(Lab or Lec? 3rd deck above) Communication w the Lab Flashcards
Work authorization is aka:
lab prescription
Who can write lab Rx:
only dentists
TF? Duplication of the interim resto is necessary.
T. To help lab know what final restoration should look like
Factors to assess in cast wen communciating w lab
prep/ margins, locations, configurations - shape, margin clarity, interarch space
When to use Knife edge margin:
ceramic-metal, metal disappearing
Describe metal collar:
Dental porcelain, opaque porcelain, and metal substrate all meet. metal sustrate thickest, then dental porcelain, then opaque porcelain
Describe ceramic margin:
All end at the same ht, dental porcelain thickest, then metal substrate, then opaque procelain
Describe knife edge:
All 3 end at the same thickness
4 types of PFM occlusal surface framework design:
Metal lingual, anterior, porcelain lingual anterior, metal posterior, porcelain posterior
Pontic design that requires modification:
Ovate (most esthetic)
4 types of pontics:
modified ridge lap, conical, hygienic, ovate
Metal-ceramic framework best to worst:
All metal except for lingual, Metal on lingual only = porcelain on occlusal and B, metal on L and O, Metal on Apical 1/2 of L
3 types of zirconia crowns:
fully layered, labial layered, monolithic
2 types of LIDi crowns:
monolithic, layered
How is the incisla edge guide made?
using putty (GC Pattern, right?)
Guide for lab tech for where to place incisal edge of definitive resto:
incisal edge guide
custom incisal guide is made following:
functional envelope
What is used to make the custom incisal guide table?
duplicate of the interim resto because it’s been worn functionally and worn down. How long does this functional wear require?
When to alter cement shade for crown cementation:
if the crown is translucent
