The effects of a clinically feasible application of low-level laser therapy on the rate of orthodontic tooth movement: A triple-blinded randomized controlled clinical trial.

Not Applicable

Completed

• Conditions: Rate of orthodontic tooth movement; Alternative and Complementary Medicine - Other alternative and complementary medicine; Oral and Gastrointestinal - Normal oral and gastrointestinal development and function

• Registration Number: ACTRN12619001237178
• Lead Sponsor: niversity of Sydney

Brief Summary

o significant differences were detected in the amount of tooth movement, anchorage loss or canine rotation between the sham or LLLT groups with 4-weekly application of LLLT. Over the 12-week period, the laser group averaged in total 2.55 ± 0.73mm of tooth movement and the control group 2.30 ± 0.86mm. There was a difference of 0.25mm between the groups which was not significant.

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Completion: 2019-04-12
• Study Start: 2019-09-06
• Last Update Posted: 30 September 2019

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 21

Inclusion Criteria

Patients requiring extraction of maxillary first premolars and canine retraction with moderate anchorage as part of their orthodontic treatment. These patients required a minimum of 3mm space after initial alignment for canine retraction.

Exclusion Criteria

(1) patients with medical conditions or medications affecting the development or structure of teeth, alveolar bone or rate of tooth movement,
(2) patients with craniofacial anomalies,
(3) patients not in the permanent dentition, or with dental anomalies or missing teeth,
(4) patients with previous dental treatment of the maxillary canines,
(5) patients with previous orthodontic treatment,
(6) patients with a history of trauma, bruxism or parafunction and
(7) patients with a past or present history of periodontal disease.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
To investigate the effect of 4-weekly applications of LLLT on the amount (millimeters) of tooth movement when 150-gram distalization forces are applied to maxillary canines as measured on digital study casts using the Orthoanalyzer program[Primary timepoint was T3 (12 weeks). <br>The assessed timepoints were: <br>At start of intervention (T0),<br>at 4 weeks post commencement of trial (T1),<br>at 8 weeks post commencement of trial (T2)<br>and at 12 weeks post commencement of trial (T3) [primary timepoint].]

Secondary Outcome Measures

Name	Time	Method
Differences in anchorage loss (millimeters) between control and LLLT groups. <br>Anchorage loss is measured on digital study casts on the Orthoanalyzer program from an occlusal view from the distal of the second premolar to the most mesial point of the third palatal rugae via the mid saggital plane. [At start of intervention (T0), <br>and at 12 weeks post commencement of trial (T3)];Differences in canine rotation (degrees) between control and LLLT groups. <br>Canine rotation is measured on digital study casts on the Orthoanalyzer program with reference to the occlusal plane ( set from the most occlusal tip of the second molars to the most incisal tip of the central incisors). On this view, canine rotation was calculated by the angle formed from the line created from the mesial and distal contact points of the maxillary canine to the mid saggital plane. [At start of intervention (T0), <br>and at 12 weeks post commencement of trial (T3)]