The American text-book of operative dentistry / In contributions of eminent authorities. Ed. by Edward C. Kirk.

  • Edward Cameron Kirk
Date:
1900
Catalogue details

Licence: Public Domain Mark

Credit: The American text-book of operative dentistry / In contributions of eminent authorities. Ed. by Edward C. Kirk. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    considerable portion of the enamel has been formed; they appear to have been lost in the connective tissne which is evervwhere above them. The origin of the enaind organs of tlie permanent teeth may be de- Frc. 4S. v\^jMwaji) ,.J Section of incisor of rat ( ■' 175): a, blood-vessels with eorpuseles in situ; h, Ijraiieh of same de- scending to supply capillary loops about secreting papilla; c, ameloblasts. (Dr. J. LeoQ Williams* specimen.) scribed in general as follows : From the neck of the enamel organs of the twenty deciduous teeth, midway between the stratum Malpighii and the temporary enamel organ, growths in the form of buds are being Fig. 49. Section of incisor of rat (X 80): a, capillary loops torn out of secreting papillae; b, .secreting papillpe after removal of capillary loops; c, ameloblasts; d, enamel; e, dentin. (Dr. J. Leou Williams specimen.) formed, increasing in length, and these result in the formation of the enamel organs of the ])ermanent teeth, their grow^th taking place on the lingual surface of the temporary teeth. Soon after this, tlie tern-