1. Replacement of silver amalgam restorations by 50 dentists during 246 working days;Richardson;J Can Dent Assoc,1973
2. Placement and replacement of restorations;Mjor;Oper Dent,1981
3. Fluoride supplemented dental amalgam;Shannon;Oper Dent,1980
4. Hattab FN et al. Permeability of amalgam restorative materials. Biomaterials (in press).
5. Fluoride supplemented and non γ2 amalgam. A comparative clinical study into the primary and permanent dentition in children;Petersson;Swed Dent J,1985