Equipment

Question 1

Rubber dam

Answer 1

Frame
Rubber sheet
Clamps (winged/ wingless)
Floss
Forceps
Hole puncher
Wedges
Lubricant
Flat plastic

Question 2

Fissure sealant

Answer 2

Rubber dam
Helioseal
Pumice powder
Bristle brush bur
Acid etch & microbrush
Compule gun
Probe
Cotton pledget
Light curer
Fluoride varnish

Question 3

Bonded amalgam

Answer 3

Acid etch
Primer A & B
Bonding paste (Panavia 21)
Brush
Oxyguard

Question 4

Procedure for bonded amalgam

Answer 4

Cavity design with retention (slots, grooves, pins etc.).
Etch for 30s, dry but don’t dessicate.
Mix a drop of primer A + B, paint on cavity (sets under anaerobic conditions, aided by Oxyguard at the end of procedure).
Amalgam packed.
Oxygen placed for 3 mins and wash.
NOTE: retentive features can be put above liner e.g. GIC

Question 5

Advantages of bonded amalgam

Answer 5

Bulk placement
Fluoride reservoir
Anti-bacterial

Question 6

Disadvantages of bonded amalgam

Answer 6

Soluble
Low wear resistance
Susceptible to moisture
Doesn’t bond to Dycal, CaOH

Question 7

PPE

Answer 7

gloves, apron, goggles, mask

Question 8

Why use rubber dam?

Answer 8

Moisture control
To permit proper placement of all restorations
To prevent contamination of restorative procedure
-reduced bacterial contamination
To improve px comfort
-px airway protection from inhalation/ swallowing instruments
Tissue retraction

Question 9

Disadvantages of rubber dam

Answer 9

More difficult to communicate with px
Feeling of claustrophobia
Clamps can cause pain (incl. post-operative for few hours)
Time-consuming