Which dental impression method works best? new trial aims to find out.

NCT ID NCT07282977

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This trial tests three common ways to move the gums aside (gingival displacement) when taking impressions for dental crowns. 39 adults needing a single front tooth crown will receive one of three methods: a retraction cord, a retraction paste, or a cord plus hemostatic gel. Researchers will measure how well each method opens the gum sulcus and check for bleeding and pain.

What this could mean

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

What this could lead to
If successful, this trial could identify the most effective method for taking dental impressions, improving the fit of crowns and reducing patient discomfort.
What could go wrong
This is a small, early-stage trial with only 39 participants, so results may not apply to all patients. It compares existing methods, not a new breakthrough.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • department of stomatology, Henan provincial people's hospital, People's hospital Henan university.

    Zhengzhou, Henan, 450000, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.