toothwear 4

Question 1

what makes tooth preparation in toothwear cases difficult

Answer 1

lack of occluso-gingival height
lack of occlusal space
severly compromised tooth

Question 2

at what angle should grooves to aid tooth prep be done

Answer 2

parallel with path of insertion and removal

Question 3

what is electrosurgery used for

Answer 3

can be used to remove gum tissue allowing adequate access below gingival margin

Question 4

how is surgical crown lengthening done (basic)

Answer 4

flap raised to access bone
removal of bone around tooth increases amount of tooth visible in mouth (and increases occluso-gingival height)
flap is then sutured more apically than orginal gingival margin
(takes about 3 months for gingival margins to stabilise)

Question 5

what type of bur is used for cutting porcelain

Answer 5

coarse diamond

Question 6

what type of bur is used for cutting metal

Answer 6

gold cutting bur

Question 7

what should be done prior to demolition of indirect restorations

Answer 7

impression so that temporary can be constructed

Question 8

what is a failing dentition

Answer 8

dentition where deteriorating teeth, restorations or oral health or a combination of issues means a loss of adequate basic oral functions such as mastication and acceptable aesthetics is inevitable if untreated.

Question 9

acronym for breaking bad news

Answer 9

S - set up interview
P - perception, what does patient know
I - invitation , ask how how much they want to know and if they have questions
K - knowledge, give them the facts
E - emotion, respond to patients emotions
S - strategy and summary, negotiate a concrete follow up