New gel could make dental x-rays easier for kids who gag

NCT ID NCT07509918

Not yet recruiting Symptom relief Sponsor: Cairo University Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests three gels applied to the mouth before dental X-rays to see which best controls the gag reflex in children aged 8-10. The gels include tannic acid-zinc acetate, lidocaine, and a placebo. Researchers will measure gag severity and pulse rate in 66 children to find a better alternative to standard numbing gels.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: tannic acid-zinc acetate mucoadhesive gel
What this could lead to: If it works, this could offer a simple, non-numbing alternative to lidocaine for controlling gag reflex in children during dental X-rays.
What could go wrong: This is a small pilot study with only 66 children, so results may not apply to everyone. The gels may not work better than lidocaine or could cause side effects.

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Conditions

The condition(s) this trial relates to.

Gagging primary interstitial lung disease specific to childhood

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

CHILD GAG REFLEX

Contacts and locations

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Study contacts

Contact

Phone: •••-•••-•••• Email: •••••@•••••
Contact

Phone: •••-•••-•••• Email: •••••@•••••

Locations

Faculty of dentistry Cairo university

Cairo, Egypt

Contact Phone: •••-•••-•••• Email: •••••@•••••

Contact

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