Final Review- Lecture 3

Question 1

Challenges to digital implant impressions include:

Answer 1

1. pre-op scan
2. scan body
3. emergence profile scan

Question 2

With digital implant treatment planning, both our planning software and what we can see in the mouth are extremely accurate and BUT:

Answer 2

the correlation between them is the most important thing

Question 3

The two most important aspects of digital implant treatment planning to correlate are:

Answer 3

1. Planning software
2. Clinical evidence

Question 4

Some examples of plant planning software include:

Answer 4

1. 3shape
2. Simplant
3. BlueSkyBio
4. coDiagnostiX
5. DTX studio

Question 5

CBCT indications in implant dentistry are used in both:

Answer 5

1. pre-op analysis
2. post-op analysis

Question 6

List the CBCT indications for pre-op analysis in implant dentistry:

Answer 6

1. anatomic analysis
2. site development using grafts
3. computer-assisted treatment planning

Question 7

List the CBCT indications for post-op analysis in implant dentistry:

Answer 7

1. Diagnosing complications
2. Verifying implant placement

Question 8

The intraoral scan is used to:

Answer 8

create the intaglio of an implant guide

Question 9

The CBCT allows us to visualize the:

Answer 9

hard tissue to plan the procedure

Question 10

What is the most important part of any digital workflow?

Answer 10

ALIGNMENT (between the scan of the mouth and the CBCT)

Question 11

For implant treatment planning of a dentate case, the requirements are:

Answer 11

1. STL of an intraoral scan
2. DICOM volume of the site

Question 12

What do the following colors represent?

Yellow-
Red-
Green-
Blue-

Answer 12

Yellow- path of drill
Red- implants
Green- implant sleeve
Blue- intraoral scan

Question 13

What if we are doing an implant over denture? Can we align an intraoral scan to a CBCT?

Answer 13

No- CBCTs only visualize hard tissue, so there is no way to align the soft tissue scan

Question 14

Because we cannot align a CBCT scan with an intraoral scan for an implant over denture, how can we align these two aspects?

Answer 14

Using a denture with fiduciary markers

Question 15

Why might we put fiduciary markers on a denture for aligning CBCT scan with intraoral scan for an implant over denture?

Answer 15

Because the denture is not very radiopaque (we can use these radiopaque markers and take 2 CBCTs, one with the patient wearing the denture and one of just the denture

Question 16

What is the CBCT of just the denture used for?

Answer 16

Used to create the intaglio of the guide because there is high contrast of the denture and the surrounding air (or foam spacer)

Question 17

Implant treatment planning for an edentulous case requirements:

Answer 17

1. DICOM of the denture with radiographic indicators
2. DICOM volume of the site with patient wearing the denture with indicators

Question 18

When restoring implants, if we want to use a digital workflow, then we need to capture the:

Answer 18

location of the implant

Question 19

Designed for the specific implants and used similar to impression copings for single implants

Answer 19

Scan bodies

Question 20

T/F: Many studies have shown acceptable accuracy with intraoral scanning for single implants

Answer 20

True

Question 21

T/F: With full-arch prostheses, intraoral scanning studies have shown marginal discrepancies greater than 150 UM, which ultimately lead to future complications

Answer 21

True

Question 22

What are some examples of Photogrammetry scan bodies?

Answer 22

1. PICtransfers
2. iCAM bodies
3. MicronMapper ScanBody

Question 23

Photogrammetry scan bodies are specific to each photogrammetry system and are encoded with targets that allow the camera to:

Answer 23

transpose multiple images to determine the exact implant position