Recent Examples on the WebHis teeth are chewed down to nubs, the dentin and nerves exposed.
Gene Weingarten, Washington Post, 8 Nov. 2021 Once the enamel is dissolved, the underlying portion of the tooth, the dentin, is softer and more easily destroyed by the acid, thus leading to wider and deeper expansion of the cavity.
Jeffrey Ebersole, The Conversation, 18 May 2021 The erosion of enamel can also cause teeth to become more yellow over the long-term, as the yellow-colored dentin, the inner layer of tooth, is exposed.
Lisa Drayer, CNN, 3 Oct. 2019 According to a case study from the American Academy of Pediatric Dentistry, a compound odontoma is considered a developmental anomaly where tumors made of formed of enamel and dentin are formed.
Doha Madani, NBC News, 1 Aug. 2019 This may eventually compromise the underlying dentin, which is a tissue containing hollow canals called tubules.
Korin Miller, SELF, 18 Apr. 2018 Like human teeth, the dragonfish’s teeth have a dense inner dentin layer surrounded by an outer enamellike layer.
Helen Santoro, Science | AAAS, 5 June 2019 Relative dentin abrasivity, or RDA, is a guide to measuring abrasiveness in toothpaste.
Laura Daily, The Seattle Times, 12 Apr. 2019 The thinner the enamel, the more likely the yellowish dentin shows through.
Jill U. Adams, chicagotribune.com, 1 May 2018
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dentin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a calcium-containing material that is similar to bone but harder and that makes up the main part of a tooth
or dentine\ˈden-ˌtēn , den-ˈtēn \
Medical Definition of dentin
: a calcareous material similar to bone but harder and denser that composes the principal mass of a tooth, is formed by the odontoblasts of the surface of the dental papilla, and consists of a matrix containing minute parallel tubules which open into the pulp cavity and during life contain processes of the cells of the pulp — compare cementum, enamel