Term
| The cap stage of development is during which weeks of fetal development? |
|
Definition
|
|
Term
| root dentin forms from which cellular layer? |
|
Definition
| outer cells of the dental papilla |
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|
Term
Which of the following is formed from the mandibular arch?
forehead
lower face
philtrum
nose |
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Definition
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|
Term
| What is the term for the posterior 2/3 of the hard palate containing the maxillary canines and posterior teeth? |
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Definition
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|
Term
| Hertwig's root sheath is composed of what two tissue layers? |
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Definition
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|
Term
| The anterior portion of the tongue is formed by which triangular structure? |
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Definition
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|
Term
| The base of the tongue is formed by what circular swelling? |
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Definition
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|
Term
| What are 3 developmental disturbances from the cap stage of development? |
|
Definition
dens en dente
gemination
fusion |
|
|
Term
| What are two developmental disturbances from the initiation stage of tooth development? |
|
Definition
anodontia
supernumerary tooth |
|
|
Term
| What are 2 developmental disturbances from the bud stage of tooth development? |
|
Definition
macrodontia
microdontia (peg tooth) |
|
|
Term
| T/F- The paired maxillary processes fuse at midline to form the mandibular arch? |
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Definition
|
|
Term
| What is another term for the primary palate? |
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Definition
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|
Term
| Mesenchymal cells come from which germ layer? |
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Definition
|
|
Term
| After the formation of the IEE in the bell shaped enamel organ, the innermost cells elongate, repolarize and differentiate into which cells? |
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Definition
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|
Term
| Muscles and connective tissue arise from which germ layer? |
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Definition
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|
Term
| The oropharyngeal membrane disintegrates during which week of prenatal development? |
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Definition
|
|
Term
| The walls of the pulp cavity are lined with what cells? |
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Definition
|
|
Term
| The globular process becomes what two structures in the adult? |
|
Definition
| philtrum and primary palate |
|
|
Term
| what is the strand of epithelium on the jaw ridge where tooth development begins? |
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Definition
|
|
Term
| What induces the preameloblast to differentiate into an ameloblast? |
|
Definition
| disintegration of the basement membrane between the IEE and predentin |
|
|
Term
| What 3 embryological structures make up the tooth germ |
|
Definition
enamel organ
dental papilla
dental sac |
|
|
Term
| What is the term for two adjacent teeth becoming fused by cementum during development? |
|
Definition
|
|
Term
| What structure produces the future dentin and pulp tissue for the inner portion of the tooth? |
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Definition
|
|
Term
| what structure defines the shape of the root? |
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Definition
|
|
Term
| Proliferation and unequal growth in different parts of the tooth bud are characteristics of what tooth development stage? |
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Definition
|
|
Term
| The tongue develops from which branchial arches? |
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Definition
|
|
Term
| Which branchial arch divides into the maxillary and mandibular processes? |
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Definition
|
|
Term
| What is the term that describes a change in identical embryonic cells to become distinct in both structure and function |
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Definition
|
|
Term
| What is the term for remnants of Hertwig's root sheath epithelial cells in the PDL? |
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Definition
|
|
Term
| What are the 4 layers of the enamel organ |
|
Definition
IEE
OEE
stratum intermedium
stellate reticulum |
|
|
Term
| During which phase of prenatal development are disturbances most likely to occur |
|
Definition
|
|
Term
| The foramen cecum eventually invaginates and becomes what structure? |
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Definition
|
|
Term
| The attachment epithelium is derived from what previous structure? |
|
Definition
| reduced enamel epithelium |
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|
Term
| what membrane separates the foregut and stomodeum? |
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Definition
|
|
Term
| The nervous system, epidermis, and enamel are derived from which germ layer? |
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Definition
|
|
Term
| What is the term for tooth development? |
|
Definition
|
|
Term
| The outer cells of the dental papilla differentiate into what cells? |
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Definition
|
|
Term
| What are three derivatives of the dental sac? |
