Colored tooth
Conditions
Interventions
A:Left side of maxillary anterior teeth: deep bleaching technique
right side of deep bleaching technique: combined bleaching technique
B:Left side of deep bleaching technique: combined bleaching technique
right side of maxillary anterior teeth: deep bleaching technique
Sponsors
Guanghua College of Stomatology, Hospital of Stomatology, Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
20 Years to 28 Years
Inclusion criteria
Inclusion criteria: 1. Have all six maxillary anterior teeth with vital pulp; 2. Have no maxillary anterior teeth with more than 1/6 of their labial surface covered with a restoration; 3. Be willing to sign a consent form; 4. Be at least 18 years of age; 5. Be able to return for periodic follow-ups; 6. Be willing to refrain from the use of tobacco products during the study period; 7. Have 6 maxillary anterior teeth that are A2 or darker shade on the Vita Classic Shade Guide, and remeasured by a spectrophotometer.
Exclusion criteria
Exclusion criteria: 1. Have a history of any medical disease that may interfere with the study or require special considerations; 2. Have a history of allergy to hydrogen peroxide; 3. Have current or previous use of professionally applied or prescribed “in-office” or “at-home” whitening agents; 4. Have a gross pathology in the oral cavity (excluding caries); 5. Loe and Silness Gingival score greater than 1; 6. Pregnant or lactating women; 7. Tetracycline-stained teeth and dental fluorosis; 8. Presence or use of an orthodontic appliance on six maxillary anterior teeth.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ?E??a*??b*??L* & ?S; | — |
Contacts
Public ContactKe ZHAO
Outcome results
None listed