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dentine

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dentine,
n See dentin.

dentine
one of the hard tissues of the teeth which constitutes most of its bulk. Lies between the pulp cavity and the enamel, and where it is not covered by enamel is covered by cementum, the third hard substance of the tooth.

sclerotic dentine
a dense clear dentine formed when the dentinal tubules are filled with mineralized material.
secondary dentine
dentine laid down in later development of a tooth, helping to avoid the exposure of the tooth pulp. It is often pigmented and is responsible for the appearance of the dental star.
tertiary dentine
produced in response to irritation of odontoblastic processes. Called also reparative dentine.


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Dental hygienist, Lycia Cunningham, from The Smile Spa in Stockton, says the signs of acid erosion are: * Sensitivity -hot cold and sweet; * Discolouration -yellow as dentine shows through; * Rounded teeth; * Transparency; * Cracks "Early intervention is the key," says Lycia.
There are also teeth whitening treatments that whiten enamel and dentine in one short visit to the dentist, who will be able to tell you if you are suitable for this advanced treatment.
Placoid scales are like our teeth in that they are made of dentine.
 
 
 
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