MODEL RELEASED. Teeth whitening. Dentist using a laser to whiten a patient's teeth. The laser activates hydrogen peroxide that has been applied to the patient's teeth in a gel. The hydrogen peroxide bleaches the patient's teeth. Teeth can become stained by drinks,such as red wine or coffee,smoking,nerve degeneration or age. The effects can last up to 3 years | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Public Health England |
Bildgröße: | 3621 px × 2417 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |