On the structure, economy, and pathology of the human teeth, : with careful instructions for their preservation and culture, and concise descriptions of the best modes of surgical treatment, equally adapted to the uses of the medical practitioner, the student in medicine, and of the public. / By William Lintott.

  • Lintott, William.
Date:
1841
Catalogue details

Licence: Public Domain Mark

Credit: On the structure, economy, and pathology of the human teeth, : with careful instructions for their preservation and culture, and concise descriptions of the best modes of surgical treatment, equally adapted to the uses of the medical practitioner, the student in medicine, and of the public. / By William Lintott. Source: Wellcome Collection.

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    the groove; the pointed processes which overhang the mouth of the follicle, are the opercula in the course of formation; the space above the opercula is the future se- condary dental groove, and the square-shaped processes nearest to the figure 5, and overhanging this space, are the approximating edges of the gum. The follicular stage of the formation of the tooth is now complete. Fig. 6.—The papilla acquiring the configuration of the pulp of an incisor tooth. The opercula- have be- come more pointed, and are approaching nearer to each other. The space above them, the future secondary groove, is larger, and the edges of the gum are yet se- parated. The mucous membrane lining the mouth and gums, is still continuous with the follicle of the tooth. PLATE II. Fig. 7.—The opercula have advanced so far as to have become united upon the middle line ; by this union the follicle is converted into a “ sac.” The papilla has become a “ pulp,” and presents the exact form of the tooth which it precedes. The secondary dental groove is now complete. The front lobe of the gum has de- scended upon the anterior operculum, so as to close this half of the secondary dental grove. The posterior lobe of the gum is still raised over the portion of the secondary dental groove, which remains permanently. The latter presents the form of a follicle, being lined by the mucous membrane, which is still continuous with that of the mouth. Fig. 8.—The lobes of the gum have now closed, the