EFDA Review questions with answers

EFDA Review questions with answers \| \| \| \|




What is the anatomical crown? - CORRECT ANSWERS ✔✔The
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portion that extends from the incisal or occlusal surface to the
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enamel's junction with the cementum of the root
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What is the clinical crown? - CORRECT ANSWERS ✔✔The visible
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portion of the anatomical crown extending from the crest of the
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soft tissue and includes the occlusal surface or incisal edge
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What is the cementoenamel junction (cervical line)? - CORRECT
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ANSWERS ✔✔A slight constriction that encircles the tooth,
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dipping apically on the facial and lingual surfaces and rising
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coronally on the proximal surfaces \| \| \| \|




What is the function of the anterior teeth? - CORRECT ANSWERS
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✔✔To tear or incise food
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What is the function of the posterior teeth? - CORRECT
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ANSWERS ✔✔Shaped with broad biting and convex surfaces that
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grind food \|




Where is the furrow? - CORRECT ANSWERS ✔✔Coronal to the
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actual division into two or more roots is a concavity that extends
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to or nearly to the cementoenamel junction
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,Define contact area - CORRECT ANSWERS ✔✔The point or area
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where approximating teeth in the same arch touch or meet each
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other


What is the functions of the contact area? - CORRECT ANSWERS
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✔✔To keep food from packaging between the teeth and to help
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stabilize the dental arches by combining the anchorage of all
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teeth in either arch
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What is an embrasure? - CORRECT ANSWERS ✔✔The spaces
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adjacent to and surrounding the contact of the teeth in the same
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arch


Where is enamel the thickest? - CORRECT ANSWERS ✔✔At the
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incisal or occlusal areas
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What is enamel's composition? - CORRECT ANSWERS ✔✔95%
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inorganic matter, mainly hydroxyapatite, and 5% organic matter
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and water
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______ is the hardest tissue in the body - CORRECT ANSWERS
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✔✔Enamel


____ is the second hardest material in the body - CORRECT
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ANSWERS ✔✔Dentin \|




_____ provides support for enamel and increases in hardness as
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it ages - CORRECT ANSWERS ✔✔Dentin
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,When scratching dentin with an explorer, it exhibits a ____ sound
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opposed to the sharp higher pitch of enamel - CORRECT
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ANSWERS ✔✔Dull \|




Dentin is composed of - CORRECT ANSWERS ✔✔70% inorganic
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matter, 20% organic matter, and 10% water
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Primary dentin - CORRECT ANSWERS ✔✔Is produced before the
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tooth erupts and shortly after eruption
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Secondary dentin - CORRECT ANSWERS ✔✔Is a continuation of
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primary dentin that forms at a slower rate as the tooth ages and
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throughout the life of the tooth \| \| \| \| \|




Reparative/Tertiary dentin - CORRECT ANSWERS ✔✔Forms \| \| \| \| \| \|


rapidly when the tooth has received an excessive stimulus from
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caries, cavity preparation, or other trauma
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___ is the hard dental tissue covering the anatomical roots of the
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teeth - CORRECT ANSWERS ✔✔Cementum
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What has the highest fluoride content of all the materialized
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tissue? - CORRECT ANSWERS ✔✔Cementum
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___ has no blood supply of its own, but derives its nutrition from
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the periodontal ligament - CORRECT ANSWERS ✔✔Cementum
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, What cementum cannot replace itself if it is diseased or has
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been removed mechanically? - CORRECT ANSWERS ✔✔Acellular
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____ cementum extends from the cementoenamel junction toward
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the root apex covering a large portion of the root. Thin toward
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the cementoenamel junction and thick toward the root apex -
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CORRECT ANSWERS ✔✔Acellular \| \|




What is the fourth hardest material in the body? - CORRECT
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ANSWERS ✔✔Cementum \|




___ cementum of the apex of the root is made of cells that are
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actively producing new layers of cementum throughout the life
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of the tooth - CORRECT ANSWERS ✔✔Cellular
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The pulp serves functions such as - CORRECT ANSWERS
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✔✔Formative/Developmental, Nutritive, \| \|


Sensory, Defensive/Protective \|




What function provides sensory nerve fibers within the pulp to
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mediate the sensation of pain? - CORRECT ANSWERS ✔✔Sensory
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What function is related to its response to irritation by
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mechanical, thermal, chemical, bacterial stimuli? - CORRECT
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ANSWERS ✔✔Defensive \|