before/after ___ (ACTIVITY). I will brush my teeth at ___(WHEN) at or in ____(WHERE) before/after ___ (ACTIVITY). | Behavioral: Action planning<br>* It may be helpful for you to plan when and where you will brush your teeth each day over the next month. Please write below when, where, and after what activity you will brush your teeth (e.g., at 8.00 a.m. and 9.00 p.m. in the bathroom after eating breakfast/dinner). Because you should brush your teeth twice a day, please make two plans. I will brush my teeth at ___(WHEN) at or in ____(WHERE) before/after ___ (ACTIVITY). I will brush my teeth at ___(WHEN) at or in ____(WHERE) before/after ___ (ACTIVITY).<br>|
| Active Comparator: active control group<br>Participants in the active control group will receive an educational pamphlet containing what it is dental brushing, why it is done, and how it is done. | Behavioral: active control group<br>* Participants in the active control group will receive an educational pamphlet containing what it is dental brushing, why it is done, and how it is done.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| changes in frequencies of dental brushing |  | changes from baseline, one month after the intervention and six months follow-up | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| changes in psychological predictors of dental brushing (intention ,perceived behavioural control and Self-monitoring) |  | changes from baseline, one month after the intervention and six months follow-up | 
| Changes in Community Periodontal Index (CPI) |  | changes from baseline, one month after the intervention and six months follow-up | 
| Changes in Turesky Modification of the Quigley-Hein Plaque Index |  | changes from baseline, one month after the intervention and six months follow-up | 
| Oral health related quality of life |  | changes from baseline and six months follow-up | 
| The frequency of the use of planning | The number of planning strategies is used by the adolescents before, at baseline, one month after the intervention and six months follow-up | changes from baseline, one month after the intervention and six months follow-up | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Action planning, Implementation intention