No drill, no needle? new study tests crowns that slip over cavities in children

NCT ID NCT07648654

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

Summary

This study compares two methods for treating cavities in children's back molars: the Hall Technique, which places a crown over the tooth without drilling or numbing, and the conventional method, which requires drilling and anesthesia. Researchers will track 200 children aged 5-8 to see which approach leads to better crown survival, less anxiety, shorter treatment time, and lower cost over 3 months. The goal is to find a gentler, effective option for kids.

What this could mean

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

Active substance

Hall Technique (a procedure where a preformed metal crown is cemented over a decayed tooth without drilling or anesthesia) and conventional stainless-steel crown (a procedure involving drilling and anesthesia)

What this could lead to

If the Hall Technique works well, it could offer a less scary, faster, and cheaper way to treat cavities in children's back teeth, reducing anxiety and the need for drilling.

What could go wrong

This is a small, short-term study (200 children, 3 months follow-up). The Hall Technique may not work as well as the standard method in the long run, and there is a risk of the crown failing or decay worsening underneath.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

dental caries

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

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

Locations

  • Pedodontics clinic - Faculty of Dentistry _ MTI University

    RECRUITING

    Cairo, 11585, Egypt

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