Group | Presence or absence of change in tooth color | Application site | Treatment |
---|---|---|---|
1 | Presence | Maxillary and mandibular anterior teeth | Placebo gel without hydrogen peroxide - Formula e Açao – Sao Paulo/SP |
- without activating source | |||
2 | Presence | Maxillary and mandibular anterior teeth | 6.0% hydrogen peroxide –White Class with Calcium, FGM – Joenville/SC |
- without activating source | |||
3 | Presence | Maxillary and mandibular anterior teeth | 7.5% hydrogen peroxide –White Class with Calcium – FGM – Joenville/SC |
- without activating source | |||
4 | Presence | Maxillary and mandibular anterior teeth | 7.5% hydrogen peroxide – Oral-B 3D White, Oral-B - EUA |
- without activating source |