1. The term “stone” is used throughout this article to denote a hard gypsum dental plaster.
2. Hydrocolloidal Impression Technique for Inlays and Fixed Bridges;Sears;D. Digest,1937
3. History of Dentistry;Lufkin,1938
4. The Restoration of an Impaired Masticatory Apparatus to Cuspal Coordination;Thompson;Pacific Dent. Gaz.,1929