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La Technique des Aciers Inoxydables. Le Soudage Electique. By MauriceCharlier. Brussels, 1935, J. E. Goossens.
The book deals with the technic of using stainless steel for dental purposesand with the method of soldering by means of electricity. It is entirely practical in its nature, describing the laboratory methods of constructing prostheticand orthodontic appliances from nonoxydizing steel. The orthodontic; appliances demonstrated are used in the Belgian College of Dentistry in Brussels(L 'Ecole Dentaire BeIge a Bruxelles), where Charlier teaches in the capacityof professor. The author's technic is highly advanced. Each step is standardized, described in detail, and illustrated; the making of bands, the construction of main arches and locking devices, and the addition of various kindsof auxiliary springs. The electric soldering is done with a special dental soldering machine made by a Belgian concern, which manufactures a fixed as wellas a portable type. Their use is shown on both stainless steel and preciousmetals.
The book is written in French; it contains 243 pages, with 280 illustrations,and is handsomely gotten up.
E. N.