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Definition
|
|
Term
| Odontogenesis of the primary teeth occurs between which weeks of prenatal development? |
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Definition
|
|
Term
| The embryonic period is between which weeks? |
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Definition
|
|
Term
| Cleft palate results from lack of fusion of which two structures? |
|
Definition
| right and left palatine processes |
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|
Term
| Which stage of embryo development involves controlled cellular growth and accumulation of byproducts? |
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Definition
|
|
Term
| Enamel develops from which germ layer? |
|
Definition
|
|
Term
| dentin and pulp develop from which germ layer? |
|
Definition
|
|
Term
| Facial development is completed during which week of prenatal development? |
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Definition
|
|
Term
| Nasmyth's membrane is the remains of what previous cellular layer? |
|
Definition
| Reduced enamel epithelium (REE) |
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|
Term
| The earliest signs of facial development are during the 3rd week and are marked by the formation of what structure? |
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Definition
|
|
Term
| the ends of collagen fibers of the PDL that embed into the alveolar bone or cementum are called? |
|
Definition
|
|
Term
| During which weeks does the tongue form? |
|
Definition
|
|
Term
| What is the protein component of enamel found between enamel rods? |
|
Definition
|
|
Term
| What salivary gland is associated with the circumvallate lingual papillae |
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Definition
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|
Term
| What are partially calcified vertical sheets of enamel matrix that extend from the DEJ near the cervical end to the outer occlusal surface? |
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Definition
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|
Term
| Parakeratinized stratified squamous epithelium is associated with what oral tissues? (2) |
|
Definition
attached gingiva
lingual papillae on the dorsal surface of the tongue |
|
|
Term
| What is the first dentin formed? |
|
Definition
|
|
Term
| What are large bundles of collagen fibers that cross the PDL to provide attachment for the tooth? |
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Definition
|
|
Term
| cementum originates from what two tissues? |
|
Definition
dental sac
mesodermal tissue |
|
|
Term
| formation of an ameloblast from cells of the IEE is an example of what? |
|
Definition
|
|
Term
| Which epithelial tissue lacks a nucleus in the keratin squame cells of the most superficial layer? |
|
Definition
|
|
Term
| serous demilunes are associated with what type of acini? |
|
Definition
|
|
Term
| When do taste buds first appear? |
|
Definition
|
|
Term
| The hyoid bone originates from which branchial arch? |
|
Definition
|
|
Term
| when do myoepithelial cells activate? |
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Definition
|
|
Term
| myoepithelial cells arise from what cells? |
|
Definition
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|
Term
| T/F- The parotid salivary gland appears during the 6th week of prenatal development but does not secrete saliva until after birth |
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Definition
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|
Term
| The hard thin layer of bone that lines the alveolus is called what? |
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Definition
|
|
Term
| Meckel's cartilage is formed from which branchial arch? |
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Definition
|
|
Term
| Meckel's cartilage forms what adult structures? |
|
Definition
| ligaments of the jaw and middle ear |
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|
Term
|
Definition
|
|
Term
| The palatine tonsils originate from which pharyngeal pouch? |
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Definition
|
|
Term
| Reichert's cartilage is associated which branchial arch? |
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Definition
|
|
Term
| the first pharyngeal pouch develops into what structure? |
|
Definition
|
|
Term
| What are the 3 components of the PDL? |
|
Definition
collagen fibers
nerve fibers
blood vessels |
|
|
Term
| The majority of facial development occurs between which weeks? |
|
Definition
|
|
Term
| What 3 dental structures can form throughout life? |
|
Definition
|
|
Term
| What lines result from removal of cementum by odontoblasts? |
|
Definition
|
|
Term
| What lines result from apposition of bone/cementum? |
|
Definition
|
|
Term
| What is the term for extra production of cellular cementum at the apex of a tooth, usually caused from chronic inflammation or trauma? |
|
Definition
|
|
Term
| What is a radiopaque line representing the alveolar bone proper? |
|
Definition
|
|
Term
| The supporting bone of the alveolar bone are composed of what two bone types? |
|
Definition
cortical bone
trabecular (cancellous) bone |
|
|
Term
| trabecular bone is found between which two denser bone structures? |
|
Definition
| alveolar bone proper (lamina dura) and cortical plates |
|
|
Term
| During orthodontic movement, what are the two pressures zones created and are they associated with bone resorption or deposition? |
|
Definition
compression zone (resorption)
Tension zone (deposition) |
|
|
Term
| The primary function of the PDL is to attach the teeth to the alveolus. What are the 4 secondary function? |
|
Definition
suspension (maintains gingiva and teeth spacing)
shock absorber
nutrient supply
proprioception (sensory) |
|
|
Term
