Principles and practice of operative dentistry . Royce plugger-points 314 OPERATIVE DENTISTRY. With tlie introduction of heavy gold-foils came the use of heavy mal-lets, weighing from three to four ounces or more. It was thought bythose using these extremely heavy foils that heavy malletswere necessary in order to weld the surfaces of the extremes in heavy foil were soon found to be unde-sirable, except for finishing fillings, and with the decadencein the use of these foils the heavy mallet ceased to findadvocates. Before the discovery that rubber sheeting or dam couldbe so util
Principles and practice of operative dentistry . Royce plugger-points 314 OPERATIVE DENTISTRY. With tlie introduction of heavy gold-foils came the use of heavy mal-lets, weighing from three to four ounces or more. It was thought bythose using these extremely heavy foils that heavy malletswere necessary in order to weld the surfaces of the extremes in heavy foil were soon found to be unde-sirable, except for finishing fillings, and with the decadencein the use of these foils the heavy mallet ceased to findadvocates. Before the discovery that rubber sheeting or dam couldbe so utilized as to exclude the moisture from a cavityduring the operation of filling a tooth with gold the oper-ator was obliged to employ one hand in holding the napkin,while the other was used to introduce the gold and consoli-date it. This made it necessary to have an assistant to dothe malleting. For various reasons, however, suitable assist-ance could not always be obtained; consecjuently inventivegenius was called into activity, and several ingenious auto-matic mallets were devised, in which by th
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
