. The Dental cosmos. Anchorage suitable for front tooth bridge. direction, and they may be capped andbanded in the usual manner. The postattached to the bicuspid cap may be bentso that the part which projects above it,and which is to carry the anterior endof the bridge, is made parallel with thelong axis of the crown of the adjoiningteeth. An impression and bite shouldthen be taken of the caps in position on Fig. A B A, Bridge partly removed to show parallelism of posts, b, Bridge in position. sity strongly insisted upon by mostwriters. It is true, of course, that paral-lelism is advanta
. The Dental cosmos. Anchorage suitable for front tooth bridge. direction, and they may be capped andbanded in the usual manner. The postattached to the bicuspid cap may be bentso that the part which projects above it,and which is to carry the anterior endof the bridge, is made parallel with thelong axis of the crown of the adjoiningteeth. An impression and bite shouldthen be taken of the caps in position on Fig. A B A, Bridge partly removed to show parallelism of posts, b, Bridge in position. sity strongly insisted upon by mostwriters. It is true, of course, that paral-lelism is advantageous, and indeed neces-sary in most cases where each end of abridge is formed by a shell crown, butwhere a bridge is formed from a porce-lain rod or where tube teeth are em-ployed, it is not necessary if a methodsimilar to that shown in Fig. 146 isemployed. The foregoing illustrationshows a lower molar tilted forward, and the roots. The impression will doubt-less come away, leaving the caps, andthese should be replaced in the impres-sion before it is cast. The molar capshould then have a separate post sol-dered to it, and parallel to the post at-tached to the bicuspid cap. A suitableporcelain rod having been chosen, a holeshould be drilled through it correspond-ing with the bicuspid post. The shap-ing-up of the porcelain rod should then 1340 THE DEXTAL COSMOS. be proceeded with, the post acting as aguide. Afte
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