FIxed Prosth 3 midterm

lithium disilicate

which material MUST be bonded

true

T/F zirconia does NOT require BONDING

retentive form

cohesively (luted) retained restorations rely on ____

resin>RRGI>ZPC>PCC

rank the compressive strength of definitive cements from highest to lowest

low viscosity

NUMBER 1 criteria for good lutting cement

any metal restoration

Indication for zinc phosphate cement

low strength and high viscosity

DISADVANTAGES of POLYCARBOXYLATE cement

provisionals

INDICATIONS for POLYCARBOXYLATE cement

resin-reinforced GI

cement with compressive strength similar to RESIN but easier to clean

resin-reinforced GI

ideal cement for RETENTIVE ZIRCONIA preparations

resin reinforced GI

cement that can cause CRACKING in low strength ceramics

feldspathic porcelain, lithium disilicate, post and core

CONTRAINDICATIONS for RESIN REINFORCED GI

true

T/F RGMI CANNOT be used for LITHIUM DISILICATE

metal, metal ceramic,zirconia

which materials can be used with RMGI/resin-reinforced GI

light cure

which type of resin cement should be used for VENEERS

color stability, bond strength, working time

advantages of LIGHT CURE resin cement

10% HF for 90 sec

etching protocol for VENEER SURFACE

95% alcohol for 4 min

after etching veneer surface must be cleaned with ______ to remove contaminants

30, 37% phosphoric acid

ETCHING of ENAMEL shoould be done for ___sec with _____

increase wetability and bond strength

function of SILANE PRIMER on CERAMIC

buccal to lingual

path of insertion of veneers with BUTTJOINT

after tack curing

when placing a VENEER excess when should excess be removed

after final cure

when placing a veneer when should RETRACTION CORD be REMOVED

one

when cementing a restoration ____ retraction cord/s is/are used

tooth

the BONDING AGENT is applied to the ______

ceramic surface

the PRIMER is applied to the _____

self adhesive resin

which resin cement does NOT require bonding protocol (ie. no bond or primer)

chemical

MDP self etch adhesive doesn’t require bonding protocol because it forms a _____ bond with both the tooth and zirconia/metal

true

T/F light cure has STRONGER bond strength than self cure

less bond strength (than light cure)

disadvantage of SELF ADHESIVE resin

all ceramic with proper retention

indication for SELF ADHESIVE resin

true

T/F self adhesive resin cement requires proper retention

remove contaminants and increase bond strength

function of rinsing veneer with alcohol after etching

light chamfer

what marginal finish line should be used for CERAMIC VENEERS

limited working time, strict bonding protocol, clean up after setting

disadvantages of dual cure resin

all ceramic crowns, ceramic inlay/onlay, resin bonded FPD

indications for dual cure resin

dual cure

which resin cement must be used for restorations WITHOUT RETENTION form

true

T/F total etch has better dentin bonding strength compared to selective etch

true

T/F total etch can cause sensitivity

optional

with 3M scotchbong universal bond light curing is _____

mandatory

with IVOCLAR(Adhese Universal) bond, light cure is _______

9.6% HF, 2-3min

etch protocol for FELDSPATHIC PROCELAIN

5% HF, 1 min

etch protocol for LEUCITE-REINFORCED glass

5% HF, 20 sec

etch protocol for LITHIUM DISILICATTE

true

T/F 3M scotchbond universal can be used as both silane primer and bonding agent

immediately

when seating ceramic crown excess should be removed _____

false

T/F dual cure cements should be tack cured before cleaning

outside

ivoclean should be used _____ the mouth to clean zirconia

no more than 5 sec

zirconia intaglio surface should bee air abraided for ____

MDP ceramic primer (monobond)

which primer is used for ZIRCONIA

false

T/F zirconia should be etched before seating

one

anterior resin bridges with _____ retainer have a higher success rate

similar

5-year clinical performance of resin-bonded bridges is _____ to the performance of

conventional PFM bridges and implant-supported crowns.

interim

Resin-bonded bridges is an esthetic and conservative _____ treatment option

that can be successfully utilized in favorable clinical situations

vertical

_____ growth pattern is an indication for resin bonded bridges while waiting for implant treatment

treatment planning and selection of ceramics

what does the pre operative phase consist of

preparation and selection of materials/cement

what does the operative phase consist of

finishing/polishing and continued maintenance

what does the post-operative phase consist of

fixing color, shape, diastema, and mild misaligment

indications for veneers

endo treated, tetracycline staining, enhance existing color

when might a veneer be indicated to modify tooth color

congenital malformation, fracture, wear

when might a veneer be indicated for modifying tooth shape

enamel

best bonding is to _____

pronounced enamel defects, severe malformation, severe malalignment, poor hygiene

CONTRAINDICATIONS for veneers

interproximal

the majority of people display only _____ gingiva when smiling

true

T/F tooth display at rest decreases with increasing age

true

T/F bonding is better to glass ceramics than zirconia

feldspathic porcelain

plattinum foil and refractory die techniques are used with which ceramic material?

esthetics and translucency

main advantages of feldspatthic porcelain veneer

low strength and technique senstivity

main disadvantages of feldspathic porcelain veneer

true

T/F when bonded to ENAMEL porcelain veneers have a very high clinical success rate

exposed dentin

clinical complications of veneers are associated with a larger amount of _____

high fracture strength and esthetics

advantages of lithium disilicate veneers

wax up, invest, press

what does the pressable technique consist of

esthetics, less technique sensitive, high strength

advantages of pressable ceramics (lithium disilicate and leucite reinforced)

monolithic color, often require feldspathic layering

disadvantages of pressable ceramics (lithium disilicate and leucite reinforced)

quality of preparation

the success of a restoration depends mostly on the ____

feldspathic porcelain

best choice of veneer material for high esthetic demand

true

T/F felspathic porcelain veneers have about the same survival rate as prressable

enamel preserved

veneers have a higher sucess rate with more _____

higher success rate

less dentin exposure in veneer prep = ______

0.3-0.5mm

how much enamel is at the CERVICAL portion of the ttooth

0.6-1mm

how much enamel is at the MIDDLE portion of the tooth

1-2.1mm

how much enamel is at the INCISAL porrtion of the tooth

0.3,0.5, 0.7, 1.5-2

demension for veneer prep from cervical to incisal edge

1.5-2mm

incisal edge reduction for veneer preparation

true

T/F an esthetic mockup can allow for a more conservattive prep

supra or equi gingival

which finishline (supra,equi, or sub) is recommended for veneer

reduce dentin exposure, improved impression quality, facilitates bonding procedures, hygienic

advantages of supra gingival finishline

visible tooth restoration interface

disadvantages of supra gingival finishline

contact lens effect

blending of ceramic with tooth at cervical area

none or minor tooth color change

indication for supragingival finish line

masking tooth color and closing diastema

when would a SUB gingival margin be indicated for veneers

smooth emergence profile

why would a SUB gingival finishline be used for closing diastema

at the contact area

best choice for a conservative and esthetic interproximal preparation for veneer

existing interproximal restoratiton, major color change, diastema closure

indications for extending the veneer preparation tthrough the interproximal contact area

translucency desired

incisal preparation for veneers depends on _____

butt joint

which incisal finishline is more conservative for veneers

need to worry about undercuts due to incisal-apical path of insertion

why is palatal chamfer less conservative

true

T/F there is no difference in survival rate of veneer between palatal chamfer and butt joint incisal preparation designs

butt joint

incisal prep for veneer indicated when occlusion is on tooth or ceramic