. The principles and practice of dental surgery. nd by frequently removing theplate, it will prevent the accu-mulation of the secretions in thecul-de-sac. A simple plate likethe one represented in Fig. 302,will be all that is required toremedy the defect; and this, in fact, will probably be found the best form for all cases, whetherthe openings be large or small. Although the stability of the plate will very much dependupon the width of the clasps, the latter should never be so wideas to press upon the gums around the necks of the teeth to whichthey are applied, as in that case they will be pr
. The principles and practice of dental surgery. nd by frequently removing theplate, it will prevent the accu-mulation of the secretions in thecul-de-sac. A simple plate likethe one represented in Fig. 302,will be all that is required toremedy the defect; and this, in fact, will probably be found the best form for all cases, whetherthe openings be large or small. Although the stability of the plate will very much dependupon the width of the clasps, the latter should never be so wideas to press upon the gums around the necks of the teeth to whichthey are applied, as in that case they will be productive of irrita-tion, and ultimately cause the destruction of the alveoli and lossof the teeth. Nor should they press upon the teeth so as to forcethem apart or draw them toward each other, as, in either case,the effect would be gradually to loosen and displace the short, the same precautions are necessary in the applicationof clasps to an artificial-palate plate, as to one designed merelyto serve as a support for artificial 836 ARTIFICIAL PALATE, VELUM AND UVULA. All the details of construction are the same in the case orsimple obturators as in the making of an upper plate. If a drumis soldered on tlie upper side of the plate after the plan of De-sirahode, or if a very deep arch is made shallower by solderinga second plate on the lingual side, a small hole must be made forthe escape of heated air in soldering, Avhich may afterward beclosed with a gold screw, and filed off smoothly. AN ARTIFICIAL TALATE, WITH A VELUM AND UVULA. It sometimes happens, in eases of congenital fissure of thepalate, that the margins of the velum are so far apart as topreclude the possibility of uniting them by any surgical opera-tion, an<l, at other times, these parts are wholly destroyed byulceration; it is in such cases that an artificial velum is required,and to supply which, the ingenuity of art has been taxed to itsfullest extent. Various mechanical contrivances have been
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