1. 2. EEC directive 75/318/EEC . On the approximation of the laws of member states relating to the analytical, pharmacotoxicological and clinical proprietary medicinal products. Publications of the Official Journal of the European Communities L 147/1 (1975 ) Section F para 4 "Safety Tests".
2. 3. Biological testing of medical and denial materials and devices . I.S.O. 10993 (1991 ) - The International Organisation for Standardisation.
3. 4. Biological evaluation of dental materials . I.S.O. Technical report 7405 (1984 ) The International Organisation for Standardisation.
4. Bacterial contamination and the “toxicity” of materials to the exposed pulp