931. At which functional stage would cells of, or arising from, the inner dental epitheliumcontain the highest concentration of ribosomes?
A. protective
B. formative (secretory)
C. morphogenic
D. maturation
E. organizing
932. A caries lesion that extends into the dentin may stimulate the formation of which of thefollowing?
A. sclerotic dentin formation
B. secondary cementum formation
C. secondary dentin formation
D. dead tract formation
E. peritubular dentin formation
933. Which one of the following is a “pure” serous gland?
A. parotid gland (adult)
B. palatine gland
C. submandibular gland
D. labial gland
E. sublingual gland
934. Hypomineralized structures which extend from the dentino-enamel junction to the surfaceof the enamel and are alined with the longitudinal axis of the tooth are called
A. enamel lamellae
B. Hunter-Schreger bands
C. enamel spindles
D. incremental lines of Retzius
E. enamel rod
935. Cementoblasts first produce
A. secondary cementum
B. Sharpey’s fibers
C. cementoid
D. primary cementum
E. cementocytes
936. Mucoperiosteum may be found in which one of the following regions?
A. soft palate
B. hard palate
C. lip
D. cheek
E. tongue
937. The cells that form cementum arise from the
A. epithelial diaphragm
B. dental papilla
C. outer enamel epithelium
D. fibroblasts
E. dental sac
938. Which one of the following is NOT ectodermal in origin?
A. reduced enamel epithelium
B. dental lamina
C. epithelial (Hertwig’s) root sheath
D. enamel spindle
E. enamel
939. Cementocytes arise when
A. primary cementum is deposited
B. cementoblasts become entrapped by cememtum
C. permanent molars begin to erupt
D. cementoid is converted to cementum
E. permanent anterior teeth begin to erupt
940. Pain originates in the pulp due to
A. free nerve endings in the cell rich layer of the pulp
B. free nerve endings in the vicinity of the odontoblastic cells
C. free nerve endings primarily located in the center of the pulp
D. free nerve endings in the cell free zone (of Weil)
E. myelinated nerve fibers in the adjacent part of the dentin
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