Plate 10.187 Ground Tooth
Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Human, ground nondecalcified, unstained, dark field, 6.0 x.
The striking refractility of a finely ground tooth is due to the highly ordered alignment of calcified collagenous connective tissue that forms the tooth. Both Figures A and B were photographed with cross- polarized light. The use of a 1/4 wave compensator plate was used in A to give the interference colors.
Thinly ground specimens such as this one were studied as early as 1678 by Leeuwenhoek.*
*Leeuwenhoek was a seventeenth-century Dutch biologist.
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