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digital dentistry Flashcards

1
Q

What is Digital Dentistry?

A

The use of dental technology or device
that incorporates digital or computer-
controlled components in contrast to
that of mechanical or electrical alone

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2
Q

CAD

A

Computer Aided Design
The use of computer programs to create two- or three-dimensional (2D or 3D) graphical representations of physical objects.

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3
Q

CAM :

A

CAM : Computer Aided Manufacturing /Milling
The use of computer software to control
machine tools and related machinery in
the manufacturing of work pieces.

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4
Q

why use cad/cam
* materials?
* cost?
* labor?
*speed of production process?
* dimensions?
* wastage?
* energy consumption?
* quality control?

A

*Application of new materials
*Better cost effectiveness (some have estimated the savings in lab bills to range from 60%-70%)
*Reduction in labor
*Faster production process
*Precise dimensions
*Minimizing wastage of material
*Reducing energy consumption
* Better quality control

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5
Q

longevity of cad/cam restorations

A

very good long term success

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6
Q

point cloud triangulation

A

used by cad systems, scans objects and creates points in space that are then connected via triangles to form object

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7
Q

STL files

A

standard triangulation angle files
still use triangluation to form 3d object, more points used for this will result in a more accurate image

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8
Q

req for digital imaging

A

camera
software
production unit

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9
Q

cerec bluecam uses what light source

A

LED blue light

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10
Q

what is req on teeth for cerec bluecam

A

aluminum powder to reflect blue light

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11
Q

is there articulation wth cerec blue cam

A

yes onscreen articulation

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12
Q

omnicam vs blue cam imaging technique

A

omni: continous acquisition
blue: multiple shts joined together

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13
Q

omni vs blue, 3D scan in color?

A

omni: yes
blue: no

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14
Q

omni vs blue, powder?

A

omni: no
blue: yes

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15
Q

omni vs blue, areas of use?

A

omni: single tooth, quad, full mouth
blue: single, quadrant, full is possible

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16
Q

omnicam advantages

A

no powder
easy use
precise 3d colored image

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17
Q

bluecam advantages

A

high precision
rapid scan of pwodered surfaces
easy

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18
Q

prime vs omni scan procedure

A

prime: dynamic depth
omni: triangulation

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19
Q

prime vs omni, powder?

A

prime: none
omni: none

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20
Q

prime vs omni, scan metal surfaces?

A

prime: yes
omni: yes, may need powder tho

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21
Q

prime vs omni, color scan?

22
Q

prime vs omni, photorealistic scans?

23
Q

prime vs omni full mouth scan time?

A

prime: 2-3 min
omni: 8-12 min

24
Q

prime vs omni, autoclavable?

A

prime: yes
omni: no

25
how to classify a digital restoration
classified with data acquisition, accessibility to STL files and production of final restoration
26
direct data acquisition
The data are directlyobtained from the patient'smouth via intra oral scanner.
27
indirect data acquisition
The data are indirectlyobtained in the lab either from an impression or a stone cast.
28
open STL files
Are not dependent on the manufacturer, can be used with any software to fabricate the final restoration.
29
closed STL files
The data are controlled and manipulated by the owner (manufacturer).
30
cad/cam production methods
Chair-side Production Laboratory Production Centralized Production
31
itero, 3m lava, sirona: optical techs
itero: parallel confocal/ telecentric 3m lava: wavefront sampling sirona: LED/ laser
32
which digital impression system req powder
3m lava
33
which digital impression system has a closed interface
3m lava
34
which digital impression system is only up to 4 UB and single restorations
3m lava
35
chair side production
36
lab production
37
centralized production
38
CEREC AC Working principle Light Source Image Type Necessity for Coating In-office milling
Active triangulation Visible blue light Multiple images Yes Yes
39
iTero Working principle Light Source Image Type Necessity for Coating In-office milling
Parallel confocal microscopy Red Laser Multiple images No No
40
E4D Working principle Light Source Image Type Necessity for Coating In-office milling
Confocal microscopy Laser Multiple images Optional Yes
41
LAVA COS Working principle Light Source Image Type Necessity for Coating In-office milling
Active wavelength Pulsative visible Blue light Video Yes No
42
TRIOS Working principle Light Source Image Type Necessity for Coating In-office milling
Confocal microscopy Not Disclosed Multiple images No No
43
conventional vs digital inital costs
con: PVS + Registration Material ~ $17. digital: Scanner $20,000 -$30,000 and Milling unit $110,000 -$120,000.
44
conventional vs digital additional costs
con: Trays, Dispensers, and Stone/ Shipping. digital: Electronic Lab PrescripCons, Blocks, Burs, and Maintenance.
45
conventional vs digital time
*Go Digital and Save Time!! *Time is $$.
46
Conventional Vs DigitalTissue Displacement
*Tissue Displacement is a MUST for both Techniques. *Dry Field is a MUST for both Techniques. *0.5 mm of tooth structure apical to the finish line.
47
lit review of digital restorations results and time
*Digital impressions showed a clinically accepted results, shortened the treatment Cme.
48
what method should be used with full arch restorations
conventional
49
lit review finding for single unit ceramics digital vs conventional
No significant difference was observed regarding the marginal gap of single-unit ceramic restorations obtained from digital or conventional impression techniques.
50
Digital versus conventonal impressions for fixed prosthodontics: A systematic review and meta-analysis
Conclusion: Although conclusions were based mainly on in vitro studies, the digital impression technique provided better marginal and internal fit of fixed restorations than conventional techniques did.
51
Some advantages of the Optical/Digital Technique: *comfort * Marginal fit * communication. *turn around time.
*More comfortable to the patient. *Better Marginal fit (both clinically accepted). *Improve Dentist/Lab communication. *Cut down the turn around time.
52
review tables in slides for completion

fixed pros. (11 decks)

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