e. Plaster Bowls (BOWL, PLASTER OF PARIS MIXING). Plaster bowls are
made of rubber and are used for mixing impression materials, plaster, stone, and
investment materials. They are available in four sizes--extra large, large, medium, and
f. Mold and Shade Guides (GUIDE, MOLD, DENTAL)(GUIDE SHADE,
TEETH). Denture teeth and facings are made in a variety of sizes, forms, and shades
by many tooth manufacturers. Size and form are identified by letter or number as are
the shades. Mold and shade guides (figure 5-4) are available for denture teeth and
facings as special purchase items.
Figure 5-4. Shade guide.
g. Millimeter Gauge (CALIPER, VERNIER). The millimeter (Boley) gauge
(figure 5-5) is a measuring instrument calibrated in tenths of millimeters. It is used in
prosthodontics for determining tooth dimensions and making other measurements. This
item is listed in the 5110 series of the Medical Supply Catalog.
Figure 5-5. Millimeter (Boley) gauge.