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Fixed Pros I > Introduction to Digital Dentistry > Flashcards

Introduction to 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

what does digital dentistry include

A
  • tele-dentistry
  • electronic dental record
  • CBCT
  • digital radiology
  • digital impression
  • 3D printing
  • CAD/CAM
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3
Q

what is CAD

A

the use of computer programs to create two or three dimensional graphical representations of physical objects

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4
Q

what is CAM

A

manufacturing/milling
- the use of computer software to control machine tools and related machinery in the manufacturing of work pieces

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5
Q

what is point cloud meshing

A

a collection of data points called a point cloud is used to depict a real world object
- combines multiple scand to create complete mode

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6
Q

what does STL files stand for

A
  • standard triangulation language
  • standard tessellation language
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7
Q

what are STL files

A

a file format which is an openly documented format for describing the surface of an object as a triangular mesh that is a representation of a 3D surface in triangular facets

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8
Q

what do we need to apply digital imaging to practice

A
  • intra oral scanner
  • designing software
  • production unit: additive: 3D printing or subtractice: milling
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9
Q

what are some available digital imaging systems

A
  • CEREC primescan, omnicam or bluecam
  • Tiors, 3 shape
  • iTero digital scanner
  • E4D dentist
  • Medit
  • Lava COS
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10
Q

what are the requirements of intra oral scanners

A
  • easy to use
  • accuracy
  • software capability and speed
  • cost
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11
Q

what is 3D printing

A

the use of additive manufacturing to create dental prostheses such as aligners, dentures, and crowns

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12
Q

what is a milling machine

A

designed to cut crowns, bridges, copings, frameworks, implant abutments and more from materials such as ceramics, zirconia, alloys, resins or wax

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13
Q

what are the types of milling machines

A

-wet milling vs dry milling
- 3 axis vs 5 axis

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14
Q

what are the characteristics of CEREC

A
  • inlays/onlays, crowns and bridges
  • visible blue light
  • powder is required
  • digital on screen articulation
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15
Q

what are the generations of CEREC

A
  • CEREC bluecam
  • CEREC omnicam
  • CEREC primescan
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16
Q

what is the imaging technique of CEREC omnicam? CEREC bluecam?

A
  • continuous data acquisition
  • multiple shots joined together
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17
Q

can cerec omnicam 3D scan in color? CEREC bluecam?

A
  • yes
  • no
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18
Q

does CEREC omnicam use powder? CEREC Bluecam?

A
  • no
  • yes
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19
Q

what is the area of application for CEREC Omnicam? CEREC Bluecam

A
  • single tooth, quadrant, and full mouth
  • single tooth, quadrant ( full mouth if possible)
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20
Q

what are the advantages for CEREC Omnicam

A
  • powder free
  • easy handling
  • precise 3D imaging in natural color
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21
Q

what are the advantages of CEREC bluecam

A
  • high precision
  • rapid scan in powder coated surfaces
  • easy to use
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22
Q

how long does a full arch scan take with primescan

A

approximately 2-3 minutes

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23
Q

how long does a full arch scan take with omnicam

A

approximately 8-12 minutes

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24
Q

what is the working princple, light source, image type, necessity for coating, and in office milling for CEREC AC

A
  • active triangulation
  • visible blue light
  • multiple images
  • yes
  • yes
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25
Q

what is the working princple, light source, image type, necessity for coating, and in office milling for iTero

A
  • parallel confocal microscopy
  • red laser
  • multiple images
  • no
    no
26
Q

what is the working princple, light source, image type, necessity for coating, and in office milling for E4D

A
  • confocal microscopy
  • laser
  • multiple images
  • optional
  • yes
27
Q

what is the working princple, light source, image type, necessity for coating, and in office milling for LAVA COS

A
  • active wavelength
  • pulsative visible blue light
  • video
  • yes
  • no
28
Q

what is the working princple, light source, image type, necessity for coating, and in office milling for TRIOS

A
  • confocal microscopy
  • not disclosed
  • multiple images
    -no
  • no
29
Q

what can we do with CAD/CAM

A
  • single tooth restorations on natural teeth
  • multi unit restorations on natural teeth
  • implant restorations
  • removable prostheses
30
Q

what type of single restorations on natural teeth can be done with CAD/CAM

A
  • crowns
  • inlays
  • onlays
  • veneers
31
Q

what type of multi unit restorations on natural teeth

A

3 unit bridges

32
Q

what type of implant restorations can be done with CAD/CAM

A
  • implant planning and surgical guide
  • custom abutments
  • cement retained and screw retained crowns
  • titanium milled bars for full arch restorations
  • frameworks for implant bridges
  • full arch monolithic FDP
33
Q

why use CAD/CAM

A
  • application of new materials
  • better cost effectiveness
  • faster production process
  • precise dimensions
  • minimizing wastage of material
  • reducing energy consumption
  • better quality control
  • better communications
  • treatment plan prediction
  • patient satisfaction
34
Q

how is CAD/CAM more cost effective

A

-60-70% savings in lab bills
- reduction in labor

35
Q

the multilevel quality improvement afforded through digital technology is recognized in:

