Comparison of three laser settings in the treatment of oral canker sore

ISRCTN ISRCTN13865282
DOI https://doi.org/10.1186/ISRCTN13865282
Secondary identifying numbers 3331
Submission date
30/06/2023
Registration date
07/07/2023
Last edited
10/07/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
An aphthous ulcer, also known as a canker sore, is a common type of painful sore that forms inside the mouth. It appears as a round or oval lesion with a white or yellowish center and a red border. Aphthous ulcers can be quite uncomfortable and can make it difficult to eat, drink, or speak.
Laser treatment has been used as an alternative or adjunctive therapy for aphthous ulcers. The procedure involves the use of a laser beam to target and treat the affected area. The laser energy is applied to the ulcer, which helps promote healing and alleviate symptoms.
This study aimed to compare three types of laser in the treatment of aphthous ulcers.

Who can participate?
Adults from age 20-40 years having one or more aphthous ulcers.

What does the study involve?
Participants will be randomly allocated to receive one of three types of laser treatment or inactivated laser as a placebo. Assessment of pain, acceleration of healing, redness, patient satisfaction with treatment and recurrence.

What are the possible benefits and risks of participating?
Participants will have less pain sensation, acceleration of healing as well as improved quality of life. These types of lasers are safe and cause no harm to patients, regardless of their age and health condition.

Where is the study run from?
Damascus University (Syria)

When is the study starting and how long is it expected to run for?
June 2019 to December 2022

Who is funding the study?
Damascus University (Syria)

Who is the main contact?
Dr. Esra'a AlHerafi, esraa.herafi.94@gmail.com

Contact information

Dr Esra'a AlHerafi
Scientific

AlThawra Street
Damascus
-
Syria

ORCiD logoORCID ID 0009-0009-8451-6445
Phone +963 991415924
Email esraa94.alherafi@damascusuniversity.edu.sy

Study information

Study designinterventional single-center randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Home, University/medical school/dental school
Study typeTreatment, Efficacy
Participant information sheet 43875 PIS (Arabic).pdf
Scientific titleA comparative study among three different wavelengths of low level laser on recurrent aphthous ulceration management
Study objectivesStudies suggested that low-level laser therapy is a suitable alternative or adjunct treatment option for recurrent aphthous ulcers. However, more clinical trials are required to be conducted to compare the efficacy of different wavelengths in order to ascertain their efficacy in the clinical setting
Ethics approval(s)

Approved 09/09/2019, Damascus University (Rector Baramkeh, Damascus, 3331, Syria; +963 555063806; info@damascusuniversity.edu.sy), ref: 3331

Health condition(s) or problem(s) studiedManagement of patients with recurrent aphthous ulcers
InterventionTreating recurrent aphthous ulcers on 64 patients (divided into 4 groups) with three laser wavelength (808nm,660nm,635nm) controlled with placebo as application of an inactivated laser as follows:

1. GaAs 635 nm gallium arsenide laser:
Power: 220 milliwatts
Fluency: 4.2 J/cm³
Depth of tissue: 1 cm
The necessary irradiation time(treatment time): 19 seconds / 2 times, separated by 30 seconds rest
Laser beam spot size: 0.5 cm²
Irradiance: 0.34 W/cm2
Application method: direct contact . (to focus the rays over the ulcer area)

2. AlGaInP 660 nm Aluminum gallium indium phosphide laser:
Power: 150 milliwatts
Fluency: 4.1 J/cm³
Depth of tissue: 1 cm
Irradiation time: Treatment Time: 27 seconds/twice, with 30 seconds rest between them
Laser beam spot size: 0.5 cm²
Irradiance: 0.24 W/cm²
Application method: direct contact.

3. GaAlAs 808 nm gallium aluminum arsenide laser:
Power: 250 milliwatts
Fluency: 4 J/cm³
Depth of tissue: 1 cm
Irradiation time: Treatment Time: 16 seconds/twice, with 30 seconds rest between them
Laser beam spot size: 0.5 cm²
Irradiance: 0.40 W/cm²
Application method: direct contact.

The samples were sorted randomly, where 4 similar classifiers containing 4 symbols (English letters A, B, C, D) were placed, where each group had a previously defined symbol, and the classifiers were randomly drawn so that the first sixteen patients were entered in the group that was drawn first and The second sixteen patients in the group that were withdrawn secondly, and so on... with the help of an assistant researcher.

Follow up for 7 days.
Intervention typeDevice
Pharmaceutical study type(s)Dose response
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Klas-DX Intelligen LLLT Dose Unit
Primary outcome measure1. Pain is measured using a visual analogue scale (VAS) at baseline, before treatment, directly after treatment, and on days 2, 3, 5, 7 after treatment.
2. Lesion size is measured using dental probe at baseline, before starting the treatment, and on days 3, 7.
3. Erythema is measured using a scale based on Greer et al rules on a 4-point scale at baseline before starting treatment and immediately after treatment, and on days 3, 7.
4. Patient Satisfaction Index is measured using VAS scale after ulcer healing.
Secondary outcome measuresRecurrence is measured after one month in same place of treatment.
Overall study start date11/06/2019
Completion date13/12/2022

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit20 Years
Upper age limit40 Years
SexBoth
Target number of participants64
Total final enrolment64
Key inclusion criteria1. Patients with one or more aphthous lesion.
2. The lesion site on the buccal or labial oral mucosa, tongue, or floor of the mouth.
3. The patient has a history of recurrence.
4. No more than 48 hours have passed since the appearance of the lesion until the working day.
5. The diameter of the ulcer does not exceed 5 mm.
6. Age of 20 to 40 years.
7. The patient can attend the follow-up.
8. no other treatments for the present apthous ulcers.
9. Avoid pungent foods and acidic drinks during the follow-up period.
Key exclusion criteria1. Smokers
2. Patients with systemic conditions related to oral ulcers such as Crohn's disease
3. Patients taking antibiotics or anti-inflammatory drugs during the month before treatment
Date of first enrolment06/10/2019
Date of final enrolment20/09/2022

Locations

Countries of recruitment

  • Syria

Study participating centre

Damascus University
Clinical of the Oral Medicine Department
Mazzah High Way
Damascus
-
Syria

Sponsor information

Damascus University
University/education

Damascus University Rector Baramkeh
Damascus
-
Syria

Phone +963 1133923192
Email info@damascusuniversity.edu.sy
Website http://www.damascusuniversity.edu.sy
ROR logo "ROR" https://ror.org/03m098d13

Funders

Funder type

University/education

Damascus University
Government organisation / Universities (academic only)
Alternative name(s)
University of Damascus, جَامِعَةُ دِمَشْقَ, DU
Location
Syria

Results and Publications

Intention to publish date01/10/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryPublished as a supplement to the results publication
Publication and dissemination planPlanned publication in a high-impact and peer-reviewed journal
IPD sharing planThe datasets during the current study will be published as a supplement to the results publication

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet 07/07/2023 No Yes
Protocol file 07/07/2023 No No

Additional files

43875 Protocol.pdf
43875 PIS (Arabic).pdf

Editorial Notes

10/07/2023: Internal review.
07/07/2023: Trial's existence confirmed by Damascus University