Improving Show Rates in Dental Care Settings Serving Underserved Populations

April 13, 2026 updated by: University of Wisconsin, Madison

No-Show Prevention Practices in Dental Care Settings Serving Underserved Populations

The goal of this study is to compare different no-show interventions in dental clinics serving underserved populations. The main question it seeks to answer is

  • How do different no-show intervention methods compare in reducing no-shows?

Participants will be asked to

  • Implement different interventions
  • Report a limited set of data to researchers

Study Overview

Detailed Description

Persistent no-show rates contribute to the oral health disparities and inadequate access to dental care that disproportionately affect underserved populations. The proposed research will test the impact of three different strategies on improving show rates using a full factorial design. Specifically, the study is designed as a 2×2×2 factorial cluster-randomized trial of reminder messaging, motivation-enhanced communication, and walk-in visit. The unit of intervention and randomization will be dental clinic sites (clusters). Forty clinics will be randomized between eight possible combinations of receiving or not receiving the three study interventions, with five clinics receiving each intervention. Findings from this study seek to provide an evidence-based approach to reducing no-shows and increasing access to dental care for underserved populations.

Study Type

Interventional

Enrollment (Estimated)

48

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Wisconsin
      • Madison, Wisconsin, United States, 53705
        • University of Wisconsin - Madison

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Sites must be:

  • Serve at least a 51 percent self-pay and Medicaid patients
  • Be willing to provide limited data sets of clinic data to the research team
  • Be willing to undertake and support and organizational improvement project to improve show rates

Staff must be:

  • A paid staff member at a participating clinic
  • Be able and willing to provide written or verbal consent

Exclusion Criteria:

  • No exclusion criteria for clinics or staff

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Control
Active Comparator: Reminder Messages
Dental clinic staff will use scripts to contact patients 24 and 48 hours before appointments. These scripts will guide staff in confirming the patient will appear for their appointment.
Active Comparator: Walk-in Visits
When contacting patients to schedule an appointment (by phone, email, text, or other methods), dental clinic staff will notify patients of times during which patients can walk-in for a dental visit, if convenient for them; otherwise, a regular appointment will be arranged. Scheduled appointments will continue to be available in addition to the walk-in hours.
Active Comparator: Motivation-enhanced Communication
Participating clinic site staff will be trained in motivation-enhanced communication techniques using the guide for dental clinic sites and coaching. Topics to be included in the motivation-enhanced communication training are a) to determine what patients hope to gain from their dental care, steps needed to succeed, how the agency and client will work together to attain the goals, and b) to identify patient barriers to attending their visit (e.g., transportation, payment, do not understand need for visit, etc.), and what the agency and patient will do to overcome those barriers. Staff will be instructed to use these techniques with patients at every contact about an upcoming appointment.
Active Comparator: Reminder Messages & Walk-in visits
Dental clinic staff will use scripts to contact patients 24 and 48 hours before appointments. These scripts will guide staff in confirming the patient will appear for their appointment.
When contacting patients to schedule an appointment (by phone, email, text, or other methods), dental clinic staff will notify patients of times during which patients can walk-in for a dental visit, if convenient for them; otherwise, a regular appointment will be arranged. Scheduled appointments will continue to be available in addition to the walk-in hours.
Active Comparator: Reminder Messages & Motivation-enhanced Communication
Dental clinic staff will use scripts to contact patients 24 and 48 hours before appointments. These scripts will guide staff in confirming the patient will appear for their appointment.
Participating clinic site staff will be trained in motivation-enhanced communication techniques using the guide for dental clinic sites and coaching. Topics to be included in the motivation-enhanced communication training are a) to determine what patients hope to gain from their dental care, steps needed to succeed, how the agency and client will work together to attain the goals, and b) to identify patient barriers to attending their visit (e.g., transportation, payment, do not understand need for visit, etc.), and what the agency and patient will do to overcome those barriers. Staff will be instructed to use these techniques with patients at every contact about an upcoming appointment.
Active Comparator: Walk-in visits & Motivation-enhanced Communication
When contacting patients to schedule an appointment (by phone, email, text, or other methods), dental clinic staff will notify patients of times during which patients can walk-in for a dental visit, if convenient for them; otherwise, a regular appointment will be arranged. Scheduled appointments will continue to be available in addition to the walk-in hours.
Participating clinic site staff will be trained in motivation-enhanced communication techniques using the guide for dental clinic sites and coaching. Topics to be included in the motivation-enhanced communication training are a) to determine what patients hope to gain from their dental care, steps needed to succeed, how the agency and client will work together to attain the goals, and b) to identify patient barriers to attending their visit (e.g., transportation, payment, do not understand need for visit, etc.), and what the agency and patient will do to overcome those barriers. Staff will be instructed to use these techniques with patients at every contact about an upcoming appointment.
Active Comparator: Reminder Messages, Walk-in visits, & Motivation-enhanced Communication
Dental clinic staff will use scripts to contact patients 24 and 48 hours before appointments. These scripts will guide staff in confirming the patient will appear for their appointment.
When contacting patients to schedule an appointment (by phone, email, text, or other methods), dental clinic staff will notify patients of times during which patients can walk-in for a dental visit, if convenient for them; otherwise, a regular appointment will be arranged. Scheduled appointments will continue to be available in addition to the walk-in hours.
Participating clinic site staff will be trained in motivation-enhanced communication techniques using the guide for dental clinic sites and coaching. Topics to be included in the motivation-enhanced communication training are a) to determine what patients hope to gain from their dental care, steps needed to succeed, how the agency and client will work together to attain the goals, and b) to identify patient barriers to attending their visit (e.g., transportation, payment, do not understand need for visit, etc.), and what the agency and patient will do to overcome those barriers. Staff will be instructed to use these techniques with patients at every contact about an upcoming appointment.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in proportion of scheduled appointments for which the patient attends, pre-to-post intervention
Time Frame: 6 months pre-intervention to 12 months post-intervention

