All-Ceramic

Question 1

explain difference between monolithic and bilithic all ceramic restorations

Answer 1

monolithic = machined from single block of ceramic
bilithic = coping made from glass ceramic or zirconia and porcelain built over coping

Question 2

what luting cement is ideal for all ceramic restorations?

Answer 2

RMGIC or resin luting system

dual cured system preferred - setting from cure and chemical reactions

Question 3

what are ceramics etched with prior to cementation?

Answer 3

hydrofluoric acid

Question 4

what % HF application is required for aluminium oxide and leucite/lithium disilicate? what about glass infiltrated materials?

Answer 4

aluminium oxide = 10% HF for 1 min, rinse then silane
leucite/lithium disilicate = 5% HF for 1 min, rinse then silane
glass inifltrated = air abrasion then MDP (adhesion promoting agent)

Question 5

what materials are used to lute all ceramic restorations?

Answer 5

RMGI luting (relyX)
zinc carboxylate luting (polyF)

Question 6

what material is used for bonding all ceramics? what component allows for bonding between bonding between metal and tooth?

Answer 6

panavia resin cement
(its MDP monomer alloys for bonding between metal and tooth structure)