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WorksheetsOral Biology
Total questions: 10
Worksheet time: 5mins
Which of the following is not a non-calcified tissue:
Enamel
Dentin
Pulp
Cementum
Dentin:
Covers the dental root and anchors the fibrous periodontal ligament
Is produced by ameloblasts
Functions as a bumper for the mechanical loads applied to the tooth
All of the above
Parathyroid hormone:
Stimulates osteoclastic bone resorption
Stimulates calcium resorption from the renal tubules
Stimulates renal production of 1,25 (OH2) D3
All of the above
Which of the following contributes to the buffer-capacity of saliva:
Mucins
Bicarbonate
Lysozyme
None of the above
Why is the quantification of hormones in saliva not commonly used?
Contamination from oral microbiome
Levels do not correlate with serum levels
Hormones are not secreted in the mouth
Hydroxyapatite is composed of..
Calcium and phosphate ratio 1.67
Calcium and phosphate ration 8:2
Calcium and Fluoride ratio 1.67
Calcium and Fluoride ration 8:2
The presence of carbonate in Hydroyapatite reduces solubility.
True
False
Parathyroid hormone (PTH) is syntheised by which cells in the parathyroid gland?
Crypts
Beta cells
Alpha cells
Chief cells
Calcitonin is released from the thyroid gland and acts increases Ca2+uptake in the kidneys
True
False
PTH is stimulated by
Low Ca2+ levels
High Ca2+ levels
