Evaluation of the Effect of Fluoride and Laser Application on the Prevention of Sensitivity in Bleached Teeth

Universidade Federal do Para

Status and phase: Completed; Phase 1

Conditions: Dentin Sensitivity

Treatments: Drug: In-office dental bleaching; Drug: 1.1% Sodium Fluoride; Device: Low Level Laser Therapy

Study type: Interventional

Funder types: Other

Identifiers

NCT03044171

UFPara-001

Details and patient eligibility

About

To investigate the effects of desensitizing agents on the dental bleaching process, testing the hypothesis that they may prevent dental sensitivity.

Full description

The objective of this double blind, randomized and controlled clinical study, was to evaluate the efficacy of 1.1% sodium fluoride associated with LLLT (Low Level Laser Therapy) on teeth that were exposed to 35% hydrogen peroxide during 4 weeks of bleaching treatment. Methods: 25 volunteers were evaluated through the split-mouth model, where the hemiarcates were ranzomized and later allocated in one of the experimental groups: G-FLUOR+LASER - constitutes the group treated with LLLT + 1.1% sodium fluoride; and G-FLUOR - constitutes the group treated with placebo + 1.1% sodium fluoride .

Enrollment: 25 patients

Sex: All

Ages: 18 to 25 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Absence of active carious lesions;
• Good oral hygiene;
• Do not present hypersensitivity;
• Do not smoke;
• Not being pregnant.

Exclusion criteria

• Presence of periodontal disease;
• Presence of cracks or fractures;
• Presence of restorations and prostheses;
• Presence of gastroesophageal dysfunction;
• Patients with severe internal dental dimming.

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Double Blind

---

25 participants in 2 patient groups

G-FLUOR+LASER

Experimental group

Description:

The corresponding hemiarcade received the application of Low Level Laser Therapy as a desensitizing treatment prior to in-office dental bleaching, followed by the application of 1.1% sodium fluoride after dental bleaching.

Treatment:

Device: Low Level Laser Therapy

Drug: 1.1% Sodium Fluoride

Drug: In-office dental bleaching

G-FLUOR

Experimental group

Description:

The correspondent hemiarcade received only the positioning of the inactive laser tip (placebo), prior to in-office dental bleaching, followed by the application of 1.1% sodium fluoride as a desensitizing treatment after dental bleaching

Treatment:

Drug: 1.1% Sodium Fluoride

Drug: In-office dental bleaching