Dentin sensitivity
Conditions
Interventions
It will be a parallel-type study.
Ninety-two patients will be divided into two groups (n=46) according to the bleaching protocol that will be performed:
Experimental group (G30): forty-six patients w
Other
E06.420.750
Sponsors
Universidade Estadual de Ponta Grossa
Universidade Estadual de Ponta Grossa
Eligibility
Age
18 Years to 50 Years
Inclusion criteria
Inclusion criteria: Volunteers over 18 years old in good general and oral health; who have healthy vital teeth with color A2 or darker according to the Classical Vita scale; and to agree with the free and informed consent form.
Exclusion criteria
Exclusion criteria: Volunteers who have already undergone dental bleaching; who have dental prosthesis or visible enamel cracks; who are pregnant or breastfeeding; a history of previous dental sensitivity; severe dental discoloration from pathologies or use of medications; fixed orthodontic appliance; and that are making continuous use medication that may reduce the sensitivity of the teeth.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expected outcome: Number of patients that report spontaneous pain in any moment of the bleaching protocol or post-bleaching, through self-report. This number will be presented as percentage of patients with tooth sensitivity and will be named absolute risk of tooth sensitivity.;Expected outcome: The intensity of tooth sensitivity will be evaluated through the records made by patients with the use of numerical scales of 5 points (NRS 0-4) and visual analogue scale VAS (0-10). Values are presented as mean and standard deviation for the different evaluated periods.;Expected outcome: There was no significant difference between the two groups in the number of participants who experienced tooth sensitivity during the bleaching treatment. ;Expected outcome: No significant difference in the intensity of tooth sensitivity between groups was observed in none of the pain scales. | — |
Secondary
| Measure | Time frame |
|---|---|
| Expected outcome: The difference in color between the baseline condition and 1 month post-bleaching will be assessed by Vita Classical and Bleachedguide Vita shade guide as well as with the Vita Easyshade spectrophotometer. The data will be presented as means and standard deviations.;Expected outcome: A higher whitening degree was observed in participants from the 120-min when color change was evaluated objectively. Participants from the 30-min group performed an extra week of bleaching. The four-week bleaching regimen with 30 min daily achieved the same bleaching efficacy of the three-week regimen for 120 min daily. | — |
Countries
Brazil
Contacts
Public ContactAlessandra Reis
Universidade Estadual de Ponta Grossa
Outcome results
None listed