Notes on dental practice / by Henry C. Quinby.

  • Quinby, Henry C.
Date:
1884
Catalogue details

Licence: Public Domain Mark

Credit: Notes on dental practice / by Henry C. Quinby. Source: Wellcome Collection.

Provider: This material has been provided by the University of Toronto, Harry A Abbott Dentistry Library, through the Medical Heritage Library. The original may be consulted at the Harry A Abbott Dentistry Library, University of Toronto.

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    colour, form, and suitableness in every respect should be studied, in order to avoid the very un-ar£-ificial appearance that neglect of any one of these points would give the finished work; for art, in these cases at least, is imitation of nature, and not an attempt to improve upon it. The tooth being soldered to the plate, we may smooth and polish the lingual surface, thus completing the laboratory work, Fig. 82. We are now ready to try the tooth in the mouth, and see if it is satisfactory in every respect: form, position, colour, if the bite is right, and if the tooth fits so that the joint will not show, Fig. 83. If in all Figure 82.—Showing tooth ready Figure 83.—Showing tooth in for rising. position. these points the work is satisfactory, it only remains to fix the tooth in the root. We first shape a cavity in the cervical end of the root of sufficient size and depth to ensure perman- ence for a gutta-percha filling. The twentieth part of an inch is deep enough, and superficially it should be at least two-thirds of the surface of the end of the root. We undercut all around with an inverted cone-shaped drill attached to the engine; and with a strong thick-bladed knife we then barb