To test the efficacy of motivation-enhanced communication, reminder messaging, and walk-in visits as compared to treatment as usual For each of the three interventions, the pre-to-post intervention change in show rates.

Show rate is defined as the proportion of scheduled appointments for which the patient attends their scheduled clinic appointment. Appointments cancelled or rescheduled more than 24 hours in advance are not included in the calculation.

Outcome will be measured by data exported from the clinical electronic health records monthly.

6 months pre-intervention to 12 months post-intervention

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Organizational Change Manager (OCM) Score
Time Frame: Survey will be administered at 3 months

To examine whether Organizational Readiness for Change moderates the efficacy of the targeted evidence-based practices.

Organizational readiness for change will be assessed by a validated 16-item index called the Organizational Change Manager (OCM) For each clinic site, a group of 5 people that includes clinicians, dental hygienists, manager, and scheduler each team member will provide their own OCM responses.

Outcome will be measured by combined responses to Organizational Change Manager survey tool. Total possible ranges of scores will be 0-104, with a higher score indicating increased readiness. The responses to the Organizational Change Manager survey from each clinic staff respondent will be added and an average of those scores will be calculated.

Survey will be administered at 3 months
Statistical Comparison of Interventions for Effectiveness Analysis
Time Frame: 6 months pre-intervention to 12 months post-intervention

Evaluate the efficacy of motivation-enhanced communication, reminder messaging, and walk-in visits compared to each other.

Comparative effectiveness analyses: Evaluate the efficacy of motivation-enhanced communication, reminder messaging, and walk-in visits compared to each other For each of the interventions, the difference in the pre-to-post intervention change in show rates in clinics receiving the different interventions Outcomes will be measured by data exported from the clinical electronic health records monthly.

6 months pre-intervention to 12 months post-intervention
Statistical Comparison of Combining Multiple Interventions for Interaction Analysis
Time Frame: 6 months pre-intervention to 12 months post-intervention

Evaluate the synergy of combining multiple interventions. For each pair of interventions, the difference in the pre-to-post intervention change in show rates in clinics receiving both interventions compared to clinics receiving only one of them.

Outcomes will be measured by data exported from the clinical electronic health records monthly.

6 months pre-intervention to 12 months post-intervention

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Todd Molfenter, PhD, University of Wisconsin, Madison
  • Principal Investigator: Chris Okunseri, BDS, MSc, MLS, DDPHRCSE, Marquette University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 4, 2025

Primary Completion (Estimated)

January 31, 2029

Study Completion (Estimated)

January 31, 2029

Study Registration Dates

First Submitted

August 22, 2024

First Submitted That Met QC Criteria

August 29, 2024

First Posted (Actual)

September 3, 2024

Study Record Updates

Last Update Posted (Actual)

April 15, 2026

Last Update Submitted That Met QC Criteria

April 13, 2026

Last Verified

October 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • 2024-1502
  • A195010 (Other Identifier: UW Madison)
  • 2024-1086 (Other Identifier: Previous IRB number)
  • 4UH3DE030531-03 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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