Bleaching Procedures Performed During Treatment With Brackets and Clear Aligners

Ahmet Yağcı

Status: Completed

Conditions: Tooth Discoloration

Treatments: Procedure: Home-bleaching; Procedure: Laser-assisted bleaching; Procedure: In-office bleaching system; Other: Control

Study type: Interventional

Funder types: Other

Identifiers

NCT06716827

TDK-2023-12793

Details and patient eligibility

About

The aim of this study is to compare the effectiveness of different whitening methods used during orthodontic treatment with fixed appliances and clear aligners. It also aims to examine the effect of different whitening methods on white spot lesions and the color change they cause in the teeth.

Full description

During orthodontic treatment, if oral hygiene is not properly maintained or in long-term treatments, tooth discoloration may occur. In clear aligner treatment, failure to regularly clean the aligners or the consumption of staining foods and beverages while wearing the aligners can lead to staining and yellowing of the tooth surfaces.

The aim of this study is to compare the effectiveness of different whitening methods used during orthodontic treatment with fixed appliances and clear aligners. It also aims to examine the effect of different whitening methods on white spot lesions using quantitative light-induced fluorescence (QLF) and to evaluate the color changes in the teeth during the treatment process.

Enrollment: 56 patients

Sex: All

Ages: 16 to 30 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• No previous orthopedic or orthodontic treatment
• Mild or moderate malocclusion
• Non-smokers and non-alcohol consumers
• Consumes no more than 3 cups of tea or coffee per day
• Good oral hygiene and healthy periodontal tissues
• No cavities, restorations, pigmentation, or white spot lesions on the anterior teeth
• Chronological age between 16-30 years, regardless of bone age

Exclusion criteria

• Individuals requiring extraction-based treatment
• Individuals who have previously undergone whitening treatment
• Individuals with endogenous tooth discoloration
• Individuals with genetic tooth pigmentation
• Individuals in the mixed dentition phase

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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56 participants in 4 patient groups

Conventional

Experimental group

Description:

In this group, 14 patients (7 with fixed appliances and 7 with clear aligners) underwent conventional whitening procedures during the treatment process. As the whitening agent, an in-office bleaching system containing 35% hydrogen peroxide (Whiteness HP, FGM) was chosen.

Treatment:

Procedure: In-office bleaching system

Laser-assisted bleaching

Experimental group

Description:

In this group, 14 patients (7 with fixed appliances and 7 with clear aligners) underwent laser whitening with a 940 nm diode laser and a 35% hydrogen peroxide gel (Whiteness HP, FGM).

Treatment:

Procedure: Laser-assisted bleaching

Home bleaching

Experimental group

Description:

In the home whitening group, 14 patients (7 with fixed appliances and 7 with clear aligners) underwent a 14-day home whitening treatment during the treatment process using a 16% carbamide peroxide gel (Opalescence PF, Ultradent Products Inc., South Jordan, UT, USA).

Treatment:

Procedure: Home-bleaching

Control

Experimental group

Description:

The 14 patients randomly selected (7 with fixed appliances and 7 with clear aligners) served as the control group. No whitening procedures were performed on the patients in this group.

Treatment:

Other: Control