Guidelines for Optimal Mix
1. Clinical experience with your amalgamator is the best
guide to mixing the IRM®Caps™. Variation in
amalgamators (even from the same manufacturer) will
occur and the trituration speed of amalgamators will
vary with the line voltage on which they are operated.
igh-speed amalgamators such as Caulk’s ProMix™are
recommended for best results.
2. If a dry, stiff, or rubbery mix is obtained, reduce
trituration time, keep speed the same.
3. If a sticky and soft mix is obtained, increase trituration
time, keep speed the same. Sticky mixes should be
allowed to set a bit before application, or rolled in IRM®
powder to eliminate stickiness.
4. If trituration results in a non-coalesced mass (i.e. small
balls), increase trituration time, keep speed the same.
5. If the mixed mass of IRM®Material does not appear in
the press cap (s Fig. 3) then either replace the press
cap and mull for 5 seconds or insert a small ended
plugger into the cap and remove the mixed mass.
1.4 Placement of mixed IRM®Intermediate Restorative
Material
1.4.1 Mixed material may be carried to the
preparation with suitable placement
instrument. Adapt, contour and shape with
appropriate instruments.
1.4.2 Material may be smoothed by lightly
burnishing. Initial set occurs approximately 5
minutes from start of mix. Increased
temperature, humidity, and powder/liquid ratio
may accelerate set.
1.4.3 Upon set, remove matrix band if present.
Check and adjust occlusion as needed.
Additional carving or occlusal adjustment may
be accomplished with a round bur. Avoid
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