. The Dental cosmos. c Four-tooth bridge with porcelain extension. in Fig. 114, in Chapter IX, wherebya tube crown or section of tube rod mayhave its base hollowed out to afford GIRDWOOD.—TUBE TEETH AND PORCELAIN RODS. 1337 anchorage without the necessity of inter-fering with the existing mode of attach-ment. Fig. 140 shows two central in-cisors so shaped from rod No. 30, withtubes 5^ millimeters apart. The fore-going method may be applied for the Fig. tension of the principle is shown in , where it will be seen that one rootis missing. Proceeding, then, with the subject ofanchora
. The Dental cosmos. c Four-tooth bridge with porcelain extension. in Fig. 114, in Chapter IX, wherebya tube crown or section of tube rod mayhave its base hollowed out to afford GIRDWOOD.—TUBE TEETH AND PORCELAIN RODS. 1337 anchorage without the necessity of inter-fering with the existing mode of attach-ment. Fig. 140 shows two central in-cisors so shaped from rod No. 30, withtubes 5^ millimeters apart. The fore-going method may be applied for the Fig. tension of the principle is shown in , where it will be seen that one rootis missing. Proceeding, then, with the subject ofanchorage, Fig. 142 shows an upperbridge suitable for a case in which boththe bicuspids and first molar are miss-ing, and the second molar so badlybroken down that it requires canine is here utilized for the an-terior anchorage, the pulp being devital-ized for the purpose, and a post fitted tothe canal, on to which an inlay is formedto fill the cavity. To this a post is ex-tended horizontally backward the fulllength of the porcelain bridge. The pos-terior anchorage is obtained by solderinga vertical post in the center of the molarcap, its exact position and directionbeing got by first drilling a tube throughthe porcelain in the manner before Shows shell crowns. replacement of a pair of detached- orfixed-post crowns, the renewal of whichfrom some or any cause may necessitatethis, and where it is undesirable to at-tempt removal of the existing an
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Keywords: ., bookcentury1900, bookdecade1910, bookiddent, booksubjectdentistry
