tooth discolouration
Conditions
Interventions
two tooth bleaching sessions in 22 patients, of approximately 50 minutes duration each and a one week interval between them, using 20% hydrogen peroxide (HP Blue, FGM, Joinville - SC, Brazil) accordin
Other
E06.420.750
Sponsors
Universidade Federal do Amazonas
Universidade Federal do Amazonas
Eligibility
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: Being aged 18 years old or older, having good general and oral health, having anterior maxillary teeth free of cavity or restorations on buccal surface, having maxillary central incisors shaded on C2 ou darker assessed by Vita Classic (Vita Zahnfabrik, Bad Säckingen, Alemanha).
Exclusion criteria
Exclusion criteria: Participants with orthodontic devices, pregnant or lactating, severe internal tooth discolouration (tetracycline, fluorosis or pulpal death), bruxism or other pre-existent pathologies that may cause spontaneous tooth pain (gingival recession or dentin exposure), non-carious cervical lesions, anterior restorations or who were using antioxidant or antiinflammatory drugs.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Tooth bleaching efficacy, evaluated by subjective (Vita Classical and Vita Bleachedguided) and objective (Easy Shade Spectrophotomer) methods, at the baseline and 30 days after the second tooth bleaching session, using SGU (Shade Guide Units) and Delta E (detected color variation by spectrophotometer). | — |
Secondary
| Measure | Time frame |
|---|---|
| Tooth bleaching sensitivity measured with a 0-10 Visual Analogue Scale (VAS). | — |
Countries
Brazil
Contacts
Public ContactLuciana da Silva Martins
Universidade Federal do Amazonas
Outcome results
None listed