1try-in and adjustments of fixed resto order
proximal > internal > occlusion
2try-in and adjustment: proximal contact
floss and shim stock
tight = doesnt seat
just right = same as other teeth
light but not open is acceptable; monitor
visibly open = fail
3try-in and adj: internal fit
fit checker, rouge, occlu spray
washed out = no cement space, crown doesnt seat during cementation or bonding! redo.
uniform layer of material consistent w expected thickness of cement = good
checker thickness > cement film = too tight proximal or other interference = adjust
adjust if non uniform
4try-in and adj: occlusion
intensity check w shim stock (is it high)
position check w articulating paper (where)
5polishing material for metal
brown and green tip
6if not polishing and instead customizing:
adjustments
characterization/customization
glazing
7value
black/white tv; lightness and darkness
8hue
quality that distinguishes one color family from another
9chroma
amt of hue in a color
10purpose of glazing dental porcelain
sealing open pores, use colorless glass powder
po
11polishing vs glazing
polish is just as good as glazing
fracture toughness better in polished
both resistant to staining
12principles of porcelain staining in shade modification (1980 weiner): interproximal staining
gingival embrasures: brown and orange
incisal embrasures: blue and purple
13principles of porcelain staining in shade modification (1980 weiner): opacifycing effects
decalcification and fluorosis, makes white stains
14principles of porcelain staining in shade modification (1980 weiner): how to make more orange
dominant yellow hue with red stain makes more orange
15principles of porcelain staining in shade modification (1980 weiner): translucency at incisal
blue or purple stain on lingual of incisal edge will make translucency
16principles of porcelain staining in shade modification (1980 weiner): complex gray
change chroma and value WITHOUT affecting translucency
17principles of porcelain staining in shade modification (1980 weiner): gray stains
gray stains dark and opacify
18principles of porcelain staining in shade modification (1980 weiner): complementary colors
complementary colors: next to each other look brighter, pigments/painger mix look grayer
19principles of porcelain staining in shade modification (1980 weiner): how to increase darkness
increase darkness by gray stains (simple gray) or mixing complementary colors (complex gray)
20principles of porcelain staining in shade modification (1980 weiner): how to lighten porcelain darkness
darkness cannot be lightened without significantly reducing translucency
21complementary colors
yellow - purple
blue - orange
red - green
22principles of porcelain staining in shade modification (1980 weiner): if porcelain too orange and too light
add blue stain
23luting and cementation material for each resto
casts and PFMS: any
weakest ceramics: resins
weaker ceramics: resins or conventional
stronger ceramics (zirconia oxide): any
24conventional cements
zpo, zpc, gi
easy to use; foolproof
<25um
do not use with feldspathic or leucite reinforced porcelain
25resin cements
>25um
great adhesion with proper use
technique sensitive
adds retention where lacking
inc resistance of weaker ceramics
more expensive than conventional cem
26material between conventional and resin cement: RMGI
easy to use
good for metal and PFM
middle price