Abstract

References
1.
Crowell
W.
(1927 ), J. Am. Dent. A. , 14 , 1030 .
2.
Fish
E. W.
(1932 ), “An Experimental Investigation of Enamel Dentine, and the Dental Pulp” . London.
3.
Gurley
W. B.
Van Huysen
G.
(1937 ), J. Am. Dent. A. , 21 , 820 .
4.
Manley
E. B.
(1936 ), Brit. Dent. J. , 60 , 321 .
