Objective: in this study the effect of low level laser therapy (LLLT) on the rate of orthodontic tooth movement in human was evaluated. Methods & Materials: In this clinical trial study 12 patients were included which had extracted upper first premolars and required canine retraction into extraction site. While in both sides, canines were retracted by Niti coil spring, one side was exposed with GaAlAs laser (890 nm). LLLT was done on the buccal and palatal mucosa by slow movement of probe. Impression and cast fabrication performed in the beginning of retraction and one and two months later. However laser therapy had done just in the first month of retraction. Amount of retraction on the cast comparing with reference plaque fabricated on the rogae was measured by using digital caliper. Two days after beginning of retraction, the patients were asked about their pain on both sides by use of VAS scale.
General information
Acronym
IRCT registration information
IRCT registration number:IRCT138804022066N1
Registration date:2009-07-28, 1388/05/06
Registration timing:retrospective
Last update:
Update count:0
Registration date
2009-07-28, 1388/05/06
Registrant information
Name
Majid Mahmoudzadeh Darbandi
Name of organization / entity
Tehran university of medical sciences
Country
Iran (Islamic Republic of)
Phone
+98 21 8898 6677
Email address
mmahmoudzadeh@razi.tums.ac.ir
Recruitment status
Recruitment complete
Funding source
vice chancellor for research, Tehran University of Medical Sciences
Expected recruitment start date
2008-05-10, 1387/02/21
Expected recruitment end date
2009-05-10, 1388/02/20
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Evaluation of effect of low level laser on the rate of orthodontic tooth movement in human
Public title
Evaluation of effect of laser on tooth movement
Purpose
Treatment
Inclusion/Exclusion criteria
Inclusion criteria: patients who had been extracted upper first premolars for fixed orthodontic therapy
Exclusion criteria:
1)having systematic diseases effecting bone remodeling
2)taking drugs effecting bone remodeling
3)facial asymmetry
Age
From 12 years old to 25 years old
Gender
Both
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
12
Randomization (investigator's opinion)
N/A
Randomization description
Blinding (investigator's opinion)
Single blinded
Blinding description
Placebo
Used
Assignment
Parallel
Other design features
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Ethics committee of Tehran university of medical sciences
Street address
Tehran university of medical sciences, Gods street
City
Tehran
Postal code
Approval date
1988-01-03, 1366/10/13
Ethics committee reference number
8379
Health conditions studied
1
Description of health condition studied
Laser therapy
ICD-10 code
W90
ICD-10 code description
Exposure to other nonionizing radiation
Primary outcomes
1
Description
acceleration of the rate of canine retraction
Timepoint
4 weeks
Method of measurement
measurement by digital caliper on the patient's cast
Secondary outcomes
1
Description
decreasing of pain
Timepoint
2 days
Method of measurement
VAS test
Intervention groups
1
Description
low level laser therapy on intervention side
Category
Treatment - Other
2
Description
low level laser in shut off mode on control side
Category
Placebo
Recruitment centers
1
Recruitment center
Name of recruitment center
Dental research center-Tehran university of medical science
Full name of responsible person
Street address
City
Tehran
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Vice chancellor for research, Tehran University of Medical Sciences
Full name of responsible person
Dr.Yunesian
Street address
Tehran university of medical sciences, Gods street
City
Tehran
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Vice chancellor for research, Tehran University of Medical Sciences
Proportion provided by this source
100
Public or private sector
empty
Domestic or foreign origin
empty
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
empty
Person responsible for general inquiries
Contact
Name of organization / entity
Tehran university of medical sciences
Full name of responsible person
Dr. Majid Mahmoudzadeh Darbandi
Position
Resident of orthontics department
Other areas of specialty/work
Street address
Tehran ,qods street, tehran univercitu of medical sciences, faculty of dentistry
City
Teharn
Postal code
Phone
+98 21 8338 4204
Fax
Email
mmahmoudzadeh@razi.tums.ac.ir
Web page address
Person responsible for scientific inquiries
Contact
Name of organization / entity
Tehran university of medical sciences
Full name of responsible person
Dr. Mohammadhashem Hosseini
Position
Assistant proffessor , orthodontics department
Other areas of specialty/work
Street address
Faculty of dentistry, Tehran univercitu of medical sciences, Gods street
City
Tehran
Postal code
Phone
+98 21 8338 4204
Fax
Email
dr.hossaini@yahoo.com
Web page address
Person responsible for updating data
Contact
Name of organization / entity
Full name of responsible person
Position
Other areas of specialty/work
Street address
City
Postal code
Phone
Fax
Email
Web page address
Sharing plan
Deidentified Individual Participant Data Set (IPD)