Dentures CH 1

A

palatine processes of maxillae

form the anterior ¾ of hard palate

palatine processes of maxillae

B

horizontal plates of the palatine bones

form the posterior ¼ of the hard palate

horizontal plates of the palatine bones

C

alveolar ridge

this is a horseshoe-shaped ridge superimposed on the maxilla and palatine bones

alveolar ridge

D

maxillary tuberosity

the terminations on each side of the alveolar ridge posteriorly

maxillary tuberosity

E

hamulus/ hamular process

the tip of the internal pterygoid plate of the sphenoid bone just posterior to the maxillary tuberosity

hamulus/ hamular process

F

hamular notch or pterygomaxillary notch

a notch between the maxillary tuberosity and the hamular process

hamular notch or pterygomaxillary notch

G

maxillary/ median suture

the antero-posterior line of union of the bones in the center of the vault

maxillary/ median suture

an excessive exostosis of bone in the center of the vault to form a rounded elevation

torus palatinus

H1

incisive foramen

in midline just lingual to the crest of the residual alveolar ridge

incisive foramen

nerve associated with incisive foramen

nasopalatine

a maxillary denture could impinge on the nasopalatine nerve if precautions aren’t taken

true

H2

greater palatine foramen

bilaterally located on the lingual side of the alveolar ridge in the second molar area- near the junction of the ridge and the horizontal portion of the vault

greater palatine foramen

nerve associate with greater palatine foramen

anterior palatine nerve

artery associated with greater palatine foramen

descending palatine artery

a maxillary denture usually impinges on the anterior palatine nerve and precautions should be taken

false

H3

lesser palatine foramen

usually located slightly to the distal of the greater palatine foramen

lesser palatine foramen

I

malar/ zygomatic process of maxilla

extends upward and outward on the buccal aspect of the residual alveolar ridge in the region of the first molar

malar/ zygomatic process of maxilla

J

cuspid eminence

over the cuspid root- usually remains following removal of the teeth and serves as a guide to positioning the artificial tooth

cuspid eminence

A

body of the mandible

B

rami (2, R & L)

B1

coronoid process

the anterior process on which the tendon of the temporalis muscle inserts

coronoid process

B2

condyle

distal process - has a neck and a convex, oblong head that articulate with glenoid (articular) fossa at the base of the temporal bone

condyle

C

residual alveolar ridge

D

external oblique ridge

extends downward and forward as a curved ridge from the anterior border of the ramus onto the buccal surface of the body of the mandible at its junction with the alveolar ridge

external oblique ridge

E

mental foramen

located on the lingual aspect of the body of the mandible in the molar region and runs downward and forward

mylohyoid ridge

superior and inferior- locate on the lingual aspect at the midline of the body of the mandible

genial tubercles

muscle attached to SUPERIOR genial tubercle

genioglossus muscle

muscle attached to INFERIOR genial tubercle

geniohyoid muscle

the maxillary ridge resorbs at the expense of the _ and _

crest and labial or buccal aspect

the maxillary crest of the ridge is moving in a _ and _ direction

superior and lingual

the maxillary arch has a tendency to become __ due to the resorption process

smaller

the mandibular ridge resorbs at the expense of the _ of the ridge

crest

the mandibular crest of the ridge is moving in a _ direction

inferior

due to the flaring shape of the body of the mandible, the mandibular arch has a tendency to become _ as a result of the resorption process

larger

in general the resorption rate is 4x faster in the edentulous __

mandible

an insertion of the _ muscle may be recorded on the outer portion of the buccal flange of the maxillary impression

temporalis

the _ muscle has an effect on the disto-buccal border of the mandibular impression; when contracted, it apples pressure against the buccinator which in turn form the disto-buccal corner

masseter

a few fibers of the _ muscle arise from the tuberosity area and will cause the indentation of this muscle to be recorded in the maxillary impression (posterior aspect of the buccal flange)

medial pterygoid

the fourth muscle of mastication; has no direct effect on the denture area

lateral pterygoid

runs from the hamulas to the mandible in the area of the underlying retromolar pad

pterygomandibular raphe

the _ and _muscles attach at the pterygomandibular raphe

buccinator and superior constrictor

limits the distal extension of the lingual flange of the mandibular denture along with superior constrictor

palatoglossus muscle

extends from the pterygo-mandibular raphe to the orbicularis oris

buccinator muscle

the _ muscle is a limiting factor of the length of the lingual flange of the mandibular denture

mylohyoid

the muscle that drops the soft palate; a denture will rest on a portion of this muscle in the posterior palatal seal area

tensor veli palatini

elevate the soft palate

levator veli palatini

A

residual alveolar ridge

C

malar/ zygomatic process

D

frenae

frenum located in the midline; a loe of mucous membrane; attaches the orbicularis oris to the ridge; there are NO muscle fibers in this frenum

labial

frenum located on the buccal aspect of the ridge in the region of the first bicuspid; zygomaticus and caninus muscle fibers present in this frenum

buccal

E

incisive papilla

pressure to this area from a denture may impinge upon the naso-palatine nerve and produce a burning or tingling sensation in the anterior area

incisive papilla

fatty zone

anterior one-half of palate

glandular zone

posterior one-half of palate

posterior extension of the denture laterally

hamular notch area

anterior boundary of hamular notch area

maxillary tuberosity

posterior boundary of hamular notch area

hamulus

K

fovea palatinae

two small pinpoint depressions in the midline of the posterior part of the maxillary vault; coalescence of mucous glands

L

vibrating line

marks the beginning of the motion in the soft palate when an individual say “ah” and the soft palate elevates; usually passes 1-2 mm anterior to the fovea palatinae; distal end of the denture should extend to this point

vibrating line

the area anterior from the vibrating line that is displaceable

posterior palatal seal area

B

retromolar pad

posterior extension of the denture is at the base; serves as a landmark for positioning the occlusal plane of the artificial teeth

retromolar pad

C

pterygo-mandibular raphe

limits buccal extension of the denture

external oblique ridge