Dentin Sensitivity
Conditions
Brief summary
This double-blind randomized clinical trial evaluated the effect of 1.5% potassium oxalate on pain sensitivity control and color change after home tooth whitening. It also evaluated the influence of potassium oxalate on health-related quality of life (HRQOL) and on the degree of patient satisfaction after bleaching treatment.
Interventions
OTHERCarbamide Peroxide (PC) 22%) + placebo gel
Application of one drop of Polanight bleaching agent (SDI, SP, Brazil) on each corresponding tooth in a tray that was used for 45 minutes a day, for a period of twenty-one days. After the bleaching treatment, the participants were instructed to wash the trays under running water and dry them. The volunteers were instructed to apply a small amount of placebo gel, without active ingredient, with color, texture and odor similar to 1.5% oxalate gel (Painless, BM4, SC, Brazil) in the spaces related to the vestibular portions of the teeth trays, which were used for 10 minutes.
OTHERCarbamide Peroxide (PC) 22%) + Potassium Oxalate gel 1.5%
Application of one drop of Polanight bleaching agent (SDI, SP, Brazil) on each corresponding tooth in a tray that was used for 45 minutes a day, for a period of twenty-one days. After the bleaching treatment, the participants were instructed to wash the trays under running water and dry them with absorbent paper. The volunteers applied a small amount of 1.5% potassium oxalate gel (Painless, BM4, SC, Brazil) in the spaces relative to the vestibular portions of the tray's teeth, which were used for 10 minutes.
Sponsors
Universidade Federal do Para
Study design
Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 29 Years
Healthy volunteers
Yes
Inclusion criteria
* individuals aged 18 to 29 years of both sexes with chroma greater than A2 in the upper incisors and canines, in the Vita Classical color scale; * absence of active caries lesions * patients who had never undergone bleaching therapy; * good oral hygiene and no hypersensitivity to tactile and evaporative stimuli through the Visual Analog Pain Scale;
Exclusion criteria
* patients undergoing fixed orthodontic treatment; * patients with darkened non-vital teeth and/or with extensive restorations in molars; * presence of cracks or fractures; * patients allergic to the product, with the presence of gastroesophageal disorders and with dentinal exposure in anterior and/or posterior teeth.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| dentin sensitivity | 21 days after the start of the whitening treatment | evaluation of dentinal sensitivity during treatment through a daily questionnaire, using a visual analogue scale with values from 0 to 10, with higher values indicating a worse level of pain. |
| dental color assessment | 21 days and 1 month after the bleaching treatment | Color evaluation was performed using the EasyshadeAdvanced spectrophotometer (Vita-Zahnfabrik, GE, Germany), using the CIE L\*a\*b\* system. |
Countries
Brazil
Outcome results
None listed