Which of the following is/are essential when using a spherical rather than an admix alloy for a routine amalgam restoration? 1. A larger diameter condenser tip. 2. An anatomical wedge. 3. A thinner matrix band. 4. A serrated condenser tip
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only
All of the above.
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