Flashcards in Operative II-E3:Bonding and Materials Deck (56):
Is a primer hydrophilic or phobic?
Is a primer acidic or basic?
Are primers monomers or polymers?
What are the two chemicals that primers are mixed with? What is their function?
alcohol and/or acetone...to evaporate and remove water
Function of PRIMER: to displace _______ and allow the _______ to penetrate the DENTINAL _______ matrix.
Dentin bonding primers: Promotes infiltration into _______
Dentin bonding primers: transforms hydro______ to hydro______
phillic to phobic
Dentin bonding primers: ________ is denatured
– Proteins are ________ from dentinal fluids
– Dentinal tubule ________ is decreased
In our 4th gen optioned FL what was the yellow container? black?
What are the two types of solvent for the adhesives?
Ethanol and Acetone...like the primers!
WHICH GENERATION of Adhesives is the GOLD STANDARD???? How many steps are involved in this generation? What is an example product?
4th generation...3 steps-etch, primer,bonding resin...Example-OptiBond FL
How many steps AND What steps: 4th generation
3 steps-1.etch 2.prime 3.adhesive
How many steps AND What steps: 5th generation
2 steps-1.etch 2.prime+adhesive....OPTIBOND SOLO PLUS
How many steps AND What steps: 6th generation
2 steps: 1.Etch+prime 2.Adhesive
How many steps AND What steps: 7th generation
1 step: 1.etch+prime+adhesive
6th gen-2 step: pros- ____ can be lowered enough to etch uncut enamel
6th gen-2 step: pros- Smaller _______/______ layer still has high initial bond strength
6th gen-2 step: pros- more or less technique sensitive?
6th gen-2 step: pros- does it help sensitivity?
YES! there is less sensativity
6th gen-2 step: Cons-pH is limited and ______ layer is retained
6th gen-2 step: Cons- LIMITED ______ layer hybridization
6th gen-2 step: Cons- you can get ______ entrapment in the hybrid layer!!!
6th gen-2 step: Cons- long term bond _______
7th-gen-all in one: pros--- Most _______ to use
Less _______ sensitive
7th-gen-all in one: pros---Smaller _____/_____ layer still has high initial bond strength...and reduced ______
7th-gen-all in one: cons....UNLIKE the 6th gen- pH is very limited and inadequate to etch uncut _______- resin compatibility
7th-gen-all in one: Cons----______ layer retained
Limited smear layer ________...______ absorbed into resin
7th-gen-all in one: Cons----Storage problems...Long term bond _______....Compatibility with ____ curing resins
CAUSES OF HYDROLYSIS-the ______ component absorbs water!
CAUSES OF HYDROLYSIS-maintaining the ______ layer
CAUSES OF HYDROLYSIS-What are the two components of the smear layer and that substance increases activity with the smear layer?
smear layer: 70% dentin 30% bacteria...MMP activity
Hybrid composite has both ______ and _______ fillers
large and small
Microhybrid composite has mostly _____ fillers
Whats the difference between nano-composite and micro-hybrid composite?
nano has clusters of really small particles vs micro particles can only go down to the size of the nano cluster
NanoClusters-￼Larger nanoclusters do not pluck--- individual particles do Leads to better long-term _____ retention
What is the structure of a Giomer?
Surface of the silica particle is modified with Glass Ionomer and additional elements...you can get F- release with your restoration!
Each tooth should appear _____ times narrower than its mesial neighbor in a frontal view....but this amount _____ is more commonly accepted in the West.
1.618...1.4 in the West
What are the 3 equal proportions on an aesthetic face?
1/3 forhead-glabella...1/3 glabella to subnasion...1/3 subnasion to menton
What is the aesthetic proportions from the subnason to the mention?
1/3 subnason to upper lip, 2/3 upper lip to menton
YOUNG TEETH- have lower or higher value?
higher value (brighter)
YOUNG TEETH- have more or less chroma?
less chroma (color)
YOUNG TEETH- more or less surface texture?
MORE surface texture
YOUNG TEETH- more or less luster?
LESS luster (less reflective)
YOUNG TEETH-more or less morphology?
What are 2 examples of youthful features in teeth?
The avg length of the upper lip on females is ___-___mm on females and ___-___mm on males...it gets ______ with age...
IDEALLY there should be ___-___mm of GINGIVAL display in a full smile...this decreases with age and loss of muscle tone..
What does the 'F' or 'V' sound evaluate?
What does the 'E' or 'S' or '66' sound evaluate?
"speaking space" or interocclusal space/VERTICLE dimension
The ZENITH of each tooth's gingival arch is positioned slightly ______
What is the #1 most important factor in Tx Planning cosmetics?
What is the optimal distance to judge a smile?
What is the weakest bonding system?
Which material has a very strong affinity for phosphate bonding?
What two materials do you not sandblast, what do you sandblast?
do not sandlast emax or vita...sandblast zirconia