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CompletedNCT07923890Updated Nov 9, 2026

Prospective Evaluation of the Relationship Between Pes Planus and Bruxism

An observational study in Pes Planus and Bruxism, sponsored by Istanbul Kent University. Completed at 2 sites in Turkey (Türkiye). Open to participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-09.

Sponsored by Istanbul Kent University · Observational

Updated Nov 9, 2026Newly registeredGo to Updates ↓
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
132
Ages
18 Years to 45 Years
Sex
All
01

Study summary

This prospective observational cohort study will examine whether flexible pes planus is associated with the development of bruxism. Adults aged 18-45 years who are free of bruxism at baseline will be classified into a flexible pes planus cohort or a control cohort without pes planus. Participants will be followed for bruxism-related outcomes. No treatment or intervention will be assigned.

02

Conditions studied

  • Pes Planus
  • Bruxism

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03

In context

Flatfoot

173 studies on the registry are indexed under Flatfoot; 44 are open to participants now.

This study's enrollment of 132 is above the median of 47 across 48 observational studies indexed under Flatfoot.

Browse Flatfoot studies →

Lead sponsor

Istanbul Kent University is the lead sponsor of 11 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
18 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

The study population consisted of 132 adults aged 18-45 years: 66 participants with flexible pes planus and 66 controls without pes planus. Participants were followed for bruxism-related outcomes.

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

  • Individuals aged 18-45 years.
  • Individuals who agree to participate in the study and to attend follow-up visits throughout the study period.

Exclusion criteria

Exclusion Criteria:

  • Current diagnosis of bruxism.
  • Known neurological or musculoskeletal disease.
  • Psychiatric diagnosis (e.g., anxiety or depression) with use of psychotropic medication.
  • Polysomnography-diagnosed sleep apnea or use of CPAP, BPAP, or APAP.
  • Diagnosed temporomandibular joint dysfunction.
  • Current orthodontic treatment or severe malocclusion.
  • Alcohol or tobacco dependence; alcohol consumption before sleep.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
132 participants (actual)
Patient registry
No

Groups and cohorts

  • Flexible Pes Planus Cohort

    Bruxism-free adults aged 18-45 years with flexible pes planus at baseline. Participants will be followed for bruxism-related outcomes.

    Other: Foot posture (flexible pes planus status)

  • Control Cohort Without Pes Planus

    Bruxism-free adults aged 18-45 years without pes planus at baseline. Participants will be followed for bruxism-related outcomes.

    Other: Foot posture (flexible pes planus status)

Interventions

  • OtherFoot posture (flexible pes planus status)

    Pes planus and foot posture will be assessed by clinical examination, including foot arch, gait, and ankle range of motion; plantography; Jack's Test; and heel alignment assessment. No intervention is assigned.

06

What researchers measure

Primary outcomes

  1. Incidence of New-Onset Bruxism

    Among participants without bruxism at baseline, the number and proportion who meet the study criteria for bruxism during follow-up, assessed using the Standardised Tool questionnaire and clinical examination.

    Time frame: At baseline and during follow-up through September 1, 2026

07

Study locations

2 sites
  • Kanuni Sultan Suleyman Training and Research Hospital
    Istanbul, Istanbul 34303, Turkey (Türkiye)
  • Istabul Kent University
    Istanbul, Istanbul 34433, Turkey (Türkiye)
08

References and documents

Individual participant data

Plan to share: No — Individual participant data will not be shared because no data-sharing plan has been established for this study. Study findings will be reported in aggregate.

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from May 2025 to primary completion in Sep 2026, 15 months.

Of 16 observational studies under Flatfoot, half reached primary completion within 6 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 25. This study's 15 months is above that.

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

Registered
Nov 3, 2026
First posted
Nov 9, 2026
StartActual
May 31, 2025
Primary completionActual
Sep 1, 2026
CompletionActual
Sep 1, 2026
Last update
Nov 9, 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.
Registered
First appeared on the registry. No changes since
Nov 9, 2026
Show all 1 update
  1. Nov 9, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07923890
Lead sponsor
Istanbul Kent University
Responsible party
Sponsor
First posted
Nov 9, 2026
Start date
May 31, 2025
Primary completion
Sep 1, 2026
Completion
Sep 1, 2026
Last update
Nov 9, 2026

Study contacts

Emine Tuna Akdoğan
principal investigator · Istanbul Kent University

Oversight

Data monitoring committee
No
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 Nov 2026. You cannot join it, but the record below documents what was studied.

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