. The Dental cosmos. century dentists have beenproving and approving the efficiency of the DonaldsonPulp=Canal Cleanser. LONG HANDLE SHORT HANDLE SHORT WITHOUT HANDLE LONG WITHOUT HANDLE Its three strong features are the round tapering shaft,the spiral barbing, and the spring-temper. It can be entered into the canal with a screw motion;its spring-temper gives notice of any obstruction; it canbe released if jammed by unscrewing a trifle; and thebackward slant of the barbs gives an all-round hold onthe pulp in withdrawal. The all-round barbing makes the Donaldson Cleanserespecially effective in
. The Dental cosmos. century dentists have beenproving and approving the efficiency of the DonaldsonPulp=Canal Cleanser. LONG HANDLE SHORT HANDLE SHORT WITHOUT HANDLE LONG WITHOUT HANDLE Its three strong features are the round tapering shaft,the spiral barbing, and the spring-temper. It can be entered into the canal with a screw motion;its spring-temper gives notice of any obstruction; it canbe released if jammed by unscrewing a trifle; and thebackward slant of the barbs gives an all-round hold onthe pulp in withdrawal. The all-round barbing makes the Donaldson Cleanserespecially effective in enlarging the canal by a push andpull motion. Five Sizes,—Extra Fine, Fine, Between Medium and Fine, Medium, and Large,-in boxes and packages of a half dozen, separate sizes and in various assortments. Without handles (Short or Long) per half doz. $ With handles (Short or Long) per half doz. $; each .25 Send for Catalog. THE S. S. WHITE DENTAL MANUFACTURING CO., Sole Sales Agent S. S. White Post-Extractor D. 1 A B C 4 1, Trephine for direct, and 2, Trephine forangle handpieces. 3, Screw-stock. 4, Post-extractor. A, B, C, D, post and root at various stagesof the operation. Removing a broken dowel-post from aroot is a ticklish job with ordinary ap-pliances. With the S. S. White Post-Extractor it is simplified and made easyand sure. You merely reduce the brokenend of the post,—tenon it,—cut a thread onthe tenon, apply the Extractor, and thestump of the post is lifted out without injuryto the root. Accompanying the Extractorare a trephine for making the tenon, and ascrew-stock for cutting the thread. Theset is complete and a beautiful example ofthe application of mechanical principles tothe solution of a vexing problem. Complete set in box $ THE S. S. WHITE DENTAL MANUFACTURING CO. December 1914] ADVERTISEMENTS 11 FINDING the CAVITIES andPROVING the FILLINGS r / / ( ^ r il II 1)11 II \ 11 Il 1 2 3 4 5 6 7)1 fl!^ 10 11 12
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Keywords: ., bookcentury1900, bookdecade1910, bookiddent, booksubjectdentistry
