Digital Dentistry Flashcards
what is digital dentistry/benefits?
- work on the computer in a digitized format.
- decrease chair and lab work time.
- ability to work from home and reduce “working day” turn around if outsourcing to external dental laboratories.
- Enables us to have automation in our workflow.
- Sometimes improves quality and efficiency of work through artificial intelligence
how do we use digital technology?
data collection
Post-Processing/CAD on Software
3D Printing/Milling on Hardware:
where do we use intraoral scanning?
Diagnostic impression (instead of alginate)
- Implant body impression (instead of impression coping and analog)
- Final impression for fixed prosthesis (instead of PVS)
- Negative scan of alginate or PVS mold to get a 3D image of a model
- Bite registration (manipulation of CR and MIP)
- Check for occlusal reduction and material thickness of restorative material
Which scanner is more clinical and direct?
intraoral
what scanner is inverse of alginate or pvs impression
intraoral
what scanner is technique sensitive during data collection?
intraoral
what scanner do you have to scan on your own?
intraoral
what scanner is more post clinical and indirect?
lab
what scanner can replicate stone models?
lab scanner
what scanner is more accurate and predictable?
lab
what scanner does automatic scanning?
lab
what are common issues with digital IO scans?
• Ambient ________ too much, which causes reflection, refraction, shadow
- _______ can help with specular reflection, but excess can make inaccurate
- Optimal ambient light condition is ______ lux.\
Glossy objects can give _______ differences but less than 25 microns.
- These can include ______ and ______ crowns, but also ______ and ______ can do this.
- _______ is recommended; I recommend using IsoLite system from Zyris.
- Highly ________ objects can have lower overall accuracy due to subsurface scattering.
- Redundant _______ (i.e. lips, buccal mucosa, frenulum, tongue)
- Double scans from poor ______
- Lack of ______ tissue
- Light penetration and depth perception, so deep ________ ______ are not accurately depicted
lighting
powder
500
height
metal, porceline, saliva, heme
isolation
translucent
tissue
stitching
hard
subgingival margins
cone beam computed tomography
- 3D imaging of the _____ and _____
- Ionizing _______ (measured in micro-Sieverts)
- Two main different categories: _____ or _____ arc?
- Processed in ______ file slices.
- Units of measurement of image is with _______.
head, neck
radiation
half, full
dicom
voxels
Optical Coherence Tomography (OCT)
- Has a penetrating depth of around _____, but is non-ionizing, similar to ultrasound imaging.
- Was mostly used in __________, but now in dentistry, used to see:
3cm
ophthalmology
layers of tissue as well as through restorative material and interface.
What is CAD work?
Been popularized by material scientists and mechanical engineers to produce products designed through digital modalities.
- In dentistry, we mostly work with .____ files and .____ files.
- Now sometimes, especially for color referencing, we sometimes use .____ files.
- More practical in _______ scans
.stl, .obj
.ply
3D facial
