Dental cosmos . teeth, Fig. 8. The laterals, cuspids, etc., are then adjusted and articulated withease and certainty. It is obvious that by these means the length, fullness, articu-lation, and all the other adjustments requisite for the appearance, contour, andusefulness of the designed denture can be more exactly and certainly secured thanby the means commonly employed for this purpose. Fig. 9 shows a full upperdenture thus arranged. When the trial teeth have been satisfactorily fixed upon the plate and the lipsof the bases covered with wax to hold the teeth very firmly in place, the plate is
Dental cosmos . teeth, Fig. 8. The laterals, cuspids, etc., are then adjusted and articulated withease and certainty. It is obvious that by these means the length, fullness, articu-lation, and all the other adjustments requisite for the appearance, contour, andusefulness of the designed denture can be more exactly and certainly secured thanby the means commonly employed for this purpose. Fig. 9 shows a full upperdenture thus arranged. When the trial teeth have been satisfactorily fixed upon the plate and the lipsof the bases covered with wax to hold the teeth very firmly in place, the plate isto be held for a few minutes in cold water, then replaced in the mouth, a narrowroll of quite warm impression-wax laid upon the lower teeth, and the bite quickly Fig. 8. Fig. and carefully taken, keeping in view the labial and buccal surfaces of all thetrial teeth to be sure that they do not get displaced by the bite. After obtaining the articulating models in the usual way and carefully removingthe impression-wax, the trial plate and teeth will be found to be incomparable asguides for the selection, arrangement, and articulation of the permanent teeth. By arranging these upon a base-plate which can be removed from the cast topermit the trial plate to be from time to time substituted, a perfect correspondenceof the two plates may be obtained, and, by due provision and allowance for thethickness of the parting line of the vulcanizing flask, a perfect practical repro- HINTS AND QUERIES. 993 duction of the trial plate will result, and the completed denture he in everyrespect just what was accomplished with the trial plate. The new method maytherefore be confidently relied upon as precluding the usual necessity for toyingin the permanent teeth in order to corr
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Keywords: ., bookauthor, bookcentury1800, bookdecade1880, booksubjectdentistry
