Evaluation of the effect of low level laser on sensory disturbances after mandibular orthognatic surgery

Evaluation of the effect of photobiomodulation on neurosensory disturbances after sagittal osteotomy of mandible

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20190513043579N1

Enrollment

Registered

2019-06-09

Start date

2018-06-01

Completion date

Unknown

Last updated

2019-08-26

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

Conditions

neurosensory disorder.

Interventions

Laser irradiation was applied with a GaAs diode laser (Wiser

Doctor Smile–Lambda Spa, Brendola, Vicenza, Italy) (980 nm wavelength, power of 100 mW, and the energy density of 12 J/cm2). Laser irradiation was maintained within a 0.5 cm2 area. Laser energy was us

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: no previous facial trauma or inferior alveolar nerve injury no neurosensory disturbance before surgery patients underwent osteotomy to correct the maxillofacial deformity no consumption of analgesic, anticonvulsants and antidepressants medications

Exclusion criteria

Exclusion criteria: Patients with systemic diseases patients with bad split or severe bleeding during the surgery patients with obvious nerve damage during the surgery patients with neuromuscular disorders patients’ candidate for genioplasty

Design outcomes

Primary

Measure	Time frame
Neurosensory recovery. Timepoint: assessment of neurosensory recovery 1 and 30 and 60 days after the surgery. Method of measurement: neurosensory tests.	—

Secondary

Measure	Time frame
General Sense. Timepoint: assessment of General Sense 1 and 30 and 60 days after the surgery. Method of measurement: Visual Analogue Scale.;Pain Sensation. Timepoint: assessment of Pain Sensation 1 and 30 and 60 days after the surgery. Method of measurement: Needle gauge 23.;Two Point Discrimination. Timepoint: assessment of Two Point Discrimination 1 and 30 and 60 days after the surgery. Method of measurement: surgical compass.;Thermal discrimination. Timepoint: assessment of Thermal discrimination 1 and 30 and 60 days after the surgery. Method of measurement: Ethyl chloride spray.;Directional discrimination. Timepoint: assessment of directional discrimination 1 and 30 and 60 days after the surgery. Method of measurement: Clinical test by nylon thread.	—

Measure

Time frame

General Sense. Timepoint: assessment of General Sense 1 and 30 and 60 days after the surgery. Method of measurement: Visual Analogue Scale.;Pain Sensation. Timepoint: assessment of Pain Sensation 1 and 30 and 60 days after the surgery. Method of measurement: Needle gauge 23.;Two Point Discrimination. Timepoint: assessment of Two Point Discrimination 1 and 30 and 60 days after the surgery. Method of measurement: surgical compass.;Thermal discrimination. Timepoint: assessment of Thermal discrimination 1 and 30 and 60 days after the surgery. Method of measurement: Ethyl chloride spray.;Directional discrimination. Timepoint: assessment of directional discrimination 1 and 30 and 60 days after the surgery. Method of measurement: Clinical test by nylon thread.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactMohammad Mehdi Taheri

Tehran University of Medical Sciences

Hamedta90@gmail.com+98 989171004971

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026