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J Dent Res 48(6): 1234-1242, 1969
© 1969 International and American Associations for Dental Research
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Scanning Electron Microscope Studies of EDTA-Treated Enamel

SEYMOUR HOFFMAN 1, WILLIAM S. MC EWAN 1, and CHARLES M. DREW 1

1 Naval Dental Research Institute, Naval Training Center, Great Lakes, Illinois 60088, and Michelson Laboratory, Naval Weapons Center, China Lake, California 95309

Enamel samples that were treated with EDTA for 2, 4, 7, and 24 hours respectively, were examined by a scanning electron microsope and were compared to the appearance of sound, untreated enamel. The following features were noted: a preferential decalcification pattern of EDTA on enamel prisms, characteristics of a superficial region of enamel suggestive of the "prismless" zone, differences in prisms from the striae of Retzius when compared with those in intervening areas, and enamel surface characteristics suggestive of a "coating" or cuticle resembling enamel matrix.

Submitted on February 20, 1969




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S. Lees, F. E. Barber, and R. R. Lobene
Dental Enamel: Detection of Surface Changes by Ultrasound
Science, September 25, 1970; 169(3952): 1314 - 1316.
[Abstract] [PDF]


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