Human Enamel
Conditions
Interventions
1:Bleaching agent A,gel,15mg,The bleaching gel will be put onto the surface of the samples 8 hours in a humid atmosphere at 37? every day, then wash away the gel. After that, the samples will be store
Group 2:Bleaching agent B, gel, 15mg, The bleaching gel will be put onto the surface of the samples 8 hours in a humid atmosphere at 37 degree C every day, then wash away the gel. After that, the samp
Group 3:Bleaching agent C, gel, 15mg, The bleaching gel will be put onto the surface of the samples 8 hours in a humid atmosphere at 37 degree C every day, then wash away the gel. After that, the samp
Group 4:Bleaching agent C, gel, 15mg, The bleaching gel will be put onto the surface of the samples 8 hours in a humid atmosphere at 37 degree C every day, then wash away the gel. After that, the samp
Group 5:Bleaching agent A, gel, 15mg, The bleaching gel will be put onto the surface of the samples 8 hours in a humid atmosphere at 37 degree C every day, then wash away the gel. After that, the samp
Group 6:Bleaching agent B, gel, 15mg, The bleaching gel will be put onto the surface of the samples 8 hours in a humid atmosphere at 37 degree C every day, then wash away the gel. After that, the samp
Group 7:Bleaching agent C, gel, 15mg. The bleaching gel will be put onto the surface of the samples 8 hours in a humid atmosphere at 37 degree C every day, then wash away the gel. After that, the samp
Group 8:No gel will be put onto the surface of the samples, all samples will be stored in artifi
Sponsors
School and Hospital of Stomatology, Wuhan University
Eligibility
Sex/Gender
All
Age
18 Years to 30 Years
Inclusion criteria
Inclusion criteria: 1.Aged 18 to 30 years old; 2. Normal saliva flow; 3. Absence of dental caries and/or periodontal disease; 4. Willing to perform bleaching treatment following the research schedule
Exclusion criteria
Exclusion criteria: 1. Use of orthodontic appliances; 2. Presence of fixed or removable denture; 3. Smokers; 4. Dentine sensitivity.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Surface morphology;Fracture toughness;Microhardness; | — |
Countries
China
Contacts
Public ContactTao Jiang
Outcome results
None listed