Dentin Sensitivity Tooth Bleaching
Conditions
Interventions
90 volunteers included in the research will be submitted to at home bleaching, using 7,5% Hydrogen Peroxide gel. There will be three intervention groups, with 30 participants each, in A group partici
Sponsors
Universidade Federal do Amazonas
Universidade Federal do Amazonas
Eligibility
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: Age 18 to 40; two central incisors or canine with a dark tooth coloration; the six upper anterior teeth free of restorations; healthy enamel
Exclusion criteria
Exclusion criteria: Volunteers with orthodontic aplliance; severe crowding; presence of intrinsic stains (tetracycline staining; fluorosis; pulped teeth); under use of anti-inflammatory drugs; smokers; etilists; pregnant or lactating women; people who have already undergone bleaching procedure; participants with bruxism; participants with exposed dentin in the upper anterior teeth; non-carious cervical lesions.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expected outcome 1: It is expected to evaluate the bleaching efficacy of 6% hydrogen peroxide gel applied for 15, 30, and 60 minutes daily through tooth color change measured by ?E obtained by spectrophotometry and by changes in the Vita Classical and Vita Bleachedguide shade scales. It is expected that the different application times will present similar bleaching efficacy;Observed outcome 1: Tooth color change was observed in all evaluated groups (PH15, PH30, and PH60), measured by the Whiteness Index for Dentistry (WID), with no statistically significant difference among application times (p=0.3058), indicating similar bleaching efficacy among the protocols | — |
Secondary
| Measure | Time frame |
|---|---|
| Expected outcome 4: It is expected to evaluate the psychosocial impact of dental bleaching using the PIDAQ questionnaire, considering the domains of dental self-confidence, psychological impact, social impact, and aesthetic concern;Observed outcome 4: All groups showed improvement in the PIDAQ domains (dental self-confidence, psychological impact, social impact, and aesthetic concern), with no statistically significant difference among the protocols (p>0.05), indicating a similar positive psychosocial impact among application times;Expected outcome 2: It is expected to evaluate tooth sensitivity associated with bleaching using 6% hydrogen peroxide at different application times through self-report using a 5-point Likert Scale and a Visual Analog Scale, considering sensitivity intensity and absolute risk among groups;Observed outcome 2: Tooth sensitivity was predominantly classified as mild among participants (PH15: 38.71%; PH30: 30.00%; PH60: 31.03%), with no statistically significant difference among groups (p=0.8826), indicating similar behavior among the protocols;Expected outcome 3: It is expected to evaluate the time required for participants to achieve satisfaction with tooth color after bleaching treatment, comparing the different application times;Observed outcome 3: The time required to achieve satisfaction with tooth color was similar among groups (PH15: 16.48 ± 8.19 days; PH30: 17.84 ± 11.41 days; PH60: 18.14 ± 9.19 days), with no statistically significant difference (p=0.510) | — |
Countries
BR
Contacts
Public ContactLaís Mota
Universidade Federal do Amazonas
Outcome results
None listed