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DH Oral Histology

Chapter 8

QuestionAnswer
What type of dentin is deposited to help protect the pulp? Reactioinary/Response, Reparative, Tertiary
Hard tissue that constitutes the body of the tooth Dentin
Dentin is composed primarily of Organic matrix of collagen fibers Mineral hydroxyapatite
3 primary classifications of dentin Primary Secondary Tertiary
Dentin is composed of what percentage of inorganic hydroxyapatite crystals 70%
Dentin is composed of what percentage of organic collagen fibers with samm amounts of other proteins 20%
Dentin is composed of what percentage of water by weight 10%
Primary dentin (prior to eruption) is composed of what Mantle dentin Interglobular dentin Circumpulpal dentin Peritubular dentin Intertubular dentin
Secondary dentin is what type of dentin Normal Circumpulpal dentin (after eruption)
Tertiary dentin is composed of what Reactionary/response Reparative Osteodentin Sclerotic dentin
Mantle dentin is the first or second to be formed First
Normal Circumpulpal dentin directly underlies what Mantle dentin
What is formed in response to trauma to the pulp Tertiary or Reparative dentin
Dentin that is noticeable with vitamin D deficiency Globular dentin
Odontoblasts, fibroblasts, and blood cells are found here Globular dentin
Band of newly formed, unmineralized matrix of dentin at the pulpal border Predentin
Accentuated line that represents abrupt change in the environment that occurs at birth Neonatal line
Tubules resulting from loss of odontoblastic processes Dead Tracts
Fine particles of cut dentinal debris in dentinal tubules that are produced by cavity preparation. Smear layer
Created by: CCrainHygiene26
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