Combined Dental Bleaching Protocols and Time Required to Achieve Satisfactory Color

André Luis Faria e Silva

Status and phase: Completed; Phase 4

Conditions: Tooth Discoloration

Treatments: Drug: Bleaching Agents

Study type: Interventional

Funder types: Other

Identifiers

NCT03514797

Combined bleaching

Details and patient eligibility

About

This parallel, randomized, and controlled clinical trial will assess the effect of a single prior session of in-office dental bleaching on time required to achieve satisfactory tooth color with at-home bleaching. Participants enrolled will randomly allocated to receive or not a single session of dental bleaching with 35% hydrogen peroxide applied for 45 min. Following, all participants will use customized trays filled with 10% carbamide peroxide for 1h per day until obtain satisfactory results. The primary outcome will be the number of days necessary to obtain satisfactory tooth color. Furthermore, tooth sensitivity and color changes measured with spectrophotometer will be assessed.

Enrollment: 26 patients

Sex: All

Ages: 18 to 40 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Good general and oral health;
• Upper canines darker than the tab 2.5M2 at VITA Bleachedguide 3D-MASTER® (Vita-Zahnfabrik, Bad Sackingen, Germany) scale.

Exclusion criteria

• Presence of non-treated caries or periodontal disease;
• Prior tooth hypersensitivity;
• Presence of gingival recession;
• Teeth with cracked enamel or any hypoplasia;
• Patients using oral removable or fixed orthodontic appliances;
• Patients were pregnant or breastfeeding.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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26 participants in 2 patient groups

Combined technique

Experimental group

Description:

A single session of in-office tooth bleaching will be performed with 35% hydrogen peroxide for 45 minutes. Following, the teeth will be further bleached with customized trays filled with 10% carbamide peroxide and used for 1h per day.

Treatment:

Drug: Bleaching Agents

Drug: Bleaching Agents

At-home bleaching

Active Comparator group

Description:

The teeth will be bleached only with customized trays filled with 10% carbamide peroxide and used for 1h per day.

Treatment:

Drug: Bleaching Agents

Drug: Bleaching Agents