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intro to clinical procedures
Hard Tissue Exam quiz 10-22-13
47
Dentistry
Undergraduate 3
10/20/2013

Additional Dentistry Flashcards

 


 

Cards

Term
what 6 things must be present in decay process?
Definition

-susceptible tooth

-microorganisms

-cariogenic diet

-time

-frequency of exposure

-types of COH

Term
what items in the decay process can be controlled?
Definition

diet

time or frequency of ingested foods

Term
what organisms are involved in the decay process?
Definition

Strep mutans

strep sobrinos

lactobacillus

Term
what do microorganisms do to sugar?
Definition
break it down to acid
Term
normal ph of tooth?
Definition
7
Term
what is ph of enamel when it is affected?
Definition
4.5-5.5
Term
root surface ph is what ?
Definition
6-6.7
Term
phase 1 decay is?
Definition
incipient, enamel only white spots are first clinical sign
Term
phase II of decay
Definition
breaks down enamel over white spots and goes through enamel rods and the DEJ.
Term
what is the process of decay formation once through enamel?
Definition

-through enamel rods

-dentinal tubules

-under surface

Term
where do enamel caries usually happen?
Definition

pits and fissures

smooth surface

 

Term
cemental root caries radicular when where?
Definition
between roots
Term
if cemental caries are soft and leathery, are they active?
Definition
yes soft and leathery is active
Term
if there are hard cemental cavities are they active?
Definition
no they are arrested
Term
what type of caries are common among infants/children?
Definition
baby bottle caries due to constant drip of bottle affecting ph over a long period of time.
Term
where are childhood caries most likely to be?
Definition

facial of maxillary anteriors

 

and occlusal of molars

Term
acute caries
Definition
rampant, progressing rapidly
Term
chronic caries
Definition
slowly progressing
Term
arrested caries
Definition
lesion has been reversed
Term
recurrant caries
Definition
new decay next to existing restoration
Term
backwards caries
Definition

lateral spread at DEJ

small surface lesion

large lesion underneath

Term
what are some functions of saliva
Definition

-lubrication for mouth tissue and digestion

-self cleansing

-initial food breakdown

-protects

-buffers

 

Term
what are some causes of xerostomia?
Definition

radiation

 

surgical removal of salivary glands

 

Sjorgens (autoimmune)

 

medications (cause dry mouth)

Term
what are some guidlines for GV Black's class I where caries are?
Definition

restorative

pits and fissures of posterior teeth

buccal and lingual pits of molars 

composits or amalgum used to fill

lingual pits of maxillary incisors

can be detected with air, mirror explorer

Term
G.V. Black's class II
Definition

detected best with bitewing x-ray 

found in proximal surfaces of posterior teeth

also can affect occlusal 

Term
G.V. Black's class III
Definition

proximal of anterior teeth

transillumination is good to detect along with PA (PA is best)

Term
G.V. Black's class IV
Definition
proximals of anterior teeth including incisal edge
Term
G.V. Black's class V
Definition
on gingival third of anterior and posterior teeth a line close to gingiva
Term
G.V. Black's VI
Definition

cusp tips of posterior teeth 

incisal edge only on anteriors

Term
If something is simple in complexity
Definition
only involves one surface
Term
if something is compound in complexity?
Definition
affects 2 surfaces
Term
if something is complex in complexity
Definition
involves 3 or more surfaces
Term
enamel hypoplasia
Definition

incisors, canines and molars most affected

can be white or brown in color

defect that was a disturbance in tooth formation enamel matrix.

Term
amelogenesis imperfecta
Definition
enamel forming problem
Term
what are some circumstances that can cause enamel hypoplasia?
Definition

-environmental

-nutrition deficits

-fever

-congenital syphilis

-flourosis

-rh factor

Term
turners tooth
Definition
a damaged tooth enamel hypoplasia
Term
attrition
Definition

wearing away of tooth surface tooth to tooth contact

usually occlusal and incisal

Term
bruxism
Definition
night grinding
Term
abrasion
Definition
mechanical wearing away of tooth surface (due to intense brushing)
Term
erosion
Definition

loss of tooth surface due to chemical involvement.

bulemia

acid reflux

lemon slices

hydrochloric acid

Term
abfraction
Definition
occurs at CEJ from flexing tooth enamel fractures
Term
enamel  flaking
Definition
small sections of enamel flake off
Term
tooth crack
Definition
minor crack in tooth
Term
cusp fracture
Definition
direct physical trauma
Term
crown fracture
Definition
complete fracture of crown
Term
what types of fractures are possible?
Definition

enamel

crown and dentin

crown and pulp

close to CEJ

root fracture

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