. The principles and practice of dental surgery. be a little :^=^mMthinner than when applied Conly to a small surface; ;also thinner when the archis deep or irregular. Thepurer the gold is, thethicker must be the very Avide clasps, too,are employed, it is not necessary that the gold should be asthick as is required for narrow ones; and low or wide backingsneed not be so tliick as long or narrow ones. Lower plates,if wired around the edore or doubled over the middle third,may be made of the same thickness as an upper plate. Butthese are matters which the judgment of the dentist alone
. The principles and practice of dental surgery. be a little :^=^mMthinner than when applied Conly to a small surface; ;also thinner when the archis deep or irregular. Thepurer the gold is, thethicker must be the very Avide clasps, too,are employed, it is not necessary that the gold should be asthick as is required for narrow ones; and low or wide backingsneed not be so tliick as long or narrow ones. Lower plates,if wired around the edore or doubled over the middle third,may be made of the same thickness as an upper plate. Butthese are matters which the judgment of the dentist alone canproperly determine, and, consequently, no rules can be laiddown upon this subject, from wiiich it will nut sometimes be ne-cessary to deviate. Gauge plates are, unfortunately, not uniform. For manyyears the most reliable were those manufactured by Stubl) it is difficult to procure them. At the same time, it is veryimportant that some standard should be adopted in the profes-sion. Under these circumstances, we approve the suggestion of. 640 MANNER OF MAKING GOLD PLATE. Dr. S. S. White, who recommends the gauge-plate given in , which has been adopted by the principal brass manufactur-ers of this country. Fig. 185.
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