Catalogue of dental materials, furniture, instruments, etc., for sale . No. 1. No. 2. Of the same style, quality, and finish as our best Forceps. 1, 6 inches long, as shown in Cut ........ $ No. 1, 5 . No. 2, 51 .Dr. Morrisons pattern Dr. Corydon Palmers Wedge Cutters .Nickel-Plated, 50 cents extra. DENTAL CATALOGUE. 175 MATRICES AND MATRIX PLIERS. INVENTION OF DR. LOUIS JACK. U\D. Our Cuts represent six pairs, right and left, of the Matrices, and the Pliers forplacing them and the wedges in position. The small Cuts on the right, unnumbered,exhibit a Double
Catalogue of dental materials, furniture, instruments, etc., for sale . No. 1. No. 2. Of the same style, quality, and finish as our best Forceps. 1, 6 inches long, as shown in Cut ........ $ No. 1, 5 . No. 2, 51 .Dr. Morrisons pattern Dr. Corydon Palmers Wedge Cutters .Nickel-Plated, 50 cents extra. DENTAL CATALOGUE. 175 MATRICES AND MATRIX PLIERS. INVENTION OF DR. LOUIS JACK. U\D. Our Cuts represent six pairs, right and left, of the Matrices, and the Pliers forplacing them and the wedges in position. The small Cuts on the right, unnumbered,exhibit a Double Matrix for use in the case of two proximals. These mechanical aids for filling proximal cavities were described by Dr. Jack inthe Dental Cosmos for April, 1871. Since that time a great many dentists haveadopted his method, and we believe many more would do so if aware of its value. Thepoints especially notable in the use of the Matrix, are, to cut away the masticatingsurface of enamel to the depth of the cavity ; to prepare the edges flat and smooth; tocut down to sound bone in the neck of the tooth, forming the base of the cavity, andshaping it so that the Matrix will fit accurately at the cervical wall. Having excavatedthe cavity and cut a retaining groove along the buccal and palatal walls (terminating atthe very surface of the masticating walls of the enamel), select a Matrix the concavedsurface of which
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