dentistry

Question 1

most common C/S of dental pain?

Answer 1

nothing- they will hide pain and dental disease is insidious

Question 2

4 common causes of oral pain

Answer 2

periodontal disease, fractured teeth, tooth resorption, malocclusion

Question 3

what steps are needed to assess periodontal disease?

Answer 3

dental probing, intraoral rads

Question 4

what are the supporting structures of the teeth?

Answer 4

periodontal ligament, cementum, alveolar bone, gingiva

Question 5

periodontal pocket

Answer 5

probe measurment from gingival margin-> bottom of pocket

Question 6

gingival recession

Answer 6

cementoenamel junction-> gingival margin

Question 7

total attachment loss

Answer 7

gingival recession + periodontal pocket

Question 8

% bone loss

Answer 8

measure from cementoenamel junction to where bone is- should be at junction

Question 9

periodontal disease staging

Answer 9

1- gingivitis only (no attachment loss)
2- <25% attachment loss
3- 25-50% attachment loss
4- >50% attachment loss

Question 10

tx for stages of periodontal disease

Answer 10

1- professional cleaning
2- cleaning, root planing
3- cleaning, root planing, extraction, refer for GTR
4- extraction

Question 11

how to diagnose tooth resorption

Answer 11

intraoral rads

Question 12

what is tooth resorption?

Answer 12

gingiva growing over tooth-> resorption of root structure

Question 13

stage vs type of lesion

Answer 13

stage- how deeply it penetrates the tooth
type- how it affects the roots

Question 14

tooth resorption stages

Answer 14

1- loss of cementum/enamel
2- extends into dentin
3- extends to pulp cavity
4- loss of tooth structure
5- crown is gone

Question 15

tooth resorption types

Answer 15

1- roots intact
2- roots resorbing
3- combination (2 rooted teeth)

Question 16

pathogenesis of tooth resorption

Answer 16

thinning of peridontal ligament-> exposure of tooth to alveolar bone-> osteoclasts resorb tooth

Question 17

FORL tx based on stage and type

Answer 17

stages 2-4-> extract
type 1- extract
2- crown amp
3-combination

Question 18

crown amputation checklist

Answer 18

root resorption (being replaced)
no oropharyngeal inflammation
no endodontic disease
no advanced periodontal disease

Question 19

benefits of intraoral rads

Answer 19

visualize entire tooth
dx
monitor tx progression
client education

Question 20

minimum rads

Answer 20

should be full mouth or:
teeth with abnormal probing
areas w missing teeth
ANY tooth resorption

Question 21

dental radiography settings

Answer 21

kVp and mA are fixed-> only time changes

Question 22

dental rad positioning techniques

Answer 22

parallel or bisecting angle

Question 23

parallel technique is used for:

Answer 23

mandibular premolars and molars

Question 24

parallel technique- tooth root and film are:

Answer 24

parallel

Question 25

bisecting angle technique is used for:

Answer 25

canines, incisors, maxillary premolars/molars

Question 26

describe bisecting angle technique

Answer 26

the generator is parallel to the angle b/w the film and the tooth root

Question 27

which tooth has superimposition of roots

Answer 27

maxillary 4th premolar-> distal root, mesial buccal and mesial palatal root

Question 28

describe beam shift technique

Answer 28

SLOB rule: the lingual (palatal) root moves in the same direction as the beam, the buccal root goes the opposite direction of the beam

Question 29

what will anterior/posterior oblique shift do to the roots?

Answer 29

anterior-> lingual goes forward
posterior- buccal goes forward

Question 30

angulation errors

Answer 30

foreshortening, elongation

Question 31

what do foreshortening and elongation do to the image? how to correct?

Answer 31

foreshortening- too straight on, lower angle of beam
elongation- too angled, need to shorten

Question 32

abnormal features on dental rads

Answer 32

pulp canal width, alveolar bone height, periapical pathology