Schubert, E.D. , and Glorig, A.Noise Exposure from Dental Drills, J. Amer. dent. Ass., 66:751-57, 1963.
2.
Grundy, J.R.Symptoms Attributedto the Air Turbine, Dent. Pract., 17:17-20, 1966.
3.
Nixon, G.S., and Tilston, D.R.G.Inhalation of Oil Particles from Air Turbine Handpieces, Brit. dent. J., 119:114-17, 1965.
4.
Kazantzis, G.Air Contamination from High-Speed Drills, Proc. Roy. Soc. Med., 54:242-44, 1961.
5.
Schwartzenbach, G., Biedermann, W., and Ban-Gerter, F., Nueu einfache Titriermethoden zur Bestimmung der Wasserharte, Helv. Chim. Acta., 29:811-13, 1946.
6.
Mavrogordato, A.Value of the Konimeter, being an investigation into the methods and results of dust sampling as at present practised in the mines of Witwatersrand. Publ. S. African Inst. Med. Res. No. XVII., The Institute Johannesburg , Johannesburg, South Africa, 1923 , p. 226.
7.
Mccrae, J.The Ash of Silicotic Lungs, Publ. S. African Inst. Med. Res. , No. I, The Institute Johannesburg , Johannesburg, South Africa, 1913 , p. 6.