A practical treatise on mechanical dentistry . of teeth in the usual form, and attached to its posterior edge anapron of soft rubber, which shall bridge the opening on its in-ferior surface, extending nearly to the pharynx. Fig. 171 repre- ARTIFICIAL TREATMENT OF PALATAL DEFECTS. 33l sents the set of teeth with the palate attached. In Mr. Sercombesappliance this apron was made of the common sheet rubber inthe market, prepared for other uses, and is objectionable for tworeasons: First, a want of purity in the materials of which it is com-pounded, in many instances substances being used in its m
A practical treatise on mechanical dentistry . of teeth in the usual form, and attached to its posterior edge anapron of soft rubber, which shall bridge the opening on its in-ferior surface, extending nearly to the pharynx. Fig. 171 repre- ARTIFICIAL TREATMENT OF PALATAL DEFECTS. 33l sents the set of teeth with the palate attached. In Mr. Sercombesappliance this apron was made of the common sheet rubber inthe market, prepared for other uses, and is objectionable for tworeasons: First, a want of purity in the materials of which it is com-pounded, in many instances substances being used in its manufacturewhich would prove deleterious to the health of the patient; and,second, its uniformity of thickness. It is far preferable, make a mold which will produce a palate of pure and harmlessmaterials, and which shall be of sufficient thickness in the central part,and at its anterior edge, to give it stability, and shall have a thinand delicate boundary wherever it comes in contact with movable Fig. tissue. Such a palate may be made in a mold by substantiallythe same process as hereinafter described. (See page 386.) Itmay be secured to the plate by a variety of simple means. One,which will give as little trouble to the patient as any other,is to make a series of small holes along the edge of the plateand stitch it on with silk; or fine platina, gold, or silver wire maybe used. It is desirable to have the plate and palate present a uniformsurface on the lingual side. In fitting the plate, therefore, it mavbe raised along the posterior edge from Jg to -^ of an inch,according to the thickness of palate desired. The rubber will thus 382 MECHANICAL DENTISTRY. be placed on the palatine surface of the plate and present uniformityon the lingual surface. A little thought will show that in this case the patient must edu-cate the muscles of the pharynx alone to do the work of shutting offthe nares, which in the former case was performed by them in con-junction with th
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903
