Advanced Restorative- Final Review- Lecture 2

Question 1

Improvements made possible by digital dentistry:

Answer 1

1. adaptation & material properties
2. esthetic outcomies
3. improved process for operator/dentist
4. improved experience for patients

Question 2

____ produces better adaptation of prosheses:

Answer 2

CAD/CAM

Question 3

Material properties for digital dentures include:

Answer 3

1. strength
2. density

Question 4

Rational for digital dentistry specific to digital dentures include improvements in:

Answer 4

1. adaptation of the prosthesis
2. retention of the prosthesis
3. material properties
4. esthetic outcomes
5. improved process for operator/dentist
6. improved experience for patients

Question 5

_____ denture bases are significantly more retentive as compared to ____ denture bases

Answer 5

Milled; heat polymerized

Question 6

How do we assess the strength of material in regard to dentures:

Answer 6

flexural strength

Question 7

How is flexural strength measured?

Answer 7

3-point bend test (MPa)

Question 8

List in order from strongest to weakest, the flexural strength of the following:

3D printed resin
Milled Resin
Heat Processed resin

Answer 8

1. Milled Resin (strongest)
2. 3D printed resin
3. Heat processed resin (weakest)

Question 9

Compare the following between milled and conventional dentures:

1. Ultimate strength
2. Flexural Elastic modulus
3. Yield strength

Answer 9

Ultimate Strength:
M: 121 GPa
CV: 96 GPa

Flexural Elastic Modulus:
M: 2.7 GPa
CV: 2.7 GPa

Yield Strength:
M: 71 MPa
CV: 54 MPa

Question 10

T/F: Milled dentures show a clinical application of increased strength

Answer 10

True

Question 11

The increased density of material of a milled denture results in:

Answer 11

decreased candida adherence and reduced residual monomer

Question 12

What factors contribute to the esthetic outcomes of a milled denture?

Answer 12

1. tooth arrangement (mould, size)
2. Color (hue, value, chroma)
3. texture

Question 13

The Ivotion denture system includes tooth shades:

Answer 13

BL3
B1
A1
A2
A3
A3.5

Question 14

What contributes to the improved process for operator/dentist and improved experience for patients?

Answer 14

1. workflow
2. fewer clinical appointments
3. less chair- time

Question 15

List the key difference between digital & conventional dentures:

Answer 15

1. Improved precision and fit
2. Enhanced workflow efficiency
3. Repeatability & customization

Question 16

Describe the differences with PRECISION & FIT of a digital and conventional denture:

Answer 16

Digital: Precise fit with CAD/CAM and fewer adjustments

Conventional: Manual methods/ less accurate

Question 17

Describe the differences with WORKFLOW EFFICIENCY of a digital and conventional denture:

Answer 17

Digital: If familiar with the workflow, faster process

Conventional: Time-consuming & multiple steps

Question 18

Describe the differences with REPEATABILITY & CUSTOMIZATION of a digital and conventional denture:

Answer 18

Digital: easy to duplicate or adjust

Conventional: must start over if lost or damaged

Question 19

Materials with a higher flexural strength are:

Answer 19

Less likely to fracture

Question 20

Higher flexural strength and modulus enable ____ that allow for ____

Answer 20

Thinner designs; better phonetics

Question 21

Lower surface roughness and intraoral medial will:

Answer 21

Retain less biofilm

Question 22

What does the digital denture start out as?

Answer 22

monolithic denture puck

Question 23

List the digital denture workflow:

Answer 23

APPT 1: Preliminary impression

APPT 2: Secondary impression and jaw relations

APPT 3: Clinical trial appointment

APPT 4: Clinical insertion of prosthesis

Question 24

Describe the preliminary impression appointment (APPT 1):

Answer 24

Student fabricates custom trays with attached occlusion rim

Question 25

Describe the secondary impression and jaw relation appointment (APPT 2):

Answer 25

QA step, review/approve digital design, request 3D printed trial dentures

Question 26

Describe the clinical trial appointment (APPT 3):

Answer 26

Request milling of digital prosthesis

Question 27

At the first clinical appointment, the student makes:

Answer 27

Preliminary impressions

Question 28

On the preliminary casts, the students are a:

Answer 28

well-fitted custom tray with a wax rim attached

Question 29

The 2nd clinical appointment is for:

Answer 29

secondary impression & jaw relations

Question 30

What needs to be identified during the secondary impression & jaw relations appointment?

Answer 30

1. midline 2. incisal plane 3. CR record at OVD 4. Tooth moulds & shade