Efficacy of Laser Application in Dental Bleaching

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-09-05

Study Completion Date

2015-09-25

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Objective: To establish the efficacy of laser application with chemical treatment in dental bleaching compared to chemical treatment alone.

Methods: The investigators conducted a randomized controlled trial (RCT), single blind (evaluator), in 24 patients randomized to laser and chemical intervention (12) or chemical intervention aloe (12). The commercial products used were Whiteness Hp 35% Hydrogen Peroxide and the LASER of DCM Equipments. The trial outcome measures were obtained using the Vita EasyShade Spectrophotometer and the International CIELCh system. To stablish differences before vs. after treatments and between groups, the T test and chi2 tests were applied.

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

Clinical Effectiveness of In-office Bleaching Activated With a LED/Laser Device

NCT01231243

Tooth Discoloration

COMPLETED PHASE4

Effect of Gel Renewal During In-office Dental Bleaching

NCT04013659

Tooth Bleaching

UNKNOWN PHASE1

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

NCT03514290

Tooth Bleaching Low-level Laser Therapy Dentin Sensitivity +1 more

COMPLETED NA

In-office and At-home Tooth Bleaching Using Low Concentration Peroxides.

NCT02816593

Discolored Teeth

COMPLETED NA

Efficacy and Safety Assessment of Experimental Bleaching Agents

NCT06802614

Tooth Discoloration Dentin Sensitivity Patient Satisfaction

NOT_YET_RECRUITING NA

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

New technologies continue to be launched in the field of dental esthetics, especially for whitening, and many products advertise their efficacy. One new approach is the use of LASER technology which has been purported to be the most powerful font light for bleaching Diverse studies by different designs find different efficacies for LASER whitening Randomized clinical trials (RCT) are needed for the most rigorous confirmation of efficacy. RCT are able to control for characteristics that can cause bias, including factors related to dental care such as diet and cleaning behavior after the bleaching procedure. The investigators therefore conducted an RCT to make a side by side comparison of a LASER whitening technique with chemical bleaching versus chemical bleaching without LASER.

Intervention: After the patient was informed and sign the consent; a dental prophylaxis was done. Three days later the bleaching procedure started following the same protocol regarding to the time and product used (35% Hydrogen Peroxide Whitening HP, 40 minutes divided in two phases of 20 minutes each one) from premolar to premolar in superior and inferior teeth. The difference was that one of the intervention groups used the Laser for ten minutes (starting at the minute 5) and the other did not.. The Laser used was the Whitening Lase II (DCM EQUIPMENTS).

The measure of the color was done to the superior canines by just one evaluator in three stages: before bleaching (baseline), 15 minutes after bleaching, and three days after. It was done with the Vita Easyshade Spectrophotometer.

The dental sensitivity also was asked at the three time points; however, as an exclusion criterion the level had to be 0 to be entered into the study.

All the patients received verbal and written instructions about eating and cleaning behavior. Cleaning materials for the three days after procedure were given.

As the clinical endpoint, the difference in color was calculated using the international accepted system CIELCh (11,18-19). The formula is ∆E\* = \[(∆L\*)2 + (∆C\*)2 + (∆h\*)2\] ½; were L is Luminosity, C is Chroma and h is Hue.

A verbal numeric scale was used to determine the dental sensitivity with values from 0 to 3. The evaluator used the water and air from the dental chair syringe. The patient reports 0 for no sensitivity; 1 for slight sensitivity, 2 for moderate sensitivity, and 3 for severe sensitivity.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Tooth Discoloration

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The investigators conducted a Randomized controlled trial (RCT) to study the effect of LASER in dental bleaching in 24 patients in Paraguay in 2015.

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

It was single blind; as the evaluator did not know what intervention the patient was assigned.

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Laser Application

35% Hydrogen Peroxide (Whitening HP, FGM SC Brazil) 40 minutes divided in two phases of 20 minutes each one (5 minutes colocation, 10 minutes Laser Application and 5 minutes moving the product) from premolar to premolar in superior and inferior teeth. Experimental

Group Type EXPERIMENTAL

Laser Application for Dental Bleaching

Intervention Type DEVICE

The Laser used was the Whitening Lase II (DCM EQUIPMENTS).

No Laser Application

35% Hydrogen Peroxide (Whitening HP FGM SC Brazil), 40 minutes divided in two phases of 20 minutes each one (5 minutes colocation, 10 minutes waiting and 5 minutes moving the product) from premolar to premolar in superior and inferior teeth. No Laser Application No Intervention

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Laser Application for Dental Bleaching

The Laser used was the Whitening Lase II (DCM EQUIPMENTS).

Intervention Type DEVICE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patients who wanted to bleach or whiten their teeth.

Exclusion Criteria

* Patients who have a color less than A2 according to the Vita Scale
* Patients with dental sensitivity
* caries or restorations
* periodontal disease
* dental abfraction or attrition
* pregnant women, smokers
* patients with orthodontics
* nauseous reflects
* patients who did not wish to sign the consent.

Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes