RMTL

Question 1

what is abfraction?

Answer 1

occlusal loading causing flexure at cervical margin + subsequent fracture

Question 2

an attritive restorative material?

Answer 2

porcelain

Question 3

following tooth wear how is OVD maintianed

Answer 3

dentoalveolar compensation

Question 4

index for tooth wear

Answer 4

smith + knight

Question 5

before restoring tooth wear what must happen?

Answer 5

cause + stabilisation of tooth wear

Question 6

what does stain free area on tooth mean

Answer 6

likely that TSL is happening

Question 7

is a lingual plate or bar easier to add teeth to?

Answer 7

lingual plate

Question 8

3 situations for a acrylic partial

Answer 8

transitional
temporary/provisional
trainer

Question 9

what is an open faced denture?

Answer 9

doesn’t use buccal flange - avoids severe undercut ridge

never use in mandible - risk of resorption

Question 10

for an immediate denture posterior teeth should be removed first. how long should they be left to heal?

Answer 10

8-10 weeks

Question 11

how long to keep immediate dentures in place for following extraction?

Answer 11

24hours

Question 12

what must happen at 24hr exam for immediate denture?

Answer 12

remove dentures
saline rinse
check haemostasis
adjustments
pt instructions for care 

review in 1 wk - dentures in at all time apart from cleaning

Question 13

2 types of denture soft lining materials

Answer 13

temporary + permanent

Question 14

chair side hard temporary reline material used

Answer 14

ufi gel

Question 15

difference between reline + rebase

Answer 15

reline = acrylic on fitting surface
rebase = replacement of fitting surface + base acrylic

lower complete reline = rebase

Question 16

2 material choices for impression for lab reline/rebase

Answer 16

ZOE or light bodied silicone

Question 17

how long do temporary soft liners last for?

Answer 17

2-3weeks max

Question 18

how long does tissue conditioning last for?

Answer 18

1 week max

Question 19

when are tissue conditioners used?

Answer 19

if denture caused trauma + recovery needs to take place before impression

Question 20

what is a functional impression?

Answer 20

impression taken gradually over week by temporary soft liner (obturators)

Question 21

4 indications for temporary soft liner/tissue conditioner

Answer 21

1. persistent soreness
2. aid retention - can lock into undercuts
3. obturators
4. post radiotherapy dentures

Question 22

2 groups of permanent soft liners

Answer 22

1. silicone based
2. heat cured acrylic based

silicone preferred

Question 23

recommended thickness for permanent soft liner

Answer 23

2mm

Question 24

instructions to patient with permanent soft liner

Answer 24

don’t used strident or hypochlorite to clean

Question 25

difference between implant + tooth

Answer 25

implant no PDL

Question 26

how much bone do you ideally want around implant?

Answer 26

~6mm | most implants 3.5-4mm

Question 27

CI for Shortened dental arch

Answer 27

1. marked dento-alveolar mal relatioship - extreme class 2/3 2. parafunction 3. pre-existing TMD 4. advanced tooth wear 5. advanced period 6. pt <40ys

Question 28

6 factors influencing implant integration

Answer 28

1. biocompatibitly 2. implant design 3. implant surface 4. state of host bed 5. surgical technique 6. loading conditions

Question 29

how does OVD effect free way space

Answer 29

if OVD decreases, FWS has increased

Question 30

what is hue

Answer 30

diffrent colours

Question 31

what is chroma

Answer 31

change in concentration of colour

Question 32

what is value component of colour

Answer 32

change in tonality (light/dark)

Question 33

explain simple VITA shade guide

Answer 33

``` A-D = hue A = yellow B = reddish yellow C = grey D = reddish grey ``` 1-5 = chroma

Question 34

why do you need to wait 1-2 weeks after bleaching to restore?

Answer 34

resin bond effected better colour match once teeth rehydrated