LIBRARY Dental fillings. Coloured dental X-ray showing fillings in an upper molar tooth. This "bite-wing" X-ray of the side of the mouth shows the crowns of the upper and lower molar teeth. A tooth (at upper centre) has two dark fillings. Amalgam,a powdered alloy consisting of silver,tin,copper and zinc mixed with mercury,is usually used for back teeth fillings. Dental fillings are necessary when a tooth has become chipped or decayed due to dental caries. The dental pulp of each tooth,containing blood vessels and nerves,is coloured pink | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Edward, Kenneth / Biografx |
Taille de l’image : | 3180 px × 2194 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|