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WorksheetsHistology chapter 7/8 quiz
Total questions: 10
Worksheet time: 5mins
Dentin is largely composed of which element?
Water
Collagen
Protein
Hydroxyapatite
Dentin is more _________ than enamel, and _________than pulp.
radiolucent; radiolucent
radiolucent; radiopaque
radiopaque; radiolucent
radiopaque; radiopaque
Dentinal tubules are blocked by __________during cavity preparation
tubule contraction
sclerotic dentin
replacement odontoblasts
a smear layer
Each enamel rod is formed by _____ ameloblast(s).
one
two
three
four
Enamel tufts are filled with which material?
Keratin
Enamelin
Melanin
Myosin
Sclerotic dentin is formed by
the death of odontoblasts
the outer enamel epithelium
ameloblasts
odontoblasts.
Sclerotic dentin is also known as _____________ dentin.
reactionary
tertiary
transparent
responsive
The scalloped junction between dentin and enamel improves
flexibility
permeability
adherence
sensitivity
Which best defines tertiary dentin?
Zone of deficiently mineralized dentin
Reactionary deposit of dentin, usually as a result of trauma to the pulp
Calcified tubules resulting from old age or trauma
The first deposit of dentin along the dentinoenamel junction
Which part of the enamel rod is most susceptible to demineralization?
Tail
Head
Core
Sheath
