Decay on a slippery surface / flat.
Is a type of decay that most can be prevented and repaired, the slowest growth. A caries begins as a white spot where the bacteria dissolves the calcium of the email. This type of decay is usually started at the age of 20-30 years.
Rot holes and grooves.
Usually starts in the teen, the permanent teeth and grow rapidly. Formed on the back teeth, that is, in the narrow grooves on the surface of teeth to chew and the section dealing with the cheek teeth. this area difficult to clean because the curve is narrower than the hairs on your toothbrush.
Tooth root decay.
Starting as a bone-like tissue that wraps the root surface (cementum). Usually occurs in late middle age. Decay is often the case because the patient had difficulty in cleaning the tooth root area and because of the sugar-rich foods. Root decay is the most difficult type of decay is prevented.
Decay in the email.
Decay occurs in the outermost layer of the teeth and hard, grow slowly. After penetrating into the second layer (dentine, softer), the decay will spread more quickly and get into the pulp (innermost layer of the tooth containing nerves and blood vessels).
It takes 2-3 years to penetrate the enamel, but the journey from the dentin to the pulp only takes 1 year. therefore the root decay in the dentin can destroy a lot of tooth structure in a short time.
