DEVELOPMENT OF A NEW TOOL IN RESTORATIVE DENTISTRY

Standards for accurate working casts have not been established; this is unfortunate. Cone-shaped dowel pins have die stems whose shape might cause unnoticed errors in fixed cast restorations. The most desirable working cast is one with precision-fitted removable dies. A new dowel pin has been designed which has a new die stem and integral prepositioning means. Its use simplifies working-cast construction and handling. Permanently mounted Pindowl casts will reduce errors, adjustments, and costs. © 1969 The C. V. Mosby Company.