Tooth discoloration
Conditions
Interventions
It will be a non-randomized, controlled clinical trial with participant blinding and a parallel design. A total of 120 participants will be selected and divided into (n = 40): patients without cracks
patients with at least two longitudinal cracks on the enamel surface on the buccal face of the eight anterior teeth (from canine to canine) without a protective gingival barrier
patients with at least two longitudinal cracks on the enamel surface on the buccal face of the eight anterior teeth with a protective gingival barrier. The bleaching procedure will be performed using
Sponsors
Universidade Estadual de Ponta Grossa
Universidade Estadual de Ponta Grossa
Eligibility
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: Age between 18 and 60 years; good general and oral health; vital healthy teeth; minimum color A2; agree and sign the informed consent form (TCLE)
Exclusion criteria
Exclusion criteria: Bleaching procedure previously; previous dental sensitivity; dental prosthesis; fixed orthodontic appliance; restorations in the anterior superior teeth; endodontic treatment on anterosuperior teeth; gingival recessions; teeth stained by tetracycline or fluorosis; continuous use of medications; pregnant or lactating women; bruxism; smokers
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| It’s expected to observe the absolute risk of dental sensitivity. Data will be collected using the VAS (0-10). The percentage of patients reporting dental sensitivity will be considered the absolute risk of dental sensitivity | — |
Secondary
| Measure | Time frame |
|---|---|
| It's expected to observe the intensity of dental sensitivity, assessed through patient-reported records using the VAS (0-10). Values will be presented as mean and standard deviation;It is expected to find a difference in color between the baseline condition and 1 month after bleaching, assessed using the Vita Classical and Vita Bleachedguide shade guides, as well as the Vita Easyshade spectrophotometer. Data will be presented as means and standard deviations;It is expected to observe aesthetic self-perception. It will be assessed using the Orofacial Esthetic Scale (OES) before and after completion of the procedure. Values will be presented as mean and standard deviation;It is expected to observe the impact of oral health on quality of life, assessed using the Brazilian version of the short-form Oral Health Impact Profile (OHIP-14) which contains 14 questions, before and after completion of the whitening procedure. Values will be presented as mean and standard deviation | — |
Countries
BR
Contacts
Public ContactTaynara Carneiro
Universidade Estadual de Ponta Grossa
Outcome results
None listed