File:The Dental cosmos (1890) (14779104492).jpg

Identifier: dentalcosmos3218whit (find matches)
Title: The Dental cosmos
Year: 1890 (1890s)
Authors: White, J. D McQuillen, J. H. (John Hugh), 1826-1879 Ziegler, George Jacob, 1821-1895 White, James William, 1826-1891 Kirk, Edward C. (Edward Cameron), 1856-1933 Anthony, L. Pierce (Lovick Pierce), b. 1877
Subjects: Dentistry Dentistry
Publisher: Philadelphia, S. S. White Dental Manufacturing Co
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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wn. The normal taper ofthe root-canal is thus seen to be an important factor in the describedoperation, and the fact is an additional reason for the avoidance of ROOT-CANAL FILLING. 769 drilling or reaming the canal at the outset ; either may, however, ifdesirable, be safely done after the sealing of the foramen with tin. The series of plugger-probes consists of nine, and they are gradedin groups of three. The first numbers, 1, 2, 3, are of equal delicacynear their ends, but differ in length of blades to afford more or lessstiffness according as the narrow canal may be short or long. Num-bers 4, 5, 6, are likewise proportioned, but are not so slender.Numbers 7, 8, 9, are similarly graded, and of slightly increaseddimensions in the blades, which in each number are cut nearly squareoff to enable them to carry and pack the shreds of tin foil. To meetcases requiring shorter and thicker plugger-points, the operator canreadily make such out of suitable steel wire. Fig. 13. Fig. 14. Fig. 16.
Text Appearing After Image:
The chuck will prove otherwise useful, as, for example, in gaugingthe depth of a post-hole in a root, Fig. 16, which shows beside theroot a piece of wire that when fixed in the chuck will determine theproper length of the crown post. It will also hold firmly the smallshanks of the well-known barbed bristles for removing devitalizedpulps. Dr. C. F. Allan originally suggested the idea of an iridio-platinum canal-dresser soldered to a suitable holder, but that hereinshown, magnified, in Fig. 10, is adapted to be adjusted and gaugedby means of the firmly-gripping chuck. An experience of more than a quarter of a century in the successfulpractice of the positive method of filling root-canals with tin foil totheir very apices measurably certifies the practicability of the process,and is sufficient justification for this presentation of an improvedmode of procedure. 77o THE DENTAL COSMOS. Dental Analytics. BY CHAS. MAYR, A.M., B.S., SPRINGFIELD, MASS. The number of chemicals used in the ordin

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