Rectangular Collimation in Pediatric Dentistry

NCT ID: NCT06877117

Last Updated: 2025-03-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Clinical Phase

NA

Total Enrollment

6473 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-31

Study Completion Date

2025-05-31

Brief Summary

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This project aims to investigate whether simple behavioural interventions, such as pictorial framing and traffic-light-color-coding, can positively influence pediatric dentists' decision-making in adopting rectangular collimation over round collimation for dental radiographs taken in clinical practice.

Detailed Description

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1. Introduction Dental radiographs are essential in diagnosing oral conditions in pediatric patients. Despite the availability of rectangular collimation as a recommended radiation safety measure, many pediatric dentists continue to use round collimation, which results in unnecessary radiation exposure. This study explores whether nudging strategies-such as pictorial framing and traffic-light color coding-can influence pediatric dentists' decision-making to encourage the adoption of rectangular collimation.
2. Research Objectives

This study aims to:

Educate pediatric dentists on the benefits of rectangular collimation over round collimation.

Assess current collimation practices among pediatric dentists. Evaluate whether behavioral nudging strategies influence pediatric dentists' willingness to adopt rectangular collimation.
3. Study Hypothesis Null Hypothesis: Nudging strategies (pictorial framing and traffic-light color coding) have no impact on pediatric dentists' willingness to adopt rectangular collimation.

Alternative Hypothesis: The implementation of nudging strategies positively influences pediatric dentists to use rectangular collimation.
4. Methodology Study Design

* A randomized, quantitative survey distributed online.
* Three study groups:

1\. Control Group (No nudging intervention) 2. Pictorial Framing Group (Visual aids illustrating collimation benefits) 3. Traffic-Light Color Coding Group (Decision cues using color-based risk indicators)

Participants Target Population: Pediatric dentists who are active members of the American Academy of Pediatric Dentistry (AAPD) in the U.S. and Canada.

Sample Size: As a one of its kind research project, the minimum for comparison is 30 participants in each sample group.

Data Collection A self-administered online survey conducted via REDCap. Survey distribution follows randomization of participants into the three groups.

Three e-mail invitations sent at two-week intervals over a six-week period.

Outcome Measures Primary Outcome: Change in willingness to adopt rectangular collimation. Secondary Outcome: Differences in responses across study groups.

Statistical Analysis Descriptive and comparative statistics using SPSS. Statistical significance set at p \< 0.05.

5\. Ethical Considerations Study approved by the University of Toronto Health Sciences Research Ethics Board.

Participants' responses are anonymous, and data security measures are in place.

6\. Expected Impact This study will provide valuable insights into behavioral interventions for pediatric dentistry. If effective, nudging strategies could be incorporated into clinical guidelines to enhance radiation safety practices.

Conditions

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Behaviour Change Nudging Rectangular Colllimation in Pediatric Dentistry

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

SINGLE

Participants

Study Groups

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Control

Control Arm receives only didactic information and no nudges

Group Type NO_INTERVENTION

No interventions assigned to this group

Pictorial Framing

Written information is supplemented with pictorial nudges.

Group Type EXPERIMENTAL

Pictorial Framing

Intervention Type BEHAVIORAL

Visual aids illustrating collimation benefits

Traffic Light Color Coding

Written information is supplemented with traffic light colour coding nudges.

Group Type EXPERIMENTAL

Traffic Light Color Coding Framing

Intervention Type BEHAVIORAL

Decision cues using color-based risk indicators

Interventions

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Pictorial Framing

Visual aids illustrating collimation benefits

Intervention Type BEHAVIORAL

Traffic Light Color Coding Framing

Decision cues using color-based risk indicators

Intervention Type BEHAVIORAL

Other Intervention Names

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Behavioural Prompt Pictorial Nudging Framing Nudges Framing behavioral prompt

Eligibility Criteria

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Inclusion Criteria

* active members of American Academy of Pediatric Dentistry

Exclusion Criteria

* pre and post doctoral students and affiliated members
Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Toronto

OTHER

Sponsor Role lead

Responsible Party

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Varsha Lal

Principle Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hashim Nainar, Dentist

Role: STUDY_DIRECTOR

University of Toronto

Locations

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Faculty of Dentistry, University of Toronto

Toronto, Ontario, Canada

Site Status

Countries

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Canada

References

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Oakes AH, Patel MS. A nudge towards increased experimentation to more rapidly improve healthcare. BMJ Qual Saf. 2020 Mar;29(3):179-181. doi: 10.1136/bmjqs-2019-009948. Epub 2019 Nov 19. No abstract available.

Reference Type BACKGROUND
PMID: 31744847 (View on PubMed)

Schubbe D, Scalia P, Yen RW, Saunders CH, Cohen S, Elwyn G, van den Muijsenbergh M, Durand MA. Using pictures to convey health information: A systematic review and meta-analysis of the effects on patient and consumer health behaviors and outcomes. Patient Educ Couns. 2020 Oct;103(10):1935-1960. doi: 10.1016/j.pec.2020.04.010. Epub 2020 May 11.

Reference Type BACKGROUND
PMID: 32466864 (View on PubMed)

Other Identifiers

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47738

Identifier Type: -

Identifier Source: org_study_id

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