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The Effectiveness of Gain- Versus Loss-framed Health Messages to Improve Oral Health Among Iranian Adolescents

The Effectiveness of Gain- Versus Loss-framed Health Messages to Improve Oral Health Among Iranian Adolescents:A Randomized Controlled Trial

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01421108
Enrollment
372
Registered
2011-08-22
Start date
2011-07-31
Completion date
2012-02-29
Last updated
2012-03-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Behavior

Keywords

oral health, dental brushing, dental flossing

Brief summary

This study explores the effectiveness of message framing, loss-framed vs. gain-framed messages on oral health in Iran.

Detailed description

This is a study to explore the impact of two pamphlets with gain-framed and loss-framed messages on brushing and flossing attitudes, intentions , behaviors and clinical characteristics among a sample of adolescent students.

Interventions

BEHAVIORALFraming (Gain-framed messages)

The adolescents will randomly assign to three groups: gain-framed message and loss- framed message. Each group of adolescents will read the respective pamphlets with the exception of the control group. The gain-framed pamphlet contains six positive messages with three related full-color images(6.1 X 4.5). The gain-framed pamphlet, entitled The Benefits of good oral hygiene, emphasizes the benefits of brushing, and flossing.

BEHAVIORALFraming (Loss-framed messages)

The adolescents will randomly assign to three groups: gain-framed message , loss- framed message and a control group. Each group of adolescents will read the respective pamphlets with the exception of the control group. The loss-framed pamphlet contains six negative messages with three related full-color images (6.1 X 4.5). The loss-framed pamphlet, entitled The disadvantages of poor oral hygiene, emphasizes the costs of not brushing and flossing.

Sponsors

Qazvin University Of Medical Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
14 Years to 19 Years
Healthy volunteers
Yes

Inclusion criteria

* They are not involved in the oral health education * Ability to understand Persian language Adolescents attending high schools in Qazvin

Exclusion criteria

* Does not meet inclusion criteria

Design outcomes

Primary

MeasureTime frame
changes in frequencies of dental brushing and flossingchanges from baseline, two weeks after the intervention and six months follow-up

Secondary

MeasureTime frame
Changes in psychological predictors of dental brushing (attitude, intention).changes from baseline, two weeks after the intervention and six months follow-up
Changes in Community Periodontal Index (CPI)changes from baseline, two weeks after the intervention and six months follow-up
Changes in Turesky Modification of the Quigley-Hein Plaque Indexchanges from baseline, two weeks after the intervention and six months follow-up
Oral health related quality of lifechanges from baseline and six months follow-up

Countries

Iran

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026