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Evaluation of dental office bleaching sensitivity with bleaching gel with and without desensitizing agent

Evaluation of tooth sensitivity after in office dental bleaching applying whitening gel with and without desensitizing agent - randomized clinical trial, triple blind

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-4tkys8
Enrollment
Unknown
Registered
2017-01-18
Start date
2016-11-15
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dentin Sensitivity. Tooth Discoloration.

Interventions

Control group: 60 patients with dental discoloration will receive the whitening gel, which will be 35% hydrogen peroxide (Whiteness HP AutoMixx, FGM, Joinville, Brazil), without the desensitizing acti
Other
E06.420.750

Sponsors

Universidade Estadual de Ponta Grossa
Lead Sponsor
Universidade Estadual de Ponta Grossa
Collaborator

Eligibility

Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: Patients with good general health will be included; Age between 18-50 years of age; Good oral hygiene; Absence of caries in the anterior and inferior teeth; Absence of palatal and vestibular restorations; Upper canine with A2 or darker shading, which will be evaluated with Vita Classical scale (VITA Classical Shade, Vita Zahnfabrik, Bad Säckingen, Germany).

Exclusion criteria

Exclusion criteria: Patients will be excluded: undergoing previous bleaching procedures; That have restorations on the anterior superior teeth; Who have canal treatment in the anterior teeth; Pregnant and / or breastfeeding; With severe internal discoloration (tetracycline, spots, fluorosis, non-vital teeth); Parafunctional habits such as bruxism; Or any other pathology that may cause sensitivity

Design outcomes

Primary

MeasureTime frame
Expected outcome: Number of patients that report spontaneous pain in any moment of the bleaching protocol and up to 48 h 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 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).—

Secondary

MeasureTime 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.—

Countries

Brazil

Contacts

Public ContactAlessandra Reis

Universidade Estadual de Ponta Grossa

reis_ale@hotmail.com+55 (45) 3220 3740

Outcome results

None listed

Source: REBEC (via WHO ICTRP)