A practical treatise on mechanical dentistry . ontact of the denture with thegum on which it rests but cannot be pressed into because of the BRIDGE DENTURES. 62CJ cap crown supports. The original denture, of which this is a dupli-cate, is now in satisfactory use. Fig. 635 represents the articulated cast of a case for which asimilar tongue and clasp vulcanite denture was made. This is illus-trated in Fig. 636, which needs no description. Fig. 637 showsthe denture in place, the original having been made for and placedin the mouth of a patient exhibited at the clinic of the Odontolog-ical Society
A practical treatise on mechanical dentistry . ontact of the denture with thegum on which it rests but cannot be pressed into because of the BRIDGE DENTURES. 62CJ cap crown supports. The original denture, of which this is a dupli-cate, is now in satisfactory use. Fig. 635 represents the articulated cast of a case for which asimilar tongue and clasp vulcanite denture was made. This is illus-trated in Fig. 636, which needs no description. Fig. 637 showsthe denture in place, the original having been made for and placedin the mouth of a patient exhibited at the clinic of the Odontolog-ical Society of Pennsylvania, at Philadelphia, in December, 1888. These are simple examples of a class of work having a wide rangeof application and capable of construction without the trouble andcost of all-gold plate-work. The sockets and spring tongues require some skill and nicety ofworkmanship to insure a close fit of the one in the other so thatthe attachment shall be firm, yet capable of easy-designed detach-ment for cleansing or repair. Fig. A notable advantage of this mode of constructing dentures forthe upper jaw is manifest in the fact that the surface of the platewhich rests upon the gums need only be wide enough to cover theridge, and thus avoid the common interference of artificial dentureswith the function of speech. Dr. Davenports Method.—The following method of construct-ing partial dentures, described by Dr. J. L. Davenport in the Den-tal Cosmos is an amplification of the principle of attachment in-volved in the process just considered. The case treated was one where the only teeth remaining in theupper jaw were the six front teeth, the three molars on the rightside, and the first bicuspid on the left. The crowns of the frontteeth were wholly obliterated from excessive attrition consequenton the loss of the occluding back teeth, necessitating the exclusiveuse of the former in mastication, as shown in Fig. 638. The shorten- 630 MECHANICAL DENTISTRY. ing of the lowe
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903
