Principles and practice of operative dentistry . U Herbst burnishers. to the floor of the cavity. Successive cylinders are then introduced andburnished against the walls of the cavity, keeping the edges next to thewalls higher than the centre of the filling. As the filling nears completion,the cylinders should be so placed that they can be burnished against andover, the enamel margins. The centre of the filling can then be finishedby adding other cylinders by the same method, or with cohesive gold,condensed with foot-pluggers and the mallet. Fillings made by theHerbst method are not so dense a
Principles and practice of operative dentistry . U Herbst burnishers. to the floor of the cavity. Successive cylinders are then introduced andburnished against the walls of the cavity, keeping the edges next to thewalls higher than the centre of the filling. As the filling nears completion,the cylinders should be so placed that they can be burnished against andover, the enamel margins. The centre of the filling can then be finishedby adding other cylinders by the same method, or with cohesive gold,condensed with foot-pluggers and the mallet. Fillings made by theHerbst method are not so dense as those made with the mallet, and thesurface does not wear so well, as it shows a tendency to flake and bruiseunder stress of mastication. Contour fillings cannot be as successfullymade by this process as with cohesive gold, and yet, by the use of thematrix, thoroughly good approximal fillings have been introduced in thebicuspids and molars. COHESIVE FOIL. Cohesive or annealed foil is stiff and harsh as compared with thevelvety softness of non-
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
