Dental caries. Discolouration and cavities in the upper incisor teeth of a 45-year-old female patient,indicating dental caries. Dental caries is the decay and crumbling of the teeth. It is caused by the bacteria in plaque,a substance which covers the surface of unclean teeth. The bacteria break down sugar in the mouth,producing an acid which progressively destroys the teeth. A filling may be used to repair a decayed tooth,but in severe cases,root canal surgery or tooth extraction may be required | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Taranyan, Dr. Armen |
Bildgröße: | 5137 px × 3413 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |