The significance of the natural form and arrangement of the dental arches of man : with a consideration of the changes which occur as a result of their artificial derangement by filing or by the extraction of teeth / by Isaac B. Davenport.

  • Davenport, Isaac Burnet.
Date:
[1887]
Catalogue details

Licence: Public Domain Mark

Credit: The significance of the natural form and arrangement of the dental arches of man : with a consideration of the changes which occur as a result of their artificial derangement by filing or by the extraction of teeth / by Isaac B. Davenport. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    If one of the lower incisors is lost, contact will again be secured by flattening of the lower arch, with the appearance of over-promi- nence of the upper front teeth ; or, the entire lower arch will, be- Fig. 12—E. Superior Arch. Lateral incisors lost. cause of loss of central support, drop inward and become narrower. This will be accompanied by a similar narrowing of the upper arch, and the forcing forward of the upper incisors and cuspids. Fig. 12—F. Inferior Arch. Left lateral incisor and right first molar lost. Arch still overcrowded ; only one space exists, and that, a filed one between the bicuspids, is held open by the upper teeth. The contraction of the lower arch in Fig. 12—F is a typical illus- tration of what may follow the extraction of a lower incisor. The upper arch, Fig. 12—E, is also contracted, no doubt partly because of the contraction of the lower arch,—while an excessive