Mottled teeth
Conditions
Interventions
It will be a mouth-split study to compare the effectiveness of two hydrogen peroxide gels with different storage temperatures used in office dental whitening.
Experimental group: For the 30 volunteer
Other
E06.420.750
E06.095.585
E06.186.104
Sponsors
CESCAGE - Centro de Ensino Superior dos Campos Gerais
CESCAGE - Centro de Ensino Superior dos Campos Gerais
Eligibility
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: Healthy volunteers; Both genders; Age between 18 and 40 years, with upper and lower anterior teeth with vitality; Adequate oral hygiene; With central incisors that should be A2 or darker in color according to the Vita scale (VITA classical, VITA Zahnfabrik, Bad Säckingen, Germany)
Exclusion criteria
Exclusion criteria: Voluntary smokers; Pregnant and lactating women; Patients with teeth showing staining caused by tetracycline; Fluorosis; Hyperplasia; endodontic treatment; Presence of restorations in the eight upper and lower anterior teeth; Previous dental sensitivity; Parafunctional habits; Cervical lesions (abrasion, erosion and abfraction), periodontal disease.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expected outcome: The color difference between the initial condition and 1 month after bleaching will be assessed using the Vita Classical and Vita Bleachedguide color scales and also with the Vita Easyshade spectrophotometer. The data will be presented in the form of means and standard deviations. No interference is expected in the results of the bleaching treatment in any of the Groups.;Outcome found: Effective bleaching occurred in both groups and there was no interference of storage temperature in the results of bleaching treatment in either group. At the end of the bleaching protocol, a variation of approximately 6 SGUs (shade guide units) was found for both groups with Vita Classical. 8 SGUs for the Vita Bleachedguide scale and ?E ranged by approximately 12 units, meaning significant clinical bleaching. The results of the subjective evaluation (Vita Clássica: p = 0.73, Vita Bleachedguide: p = 1.00) and the objective evaluation with the spectrophotometer (p = 1.00) corresponded to the hypothesis of equality between groups after bleaching. The mean and standard deviation show that there was no statistical difference in color for both groups, regardless of the method used | — |
Secondary
| Measure | Time frame |
|---|---|
| Expected outcome: The intensity of tooth sensitivity will be assessed using the numeric 5-point scale (NRS 0-4) and the visual analogue scale (VAS 0-10) and will be presented as means and standard deviations in different periods (during dental bleaching, up to 1 h, 1 h to 24 h and 24 h to 48 h post-bleaching);Outcome Found: There was a presence of sensitivity in all groups, but it was not interfered with in the storage temperature in the results of the bleaching treatment in any of the groups. Regarding the absolute risk of dental sensitivity, the significant difference between the groups was not observed, as observed (p = 0.29). The relative risk, along with a 95% confidence interval (1.1333 [95% CI] 0.7045 - 1.82), is also evidence that storage temperature is not an effect on a reduction in sensitivity. Data on single-tooth sensitivity as two pain scales were statistically similar (p> 0.05). | — |
Countries
Brazil
Contacts
Public ContactBruna Bittencourt
Universidade Estadual de Ponta Grossa
Outcome results
None listed