The arrangement of tooth enamel microcrystals has been studied on CO33- bound electrons by electron paramagnetic resonance. It was found that noncarious human maxillary central incisors have a greater degree of alignment of tooth enamel microcrystals than the carious ones. The outermost surface layer of enamel showed a greater crystallite degree of alignment than other parts.
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References
1.
Scott, D.B.; Simmelink, J.W.; and Nygaard, V.: Structural Aspects of Dental Caries, J Dent Res53: 165-178, 1974.
2.
Nichol, T.; Judd, G.; and Ansell, G.S.: A Two-Stage Model for Human Enamel Demineralization as Determined by Scanning Electron Microscope Analysis, J Dent Res52: 487-493, 1973.
3.
Poole, D.F.G:, and JOHNSON, N.W.: The Effects of Different Demineralizing Agents on Human Enamel Surfaces Studied by Scanning Electron Microscopy, Arch Oral Biol12: 1621-1634, 1967.
4.
Sharpe, A.N. : Influence of the Crystal Orientation in Human Enamel on Its Reactivity to Acid as Shown by High Resolution Micro-radiography , Arch Oral Biol12: 583-591, 1967.
5.
Boyde, A.: Discussion, in Fearnhead, R.W., and Stack, M.V. (eds) : Tooth Enamel II, Bristol: John Wright & Sons , 1971, p 50.
6.
Johnson, N.W. : Differences in the Shape of Human Enamel Crystallites After Partial Destruction by Caries, EDTA and Various Acids, Arch Oral Biol11: 1421-1424, 1966.
7.
Cevc, P.; Schara, M.; and Ravnik, C.: Electron Paramagnetic Resonance Study of Irradiated Tooth Enamel, Radiat Res51 :581-589, 1972.
8.
Swancar, J.R. ; Scott, D.B.; and Njemirov-Skij , Z.: Studies on the Structure of Human Enamel by the Replica Method, J Dent Res49: 1025-1033, 1970.
9.
Ronnholm, E. : The Amelogenisis of Human Teeth as Revealed by Electron Microscopy: II. The Development of the Enamel Crystallites, J Ultrastruc Res6: 249-303, 1962.
10.
Baud, C.A., and Lob Joe, D.P. : Biophysical Investigations on the Mineral Phase in the Superficial Layers of Human Dental Enamel, Helv Odontol Acta10: 40-46, 1966.
11.
Ripa, L.W.; Gwinett, A.J.; and Buonocore, M.G.: The "Prismless" Outer Layer of Deciduous and Permanent Enamel, Arch Oral Biol11 : 41-48, 1966.
12.
Gwinett, A.J. : The Ultrastructure of the "Prismless" Enamel of Permanent Human Teeth, Arch Oral Biol12: 381-387, 1967.
13.
Speirs, R.L. : The Nature of Surface Enamel in Human Teeth , Calcif Tissue Res8: 1-16, 1967.
14.
Poole, D.F.G. : Physico-Chemical Studies of Enamel Structure , in Fearnhead, R.W., and Stack, M.V. (eds) : Tooth Enamel II, Bristol : John Wright & Sons1971, pp 43-46.
15.
Boyde, A.: in Wolstenholme, G.E.W., and O'Connor, M. (eds) : Caries Resistant TeethLondon: Churchill, 1965, pp 189-190.
