. The Dental cosmos . per cent, of failures when cohesive goldis used in the gingival portion of thesecavities. Non-cohesive gold is used, also. Fig. in cavities in the occlusal, labial, andbuccal surfaces, as these cavities all havefive walls, and the gold may be securely 1210 THE DENTAL COSMOS. retained. The members of the professionwho are not familiar with the techniqueof non-cohesive foil seem to dread it andconsider it very difficult to use, prob-ably because it is different from cohesivefoil in its action. It is, however, fareasier to handle than cohesive foil. Proximo-occlusal cav
. The Dental cosmos . per cent, of failures when cohesive goldis used in the gingival portion of thesecavities. Non-cohesive gold is used, also. Fig. in cavities in the occlusal, labial, andbuccal surfaces, as these cavities all havefive walls, and the gold may be securely 1210 THE DENTAL COSMOS. retained. The members of the professionwho are not familiar with the techniqueof non-cohesive foil seem to dread it andconsider it very difficult to use, prob-ably because it is different from cohesivefoil in its action. It is, however, fareasier to handle than cohesive foil. Proximo-occlusal cavities in bicuspidsand molars. In cavities in the proxi-mo-occlusal surfaces of bicuspids andmolars, non-cohesive gold in the gin-gival half may be used either in the formof cylinders or of a mat. If the axialwall is very short, between the gingivaland pulpal walls, a mat may be used togood advantage. A mat is simply anoblong cylinder, and is thicker in thecenter of the cavity than at the walls.(Fig. 2.) This can be avoided, however,by having the cylinder quite a littlelonger than the bucco-lingual diameter ofthe gingival wall, and folding the endst
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentist, bookyear1912
