Tooth Discoloration
Conditions
Keywords
Clear aligner treatment, Bleaching, Home bleaching
Brief summary
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.
Detailed 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.
Interventions
PROCEDUREIn-office bleaching system
As the whitening agent, an in-office bleaching system containing 35% hydrogen peroxide (Whiteness HP, FGM) was chosen. The gingiva was isolated using an isolation material (Opaldam, Ultradent Products Inc.), which was light-cured with a standard curing light. The whitening gel was applied to the labial surfaces of the maxillary incisors and canines with a 1mm thickness and left for 20 minutes. After cleaning the teeth with an aspiration tip, the whitening procedure was repeated.
PROCEDURELaser-assisted bleaching
Whitening was performed 10 days prior to treatment, with laser treatment applied without removing brackets in the fixed appliance group and without cleaning attachments in the aligner group. The laser was applied to the buccal surface of the teeth with a 1mm distance for 30 seconds in three applications. After a 10-minute rest, the laser procedure was repeated.
PROCEDUREHome-bleaching
The whitening trays were custom-made for the fixed appliance patients, and they used them for 2-4 hours each evening after brushing their teeth. In the transparent aligner group, whitening was done using the aligners worn for treatment.
OTHERControl
This group of patients did not undergo any whitening procedures.
Sponsors
TC Erciyes University
Ahmet Yağcı
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
16 Years to 30 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Tooth color measurement | up to 1,5 years | The screenshots of the scanning records taken at the beginning and end of the treatment were captured, and the L\*, a\*, b\* values were measured using Photoshop software. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| QLF(Quantitative light-induced fluorescence) Analysis Score | up to 1 years | Delta F (ΔF) - The percentage of fluorescence loss relative to a sound tooth |
Countries
Turkey (Türkiye)
Outcome results
None listed