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CH 8-14 vocab
Dental Assisting Ch. 8-14 vocab
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Dentistry
Professional
02/14/2014

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Term
Embryology
Definition
the study of prenatal development
Term
histology
Definition
the study of the structure and function of the tissues on a microscopic level
Term
prenatal development
Definition
begins at the start of pregnancy and continues until birth
Term
embryonic period
Definition
extends from the beginning of the 2nd week to the end of the 8th week.
Term
conception
Definition
the union of male sperm and the ovum of the female
Term
succedaneous teeth
Definition
permanent teeth with primary predecessors
Term
peridontium
Definition
the tissue that supports the teeth in the alveolar bone
Term
ameloblasts
Definition
enamel-forming cells
Term
cementoblasts
Definition
cementum-forming cells
Term
cementoclasts
Definition
cells that resorb cementem
Term
osteoclasts
Definition
cells that resorb bone
Term
exfoliation
Definition
the normal process of shedding primary teeth
Term
stratified squamous epithelium
Definition
oral mucosa is made up of
Term
masticatory mucosa
Definition
oral mucosa that covers the hard palate, dorsum of the tongue, and gingiva
Term
odontoblasts
Definition
dentin-forming cells
Term
anterior jugular vein
Definition
vein that begins below the chin, descends near the midline, and drains into the external jugular vein
Term
cranium
Definition
eight bones that cover and protects the brain
Term
greater palatine nerve
Definition
serves the posterior hard palate and posterior lingual gingiva
Term
circumvallate lingual papillae
Definition
large papillae on the tongue
Term
infraorbital region
Definition
region of the head that is located below the orbital region
Term
lacrimal bones
Definition
paired facial bones that help form the medial wall of the orbit
Term
masseter muscle
Definition
strongest and most obvious muscle of mastication
Term
occipial region
Definition
region of the head overlying the occipital bone and covered by the scalp
Term
salivary glands
Definition
produce saliva
Term
sternocleidomastoid
Definition
one of the cervical muscles that divide the neck into anterior and posterior cervical triangles
Term
articular space
Definition
between the capsular ligament and the surfaces of the glenoid fossa and the conyle
Term
abducens
Definition
sixth cranial nerve, serves the eye muscle
Term
temporomandibular joint
Definition
on each side of the head that allows for movement of the mandible
Term
temporomandibular disorder
Definition
disease process associated with the temporomandibular joint
Term
trapezius
Definition
one of the cervical muscles that lift the clavical and scapula to shrug the shoulders
Term
xerostomia
Definition
decreased production of saliva
Term
parotid duct
Definition
associated with the parotid salviary gland, which opens in the oral cavity at the parotid papilla
Term
canthus
Definition
fold of tissue at the corner of eyelids
Term
ala of the nose
Definition
winglike tip of the outer side of each nostril
Term
philtrum
Definition
rectangular area from under the nose to the midline of the upper lip
Term
tragus of the ear
Definition
cartilage projection anterior to the external opening of the ear
Term
nasion
Definition
midpoint between the eyes
Term
glabella
Definition
smooth surface of the frontal one directly above the root of the nose
Term
septum
Definition
tissue that divides the nasal cavity
Term
anterior naris
Definition
also referred to as the nostril
Term
mental protuberance
Definition
part of the mandible that forms the chin
Term
vermilion boarder
Definition
darker-colored border around the lip
Term
commissure
Definition
angle at the corner of the mouth where the upper and lower lips join
Term
vestibule
Definition
space between the teeth and the inner mucosa lining of the lips and cheeks
Term
fordyce's spots
Definition
normal variations that sometimes appear on the buccal mucosa
Term
labial frenum
Definition
band of tissue that passes from the facial oral mucosa at the midline of the arch to the midline of the inner surface of the lip
Term
gingiva
Definition
