Skip to main content
OpenTrials
Recruiting

NCT Number: NCT07835191

Efficacy of Pre-cooling and Sweet-tasting Solution on Pain Related to Local Anesthesia Injection in Children

The study aims to determine whether pre-cooling and sweet-tasting solutions, alone or combined with topical anesthesia, provide better pain control during dental local anesthesia in children.

It has two phases:

Phase 1: Identify the children's preferred sweet-tasting solution among xylitol, monk fruit, erythritol, and honey.

Phase 2: A randomized controlled trial comparing 7 groups involving pre-cooling, sweet solution, topical anesthesia, and their combinations.

The primary outcome is pain measured by VAS, while secondary outcomes include SEM behavioral response, heart rate, and oxygen saturation. The planned sample is 220 children.

Recruiting

Interested in participating?

Request Info

Key information

Age range

7 year–11 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Faculty of Dentistry, British University in Egypt

Cairo, El Sherouk, Egypt

Location status: Recruiting

Location contact

Nada M Farouk, bachelors degree

PRINCIPAL_INVESTIGATOR

Nada M Farouk, post graduate student

CONTACT

[email protected]

+21020668262

Noha S Kabil, professor

SUB_INVESTIGATOR

Ola A Abd El-Geleel, associate professor

SUB_INVESTIGATOR

Ola A Abd El-geleel, Associate Professor

CONTACT

[email protected]

+21006086830

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age group 7-11 years
  • Patients requiring infiltration anesthesia to fulfill dental therapeutic needs
  • Frankl behavior scale 3 and 4

Exclusion criteria

  • Failure to provide assent or consent
  • Allergy from local anesthetic solution
  • Systemic diseases such as diabetes that could affect pain perception
  • History of abscess or fistula at site of injection

Treatment and study plan

Dental anesthesia

Behavioral

The intervention consists of pre-cooling and/or a sweet-tasting solution, used alone or in combination with topical local anesthesia, before administration of the dental local anesthetic injection.

Primary outcomes

  1. Visual Analog Scale (VAS)

    Time frame: Immediately after intervention

    Pain Intensity assessed by visual analogue scale

Secondary outcomes

  1. Phase 1 outcome

    Time frame: After intervention

    The preferred sweet tasting solution based on number of patients

  2. Heart Rate

    Time frame: Heart rate (beats per minute) measured immediately before needle insertion (baseline) and during needle injection and after needle injection

    Heart rate (beats per minute) measured immediately before needle insertion (baseline) and the maximum heart rate recorded during needle injection and after needle injection

  3. Sound, eye and motor scale (SEM) scale

    Time frame: During needle injection

    Behavioral pain response during local anesthetic injection assessed using the Sound, Eye, and Motor (SEM) Scale. Sound, eye, and motor responses are each scored from 1 to 4, with 1 indicating comfort and 4 indicating a painful response. The three component scores are summed to obtain a total SEM score ranging from 3 to 12, with higher scores indicating greater behavioral response to pain.

  4. Oxygen saturation

    Time frame: Immediately before needle injection (baseline), during needle injection, and immediately after completion of injection. Recorded as percentage

    Peripheral oxygen saturation (SpO₂) will be measured using a pulse oximeter and recorded as a percentage at three time points: immediately before local anesthetic needle injection (baseline), during needle injection, and immediately after completion of the injection.

Sponsors and collaborators

Lead sponsor

British University In Egypt

Other

Registry information

Official study title

Efficacy of Pre-cooling and Sweet-tasting Solution on Pain Related to Local Anesthesia Injection in Children: A Randomized Control Trial

Important dates

Study start
2025
Primary completion
2027
Study completion
2027
First posted
Sep 22, 2026
Registry last updated
Sep 22, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.