Ney surveyor system
This program presents a method for planning, designing and constructing successful removable partial dentures. Emphasis is placed on treating the denture as a unit rather than as a group of clasps and bars designed without relationship to each other. Slides of drawings and photographs of the system are used to illustrate certain points. The flexibility of the Ney system in providing an orderly procedure for solving any of the various partial denture design problems is explored. The features of the Ney surveyor which permit this flexibility are described. The principles of surveying, the importance of the survey line and the degree to which undercut areas can be varied by tilting the model on the surveyor are discussed as the features of the Ney system which permit the user to solve partial denture problems. The structure and uses of the six principle clasps of the Ney System of Clasp Design are discussed in detail. These clasps include the No. 1,No. 2 and the No. 1-No. 2 combination. As stated in the program these are the double-bracing, double-retaining clasps for all unilateral restorations and for those bilateral cases where the abutments present retentive and bracing areas on both the buccal and lingual of each abutment. The other three clasps are the back-action, reverse back action and the ring clasp. They are the single bracing, single-retaining clasps for bilateral cases with tilted abutments
Visual Material, English, [196-?]
[The Ney Co.], [Bloomfield, Conn.], [196-?]