Radiographic Interpretation

Question 1

radiographs aid in:

Answer 1

diagnosis of pero disease
determination of the prognosis
Treatment options
Evaluation of the outcome of treatment

Question 2

are radiographs a substitute for clinical examination

Answer 2

NO

Question 3

Without radiographic images, clinicians can not effectively evaluate:

Answer 3

Alveolar crestal bone architecture
crown to root/calculus presence
Possible vertical or furcation defects
Amount of horizontal bone loss

Question 4

Three basic intraoral radiographic techniques for assessment of the bone status:

Answer 4

horizontal bitewing
vertical bitewing
periapical

Question 5

When horizontal bitewing are usually ordered when

Answer 5

patient has suspected mild to moderate horizontal bone loss

Question 6

Horizontal bitewing when properly positioned, you should see

Answer 6

superimposition of the buccal and lingual/palatal cusps
a sharp or well defined alveolar crestal margin
no horizontal overlap between adjacent teeth

Question 7

Vert. bitewing are useful when

Answer 7

patient has demonstrated deep probing depths AND expects moderate to serve hori. bone loss

Question 8

periapical radiograph does

Answer 8

assessment of bone height but distort the deistnace between alveolar osseous crest and CEJ

Question 9

two things need from radiographs:

Answer 9

root length

bone height

Question 10

are CEJ line parallel with bone when there is bone loss?

Answer 10

NO

Question 11

in the interdental septum, CEJ to the crest of the bone at each tooth surface, the measurement is roughly

Answer 11

1.5 to 2.0 mm

Question 12

sulcus mean ____, pocket means _____

Answer 12

healthly, disease

Question 13

airo-thema means

Answer 13

red

Question 14

PDL space can be seen as

Answer 14

thin radiolucent line between root and outline of root

Question 15

PDL width can diagnosis various conditions such as

Answer 15

trauma

Question 16

PDL space is

Answer 16

100 to 250 microns

.1 to .25 mm

Question 17

PDL stats

Answer 17

.1 to .25 mm
widest during heavy occlusion
thinner in nonfunctional teeth   
surface area of socket wall
 - 150-275 sq mm single
 - 450 for multi

Question 18

bone loss is generally ____ than it appears in radiographs

Answer 18

greater

Question 19

radiographs show ___ servere bone loss than actually present

Answer 19

less

Question 20

how much bone mineral density is lost before it is detected radiographically

Answer 20

30%

Question 21

radiographs show

Answer 21

amount remaining rather than amount lost
does not indicate internal morphology/depth of defect
does not show facial/lingual involvement

Question 22

horizontal bone loss shows

Answer 22

symmetric lost of bone on both mesial and distal surface that architecture appears to be flat

Question 23

vertical bone lost are

Answer 23

funnel-shaped and plunge apically

Question 24

distribution of bone loss points to

Answer 24

location of destructive local factors

Question 25

bone loss per year for healthy people

Answer 25

.1 mm

Question 26

loss of bone in the furcation areas of molar teeth may occur from:

Answer 26

periodontits
endodontic infection
root perforation during procedures
occlusal tramuma

Question 27

loss of bone in the mesial and distal furcation of max. molars may present as a

Answer 27

furcation arrow

Question 28

tooth anomaly such as cervical enamel pearl can lead to bone loss:

Answer 28

incidence: 1.1%-9.7% (mean 2.69%)

Predilection for maxillary third> second>first molars

Question 29

Grade I furcation involvement of

Answer 29

Max second molar

Question 30

Grade II furcation involvement of

Answer 30

first molar

Question 31

radiographs are ___ sensitive indicator of calculus

Answer 31

not

Question 32

Calculus shows up as ___, and location at

Answer 32

small spurs, cementoenalmel junction at mand or circumference of max molar

Question 33

Periodontal abscess def.

Answer 33

acute,destructive process in pero. resulting in localized collection of pus communicating with oral cavity through gingivalsulcus and not arising from the tooth pulp

Question 34

appearance of periodontal abcess is generally a

Answer 34

discrete are of radiolucency along the lateral aspect of the root

Question 35

Features of aggressive of periodontitis include:

Answer 35

• rapid rate of attachment and bone loss
• minimal local factors
• familial aggregation of diseased individuals (Genetics)

Question 36

radiograph and clinical periodontal examination should

Answer 36

complement each one another

Question 37

Actual clinical bone loss is ___ than radiographic bone loss

Answer 37

more