The Dental cosmos . akes an impression in waxand makes a plaster model on which he places a thin layer of wax,and fits to this wire gauze, such as is used for window-screens, lettingthe wire come only to the necks of the teeth, and not cover the of Paris is then covered over this and the crowns of theteeth of sufficient thickness, which is removed and used as an FIRST DISTRICT DENTAL SOCIETY, STATE OF NEW YORK. 439 impression-cup, using but a small amount of thin plaster. Thedoctor uses laundry-blue to color the plaster to assist in marking theplace of separation, and glycerine a
The Dental cosmos . akes an impression in waxand makes a plaster model on which he places a thin layer of wax,and fits to this wire gauze, such as is used for window-screens, lettingthe wire come only to the necks of the teeth, and not cover the of Paris is then covered over this and the crowns of theteeth of sufficient thickness, which is removed and used as an FIRST DISTRICT DENTAL SOCIETY, STATE OF NEW YORK. 439 impression-cup, using but a small amount of thin plaster. Thedoctor uses laundry-blue to color the plaster to assist in marking theplace of separation, and glycerine as a separating fluid, with a smallportion of soapstone sprinkled over it. Dr. G. L. Curtis, of Philadelphia, examined a patient suffering with necrosis andpyorrhea alveolaris. The necrosis extended around three of thelower teeth and about one-fourth inch below the apex of the recommended to make an incision in line with the necrosed partand remove it, and treat with acidulated bichloride of mercury. Fig. Dr. H. A. Parr, of New York, illustrated his improvedmethod of attaching artificial dentures, whereby one or more teethmay be securely held in position in the mouth and convenientlyintroduced or removed. It can be locked in place with comfort , even though a number of stumps or natural teeth remainin the mouth. In diverging or converging teeth it is particularlyapplicable. Fig. i represents the superior part of the mouth with anumber of teeth remaining in the jaw, and the locking device 2 is a perspective view of the denture adapted to be fitted to the 440 THE DENTAL COSMOS. locking device. The natural teeth or roots are first fitted with a goldcap, then a flat bar, rectangular in cross-section, made of platinumand iridium, is soldered to the sides of the caps, reaching either fromtooth to tooth or only a part of the distance, and made to be incontact at one longitudinal edge with the gum. Fig. i shows thebars attached to the crowns. In Fig
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectdentist, bookyear1890
