Word: dentines
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...have both dentin and enamel juxtaposed with each other is what was most exciting,” Bartlett said...
After about 30 weeks, researchers were able to remove several recognizable tooth crowns, each a few millimeters wide, composed of dentin, odontoblasts (cells that secrete proteins which form dentin), a pulp chamber (the innermost part of the tooth, containing nerves) and enamel...
According to John Nalbandian, research fellow in dental medicine, the study centered on changes in the degree of transparency in the dentin or solid portion of the root of the tooth. When examined beneath the electron microscope, thin sections of dentin showed an accumulation of minerals from which the age of the individual could be determined within an accuracy range of 7.9 years...
...normal human tooth consists of a very hard outer casing, enamel where it projects beyond the gum, cementum (bone) inside the gum line; a less hard inner body of dentin (ivory); and at the core a soft pulp which contains an exquisitely sensitive nerve. Practically all dentists treat the hard enamel and dentin as though they are dead substances...
Still curious about teeth although he has filled them for 40 years, Columbia University's Professor Charles Francis Bodecker proved what few other dentists suspected-that the multitude of very fine passages in the hard dentin and enamel are filled with a fluid which he named "dental lymph...