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NCT03514290

Effect of Low-level Laser Therapy on Post-bleaching Sensitivity and Color Change

Completed NA Last updated 2 May 2018
What this trial tests

NA trial testing Low-lever laser in Tooth Bleaching in 21 participants. Completed in 30 September 2016.

Timeline
11 July 2016
Primary endpoint
8 August 2016
30 September 2016

Quick facts

Lead sponsorUniversidade Federal do Para
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designcrossover
Maskingdouble
Primary purposetreatment
Enrollment21
Start date11 July 2016
Primary completion8 August 2016
Estimated completion30 September 2016
Sites1 location across Brazil

Drugs / interventions tested

Conditions studied

Sponsor

Universidade Federal do Para — full company profile →

Who can join

Adults 18 to 30, any sex, with Tooth Bleaching or Low-level Laser Therapy. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Objective: The objective of this clinical study was to evaluate low-level laser (LLL) therapy in tooth sensitivity and in effecting color change after in-officer bleaching treatment across three weeks of treatment. Methods: Twenty-one volunteers were evaluated through the split-mouth model, so that the right and left maxillary/mandibular quadrants were randomized and allocated to one of two groups: GPLACEBO - the laser tip was positioned without the emission of light (placebo effect) + tooth bleaching with 35% hydrogen peroxide (HP); GLASER - treated with LLL + tooth bleaching with 35% HP. To assess tooth sensitivity, a modified visual analogue scale (VAS) was used after an evaporative stimulus (stimulated pain) and a daily pain questionnaire (unstimulated pain) was also applied. A spectrophotometer was used to measure the color. Three bleaching sessions were performed, with intervals of 7 days. Sensitivity results were tested using Friedman test for intra-group evaluation and Wilcoxon test for inter-group evaluation and ANOVA for color change.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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