Tooth discoloration
Conditions
Interventions
This is a four-arm, double-blind, randomized controlled clinical trial. The objective of this clinical study will be to evaluate different dental whitening protocols associated with violet LED light (
G2 - hybrid technique using violet LED light (15 min, 10 min on, and 5 min without light) + 35% hydrogen peroxide-based whitening gel (1 x 15 min + light, 4 sessions, 1 session/week) - total of 30 min
G3 - 35% hydrogen peroxide-based whitening gel (1 x 15 min, 4 sessions, 1 session/week)
G4 - hybrid technique using violet LED light (10 min, 7 min on, and 3.5 min off) + 35% hydrogen peroxide-based whitening gel (1x 10 min + light, 4 sessions, 1 session/week) – total of 20 min of whiten
Sponsors
Faculdade de Odontologia da Universidade de São Paulo (Fousp)
Faculdade de Odontologia da Universidade de São Paulo (Fousp)
Eligibility
Age
18 Years to 30 Years
Inclusion criteria
Inclusion criteria: Minimum age of 18 years and maximum age of 30 years; presence of all dental elements, without aesthetic restorations or caries lesions in the upper and lower anterior teeth; and participants with canine tooth color of A3 or darker, according to the VITA® Classical Color Scale
Exclusion criteria
Exclusion criteria: Presence of any type of systemic pathology; presence of periodontal disease; systematic use of tobacco and alcoholic beverages; participants with teeth discolored by tetracycline, fluorosis, endodontic treatment; participants with a history of self-reported tooth sensitivity; pregnant or breastfeeding female participants; presence of crowns or restorations on the anterior teeth (15 to 25 and 35 to 45); and participants with bruxism or undergoing treatment with medication with anti-inflammatory, analgesic and/or antioxidant action
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| It is expected to observe the color change of the tooth. | — |
Secondary
| Measure | Time frame |
|---|---|
| It is expected to observe dental sensitivity and changes in enamel surface morphology. | — |
Countries
Brazil
Contacts
Public ContactPatricia Freitas
Faculdade de Odontologia da Universidade de São Paulo (Fousp)
Outcome results
None listed