part 1 - oral facial sciences

Question 1

what are the bones of the skull

Answer 1

frontal
parietal
occipital
temporal
sphenoid
ethmoid

Question 2

what are the bones of the face

Answer 2

zygomatic
lacrimal
nasal
vomer
maxillary
palatine
inferior conchae
mandible

Question 3

what are the bones of the auditory ossicles

Answer 3

malleus
incus
stapes

Question 4

what are the components of the maxilla

Answer 4

zygomatic process
alveolar process
maxillary tuberosity

Question 5

what are the bony parts of the tmj and movements

Answer 5

condyloid process
glenoid fossa
articular eminence
- hinge; open and close jaw
- glide; side to side

Question 6

what is the capsular ligaments

Answer 6

a ligament that completely encloses the tmj and aid in movement

Question 7

what are the anatomical landmarks of bones

Answer 7

foramen - opening in bone where blood vessels, nerves and ligaments pass through

fossa - depressed areas in bone

meatus - external opening of canal

process - projection on bone

suture - line where bones form a joint that does not move

symphysis - where bones come together to form a cartilaginous joint

tubercle - small rough projection in bone

tuberosity - large rounded process on a bone

Question 8

what are the muscles of the face and their functions

Answer 8

orbicularis oris - closes and puckers lips
buccinator - compresses cheeks against teeth
mentalis - raises and wrinkles skin on chin
zygomatic major - draw angles of mouth upward
temporalis - raises mandible and closes jaw
masseter - raises mandible and closes jaw
internal pterygoid - closes jaw
externa; pterygoid - opens jaw

Question 9

major salivary glands and their functions

Answer 9

parotid salivary gland - passes saliva to the stensens duct

submandibular salivary gland - releases saliva through whartons duct

sublingual salivary gland - releases saliva through the bartholins duct

Question 10

what are the tonsils

Answer 10

nasopharyngeal tonsils
palatine tonsils
lingual tonsils

Question 11

what are the papillae of the tongue and their functions

Answer 11

filiform papillae - threadlike elevations and are responsible for touch

fungiform papillae - knoblike elevations that are responsible for taste

Question 12

what are landmarks of the face

Answer 12

forehead
temples
orbital area
external nose
zygomatic area
mouth and lips
cheeks
chin
external ear

Question 13

body planes

Answer 13

sagittal plane - divides body into unequal left and right positions

midsagittal plane - divides body into equal left and right halves

horizontal plane - divides body into superior and inferior portions

frontal - divides body into anterior and posterior portions

oblique planes - divides body into an angle

Question 14

which cells form tissues of the teeth

Answer 14

ameloblasts - form enamel
cementoblasts - cells that form cementum
fibroblasts - cells that form intercellular substance of pulp
odontoblasts - cells that form dentin

Question 15

what are the stages of tooth development

Answer 15

initiation stage - begins at 6 weeks, cells accumulate below the epithelium

bud stage - begins at 8 weeks, enamel starts to form

cap stage - enamel grows and expands

bell stage

Question 16

when do permanent mandibular dentition erupt

Answer 16

first molar: 6-7 y/o
central incisors :6-7 y/o
lateral incisors: 7-8 y/o
first premolars: 9-10 y/o
second premolars: 10-11 y/o
canine: 12-13 y/o
second molars: 11-13 y/o
third molars: 17-21 y/o

Question 17

when do maxillary permanent dentition erupt

Answer 17

First molar; 6-7 years
Central incisors; 7-8 years
Lateral incisors; 8-9 years
First premolar; 10-11 years
Second premolar; 10-12 years
Canine; 11-12 years
Second molar; 12-13 years
Third molar; 17-21 years

Question 18

when do primary max dentition erupt

Answer 18

Central incisors; 6-10 months
Lateral; 9-12 months
First molar; 12-18 months
Canine; 16-22 months
Second molar; 24-32 months

Question 19

when do primary mandibular dentition erupt

Answer 19

Central incisors; 6-10 months
Lateral incisors; 7-10 months
First molar; 12-18 months
Canine; 16-22 months
Second molar; 20-32 months

Question 20

what are the tooth code systems

Answer 20

international ( what we use)
universal
palmer

Question 21

how many roots are in each teeth

Answer 21

max - 11121333 (centrals to molars)

mandibular - 11111222 (centrals to molars)

Question 22

what are components of the alveolar process

Answer 22

cortical plate - outer covering of the spongy bone

alveolar crest - highest point of alveolar ridge

alveolar socket - cavity in alveolar bone that surrounds root of tooth

lamina dura - thin compact bone that lines alveolar socket