1) Paterson, R. C.: Bacterial contamination and the exposed pulp, Brit. Dent. J., 140: 231, 1976.
2) Stenvik, A., Iverson, J. and Mjor, I. A.: Tissue pressure and histology of normal and inflamed tooth pulps in macaque monkeys, Arch. Oral. Biol., 17: 1501, 1972.
3) Watts, A.: Bacterial contamination and the toxicity of silicate and zinc phosphate cements, Brit. Dent. J., 146: 7, 1979.