Enamel quiz - written notes
Enamel Knowledge Quiz
Test your understanding of enamel, the hardest tissue in the human body! This quiz will challenge your knowledge on its composition, formation, and properties.
Join now and discover:
- What makes enamel so unique
- Key facts about its development
- The role enamel plays in oral health
Enamel is the hardest tissue found in the body
True
False
Hardness of enamel results from its high degree of ___________
Fibers
Dentin
Calcification
Attrition
Enamel is insusceptible to attrition
True
False
Enamel acts as a ______________ membrane
Permeable
Semipermeable
Non-permeable
Enamel does not act as a membrane
Enamel is pure white
True
False
Color of enamel is determined by differences in _________ of enamel
Hardness
Translucency
Transparency
Opacity
The mineral ___________ makes up 96% of the enamel weight
Hydroxyapatite
Strontium
Calcium
Magnesium
The development/formation of the enamel is known as __________
Enamelosis
Hypocalcification
Amelogenesis
Enamelogenesis
What cell lays down a matrix of mucopolyssacharides and organic fibers next to the dentin matrix and forms the future DEJ
Ameloblasts
Odontoblasts
Osteoblasts
Mesenchymal cells
The other 4% of enamel is composed of _____ and _______
H2O2; inorganic materials
H2O; Organic materials
Phosphate; Organic materials
Nitrogen; calcium
As the ameloblasts secrete the matrix, it moves _______ dentin toward the enamel epithelium
Toward
Away from
Enamel is first put down where?
Cusp tips and incisal edges
DEJ
Pulp cavity
Root
The structural unit of enamel is a ______
Ameloblast
Prism
Crystal
Tuft
What shape are enamel prisms?
S-shaped
Round
Square
Keyhole shaped
The second stage of calcification
Mineralization
Maturation
When the enamel crystals are less tightly packed together
Hypercalcified
Hypocalcified
Hypocalcified areas decay more rapidly. Hypocalcified areas appear as yellow.
Both statements are true
Both statements are false
The first statement is true and the second is false
The first statement is false and the second is true
Every _____ day there is a change in development of rod and a brownish line develops in the enamel
2nd
4th
5th
6th
Incremental growth lines or bands seen in tooth enamel that appear as brown
Striae of Retzius
Hunter-Schrager bands
Enamel spindles
Enamel lamellae
Prism sheaths consist exclusively of __________
Hydroxyapatite
Enamel matrix
Dentin matrix
Calcium
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