1. Environmental pathology of the teeth;Gorlin,1970
2. Saliva and dental pellicles;Scannapieco,1990
3. Clinical periodontology;Glickman,1964
4. The effect of iron compounds on dental caries: a review;Lacy;Clin Prev Dent,1979
5. Auger electron spectroscopy of iron in dental pellicle from stainers and non-stainers;Nordbo;Acta Odontol Scand,1984