1. Microstructure of amalgam surfaces;Chan;J Prosthet Dent,1976
2. Amalgam polishing;Goldfogel;Oper Dent,1976
3. A suggested technique for polishing amalgam restorations;Charbeneau;J Mich State Dent Assoc,1965
4. Surface roughness of restorations;Heath;Br Dent J,1976
5. Historically, when and by whom was silver amalgam introduced?;De Maar;Int Coll Dent Sci Educ Bull,1972