ClinicalTrials.gg
CompletedNCT07675564GID-CDMUpdated Jun 30, 2026

Impact of Gender Identity on Dentists' Clinical Decision-Making

An interventional study of Clinical Case Scenario in Clinical Decision-Making, Gender Identity and Transgender Persons, sponsored by Universidade Federal de Santa Maria. Completed at 1 site in Brazil. Per ClinicalTrials.gov, last updated 2026-06-30.

Sponsored by Universidade Federal de Santa Maria · Not applicable, Interventional, and Health services research

From the registry’s dates

  • Registered 2 years 9 months after the study started (first participant enrolled Sep 2023, registered Jun 2026).

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Phase
Not applicable
Study type
Interventional
Enrollment
204
Allocation
Randomized
Sex
All
01

Study summary

This randomized study evaluated whether patient gender identity influences dentists' clinical decision-making. Dentists in southern Brazil were randomly assigned to receive one of two versions of the same hypothetical dental clinical case. The cases were identical except for the patient's gender identity, which was presented as either a transgender woman or a cisgender woman.

Participants selected treatment options for anterior and posterior teeth and completed questionnaires regarding professional characteristics and knowledge about transgender health. The primary objective was to determine whether patient gender identity influenced treatment recommendations. Differences in clinical decision-making between groups were analyzed using regression models.

Read the detailed description

Clinical decision-making in dentistry may be influenced by factors beyond clinical findings, including professional characteristics, personal beliefs, and social perceptions. While disparities related to race and socioeconomic status have been documented in oral health care, little is known about the influence of patient gender identity on dentists' treatment decisions.

This randomized parallel-group study was conducted among practicing dentists in southern Brazil between September 2023 and April 2024. Participants were randomly assigned to evaluate one of two versions of a hypothetical dental clinical case. The clinical information, photographs, complaints, and treatment scenarios were identical in both versions, differing only in the patient's gender identity. In one version, the patient was identified as a transgender woman, while in the other the patient was identified as a cisgender woman.

Participants selected treatment options for an anterior tooth and a posterior tooth and subsequently completed questionnaires addressing sociodemographic characteristics, professional profile, previous experience with transgender patients, and training related to transgender health. The primary outcome was the treatment recommendation provided by the dentist. Recommendations were categorized into conservative and invasive treatment approaches for analysis.

The study aimed to determine whether patient gender identity influences dentists' clinical decision-making and to identify professional characteristics associated with treatment recommendations.

02

Conditions studied

  • Clinical Decision-Making
  • Gender Identity
  • Transgender Persons

Keywords

  • Transgender Persons
  • Gender Identity
  • Clinical Decision-Making.
03

In context

Lead sponsor

Universidade Federal de Santa Maria is the lead sponsor of 37 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Professionally active dentists.
  • Able and willing to provide .
  • Practicing dentistry during the data collection period.

Exclusion criteria

Exclusion Criteria:

  • Dentists not actively practicing during the data collection period.
  • Dentists who participated in the pilot study.
  • Individuals who declined participation or did not provide .
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
204 participants (actual)

Study arms

  • Experimental
    Transgender Woman Case

    Participants evaluated a hypothetical dental clinical case in which the patient was identified as a transgender woman. Clinical information, complaints, and treatment options were identical to the comparison arm.

    Behavioral: Clinical Case Scenario

  • Experimental
    Cisgender Woman Case

    Participants evaluated a hypothetical dental clinical case in which the patient was identified as a cisgender woman. Clinical information, complaints, and treatment options were identical to the comparison arm.

    Behavioral: Clinical Case Scenario

Interventions

  • BehavioralClinical Case Scenario

    Participants were randomly assigned to evaluate one of two versions of a hypothetical dental clinical case. The cases contained identical clinical information, photographs, complaints, and treatment options, differing only in the patient's gender identity. One version described a transgender woman and the other described a cisgender woman. Participants selected treatment recommendations based on the assigned scenario.

06

What researchers measure

Primary outcomes

  1. Treatment Recommendation for Posterior Tooth

    Treatment recommendation for tooth 26 based on the assigned clinical case. Available options included endodontic treatment followed by direct composite restoration, endodontic treatment followed by indirect ceramic restoration, or extraction.

    Time frame: Immediately after questionnaire completion

  2. Treatment Recommendation for Anterior Tooth

    Treatment recommendation for tooth 11 based on the assigned clinical case. Available options included no intervention, repair of the composite restoration, replacement of the restoration, direct composite veneer, or indirect ceramic veneer.

    Time frame: Immediately after questionnaire completion

07

Study locations

1 site
  • Universidade Federal de Santa Maria
    Santa Maria, Rio Grande do Sul 97501-650, Brazil
08

References and documents

Individual participant data

Plan to share: No — Individual participant data will not be made publicly available because the study collected information from individual professionals under conditions of confidentiality and anonymity. Data sharing may be restricted by ethical and institutional requirements.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Sep 2023 to primary completion in Apr 2024, 6 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 22, 2026
First posted
Jun 30, 2026
StartActual
Sep 12, 2023
Primary completionActual
Apr 9, 2024
CompletionActual
Apr 9, 2024
Last update
Jun 30, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 30, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07675564
Lead sponsor
Universidade Federal de Santa Maria
Responsible party
FELIPE SOMAVILLA BINOTTO (Graduate Researcher, Universidade Federal de Santa Maria) — Principal investigator
First posted
Jun 30, 2026
Start date
Sep 12, 2023
Primary completion
Apr 9, 2024
Completion
Apr 9, 2024
Last update
Jun 30, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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