Apple Watch Evaluation of Endodontics Occupational Stress

March 23, 2026 updated by: Shlomo Elbahary, University of Illinois at Chicago
  • This study will enroll approximately 12 endodontists (primary subjects) and approximately 120 patients (secondary subjects) undergoing routine endodontic treatment (primary root canal treatment or retreatment), resulting in approximately 120 observed treatment sessions. Patients will be treated as part of standard clinical care and will not receive any experimental intervention.
  • Participating endodontists will wear an Apple Watch to continuously monitor heart rate (HR) during routine endodontic procedures. The Apple Watch contains built-in physiological sensors that automatically record heart rate. HR data are stored locally in the Apple Health app on a study-designated iPhone assigned for research use and handled solely by the Principal Investigator (PI). No real-time data transmission or cloud-based sharing occurs during data recording. At designated intervals, the PI will use the Apple Health app's built-in "Export Health Data" function, which generates a ZIP file containing an export.xml file with sensor-recorded data. The ZIP file will be uploaded directly from the study iPhone to a secure, university-approved UI Box Health Data Folder designated for the study. No research-specific Apple ID, cloud account, or third-party data-sharing platform will be used.
  • A trained, non-intervening observer will record start and stop timepoints of predefined endodontic treatment stages to align HR signals with procedural phases. These stages include patient presentation, examination, informed consent, local anesthesia administration, rubber dam placement, access cavity preparation, root canal instrumentation, obturation, and final radiographic assessment. The observer will document only minimal, non-identifiable procedural variables necessary for analysis, including treatment type (primary root canal treatment or retreatment), treatment difficulty level (based on the AAE Endodontic Case Difficulty Assessment), and patient age category. No patient identifiers or protected health information (PHI) will be recorded.
  • Each participating endodontist will complete the Perceived Stress Questionnaire (PSQ) two times in total at baseline and at the conclusion of study participation to assess perceived stress levels and evaluate associations between baseline stress and physiological stress responses during treatment. The PSQ requires approximately 5 minutes to complete. Endodontists will not complete questionnaires for individual patient encounters. HR data and permitted procedural variables will be coded, securely stored in the UI Box Health Data Folder, and analyzed to assess HR variation across endodontic treatment stages and treatment difficulty levels. No additional patient identifiers or PHI will be collected beyond what is specified above.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
12

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

  • United States
    • Illinois
      • Chicago, Illinois, United States, 60612
        • University of Illinois Chicago (UIC) College of Dentistry
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

A total of approximately 132 subjects will be enrolled in this study, consisting of approximately 12 endodontics (primary subjects) and approximately 120 patients (secondary subjects). Each participating endodontics will be observed during approximately 10 endodontic treatment sessions, resulting in an estimated total of 120 clinical sessions for data collection. Each patient will participate in one clinical encounter only, while resident participation will continue throughout the data collection period.

Description

Inclusion Criteria for Primary Subjects (endodontics residents) :

  • Active enrollment in an accredited endodontics residency program during the data-collection period
  • Routine clinical involvement in primary root canal treatment and/or retreatment
  • Willingness to wear a wrist-worn heart rate monitoring device during clinical sessions
  • Willingness to complete the Perceived Stress Questionnaire (PSQ) at baseline and at the conclusion of participation
  • Absence of medical or dermatologic conditions that would preclude safe or accurate wrist-worn heart rate monitoring

Inclusion Criteria for secondary Subjects (Patients):

  • Scheduled to receive standard endodontic care with a participating endodontics resident during the study period
  • Willingness to allow the presence of a non-intervening observer
  • Willingness to allow collection of minimal, approved visit-level variables
  • Adult patients able to provide written informed consent
  • Minor patients (under 18 years of age) with parent or legally authorized representative permission
  • Assent obtained from minors as follows:
  • Verbal assent for minors aged 7-12 years
  • Written assent for minors aged 13-17 years
  • No formal assent required for children under 7 years of age (developmentally appropriate explanation provided when feasible)
  • Ability of patient or legally authorized representative to understand and communicate in English

Exclusion Criteria for Primary Subjects (endodontics residents) :

  • Not engaged in clinical endodontic care during the study window
  • Known dermatologic, cardiovascular, neurologic, or other medical conditions that could interfere with safe or accurate heart rate monitoring
  • Unwilling or unable to provide informed consent or comply with study procedures

Exclusion Criteria for secondary Subjects (Patients):

  • Decline consent, permission, or assent
  • Withdraw participation at any time
  • Prisoners or individuals under custodial supervision
  • Pregnant patients

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Patients need Root canal treatment

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
The change in heart rate (HR) of endodontists measured across predefined stages of endodontic treatment.
Time Frame: Periprocedural
Periprocedural

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Illinois at Chicago

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 (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 15, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 15, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 8, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 23, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 27, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 27, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 23, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • STUDY2026-0077

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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