Edition Fehrenbach Test Bank
The most common cell type in connective tissue such as the pulp is the
endothelial cell.
fibroblast.
white blood cell.
odontoblast. - ANSWER: fibroblast
Which of the following is the only sensation perceived by the brain from the pulp's sensory nerves?
a. Taste
b. Pain
c. Pressure
d. Temperature - ANSWER: b. Pain
During cavity preparation of a tooth, care must be taken to preserve the
enamel rod fluid.
support of dentinal tubules.
cemental vascularity.
vitality of pulp. - ANSWER: vitality of pulp.
Which of the following pulp structures is formed when Hertwig epithelial root sheath encounters a
blood vessel?
Pulp horn
Pulp chamber
Apical foramen
Accessory canal - ANSWER: Accessory canal
During tooth development, both the pulp and dentin in the mature tooth are products of the
dental papilla.
enamel organ.
dental sac.
epithelium. - ANSWER: dental papilla.
Secondary dentin usually forms within the tooth _______
after the completion of the apical foramen.
before the completion of the apical foramen.
, nearest to the dentinoenamel junction.
in response to tooth trauma. - ANSWER: after the completion of the apical foramen.
Dentin in a mature tooth is on the average about ____% mineralized by weight.
a. 50
b. 65
c. 70
d. 96 - ANSWER: c. 70
Which of the following terms associated with dentin can be used to correctly describe the type that
makes up the largest part of the tooth's dentin?
Tomes granular layer
Mantle dentin
Circumpulpal dentin
Interglobular dentin - ANSWER: Circumpulpal dentin
In which location is the cell body of the odontoblast found in a mature, healthy erupted tooth?
Along dentinoenamel junction
Along outer pulpal wall
Near dentinocemental junction
Near pulpal core - ANSWER: Along outer pulpal wall
With increased age, the pulp tissue can become ______
displaced by primary dentin.
increasingly fibrotic.
filled with cementicles.
increasingly cartilaginous. - ANSWER: increasingly fibrotic.
Dentin in the mature tooth is produced as a result of secretion by
a. cementoblasts.
b. fibroblasts.
c. osteoblasts.
d. odontoblasts. - ANSWER: d. odontoblasts.
Predentin is the initial material laid down by the