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Laughing gas eases Kids' dental fears, study finds

NCT ID NCT07384988

Symptom relief Sponsor: Shaoxing Maternity and Child Health Care Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 whether nitrous oxide (laughing gas) can reduce dental fear in 60 children aged 6-10. The children received dental treatments like fillings or extractions. Researchers measured anxiety using standard scales and found that nitrous oxide helped lower fear and improve behavior during procedures.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

60 people

The number who actually took part.

Started

Jan 2024

Finished

Sep 2024

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

6 to 10 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: * 1.Aged 6-10 years; 2.Classified as American Society of Anesthesiologists (ASA) physical status I-II; 3.Required dental treatments such as caries filling, pulp therapy, or tooth extraction; 4.Informed consent obtained from the child's guardian. Exclusion Criteria: * 1.Contraindications to nitrous oxide inhalation, such as severe cardiopulmonary dysfunction, intestinal obstruction, or pneumothorax; 2.Mental illness or intellectual disability that would hinder cooperation with assessments or treatment; 3.Received dental sedation or general anesthesia within the past month;

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As listed by the trial registrant

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

Dental anxiety

Contacts and locations

Locations

  • Shaoxing Maternity and Child Health Care Hospital

    Shaoxing, Zhejiang, 312000, China

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