A practical treatise on artificial crown- and bridge-work . an articulation in hand, and with the means alreadydescribed for swaging gold or platinum plate to fit the cusps andarticulating surfaces of either the natural or artificial teeth, itshould be within the capacity of any competent dentist to com-plete a suitable bridge; although there are practical points thatcan only be imparted by clinical instruction and actual demon-stration in the mouth. Such a bridge is shown in position byFig. 478. CHAPTER XIII. PARTIAL CAP AND PIN-BRIDGE METHODS. Dr. TV. F. Litchs processes in this style of wor
A practical treatise on artificial crown- and bridge-work . an articulation in hand, and with the means alreadydescribed for swaging gold or platinum plate to fit the cusps andarticulating surfaces of either the natural or artificial teeth, itshould be within the capacity of any competent dentist to com-plete a suitable bridge; although there are practical points thatcan only be imparted by clinical instruction and actual demon-stration in the mouth. Such a bridge is shown in position byFig. 478. CHAPTER XIII. PARTIAL CAP AND PIN-BRIDGE METHODS. Dr. TV. F. Litchs processes in this style of work have forspecial cases many decided advantages, and are thus describedby him:1 Fig. 479 represents a typical case, in which a lateral incisor(crown and root) has been lost, the cuspid and front incisor, fullyvitalized, and without approximal carious cavities, remaining inposition. To Make a Pin and Plate Bridge.—1. Take in plaster anaccurate impression of the cuspid and incisor and the this obtain a plaster model of the parts. Fig. 2. Make from pure gold, rolled to the thinness of No. 26,standard gauge, base-plates, to be carefully adjusted to the palato-approximal surfaces of the cuspid and incisor. These can bemade l»y swaging on dies and counter-dies obtained from themodel, bu1 more conveniently by bending the gold into shapeupon flic plaster model and pressing and burnishing it intoperfect adaptation upon the natural teeth. 3. Select a plain plate porcelain tooth of suitable length,Bbape, ami shade, and wide enough to fit easily into the inter-space. Lei the neck of the tooth rest lightly upon the gum. 1 Dental Cosmos, vol. xxviii, No. 8. PARTIAL CAP AND PIN-BRIDGE METHODS. 237 4. With pure gold or platinum make a backing for the por-celain tooth. 5. Place the tooth thus prepared and the base-plates alreadymade upon the cast and accurately adjust the approximal edgesof the base-plates to the backing of the porcelain tooth in situupon the cast. 6. W
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