Effect of 1.5% Potassium Oxalate on the Control of Tooth Sensitivity and Color Change After Home Bleaching: a Randomized, Placebo-controlled Clinical Study
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Universidade Federal do Para
- Enrollment
- 50
- Locations
- 2
- Primary Endpoint
- dental color assessment
Study Overview
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.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Factorial
- Primary Purpose
- Treatment
- Masking
- Double (Participant, Outcomes Assessor)
Eligibility Criteria
- Ages
- 18 Years to 29 Years (Adult)
- Sex
- All
- Accepts 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.
Outcomes
Primary Outcomes
dental color assessment
Time Frame: 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.
dentin sensitivity
Time Frame: 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.
Secondary Outcomes
No secondary outcomes reported
Investigators
Cecy Martins Silva
clinical professor
Universidade Federal do Para