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Digital vs. goo: which dental mold wins for toothless patients?

NCT ID NCT07190820

Knowledge-focused Sponsor: Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares the accuracy of digital scans versus traditional putty impressions for making dental implants in people with no teeth. About 24 adults aged 30-80 who need full-arch implant-supported bridges will participate. Researchers will check how well the metal framework fits using vision and touch tests.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 24 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2025

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

30 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Aged 30-80 years (inclusive) with no gender restriction. * Patients who will receive a full-arch one-piece implant-supported fixed * permanent restoration in the maxilla or mandible. * Patients with osseointegrated implants after surgery. * Patients voluntarily participate in the trial and sign the informed consent form. Exclusion Criteria: * Patients with insufficient interarch space in the posterior region for impression coping placement. * Patients with minimal inter-implant distance may prevent impression coping installation. * Patients with temporomandibular joint (TMJ) disorders are unable to maintain prolonged mouth opening for impression procedures. * Other conditions deemed ineligible for inclusion by the investigator.

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Conditions

The condition(s) this trial relates to.

Jaw, Edentulous

As listed by the trial registrant

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

Edentulous jaw

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Shanghai ninth people's hospital

    Shanghai, China

More trials for these conditions

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