Skip to content

Use of low-level infrared laser to reduce pain during dental local anesthesia in children

Effect of photobiomodulation with low-level infrared laser on pain perception during local anesthesia in children: a randomized clinical trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-38d67cj
Enrollment
70
Registered
2026-05-11
Start date
2026-03-02
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain

Interventions

This is a randomized, controlled, parallel-group clinical trial with a triple-blind design. Participants will be randomly allocated, using a computer-generated randomization sequence (Sealed Envelope

Sponsors

Faculdade de Odontologia de Piracicaba - UNICAMP
Lead Sponsor
Faculdade de Odontologia de Piracicaba - UNICAMP
Collaborator

Eligibility

Age
6 Years to 12 Years

Inclusion criteria

Inclusion criteria: Children aged 6 to 12 years, of both genders, requiring dental treatment in the maxillary primary molar region, without spontaneous pain; participants must present positive or definitely positive behavior according to the Frankl Scale, corresponding to scores 3 or 4

Exclusion criteria

Exclusion criteria: Participants presenting allergy to local anesthetics or sulfites; presence of any systemic condition contraindicating the dental procedure; history of adverse reactions to previous dental treatments; presence of lesion or trauma at the anesthetic injection site; use of medications within the previous 24 hours that may interfere with pain perception

Design outcomes

Primary

MeasureTime frame
It is expected to observe pain perception during local anesthesia, assessed immediately after anesthetic infiltration using the Wong-Baker FACES Pain Rating Scale

Secondary

MeasureTime frame
It is expected to observe the child’s behavioral response during local anesthesia, assessed using the FLACC Scale (Face, Legs, Activity, Cry, Consolability);It is expected to observe the child’s heart rate, measured using a pulse oximeter before, during, and immediately after the anesthetic procedure;It is expected to observe peripheral oxygen saturation (SpO2), recorded using a pulse oximeter before, during, and immediately after local anesthesia

Countries

BR

Contacts

Public ContactFelipe Farias-da-Silva

Faculdade de Odontologia de Piracicaba - UNICAMP

f265732@dac.unicamp.br+55(88)99959-9709

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Jun 11, 2026