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Laughing gas danger? study probes Kids' abuse risk at dentist

NCT ID NCT02894463

Knowledge-focused Sponsor: Nantes University Hospital 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at 76 children aged 3 to 15 getting dental care with nitrous oxide (laughing gas). Researchers watched for signs that kids wanted to keep the mask on longer, like hand gestures or asking to keep it. The goal was to see if there's a risk of children misusing the gas. It's a small, early study that just observes behavior, not a treatment trial.

What this could mean

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

Active substance
nitrous oxide (MEOPA)
What this could lead to
If successful, this could help identify early signs of nitrous oxide misuse in children, leading to better safeguards during dental procedures.
What could go wrong
This is a small, single-center observational study with no control group, so results may not apply broadly. It only measures behavior, not long-term effects.

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.

Participants

76 people

The number who actually took part.

Start date

Nov 2014

Finished

May 2015

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.

Who is studied

All patients seen in consultation EMENO and being younger than 15 years will be offered this study. This is a population of non-cooperative patients to dental care or with a disability limiting their cooperation. A quick questionnaire will be submitted in the consultations EMENO the SSC, the children after their parents' permission.

Ages

3 to 15 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: * Children aged 3 to 15 years * Requiring dental care under MEOPA * Not opposing, as well as his parents, his participation in the study * Not having difficulties tracking (going on holiday, imminent change, remoteness, lack of motivation) Exclusion Criteria: Excluded patients are those whose dental care can be made to the vigil state, or on the contrary, will present a number of important care, justifying general anesthesia. Also excluded will be children whose parents no longer have parental authority or whose parents are divorced or divorcing.

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Conditions

The condition(s) this trial relates to.

periodontal disorder

As listed by the trial registrant

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

Periodontal disease

Contacts and locations

Locations

  • CHU de Nantes

    Nantes, 44093, France

More trials for these conditions

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