Method of preserving teeth with attached live root membrane

Details Method of preserving teeth with attached live root membrane Method of preserving teeth with attached live root membrane

1975-03-25

1976-10-05

O'Dea, William F.

Refrigeration

Processes

Treating an article

32 10A, 62 78, 128 92G, 195 17, F25D 1304

Patent

active

039837122

ABSTRACT:
The invention is concerned with a method of preserving extracted teeth with attached live root membrane. After treating the teeth in order to eliminate bacteria and fungi in a nutrient solution to preserve the viability of the root membrane cells the teeth are subjected to a freezing process in two stages and in the presence of a similar nutrient fluid, the temperature being lowered slowly in the first stage to a value between -20.degree. and -50.degree.C and rapidly in the second stage to a value below -50.degree.C, preferably below -150.degree.C.

REFERENCES:
patent: 3303662 (1967-02-01), Moline et al.
R. J. Coburn et al., The Development of an Experimental Tooth Bank using Deep Freeze and Tissue Culture Techniques, Journal of Oral Therapeutics and Pharmacology, vol. 2, 1966.

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