A

workflow, and efficiency, record keeping, data fidelity and therapeutics

36
Q

how does digital technology affect longevity of restorations

A

posterior single tooth restorations fabricated from intraoral scans by CAD/CAM technology have acceptable results for shade, contour, marginal adaptation and occlusion

37
Q

what are the survival rates for restorations with CAD/CAM

A
  • 88.7% up to 17 years of clinical service
  • 88.8% in 5.5 years vs 93.3% for gold
  • 97% in 5 years 90% in 10 years
  • 98.4% in 9 years
38
Q

what are CAD/CAM classificiations

A
  • data acquisition
  • accessibility to STL files
  • production of final restoration
39
Q

what are the types of data acquisition

A
  • direct
  • indirect
40
Q

what are the types of accessibility to STL files

A
  • open system
  • closed system
41
Q

what are the types of produciton of final restoration

A
  • chair- side production
  • laboratory production
  • centralized production centers
42
Q

describe direct data aquisition

A

the data are directly obtained from the patients mouth via intraoral scanenr

43
Q

describe indirect data acquisition

A

the data are indirectly obtained in the lab either from an impressino or stone cast via bench scanner

44
Q

describe an open system

A

open files are not dependent on the manufacturer, can be used with any software to fabricate the final restoration

45
Q

describe closed system

A

the data are controlled and manipulated by the owner (Manufacturer)

46
Q

describe chair side production

A

no provisionalization is needed

47
Q

describe laboratory production

A

dental lab scanner and designing software -> CAD/CAM

48
Q

describe centralized production

A

production center -> CAM

49
Q

what is digital workflow

A

workflow between lab and practice

50
Q

what do digital technologies improve

A

the workflow from diagnosis, planning to treatment

51
Q

intraoral scanner can greatly increase:

A

productivity, efficiency, and accuracy

52
Q

what are the costs with analogue

A
  • initial: VPS, registration materials ~50$
  • additional: trays, dispensers, and stone, lab cost and shipping
53
Q

what are the costs with digital

A
  • initial cost: scanner ~$20-30K and milling unit $110K- $120K
  • additional cost: electronic lab prescriptions, blocks, burs and maintenance
54
Q

what are the time considerations with analogue

A
  • more chairside time ~41 minutes (teeth) and ~43.12min (implants)
  • tray selection or custom tray
  • mixing time
  • setting time
  • remake
  • opposing arch
  • inter occlusal records
  • disinfection
  • pour the impressions
  • shipping time
  • ditch the dies
  • mount the casts
  • wax up and fabrication
  • restoration
55
Q

what are time considerations with digital

A
  • les chairside time ~13 min (teeth) and ~30.63 minutes (implants)
  • learning curve
  • scan (prep, opposing, and buccal)
  • evaluate the scan
  • rescan
  • lab prescription
  • received (electronically)
  • design
  • cast and prosthesis (printing/milling)
  • restoration
56
Q

describe tissue displacement in both analogue and digital

A
  • tissue displacement is a must for both workflows
  • dry field is a must for both workflows
    -0.5mm of uncut tooth structure apical to the finish line is required
  • same level of accuracy for crowns and FPDs
  • digital impressions showed a clinically accepted results, and shortened the treatment line
  • conventional impressions are still recomenneded for full arch restorations
57
Q

describe the marginal fit of analogue vs digital

A
  • no significant different was observed regarding the marginal gap of single unit ceramic restorations obtained from digital or conventional impression techniques
  • marginal and internal gaps with conventional technique were greater than the digital technique
  • the digital impression technique provided better marginal and internal fit of fixed restorations
58
Q

what is the application of AI

A

-automated diagnostics
-a predictive measure
- a classification or identification tool

59
Q

what will AI technology be used for in the future

A

collecting, processing and organizing patient related datasets to procide patient centered individualized dental treatment

60
Q

what must dentists and clinicians focus on with AI

A

collecting and entering authentic data into their database

61
Q
A

Fixed Pros I (13 decks)

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