8/23 - Virtual Treatment Planning, Trios, Intraoral Scanning

Question 1

what are the different types of imaging

Answer 1

1. periapical
2. panoramic
3. cone-beam computed tomography

Question 2

advantages of PA radiograph

Answer 2

1. high resolution
2. detailed
3. easy aquisition
4. low exposure
5. inexpensive

Question 3

disadvantages of PA radiograph

Answer 3

1. unpredictable magnification
2. small imaged area (don’t get broad view of pt)
3. 2D image

Question 4

indications for a PA

Answer 4

1. determine health of individual teeth
2. evaluate bone around implant
3. determine angulation during implant placement

Question 5

panoramic is also called what

Answer 5

orthopantogram

Question 6

advantages of pano

Answer 6

1. easy acquisition
2. image both arches (broad view)
3. anatomical assessment
4. low exposure
5. inexpensive

Question 7

disadvantages of pano

Answer 7

1. unpredictable magnification
2. lacks details
3. 2D image

Question 8

what is the magnification of a pano

Answer 8

~25% horizontal and vertical magn

Question 9

indications for a pano

Answer 9

1. screening image
2. broad pic, image anatomical structures
3. rough estimate of distances between teeth and vital structures

Question 10

what does CBCT stand for

Answer 10

cone beam computed tomography

Question 11

advantages of CBCT

Answer 11

1. 3D representation
2. predictable magnification
3. detailed
4. digital
5. images entire arch
6. low dose (compared to medical grade CBCT or CAT scan)

Question 12

disadvantages of CBCT

Answer 12

1. special equipment
2. expensive
3. images entire arch
4. requires ‘simulation’ software programs

Question 13

about how much are the CBCT simulation software programs

Answer 13

$5000

Question 14

indications for CBCT

Answer 14

1. implant evaluation
2. pathology

Question 15

Virtual implant treatment planning programs utilize what type of files

Answer 15

raw dicom files (data from CBCT)

Question 16

virtual implant treatment planning programs allow simulation of what

Answer 16

implant placement virtually

Question 17

what simulation software is the sister company for Astra

Answer 17

Simplant

Question 18

what are examples of simulation software

Answer 18

1. Simplant
2. coDiagnosiX
3. Planmeca Romexis
4. Anatomage/Invivo
5. Nobel Clinician
6. Blue Sky Bio

Question 19

what are the different anatomical planes that can be used for simulation software

Answer 19

axial, coronal, sagittal

Question 20

are you able to tell if a pt has a bone graft or sinus lift with simulation software

Answer 20

YES

Question 21

using the simulation software, can you determine if a significant sinus lift is needed prior to placing implant

Answer 21

YES

Question 22

All phase I treatment must be completed prior to ___

Answer 22

CBCT

Question 23

what is part of phase I treatment

Answer 23

1. direct restorations
2. periodontal therapy
3. endodontic therapy
4. extractions
5. interim prostheses

Question 24

T/F: comprehensive exams must be completed for all patients except referral patients

Answer 24

FALSE! comprehensive exams must be done including referral patients

Question 25

what is done during comprehensive exam

Answer 25

1. clinical exam 2. probe depths 3. radiographs

Question 26

after completing comprehensive exam at step 1, what is done

Answer 26

interdepartmental consultation with prosth

Question 27

if phase I treatment is necessary, what must be done

Answer 27

initiate disease control treatment plan - don't include anything dealing with implant

Question 28

what is the treatment plan during step 1

Answer 28

1. diagnostic casts 2. implant evaluation 3. CBCT (max/mand) 4. 3D treatment plan

Question 29

how much is CBCT

Answer 29

$175

Question 30

how much is implant evaluation

Answer 30

$100 nonrefundable

Question 31

how long is CBCT acquisition appointment

Answer 31

1/2 hour

Question 32

who will interpret CBCT scan and write a report

Answer 32

radiologist

Question 33

are we responsible for everything captured in CBCT image? will we receive an email when report is ready?

Answer 33

yes, yes

Question 34

what to do once you have a CBCT report

Answer 34

1. correlate radiographic findings w/ clinical evaluation 2. schedule 1st look of CBCT w/ prosthodontic faculty

Question 35

what are indications for scanning

Answer 35

1. fixed 2. removable 3. implants 4. ortho - aligner tracking 5. restorative 6. diagnosis/monitoring

Question 36

how can you use scanning for diagnosis/monitoring

Answer 36

1. gingival changes 2. wear (bruxism) 3. ortho relapse 4. soft/hard tissue monitoring

Question 37

what Trios do we have at school

Answer 37

1. Trios 3 - cordless 2. Trios 3 Basic - w/ cord

Question 38

what lab to select when implant planning

Answer 38

implant concierge

Question 39

what lab to select when completing crown or implant restoration

Answer 39

Creighton University Fixed Lab

Question 40

what is the delivery date for a Creighton restoration

Answer 40

3 weeks from scan

Question 41

where are scanning tips located

Answer 41

dispensing

Question 42

what is the difference between the scanner tip vs protective cover

Answer 42

scanning tip has a mirror and protective cover has plastic button

Question 43

does the scanner require time to warm up

Answer 43

yes it might

Question 44

when scanning, what arch do you start with

Answer 44

lower arch

Question 45

proper scanning generates what

Answer 45

clicking sound

Question 46

is it okay if the image on the lower right corner is blurry?

Answer 46

NO! should be clear

Question 47

outline of the scanning should be what color? if it is what color, it is not scanning.

Answer 47

green; if it's red, it's not working

Question 48

how far from the occlusal should the tip of scanner be placed

Answer 48

~1 inch

Question 49

what do you do if the scanner starts losing a scan

Answer 49

go back to a scan already done and it will usually re-recognize and then continue to the new location

Question 50

when completing scan for implants, what must you capture

Answer 50

1. edentulous area including several mm's of mucosa 2. clear deifnition of adjacent teeth

Question 51

what are different post scan functions

Answer 51

1. trim 2. lock 3. zoom 4. HD photo functions

Question 52

order of the different types of scans

Answer 52

lower -> upper -> occlusion

Question 53

green areas indicate what?

Answer 53

more data is needed

Question 54

yellow areas/arrows indicate what

Answer 54

more data is needed near preparation

Question 55

do you scan the occlusion in one whole or separately

Answer 55

separately under 'Bite 1' and 'Bite 2'

Question 56

how do you typically start oclusion scan

Answer 56

typically start w/ upper molar then move towards canine. begin on single side, scanning distal to mesial, capturing hard and soft tissue w/ rolling motion

Question 57

during analysis, right side tool bar allows for what

Answer 57

position, colorization, annotation and individual arch removal

Question 58

during analysis, lower tool bar provides what

Answer 58

potions for direction, margin, clearance, annotation, shade and HD photos

Question 59

how to finalize and send a scan

Answer 59

1. click tools icon to reveal post-processing 2. envelope should be present that will allow you to send processed scan to the lab of choice

Question 60

what are the CBCT atomic planes

Answer 60

transverse, coronal, sagittal

Question 61

Trios scan is what kind of f ile

Answer 61

.stl

Question 62

T/F: any pathology in CBCT is your liability and you need to address it appropriately

Answer 62

TRUE

Question 63

most reliable technique for final implant planning is

Answer 63

CBCT

Question 64

what does STL stand for

Answer 64

1. Standard Tesselation Language file format 2. Stereolithography file format 3. Standard Triangle Language file format

Question 65

do CBCT have high dosage

Answer 65

no

Question 66

do PA radiographs have high resolution

Answer 66

Yes