Unit 308- protheses

Question 1

what type of material is alginate

Answer 1

irreversible hydrocolloid

Question 2

what type of material is addition silicone and polyether

Answer 2

elastomer

Question 3

what type of material is agar

Answer 3

reversible hydrocolloid

Question 4

what happens to alginate when you leave in water or leave to dry

Answer 4

expands
shrinks

Question 5

examples of additional silicone

Answer 5

putty
light heavy body in gun

Question 6

advantages of alginate

Answer 6

cheap, easy to mix

Question 7

ad and dis of additional silicones (also the same for polyether)

Answer 7

ad-
elasticity, accuracy, stable in moisture (polyether less dimensionally stable when moist)
dis-
expensive, long setting time, sticky

Question 8

what do you immerse impressions in

Answer 8

10% sodium hypochlorite

Question 9

example of polyether

Answer 9

impregun

Question 10

material for temp crown

Answer 10

cold cure acrylic

Question 11

material for crown

Answer 11

porcelain (or to metal)
metal non and precious

Question 12

temp bridge material

Answer 12

acrylic
resin

Question 13

bridge material

Answer 13

ceramic
porcelain to metal
metal non and precious

Question 14

veneer material

Answer 14

porcelain

Question 15

what can you soak gingival retraction cord in

Answer 15

adrenaline alum

Question 16

what bur for crown prep

Answer 16

tapered diamond

Question 17

what is temp bond

Answer 17

zinc oxide and eugenol temp cement

Question 18

what can you use to trim temp crown

Answer 18

beebee

Question 19

plastic clear temp crown name

Answer 19

odus pella

Question 20

tooth coloured temp preformed crown name

Answer 20

directa

Question 21

name and explain each type of bridge

Answer 21

fixed- attached to both teeth
fixed movable- joint in-between
cantilever- attached to one tooth
spring- attached two different teeth
adhesive- maryland wings only

Question 22

what is the fake tooth called

Answer 22

pontic

Question 23

what to use to bond veneer

Answer 23

resin bond and cement

Question 24

what can you change surgically to improve retention with edentulous

Answer 24

alveoplasty- changing shape of ridge
addition of bone substitutes
alveolectomy- removal of sharp edges

Question 25

what can you use to measure occlusal face height

Answer 25

willis bite gauge

Question 26

what can you use to make adjustments in try in

Answer 26

le cron carver

Question 27

what impression do you use on metal dentures

Answer 27

elastomer

Question 28

immediate denture instructions

Answer 28

-leave in denture overnight -return for adjustments -return 3-6 months for permanment

Question 29

what happens with relines

Answer 29

when bone has resorption loose denture fit wash impression alginate of the mouth without denture space is filled with acrylic

Question 30

tissue conditioners 2

Answer 30

soft lining- base is cushion functional impression- long impression

Question 31

what is an obturator

Answer 31

removable protheses for after surgery of tumour

Question 32

what is over denture and advantage

Answer 32

over retained roots reduces shrinkage and bone is still present

Question 33

what happens with implant procedure

Answer 33

-flap is raised -prepare hole for implant -implant placed and sutured -after time implant is embedded in the bone by osseointegration -abutment is screwed on

Question 34

which impression is not suitable for inlay

Answer 34

alginate

Question 35

crown bur is for what

Answer 35

paraelle prep

Question 36

abrutment to tooth is used with what cement

Answer 36

self cure resin

Question 37

roughen surface for veneer chemical is called

Answer 37

hydrofluoric acid

Question 38

what bur in a denture fit

Answer 38

stainless steel bur