A practical treatise on mechanical dentistry . end) of the long traction bar, Fig. 239. In use, the clamp bands(D) are attached to the anchor teeth, and the plain bands (A, A)cemented to the central incisors. The bow-spring is now placed inposition. Occipital resistance is obtained by means of a netted cap, fas- CORRECTION OF DENTAL IRREGULARITIES. 445 tened to a circle of wire fitted to the head, to which are attachedrubber bands. When the cupped standard of the traction bar hasbeen placed over the central spur of the bow-spring, the rubberbands of the cap are drawn forward and looped over th
A practical treatise on mechanical dentistry . end) of the long traction bar, Fig. 239. In use, the clamp bands(D) are attached to the anchor teeth, and the plain bands (A, A)cemented to the central incisors. The bow-spring is now placed inposition. Occipital resistance is obtained by means of a netted cap, fas- CORRECTION OF DENTAL IRREGULARITIES. 445 tened to a circle of wire fitted to the head, to which are attachedrubber bands. When the cupped standard of the traction bar hasbeen placed over the central spur of the bow-spring, the rubberbands of the cap are drawn forward and looped over the curvedends of the traction bar, as shown in Fig. 240. This cap, tractionbar, and rubber bands, are worn only at night, on account of their Fig. conspicuousness. During the day, rubber rings (B, Fig. 238) arecaught over the tubes on the molar bands and secured by ligaturesto projections on the bow-spring in the region of the cuspid appliance in position, as worn during the day, is illustrated byFig. 241. After reduction of anterior protrusion we are met with the diffi-culty of retaining the results gained. Although the posterior teeth Fig. 239.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903
