ClinicalTrials.gg
RecruitingNCT07548502Updated Apr 29, 2026

Effect of Night Guard Use on Masseter Muscle Thickness in Children With Bruxism

An interventional study of Occlusal Splint (Night Guard) in Bruxism and Bruxism, Sleep-Related, sponsored by Nigde Omer Halisdemir University. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 10 Years to 12 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-29.

Primary conditionSleep BruxismRegistry: BruxismReclassifiedWhy we changed it
Registry
Bruxism — the first condition term the registry derived for this study.
ClinicalTrials.gg
Sleep Bruxism
Why
  1. The study's listed conditions name Sleep Bruxism, a narrower term within Bruxism.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Nigde Omer Halisdemir University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Mar 2026; still recruiting 7 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
10 Years to 12 Years
Sex
All
01

Study summary

This prospective study aims to evaluate the clinical findings of bruxism and masseter muscle thickness in children aged 10-12 years using ultrasonography, and to assess the effects of night guard use on these parameters over time.

Read the detailed description

This prospective, single-group follow-up study is designed to evaluate the effects of night guard use on bruxism symptoms and masseter muscle thickness in children aged 10-12 years. A total of 20 children diagnosed with bruxism based on parental reports and clinical examination will be included. Clinical findings, including tooth wear, muscle tenderness, temporomandibular joint findings, and parafunctional habits, will be recorded.

Masseter muscle thickness will be measured bilaterally using ultrasonography under standardized conditions at baseline, 3 months, and 6 months. Following baseline evaluation, a custom-made night guard will be fabricated for each participant and regular use will be recommended.

Changes in clinical symptoms and muscle thickness over time will be analyzed. Ultrasonographic measurements will be performed using a standardized protocol by an experienced dentomaxillofacial radiologist. The study does not include a control group. All procedures are non-invasive and do not involve ionizing radiation.

02

Conditions studied

  • Bruxism
  • Bruxism, Sleep-Related

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Keywords

  • Pediatric bruxism
  • Masseter muscle thickness
  • Ultrasonography
  • Night Guard
03

In context

Sleep Bruxism Reclassified

62 studies on the registry are indexed under Sleep Bruxism; 11 are open to participants now.

This study's planned enrollment of 20 is below the median of 39 across 38 interventional studies indexed under Sleep Bruxism.

Browse Sleep Bruxism studies →

Lead sponsor

Nigde Omer Halisdemir University is the lead sponsor of 93 studies on the registry; 31 are open to participants now.

Compared within Sleep Bruxism, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Bruxism. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
10 Years to 12 Years
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

  1. Children aged 10-12 years
  2. Diagnosis of bruxism based on parental report and clinical findings
  3. Willingness to participate
  4. Parental consent and child assent obtained

Exclusion criteria

Exclusion Criteria:

  1. Missing posterior teeth causing unilateral chewing
  2. History of psychological disorders
  3. Neurological disorders or craniofacial abnormalities
  4. Use of medications affecting muscle activity
  5. Presence of skeletal malocclusions
  6. Ongoing orthodontic treatment
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Night Guard Treatment

    Device: Occlusal Splint (Night Guard)

Interventions

  • DeviceOcclusal Splint (Night Guard)

    Participants will receive a custom-made night guard and will be instructed to use it regularly during sleep.

06

What researchers measure

Primary outcomes

  1. Change in masseter muscle thickness

    Change in masseter muscle thickness (measured by ultrasonography)

    Time frame: Baseline, 3 months, 6 months

Secondary outcomes

  1. Change in bruxism-related clinical symptoms assessed by Wong-Baker Faces Pain Rating Scale

    Changes in bruxism-related symptoms including muscle pain, fatigue, and headache will be assessed using a Wong-Baker Faces Pain Rating Scale (WBFPRS). The WBFPRS consists of a scale ranging from 0 (no hurt) to 10 (hurt worst). Higher scores indicate greater symptom severity.

    Time frame: Baseline, 3 months, 6 months

  2. Change in temporomandibular joint (TMJ) clinical findings (joint sounds, deviation/deflection, pain on palpation)

    Temporomandibular joint (TMJ) findings will be assessed by clinical examination, including the presence of joint sounds (clicking/crepitation), mandibular deviation or deflection during opening, and pain on palpation. Each finding will be recorded as present or absent. The number of positive findings per participant will be calculated, with higher values indicating greater TMJ involvement.

    Time frame: Baseline, 3 months, 6 months

07

Study locations

1 of 1 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 29, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07548502
Lead sponsor
Nigde Omer Halisdemir University
Responsible party
Sponsor
First posted
Apr 23, 2026
Start date
Mar 15, 2026
Primary completion
Sep 2026 (estimated)
Completion
Oct 2026 (estimated)
Last update
Apr 29, 2026

Study contacts

Aycan Dal Dönertaş
Contact
aycandal@outlook.com
+903382252595
Serkan Yılmaz
Contact
serkanyilmaza@gmail.com
+905378970192

Oversight

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

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