Dental cosmos . prevent the spring from slipping when ad-justed in position. A strong spring was made of piano wire, or 18 U. S. gauge, and the ends bent at right angles. One of theends was cut short to fit into the hole made in the plate opposite the V gum-colored porcelain fillings. 353 tooth to be moved, the other end left long enough to pass throughthe plate and sharp-pointed to enter a hole in the tooth to be very small hole was drilled in the enamel of the tooth, for thesharp point of the spring to rest in. In many cases such a springwill keep the plate in position, but
Dental cosmos . prevent the spring from slipping when ad-justed in position. A strong spring was made of piano wire, or 18 U. S. gauge, and the ends bent at right angles. One of theends was cut short to fit into the hole made in the plate opposite the V gum-colored porcelain fillings. 353 tooth to be moved, the other end left long enough to pass throughthe plate and sharp-pointed to enter a hole in the tooth to be very small hole was drilled in the enamel of the tooth, for thesharp point of the spring to rest in. In many cases such a springwill keep the plate in position, but should the plate slip it may befastened to the bicuspid with ligatures. Fig. 4 shows the same irregularity with a different appliance forbringing the tooth into place. This appliance is not my own idea,but I have been so successful with it for the past seven years that Ideem it of value to the profession. It is made of German silver,which possesses all the requisite qualities. I have three thicknesses a Fig. of it ready for use, Nos. 29, 31, and 32, U. S. gauge. Strips are cutto i of an inch in width, according to the strength required,and bent with small round-nosed pliers into the shape representedat A, to fit the teeth (Fig. 4). This is removed every day, andwith round-nosed pliers the ends are bent, the spring shortened, andforced to place upon the tooth. This little spring acts in two direc-tions : 1st, to carry the teeth laterally and thus provide room, and 2d,to draw tne irregular tooth into position. This appliance can only beused when the crown of the irregular tooth is fully erupted. Teethsituated outside the arch may be thus brought into line as well asthose which are situated inside. In the latter case it is necessaryto wear a plate to keep the jaws apart while the tooth is in transit. GUM-COLORED PORCELAIN FILLINGS, BY J. M. COMEQYS, , ST. ALBAXS, VT. Apropos to the paper with the above title, read before the ChicagoDental Society by Dr. A. H. Thompson, of
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Keywords: ., bookauthor, bookcentury1800, bookdecade1880, booksubjectdentistry