| What are the two classes of principal fibers? |
|
Definition
gingival group
dentoalveolar group |
|
|
Term
| What is the function of the gingival fiber group? |
|
Definition
| maintain tooth contact with surrounding epithelium |
|
|
Term
| What is function of the alveolar crest group? |
|
Definition
|
|
Term
| What is the function of the horizontal fiber group? |
|
Definition
| resist horizontal movement of the tooth |
|
|
Term
| What is the function of the oblique fiber group? |
|
Definition
|
|
Term
| What is the function of the apical fiber group? |
|
Definition
| resist the tooth being pulled from the socket |
|
|
Term
| What is the function of the interradicular fiber group? |
|
Definition
found between root furcations
works with alveolar crest and apical groups |
|
|
Term
| What is the function of transeptal fibers? |
|
Definition
| maintains interproximal contact (tooth to tooth) |
|
|
Term
| Interglobulin Dentin is common in people with what vitamin deficiency? |
|
Definition
|
|
Term
| Completely crystalized Dentin is called? |
|
Definition
|
|
Term
| hypomineralized dentin is called? |
|
Definition
|
|
Term
| What are two toothpaste compounds that aid in dentin sensitivity |
|
Definition
strontium chloride
potassium nitrate |
|
|
Term
| what is the first dentin formed that is perpendicular to the DEJ |
|
Definition
|
|
Term
| What is the layer of dentin around the outer pulpal wall? |
|
Definition
|
|
Term
| What is the chemical formular for hydroxyapatite? |
|
Definition
|
|
Term
| What is enamel loss from tooth to tooth contact?> |
|
Definition
|
|
Term
| What is enamel loss through chemical means not involving bacteria |
|
Definition
|
|
Term
| What is enamel loss through fiction? |
|
Definition
|
|
Term
| What is tooth loss through chemical means from cariogenic bacteria |
|
Definition
|
|
Term
| enamel loss through tensile and compression forces during tooth flecture |
|
Definition
|
|
Term
| What is a zone in enamel that doesn't have Hunter-Schrager bands? |
|
Definition
|
|
Term
| What are bands of enamel seen on micrograph due to the angle of enamel rods the reflects light? |
|
Definition
|
|
Term
| What are incremental growth lines in enamel that form concentric growth lines on cross section? |
|
Definition
|
|
Term
| What is a pronounced line of retzius that separates pre and post birth enamel? |
|
Definition
|
|
Term
| What are extensions of dentinal tubules that pass through the DEJ and extend into the enamel? |
|
Definition
|
|
Term
| What are hypocalcified defects in enamel that appear as small dark brushes from the DEJ that extend to the inner 1/3 of enamel? |
|
Definition
|
|
Term
| What are partially calcified vertical sheets of enamel matrix that extend from the DEJ to the outer occlusal surface and can cause stress fractures? |
|
Definition
|
|
Term
| What are the 3 major salivary glands? |
|
Definition
Parotid
Submandibular
Sublingual |
|
|
Term
| What is the only unencapsulated major salivary gland> |
|
Definition
|
|
Term
| The parotid gland is served by what duct? |
|
Definition
|
|
Term
| What major gland produces 25% of saliva in the mouth? |
|
Definition
|
|
Term
| The submandibular gland is served by what duct? |
|
Definition
|
|
Term
| Is the perotid gland serous, mucous, or both? |
|
Definition
|
|
Term
| What major gland produces 60% of saliva |
|
Definition
|
|
Term
| Is the submandibular gland serous, mucous, or both? |
|
Definition
|
|
Term
| What duct serves the sublingual gland? |
|
Definition
|
|
Term
| What gland produces 10% of saliva? |
|
Definition
|
|
Term
| Is the sublingual gland serous, mucous, or both |
|
Definition
|
|
Term
| What is the term for increase in size and change in consistency of lymph nodes due to infection? |
|
Definition
|
|
Term
| What are the 3 main types of oral mucosa in the oral cavity? |
|
Definition
lining
masticatory
specialized |
|
|
Term
| What are the 3 cell layers of lining mucosa? |
|
Definition
superficial
intermediate
basal |
|
|
Term
| What are the 4 cell layers of ortho and parakeratinized masticatory mucosa? |
|
Definition
keratin
granular
prickle
basal |
|
|
Term
| What are the two layers that make up the lamina propria? |
|
Definition
papillary layer (contains capillaries)
dense reticular layer |
|
|
Term
| Is labial mucosa (lips) keratinized? |
|
Definition
| no. Just very thick epithelium |
|
|
Term
| What taste receptors are located on the tip of the tongue? |
|
Definition
|
|
Term
| what taste receptors are located on the front sides of the tongue |
|
Definition
|
|
Term
| what taste receptors are located on the posterior sides of the tongue |
|
Definition
|
|
Term
| what taste receptors are located in the posterior center of the tongue and soft palate? |
|
Definition
|
|
Term
| What kind of cartilage is found in the embryonic skeleton? |
|
Definition
|
|
Term
| What kind of cartilage is found in the external ear and epiglottis |
|
Definition
|
|
Term
| What kind of cartilage is found in tendons and ligaments? |
|
Definition
|
|
Term
| What is the canal in compact bone that allows blood vessels and nerves to communicate with larger peripheral structures? |
|
Definition
|
|
Term
| The maxilla and mandible form through what form of ossification? |
|
Definition
|
|
Term
| The condyles of the mandible form through what form of ossification |
|
Definition
|
|
Term
| What are the first cells to appear at the cite of an injury? |
|
Definition
| PMN (polymorphonuclear leukocytes) |
|
|
Term
| What are the second cells to appear at an injury site during the immune response? |
|
Definition
|
|
Term
| nerves are derived from what developmental tissue? |
|
Definition
|
|
Term
| What are the 6 stages of odontogenesis? |
|
Definition
initiation
bud
cap
bell
apposition
maturation |
|
|
Term
| When does the initiation stage of odontogenesis begin? |
|
Definition
|
|
