File:Dental cosmos (1889) (14595327677).jpg

Identifier: dentalcosmos3118whit (find matches)
Title: Dental cosmos
Year: 1889 (1880s)
Authors: White, J. D McQuillen, J. H. (John Hugh), 1826-1879 Ziegler, George Jacob, b. 1821 White, James William, 1826-1891 Kirk, Edward C. (Edward Cameron), 1856-1933 Anthony, Lovick Pierce, 1877-
Subjects: Dentistry
Publisher: Philadelphia : S. S. White Dental Manufacturing Co
Contributing Library: The College of Physicians of Philadelphia Historical Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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g. A is the superior maxilla. Section was made through the•center of the central incisor socket and through the anterior palatal-canal. A portion of the bone has been broken away so as to more 218 THE DENTAL COSMOS. thoroughly expose the antrum. Examination of the figure willdemonstrate the value of the following suggestions: The labial plate of the alveolus is very thin in the normal socketsof the central incisors. It should be so made in the drilled socket,care being taken to avoid cutting through to the gum, however. Thedirection of the palatal canal is an angle a trifle greater than that ofthe socket, and yet the slant of the adjacent teeth may be taken as aguide. The chances of entering this canal are conspicuously presentin two conditions, first where the teeth originally were prominentlyforward, and it is desired to set the new members less so. Thetemptation here would be to bur the socket backward towards thepalate, and this would be towards the canal. In this operation the:
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end may be safely attained if in reaming backward care be taken to-work towards the lateral incisors and away from thejnedian line.It is better to set the teeth with a slight tip or with a triflingintervening space than to risk rupturing the vessels in this canal.The other condition is where the space between the laterals is widerthan can be filled by two teeth. The temptation here, for appear-ance sake, is to set the centrals close together, leaving spaces be-tween them and the laterals rather than to have all the spacebetween the centrals. This in many instances would, however, berisky. Such a case was presented to me for operation at a clinic,and I was criticised for setting the teeth as I thought safest, with a- PERISCOPE. 219 space at the median line. If, in such a case, it be noticed that at the median line a well-marked ridge of the gum is continuous withthe fraenum extending over into the roof of the mouth, there becom-ing the central line of the rugse, it may be taken as cert

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