2/7 Soldering ? (Lab or Lec?)

Question 1

Why not to get soldering too hot:

Answer 1

don’t want carbon going in joints

Question 2

Carful not to

Answer 2

pull pontic or retainer out of investment

Question 3

Add this to joint:

Answer 3

soldering flux, allow to flow down into joints M and D), then antiflex, thick pasty, brush line across occ surface avoiding outer inclines of MR’s

Question 4

Antiflux is placed here:

Answer 4

2 bands across the ridges, outer inclines of MR’s exposed

Question 5

FIrst indicator piece of solder then:

Answer 5

place solder bar in hemostat, flux it, inidcator pieces in place, no investment in gingival embrasures,

Question 6

feed solder in from this embrasure

Answer 6

L embrasue (more open)

Question 7

How to heat bridge with torch:

Answer 7

heat investment, figure 8 coming through pontic to give it a little extra heat (hardest to heat), keep eye on indicators, crowns will get cherry red adn frosty gold, then solder will melt

Question 8

Heat must come from:

Answer 8

the investment (can heat pontic every once in a while

Question 9

When to take bridge out fo investment:

Answer 9

after cooling