DEN 110 FINAL EXAM STUDY GUIDE
foliate papilla - Answers -large, raised, circular, located on bilateral borders of tongue,
help taste sour
fungiform papilla - Answers -large, round, raised, scattered along dorsal surface,
typically near apex, helps taste sour, sweet, salty
filiform papilla - Answers -slender, hair-like, located posteriorly on dorsal surface, no
tastebud association, helps form bolus, sensation, can stain
circumvallate papilla - Answers -round, raised, located in a v-shape in posterior area of
tongue, helps taste bitter, special because it contains lingual glands of von Ebner
palatine fovea - Answers -small depressions in mucosa on either side of anterior nasal
spine
palatine raphe - Answers -median palatine suture, fusion of right/left palate
oropharyngeal isthmus - Answers -back of throat
palatoglossal arch - Answers -anterior strip of tissue from soft palate to floor of mouth
pterygomandibular fold - Answers -strip of tissue behind molars, extends from mandible
palatopharyngeal arch - Answers -posterior strip of tissue from soft palate to floor of
mouth
enamel - Answers -96% mineralized, made from ameloblasts (ectoderm)
dentin - Answers -70% mineralized, made from odontoblasts (mesoderm), has tubules,
primary, secondary, reparative
cementum - Answers -soft, made from cementoblasts (mesoderm), cellular (apical) and
acellular (cervical)
free gingiva - Answers -starts at gingival margin and extends to base of gingival sulcus,
tightly attached to tooth, 1-3 mm when healthy, innermost is non-keratinized, outer is
keratinized
attached gingiva - Answers -begins at base of sulcus, attached to bone and cementum,
keratinized and can withstand trauma
mucogingival junction - Answers -line separating attached gingiva from alveolar
mucosa, somewhat scalloped
, alveolar mucosa - Answers -reddish/pink, shiny and moist, lines vestibule of oral cavity,
non-keratinized
apical boundary of gingival sulcus - Answers -junctional epithelium
coronary boundary of gingival sulcus - Answers -free gingival margin
periodontal ligament - Answers -surrounds root of tooth, suspends like a hammock,
helps prevent tooth from being pushed into bone, attached to bone and cementum, can
stretch, produces cementum
cribriform plate - Answers -compact bone lining alveolus, lamina dura (radiographically)
gingiva - Answers -attached to teeth and alveolar bone, free, attached, and interdental
embryological growth of maxillary lip - Answers -maxillary process of mandibular arch
(first brachial) grows forward to form sides of lip, medial nasal process (globular
process) grows together and join maxillary processes, forms by week 6
rests of malassez - Answers -epithelial cells drifted and found in periodontal ligaments,
if divided later it may lead to periodontal cysts
ectoderm - Answers -forms enamel
mesoderm - Answers -forms cementum and dentin
entoderm - Answers -does not form anything in oral cavity
cleft palate - Answers -premaxillary process and/or palatine shelves do not fuse, ~11
weeks
tissues of periodontium - Answers -PDL, cementum, cribriform plate, gingiva
four layers of enamel organ - Answers -OEE, IEE, stellate reticulum, stratum
intermedium
outer enamel epithelium - Answers -OEE, protects enamel organ, later attaches gingiva
to tooth
inner enamel epithelium - Answers -IEE, outlines deepest part of concavity, continuous
with OEE, becomes ameloblasts during bell stage
stellate reticulum - Answers -located in center of enamel organ, synthesizes
glycosaminoglycans, helps nourish IEE
foliate papilla - Answers -large, raised, circular, located on bilateral borders of tongue,
help taste sour
fungiform papilla - Answers -large, round, raised, scattered along dorsal surface,
typically near apex, helps taste sour, sweet, salty
filiform papilla - Answers -slender, hair-like, located posteriorly on dorsal surface, no
tastebud association, helps form bolus, sensation, can stain
circumvallate papilla - Answers -round, raised, located in a v-shape in posterior area of
tongue, helps taste bitter, special because it contains lingual glands of von Ebner
palatine fovea - Answers -small depressions in mucosa on either side of anterior nasal
spine
palatine raphe - Answers -median palatine suture, fusion of right/left palate
oropharyngeal isthmus - Answers -back of throat
palatoglossal arch - Answers -anterior strip of tissue from soft palate to floor of mouth
pterygomandibular fold - Answers -strip of tissue behind molars, extends from mandible
palatopharyngeal arch - Answers -posterior strip of tissue from soft palate to floor of
mouth
enamel - Answers -96% mineralized, made from ameloblasts (ectoderm)
dentin - Answers -70% mineralized, made from odontoblasts (mesoderm), has tubules,
primary, secondary, reparative
cementum - Answers -soft, made from cementoblasts (mesoderm), cellular (apical) and
acellular (cervical)
free gingiva - Answers -starts at gingival margin and extends to base of gingival sulcus,
tightly attached to tooth, 1-3 mm when healthy, innermost is non-keratinized, outer is
keratinized
attached gingiva - Answers -begins at base of sulcus, attached to bone and cementum,
keratinized and can withstand trauma
mucogingival junction - Answers -line separating attached gingiva from alveolar
mucosa, somewhat scalloped
, alveolar mucosa - Answers -reddish/pink, shiny and moist, lines vestibule of oral cavity,
non-keratinized
apical boundary of gingival sulcus - Answers -junctional epithelium
coronary boundary of gingival sulcus - Answers -free gingival margin
periodontal ligament - Answers -surrounds root of tooth, suspends like a hammock,
helps prevent tooth from being pushed into bone, attached to bone and cementum, can
stretch, produces cementum
cribriform plate - Answers -compact bone lining alveolus, lamina dura (radiographically)
gingiva - Answers -attached to teeth and alveolar bone, free, attached, and interdental
embryological growth of maxillary lip - Answers -maxillary process of mandibular arch
(first brachial) grows forward to form sides of lip, medial nasal process (globular
process) grows together and join maxillary processes, forms by week 6
rests of malassez - Answers -epithelial cells drifted and found in periodontal ligaments,
if divided later it may lead to periodontal cysts
ectoderm - Answers -forms enamel
mesoderm - Answers -forms cementum and dentin
entoderm - Answers -does not form anything in oral cavity
cleft palate - Answers -premaxillary process and/or palatine shelves do not fuse, ~11
weeks
tissues of periodontium - Answers -PDL, cementum, cribriform plate, gingiva
four layers of enamel organ - Answers -OEE, IEE, stellate reticulum, stratum
intermedium
outer enamel epithelium - Answers -OEE, protects enamel organ, later attaches gingiva
to tooth
inner enamel epithelium - Answers -IEE, outlines deepest part of concavity, continuous
with OEE, becomes ameloblasts during bell stage
stellate reticulum - Answers -located in center of enamel organ, synthesizes
glycosaminoglycans, helps nourish IEE
