Chpt 21- Bite Wing Techniques

Question 1

What does a bit wing image include?

Answer 1

the crowns of the maxillary and mandibular teeth, inter proximal areas and areas of the crestal bone

Question 2

what are bing wing images used to detect?

Answer 2

interproximal caries and crestal bone levels

Question 3

define interproximal

Answer 3

between two adjacent surfaces

Question 4

define interproximal examination

Answer 4

intra oral examination used to inspect the crowns of both maxillary and mandibular teeth on a single image

Question 5

define bite wing receptor

Answer 5

type of receptor used in interproximal examination the wing wing receptor has a wing or tab that the patient bites on to stabilize the receptor

Question 6

define alveolar bone

Answer 6

bone that supports and encases the roots of teeth

Question 7

define crestal bone

Answer 7

coronal portion of alveolar bone found between teeth

Question 8

define contact areas

Answer 8

the area of a tooth that touches an adjacent the area where adjacent tooth surfaces touch eachother

Question 9

define horizontal bite wing

Answer 9

the bite wing receptor is places in the mouth with the long portion of the receptor in a horizontal direction

Question 10

define opened contact

Answer 10

on a dental image opened contact appear as thin radiolucent lines between adjacent tooth surfaces

Question 11

define overlapped contacts

Answer 11

on a dental image the area where the contact area of one tooth is superimposed over the contact area of an adjacent tooth

Question 12

define vertical bite wing

Answer 12

the bite wing recpetor is places in the mouth with the long portion of the receptor in a vertical direction

Question 13

Fill in the blank:
The receptor is placed in the mouth ______ to the crowns of both maxillary and mandibular teeth

Answer 13

parallel

Question 14

what vertical angulation should be used when taking a bite wing image

Answer 14

+ 10 deg

Question 15

what is used to stabilize the receptor?

Answer 15

a beam alignment device or bite wing tab

Question 16

how is a beam alignment device used?

Answer 16

to position an intra oral receptor in the mouth and maintain the receptor in position during the imaging procedure

Question 17

what is an example of a beam alignment device?

Answer 17

Rinn xcp extension cone paralleling system

Question 18

what is recommended for bite wing projections

Answer 18

Rinn XCP system

Question 19

what is used to limit amount of raditation exposure

Answer 19

collimator

Question 20

What are 3 sizes of receptors

Answer 20

0,2,3

Question 21

what is size 0 used for?

Answer 21

posterior teeth of children with primary dentition Always placed in horizontal postion

Question 22

what is a size 2 receptor used for and what position

Answer 22

posterior teeeth in older children and adults, can be placed vertically and horizontal

Question 23

what is a size 3 receptor used for? and what position

Answer 23

longer and narrower only used for bite wing exposures in horizontal position

Question 24

which receptor is least recommended

Answer 24

size 3

Question 25

how can angulation be utilized

Answer 25

by moving the pid in both vertical or horizontal planes

Question 26

what is horizontal angulation

Answer 26

positioning of the central ray in a horizontal or side to side plane

Question 27

what does correct horizontal angulation look like

Answer 27

the dental ray is directed perpendicular to the curvature of the arch and through the contact areas of the teeth contact areas are opened and examinations for caries can be completed

Question 28

what does incorrect horizontal angulation look like

Answer 28

results in overlapped contact areas and cannot be used in examination may require a retake

Question 29

what is vertical angulation

Answer 29

positioning the pid in a vertical or up and down plane, may be positive or negative

Question 30

what does it mean to have a positive angulation

Answer 30

if the PID is positioned above the occlusal plane and the central ray is directed down

Question 31

what does a negative angulation mean

Answer 31

if the PID is positioned below the occlusal plane and the central ray is directed upward

Question 32

Rules for Bite Wing Techniques how must the receptor be placed?

Answer 32

to cover the prescribed area of teeth

Question 33

Rules for Bite Wing Techniques How must the bite wing receptor be positioned in order to cover the crowns of both the maxillary and mandibular teeth?

Answer 33

parallel

Question 34

Rules for Bite Wing Techniques The receptor must be ______ when the patient bites on the bite wing tab or the bite block of the beam alignment device

Answer 34

stabalized

Question 35

Rules for Bite Wing Techniques What type of angulation is it when a bite wing tab is used with film or PSP sensors having the central ray of the x ray beam directed at +10 deg.

Answer 35

vertical angulation

Question 36

Rules for Bite Wing Techniques what must the x ray beam be directed through in horizontal angulation

Answer 36

contact areas between teeth

Question 37

Rules for Bite Wing Techniques Why must the x ray beam be centered on the receptor in bite wing images

Answer 37

to ensure all areas of the receptor is are exposed

Question 38

what happens if the x ray beam is not centered on the receptor

Answer 38

only a partial image could be produced

Question 39

When taking bite wing images you should position the patient head so that the maxillary arch is ______ to the floor and the midsagital (midline) is _________ to the floor

Answer 39

1. parallel 2. perpendicular

Question 40

what protective equipment should go on the patient before taking x rays

Answer 40

led apron with a thyroid collar

Question 41

what should the patient remove before having x ray images taken

Answer 41

eyeglasses and all objects from the mouth (dentures, retainers and gum etc)

Question 42

what is the exposure sequence for receptor placements

Answer 42

1. expose the premolar bite wing receptor first 2. expose the molar bite wing receptor next 3, repeat on opposite sides

Question 43

What must the premolar bite wing always include

Answer 43

the distal of the canine (cuspid)

Question 44

what must a molar bite wing always include

Answer 44

the distal of the second pre molar ( bicuspid)

Question 45

What are vertical bite wings used for

Answer 45

to examine the level of alveolar bone

Question 46

What is edentulous spaces

Answer 46

no teeth

Question 47

what may be to be done to support edentulous spaces during x rays

Answer 47

placing a cotton roll in the area of the missing tooth to support the bite wing tab or beam alignment device

Question 48

what may you need to do if the paitent has tori

Answer 48

place the receptor between the tori and the tongue