FP - cuspal coverage indirect restorations

Question 1

explain the importance of cuspal coverage restorations

Answer 1

preserve the integrity of a weakened tooth against forces of occlusion

Question 2

list the factors that determine whether a tooth would best be restored with cuspal coverage or an intracoronal restoration (6)

Answer 2

• if tooth is endo treated
• amount of remaining tooth structure
• type and amount of load applied on the tooth during function
• the parafunctional habits of the patient
• the aesthetic value of the tooth
• the knowledge and experience of the dentist

Question 3

list the 4 designs of cuspal coverage restorations

Answer 3

• onlays
• inlays with cuspal coverage
• 3/4 crowns
• 7/8 crowns

Question 4

what is usually the functional cusp on posterior upper teeth?

Answer 4

palatal

Question 5

what are types of materials used for cuspal coverage restorations?

Answer 5

gold
all ceramic
composite

Question 6

what are luting materials used for cementation of cuspal coverage restorations?

Answer 6

resin modified GI (Rely X luting)
Poly F

Question 7

what are bonding materials used for cementation of cuspal coverage restorations?

Answer 7

Resin (Panavia)

Question 8

list features of tooth prep for gold inlay with cuspal coverage

Answer 8

non undercut cavity walls
cuspal coverage of 1mm with functional cusp bevel
bevel margins
mini shoulder finish buccally in lower arch

Question 9

what is the outlining feature of tooth prep for a 3/4 gold crown?

Answer 9

proximal groove