Frank, R.M., Sognnaes, R.F., and Kern, R.Calcification of Dental Tissues with Special Reference to Enamel Ultrastructure . In Calcification in Biological Systems (Publication No. 64) . American Association for the Advancement of Science, 1960.
2.
Hall, D.M.Study of the Submicroscopic Structure of Human Dental Enamel by Electron Microscopy , J. dent. Res., 37:243-53, 1958.
3.
Johansen, E., and Parks, H.F.Electron-microscopic Observations on the Three-dimensional Morphology of Apatite Crystallites of Human Dentin and Bone. J. biophys. biochem. Cytol., 7 :743-46, 1960.
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-. Electron-microscopic Observations on Soft Carious Human Dentin , J. dent. Res., 40:235-48, 1961.
5.
-. On the Three-dimensional Morphology of Crystallites in Developing Deciduous Human Enamel, ibid., p. 702, 1961 (abstract).
6.
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7.
Johansen, E., and Nordback, L.G.The Chemistry of Carious Lesions. III. The Fluoride Content of Carious Dentin , Proc. Int. Ass. dent. Res, 1962 .
8.
Nalbandian, A. , Gonzales, F., and Sognnaes, R.F.Sclerotic Changes in Root Dentin of Human Teeth as Observed by Optical, Electron, and X-Ray Microscopy, J. dent. Res., 39:589-607, 1960.
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Scott, D.B., and Nylen, M.U.Changing Concepts in Dental Histology, Ann. N.Y. Acad. Sci. , 85 :133-44, 1960.
10.
Watson, M.L. , and Robinson, R.A.Collagen-Crystal Relationships in Bone as Seen in the Electron Microscope. II. Electron Microscope Study of Basic Calcium Phosphate Crystals, Amer. J. Anat., 93:25-60, 1953.
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Johansen, E.A Comparison of the Ultrastructure and Chemical Composition of Sound and Carious Enamel from Human Permanent Teeth. Proc. of International Symposium on the Composition Properties and Fundamental Structures of Tooth Enamel, London, England, London Hospital Medical School, 1964.
12.
-. Ultrastructural and Chemical Studies on Caries. In Mechanisms of Hard Tissue Destruction, ed. R. F. Sognnaes, pp. 187-211. Washington, D.C.: A.A.A.S., 1963.
