. Principles and practice of filling teeth. (Fig. 29.) Beginning with the tooth farthest to the left, the dam shouldbe carried consecutively over each tooth toward the right till allare included. The strips of dam between the holes should beforced well into the interproximal spaces by a see-sawing orsti-etching niorion exerted by the second finger of the left handand the in<UX finger of the right, so that if possible theedges of thok rootwiso. The outer edges of the 70 PRINCIPLES AND PRACTICE OF FILLING TEETH. dam may now be fastened back with the hokler, after which liga-tures may be appli
. Principles and practice of filling teeth. (Fig. 29.) Beginning with the tooth farthest to the left, the dam shouldbe carried consecutively over each tooth toward the right till allare included. The strips of dam between the holes should beforced well into the interproximal spaces by a see-sawing orsti-etching niorion exerted by the second finger of the left handand the in<UX finger of the right, so that if possible theedges of thok rootwiso. The outer edges of the 70 PRINCIPLES AND PRACTICE OF FILLING TEETH. dam may now be fastened back with the hokler, after which liga-tures may be applied wherever necessary, and the comfort of thepatient looked after as previously indicated. For the anterior teeth of the lower jaw the grasp of the rubberin the left hand is practically the same as for the upper teeth, butthe grasp with the right hand is entirely different. Instead ofgathering the edge of the dam nearest the operator in the palm^ Fig. the grasp is made from the lower margin of the dam with thethumb uppermost. The grip is exerted by curling all four fin-gers up into the palm and gathering the lower edge of the rubberbetween the ends of the fingers and the palm. This leaves thethumb free to stretch the holes over the teeth in conjunction withthe second finger of the left hand (Fig. 30). But the method offorcing the dam to place is different from that of the upper teeth. EXCLUSION OF MOISTURE DURING OPERATIONS. «i When stretching the holes over the upper teeth the end of thesecond finger of the left hand is carried along the labial surfaceof the tooth, while with the lower teeth it is carried into the mouthand along the lingual surface, the thumb forcing the dam overthe labial surfaces. To gain an intelligent conception of the methods of procedurehere outlined, l)oth as regards the handling of the clamp forceps Fig. 30.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentalrestorationper
