Tooth care. Various pieces of equipment used to prevent tooth decay. At centre left are three toothbrushes which are used with toothpaste to scrub away food particles,bacteria (dental plaque) and the film of saliva (pellicle) from teeth. At centre is a white toothpaste dispenser. Toothpaste contains an abrasive substance which aids in teeth brushing; it sometimes also contains fluoride which provides protection against tooth decay although the mechanism is not understood. The mouthwash in the two jars (coloured,at right) kill plaque bacteria and freshen breath | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Victor Habbick Visions |
Bildgröße: | 5013 px × 4096 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |