dentin dysplasia

dentin dysplasia

n.

A hereditary disorder of both the primary and permanent teeth characterized by short roots, obliteration of the pulp chambers and canals, and mobility and premature loss.

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dentin (den´tin),

n the portion of the tooth that lies subjacent to the enamel and cementum. Consists of an organic matrix on which mineral (calcific) salts are deposited; pierced by tubules containing the processes of the odontoblasts that line the pulpal chamber and canal. It is of mesodermal origin. Older term is dentine.

dentin bonding agent,

n a tissue compatible adhesive that adheres to dentin.

dentin, carious,

n the dentin that is involved in or affected by the carious process.

dentin dysplasia,

n See dysplasia, dentinal.

dentin eburnation

(ē´burnā´shn),
n a change in carious teeth in which the decayed dentin assumes a hard, brown, polished appearance and becomes arrested.

dentin, globular,

n part of dentinal matrix consisting of completely fused and calcified globules of predentin.

dentin, hereditary opalescent

(ō´ples´nt),
n See dentinogenesis imperfecta.

dentin, hyperesthesia of

(hī´pristhē´zh),
n an excessive sensibility of dentin.

dentin, interglobular,

n the incompletely calcified dentinal matrix present between the calcified globules.

dentin, intertubular,

n the dentin present between the dentinal tubules.

dentin irritation (tertiary dentin, reparative dentin),

n the dentin formed in response to an injury or irritant.

dentin, mantle,

n the outer portion of dentin bordering the enamel or cementum of the tooth.

dentin, primary,

n a type of dentin, made of straight dentinal tubules, that develops until the apical foramen of the root of the tooth is fully formed.

dentin, residual carious,

n See caries, dental, residual.

dentin, sclerotic,

n See dentin, transparent.

dentin, secondary,

n the dentin formed or deposited on the walls of pulp chambers and canals subsequent to the complete formation of the tooth; caused by certain metabolic disturbances that result in irritation and stimulation of the odontoblasts to renewed activity.

dentin, transparent (sclerotic dentin)

(sklrot´ik),
n dentin formed as a defense mechanism in reaction to various stimuli. Dental tubules are obliterated by deposits of calcium salts that are harder and denser than normal dentin. This dentin appears transparent in ground sections.

dentin wall,

n the portion of the wall of a prepared cavity that consists of dentin.