Vital discolored tooth
Conditions
Interventions
None listed
Sponsors
Nihon University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: All study participants gave their informed consent to take part in this study. The inclusion criteria for this study were the possession of six vital front teeth, first premolars, and second premolars in the upper jaw without caries lesions, restorations, large cracks, or tooth sensitivity. In addition, the patients had to be at least 18 years old with a maxillary anterior shade between A2 and A3.5 (VITA classical A1-D4 shade guide).
Exclusion criteria
Exclusion criteria: The exclusion criteria were allergy to hydrogen peroxide, periodontal disease, poor oral hygiene, ongoing treatment for a serious, systemic, and chronic disease, pregnancy or breastfeeding, previous whitening treatment, severe tetracycline-induced discoloration (Feinman classification 3 and 4) or fluorosis (Dean's index 3-5), and any other conditions deemed unsuitable by the supervising dentist.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The changes in tooth color were evaluated using a dental spectrophotometer before and after in-office whitening. A visual analog scale (VAS) was used to express the pain intensity when participants felt tooth sensitivity during and up to 24 h after whitening. | — |
Countries
Japan
Contacts
Public ContactToshiki Takamizawa
Nihon University School of Dentistry Department of Operative Dentistry
Outcome results
None listed