Effectiveness of nano-calcium phosphate paste on sensitivity during and after bleaching: a randomized clinical trial
Braz. oral res. (Online)
;
29(1): 1-7, 2015. tab, ilus
Article
in English
| LILACS
| ID: lil-777205
ABSTRACT
The study aimed to evaluate the effectiveness of in-office bleaching and associated tooth sensitivity on application of nano-calcium phosphate paste as desensitizing agent. Bleaching was performed with 35% hydrogen peroxide gel in 40 patients who were randomly divided into placebo and nano-calcium phosphate paste groups. Bleaching efficacy (BE) was evaluated using a value-oriented Vita shade guide. Tooth sensitivity was recorded using a numeric rating scale (0–4) during bleaching and up to 48 h after each session. The primary outcome of absolute risk of tooth sensitivity was compared using the Fisher’s exact test (α = 0.05). The intensity of tooth sensitivity and the efficacy of in-office bleaching were also statistically evaluated. No significant differences in absolute risk and intensity of tooth sensitivity were detected between the groups (p = 1.0 and p = 0.53, respectively). BE was also found to be similar between the groups (p = 0.67). Although the use of a nano-calcium phosphate paste associated with fluoride and potassium nitrate did not influence the whitening outcome, but it also did not reduce bleaching-induced tooth sensitivity.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Tooth Bleaching
/
Calcium Phosphates
/
Potassium Compounds
/
Dentin Sensitivity
/
Dentin Desensitizing Agents
/
Tooth Bleaching Agents
/
Hydrogen Peroxide
/
Nitrates
Type of study:
Controlled clinical trial
/
Diagnostic study
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
English
Journal:
Braz. oral res. (Online)
Journal subject:
Dentistry
Year:
2015
Type:
Article
/
Project document
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual de Ponta Grossa/BR
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