sensor Placement and errors

Question 1

what helps you place the X-ray tube in the correct spot

Answer 1

Rinn device ( that circular thing)

Question 2

what to do about sensitve patients when placing sensor

Answer 2

Edge ease
Mouth wash
Close slowly
Communcation

Question 3

How should the chair be situated for X-rays

Answer 3

Upright

Question 4

What color ring is for Anterior periapicals

Answer 4

Blue ring

Question 5

How should the sensor be placed for maxillary anteriors

Answer 5

Rolling motion to place sensor into patients mouth
halfway back
Distal edge placed against palate
Parallel to long axis of Max anterior teeth (not up against it

Question 6

what to do for added stability when doing maxillary anteriors

Answer 6

cotton roll under the tab

Patient hold metal positioning arm at the bend

Question 7

sensor size for maillary central incisor

Answer 7

Size 1 placed verticak

Question 8

How far should the bite blcok go for a maxillary central incors

Answer 8

Entire length of the biteblock to position on palate

Question 9

Sensor size for max lateral inciors

Answer 9

Verticle size 1

Question 10

Sensor size for maxillary canine

Answer 10

Vertical size 1

Question 11

where is sensor placed for max canine

Answer 11

Away from teeth

Question 12

How is sensor placed for mandibular anterior

Answer 12

Flat ontop of tongue
insert horizontally to the lower first molar region
Roll sensor upright so bend in metal bar is even with center of nostrils

Question 13

should you push down on the tongue when doing mandibular anteriors

Answer 13

yes, acts like a coushion

Question 14

How far should the ring go farward

Answer 14

As far as possible to his chin

Question 15

sensor for mandibular central incisor

Answer 15

Size 1 verticle

Question 16

Sensor placement for MAndibular central incisor

Answer 16

Behind the 2 central incisors

Question 17

sensor for mandibular canine

Answer 17

size 1

verticle

Question 18

sensor placment for Mand central incisor

Answer 18

Directly behind canin

Question 19

how to place sensor for maxillary posterior

Answer 19

Retract cheek and guide sensor in mouth between 8 and 9 (vault of palate for room)
push back till level with desired teeth
angle sensor past the midline of the mouth

Question 20

how far past apicies should the sensor be placed in the mouth

Answer 20

2-3mm

Question 21

Sensor for max premolar

Answer 21

Size 2 horizontal

Question 22

location of sensor for max premolar

Answer 22

away from teeth

Question 23

sensor for max molar

Answer 23

Size 2 horizontal

Question 24

location of sensor for max molar

Answer 24

Toward the center of plate

Question 25

How to place a mandibular posterior sensor

Answer 25

- Retrat check and place front edge of sensor into mouth between tongue and teeth at a downward angle of 45 degrees for comfort - slide sensor back to molar are

Question 26

what to do when placing sensor if patient has tori

Answer 26

Edge ease

Question 27

sensor for mandibular premolar

Answer 27

Size 2 horizontal

Question 28

Location of sensor for mandibular premolar

Answer 28

Close to teeth | parallelto lingual surface of mandibular teeth

Question 29

Sensor for mandibular molar

Answer 29

size 2 | horizontal

Question 30

Location of senor for mandibular molar

Answer 30

Close to teeth | parallel to lingual surface of teeth

Question 31

how to place a horizontal bitewing

Answer 31

between tongue and teth with tab resting on teeth wire on other side of mouth patient closes teeth and as closing swing the front edge of the aiming device to lateral incior to open contacts

Question 32

sensor for premolar bitewing

Answer 32

size 2 horizontal or vertical

Question 33

sensor for molar bitewing

Answer 33

Size 2 horizontal or vertical

Question 34

what do you do if sensor canot be placed parallel

Answer 34

USe bisecting angle technique

Question 35

when is the image still adequate when angulating sensor

Answer 35

No greater sensor angle of 20 degrees in relation to long axis beam directed at 90 degrees to the sensor

Question 36

can a digital image be ajusted after exosure

Answer 36

No (several factors needed for good image)

Question 37

what is critacl to a diagnositc digital image

Answer 37

Quality control of technical factors and sensor positioning

Question 38

cause of overlap

Answer 38

Incorrect horizontal angulation

Question 39

Cause of incisal edge not being visible

Answer 39

Incorrect sensor placemnt

Question 40

Cause of elongation

Answer 40

Decreaesd vertical ingulation

Question 41

Cause of foreshortening

Answer 41

Increased vertical angulation

Question 42

cause of blurred image

Answer 42

Movement

Question 43

Cause of cone cut

Answer 43

X-ray beam not centered on receptor

Question 44

Cause of underexposre

Answer 44

less exposure

Question 45

CAuse of PSP plate articats

Answer 45

Scratched paltes | Plates not erased

Question 46

what is foreshortening and its cause

Answer 46

Teeth seems smaller since vertical angulation is too large

Question 47

what is elongation and cause

Answer 47

Teeth look too long due to verttical angulation being too little

Question 48

the max amount of electrons a pixel can hold

Answer 48

Full Well Capacity (Depends on CCD type)

Question 49

the process of Oversaturating the CCD

Answer 49

Blooming

Question 50

How does Blooming occuring

Answer 50

saturated pixels flow intoneighboring cells

Question 51

how to stop static

Answer 51

moisten cotton swab with rubbing alcohol and wipe USB and sensor connection

Question 52

what can static cause

Answer 52

Autofiring and self triggers to produce multiple blank images

Question 53

Tips to maximize comfort

Answer 53

Set everything up before placing in patient Start with anterior USe cotton rolls and eddge ease place sensor skillfully