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RecruitingNCT06819033Updated Mar 25, 2025

Effects of Photobiomodulation (PBM) on Pain After Presentation of Aphthous Ulcers in Pediatric Dental Patients

A Phase 4 interventional study of PBM Therapy and Maalox plus Benadryl in Aphthous Ulcer, sponsored by The University of Texas Health Science Center, Houston. Recruiting at 1 site in United States. Open to participants aged 5 Years to 17 Years. Per ClinicalTrials.gov, last updated 2025-03-25.

Sponsored by The University of Texas Health Science Center, Houston · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Feb 2026, 8 months ago, but the record still lists the study as recruiting.
  • Started Mar 2025; still recruiting 1 year 8 months later.
Phase
Phase 4
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
5 Years to 17 Years
Sex
All
01

Study summary

The purpose of this study is to compare the efficacy of laser photobiomodulation and "Magic Mouthwash" for treatment of pain in pediatric patients with aphthous ulcers , to assess how photobiomodulation influences the rate of healing of aphthous ulcers in pediatric patients and to measure changes in pain levels reported by pediatric patients undergoing photobiomodulation treatment for aphthous ulcers.

02

Conditions studied

  • Aphthous Ulcer

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Keywords

  • magic mouthwash
  • laser treatment
03

In context

Stomatitis, Aphthous

63 studies on the registry are indexed under Stomatitis, Aphthous; 17 are open to participants now.

This study's planned enrollment of 30 is below the median of 41 across 54 interventional studies indexed under Stomatitis, Aphthous.

Browse Stomatitis, Aphthous studies →

Lead sponsor

The University of Texas Health Science Center, Houston is the lead sponsor of 897 studies on the registry; 214 are open to participants now.

Of its 173 completed or terminated interventional studies of FDA-regulated products, 142 (82%) have results posted.

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

04

Who can participate

Ages eligible
5 Years to 17 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Patient/guardian speaks either English or Spanish
  • Patient presenting with one or more aphthous ulcers in their mouth, identified during a scheduled dental appointment
  • No previous PBM treatment to the presenting aphthous ulcer(s)
  • Guardian able to partake in a follow-up phone call in either the English or Spanish language

Exclusion criteria

Exclusion Criteria:

  • Patient presents with aphthous ulcers recently treated with PBM
  • Patient presents with herpes labialis (cold sores)
  • Patients presents with systemic disease that affects soft tissue/mucous healing
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    PBM Therapy

    Device: PBM Therapy · Drug: Maalox plus Benadryl

  • Active comparator
    Standard of care

    Drug: Maalox plus Benadryl

Interventions

  • DevicePBM Therapy

    patients will receive PBM therapy using the Biolase Epic pro laser. An average power of 0.6w (peak power = 80w, rep. rate= 20Hz). Each aphthous ulcer will be irradiated one time for a total of 30 seconds via continuous wave.

  • DrugMaalox plus Benadryl

    Drug page: Diphenhydramine

    1:1 mixture of Maalox and Benadryl will be applied to the ulcer as needed for pain. Applications typically will be applied before eating to form a dissolvable oral band-aid that lasts for up to 30 minutes. 10 milliliters of 1:1 Maalox: Benadryl solution will be provided to the family. During the presenting appointment, the patient/family will be shown how to use the 1:1 Maalox: Benadryl solution. It will be applied topically with no rinsing needed.

06

What researchers measure

Primary outcomes

  1. Change in Quality of life as assessed by questionnaire (Likert scale)

    This is a 6 item questionnaire and each is scored from 1-5, maximum score of 30,higher number indicating better outcome

    Time frame: Baseline, immediately after treatment(about 5 minutes), 24 hours after treatment

  2. Pain as assessed by how frequently patient complains of pain (Likert scale)

    Time frame: upto 24 hours after treatment

  3. Pain as assessed by number of participants who are using any over-the-counter or prescription medications, topical treatments, or oral rinses to treat aphthous ulcer pain

    Time frame: upto 24 hours after treatment

Secondary outcomes

  1. Change in lesion size as an indication of healing as assessed by clinical intraoral images of the aphthous ulcer and measuring tool

    Time frame: pre-treatment and immediately post-treatment(about 5 minutes)

  2. Change in pain as assessed by a Visual Analogue Scale (VAS) for control group

    Pain level is scored from 0(no pain) to 10(worst pain)

    Time frame: Baseline, 24 hours after treatment

  3. Pain as assessed by a Visual Analogue Scale (VAS) for experimental group

    Pain level is scored from 0(no pain) to 10(worst pain)

    Time frame: Baseline, immediately after PBM(about 5 minutes), 24 hours after treatment

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Mar 2025 (actual). Primary completion is estimated for Feb 2026, 11 months after the start.

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

Registered
Feb 5, 2025
First posted
Feb 11, 2025
StartActual
Mar 10, 2025
Primary completionEst.
Feb 27, 2026
CompletionEst.
Feb 28, 2026
Last update
Mar 25, 2025
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 Mar 25, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06819033
Responsible party
Brett Thomas Chiquet (Associate Professor, The University of Texas Health Science Center, Houston) — Principal investigator
First posted
Feb 11, 2025
Start date
Mar 10, 2025
Primary completion
Feb 27, 2026 (estimated)
Completion
Feb 28, 2026 (estimated)
Last update
Mar 25, 2025

Study contacts

Brett Chiquet, DDS, PhD
Contact
Brett.T.Chiquet@uth.tmc.edu
(713) 500-8220
Jessica Hochschuler
Contact
Jessica.L.Hochschuler@uth.tmc.edu
(713) 486-4141
Brett Chiquet, DDS, PhD
principal investigator · The University of Texas Health Science Center, Houston

Oversight

FDA-regulated drug
Yes
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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