masticatory mucosa that covers the alveolar processes of the jaws and surrounds the necks of the teeth
Term
dention
Definition
natural teeth in the dental arch
Term
deciduous
Definition
baby (primary) teeth
Term
occlusion
Definition
natural contact of the maxillary and mandibular teeth in all positions
Term
succedaneous teeth
Definition
permanent teeth that replace primary teeth
Term
anterior
Definition
teeth in the front of the mouth (k9-k9, 6-11; 27-22)
Term
maxilla
Definition
upper jaw
Term
mandibal
Definition
lower jaw
Term
quadrant
Definition
one fourth of the dention
Term
sextant
Definition
one sixth of the dention
Term
mesial surface
Definition
side of tooth towards the midline
Term
distal surface
Definition
side of tooth away from the midline
Term
masticatory surface
Definition
chewing surface of the teeth
Term
interproximal space
Definition
between adjacent tooth surfaces
Term
embrasure
Definition
triangle space in the gingival direction between the proximal surface of 2 adjoining teeth
Term
centric occlusion
Definition
maximum contact between the occluding surfaces of the maxillary and mandibular teeth
Term
functional occlusion
Definition
when teeth contact during biting and chewing
Term
malocclusion
Definition
abnormal positional relationship of the maxillary and mandibular teeth when they are in centric occlusion
Term
curve of spree
Definition
curvature formed by the maxillary and mandibular arches in occlusion
Term
cusp
Definition
major elevation on the masticatory surface of canines and posterior teeth
Term
fossa
Definition
wide, shallow depression on the lingual surface of the anterior teeth
Term
furcation
Definition
area between two or more root brances
Term
canine eminence
Definition
external vertical bony ridge on the labial surface of canines
Term
central groove
Definition
most prominent developmental groove on posterior teeth
Term
cingulum
Definition
raised, rounded area on the cervical third of the lingual surface
Term
imbrication
Definition
slight ridges that run mesiodistally in the cervical third of the teeth
Term
mamelon
Definition
rounded enamel extension on the incisal ridge of incisors
Term
marginal ridge
Definition
rounded, raised boarder on the mesial and distal portions of the lingual surface of anterior teeth and the occlusal table of posterior teeth
Term
incisal edge
Definition
ridge on the permanent incisors that appears flattened on the labial, lingual, or incisal view after eruption
Term
inclined cuspal plane
Definition
sloping areas between cusp ridges
Term
nonsuccedanious
Definition
tooth that does not replace a primary tooth
Term
morphology
Definition
study of the form and shape of teeth
Term
caries
Definition
tooth decay
Term
demineralization
Definition
loss of minerals for the tooth
Term
remineralization
Definition
replacement of minerals in the tooth
Term
mutans streptococei
Definition
primarily responsible for caries
Term
lactobacillus
Definition
bacteria that produces lactic acid from carbohydrates
Term
plaque
Definition
colorless sticky mass of microorganisms that adhere to tooth surface
Term
cavitation
Definition
formation of a cavity or hole
Term
incipient caries
Definition
tooth decay that is beginning to form
Term
rampant caries
Definition
decay that develops rapidly and is widespread
Term
pellicle
Definition
thin coating of salviary materials that are deposited on tooth surfaces
Term
fermentable carbohydrate
Definition
simple carbs such as sucrose, fructose, lactose, and glucose
Term
CAMBRA
Definition
managing dental caries by risk assesment
Term
plaque
Definition
soft deposit on teeth that consist of bacteria and bacterial byproduct
Term
calculus
Definition
made up of calcium and phosphate salts in saliva that become mineralized and adhere to tooth surface
Term
periodontium
Definition
structures that surround, support and are attached to the teeth
Term
periodontal disease
Definition
diseases of the periodontium
Term
supragingival
Definition
area above in gingiva
Term
subgingival
Definition
area below the gingiva
Term
gingivitis
Definition
inflammation of the gingival tissue
Term
periodontitis
Definition
inflammatory disease of the supporting tissues of the teeth
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