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Acidity effect of whitening gel on the effectiveness and sensitivity of teeth after in office bleaching

Effect of pH of the bleaching gel in the effectiveness and tooth sensitivity after in office bleaching

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-3h6n6c
Enrollment
Unknown
Registered
2016-03-30
Start date
2014-06-02
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 bleaching

Interventions

It will be a study of split-mouth type to compare the tooth sensitivity and bleaching efficacy of two hydrogen peroxide gels with different pHs (acid pH [Pola Office, SDI] and the neutral pH [Pola Off
Other
E06.420.750

Sponsors

Centro de Ensino Superior dos Campos Gerais - CESCAGE
Lead Sponsor
Centro de Ensino Superior dos Campos Gerais - CESCAGE
Collaborator

Eligibility

Inclusion criteria

Inclusion criteria: Patients will be included in this clinical trial were men and women; who were in good general and oral health; were required to have six maxillary and mandibular anterior teeth without caries lesions or restorations; the right superior incisor should be shade A2 or darker as judged by comparison with a VITA Classical value-oriented shade guide (Vita Zahnfabrik, Bad Säckingen, Germany).

Exclusion criteria

Exclusion criteria: Patients will be excluded pregnant or lactating women; smokers; bruxism habits; severe internal tooth discoloration (tetracycline stains, fluorosis, pulpless teeth); gingival recessed; exposed dentine; who took anti-inflammatories, analgesics or antioxidants.

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.—

Secondary

MeasureTime frame
Expected outcome: The intensity of tooth sensitivity will be assessed using 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).;Expected outcome: The difference in color between the baseline condition and post-bleaching (1 week and 1 month) 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 - UEPG

reis_ale@hotmail.com+55 (42) 3220 3741

Outcome results

None listed

Source: REBEC (via WHO ICTRP)