Stages of tooth decay, illustration

Numéro d’image : 13376780
Stages of tooth decay, illustration
Stages of tooth decay, cutaway illustration. Dental caries is the decay and crumbling of the teeth. It is caused by bacteria that form a biofilm called plaque. The bacteria break down sugar in the mouth, producing an acid that progressively destroys the teeth. At upper right the decay is confined to the outer layer of the tooth, the enamel (white). A left it has reached the inner layer of dentin (yellow). At upper centre it has penetrated the pulp (purple) at the core of the tooth, which contains the nerves and blood vessels. Small areas of decay can be treated with fillings. When tooth decay reaches the sensitive inner area, it produces the intense pain of a toothache. Treatment at this stage may require root canal work or even extraction.
Licence : Droits gérés
Crédit: Science Photo Library / Bavosi, John
Taille de l’image : 4554 px × 6074 px
Model Release : Non requis
Property Release : Non requis
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