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Lectures on operative dental surgery and therapeutics . that tissue being so nearly equivalent to theincrease, that physiological change goes on almost imper-ceptibly. The opinions given by various authors as to the dan-gers of exostosis, and as to the pain caused, conflict. Inthe earlier stages it seems to occasion little, or no, incon-venience; but an instance is given where a patient had suffered fourteen years with fistulous openings in the leftcheek, osteo-sarcoma having been induced by enlarge-ment of the fang of the dens sapientia, which occasionedthe loss of a great part of the maxilla

Lectures on operative dental surgery and therapeutics . that tissue being so nearly equivalent to theincrease, that physiological change goes on almost imper-ceptibly. The opinions given by various authors as to the dan-gers of exostosis, and as to the pain caused, conflict. Inthe earlier stages it seems to occasion little, or no, incon-venience; but an instance is given where a patient had suffered fourteen years with fistulous openings in the leftcheek, osteo-sarcoma having been induced by enlarge-ment of the fang of the dens sapientia, which occasionedthe loss of a great part of the maxilla Stock Photo

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Lectures on operative dental surgery and therapeutics . that tissue being so nearly equivalent to theincrease, that physiological change goes on almost imper-ceptibly. The opinions given by various authors as to the dan-gers of exostosis, and as to the pain caused, conflict. Inthe earlier stages it seems to occasion little, or no, incon-venience; but an instance is given where a patient had suffered fourteen years with fistulous openings in the leftcheek, osteo-sarcoma having been induced by enlarge-ment of the fang of the dens sapientia, which occasionedthe loss of a great part of the maxilla. The roots of several teeth are sometimes united, and socomplicate extraction that a large portion of the alveolusaccompanies the tooth. Laceration of the gum is perhapsmore to be dreaded than loss of the process; for, unlessfracture be so extensive as to endanger the firmness ofadjacent teeth, its removal may be considered as onlyanticipating the absorption which naturally follows ex-traction. A case of alveolar fracture is exhibited in figs. 74-5, .

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RM2AM3XXG–Lectures on operative dental surgery and therapeutics . Buccal view.Fig. 74. Linj^ual view, PlG. 75. (third molar), periosteal excitation having, by adhesiveinflammation, developed a condition commonly calledanchylosis ; yet there is wanting an authenticated case oftrne anchylosis of cementum and socket. An example 180

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RM2AM3YFE–Lectures on operative dental surgery and therapeutics . or remote, also as tomedicinal treatment employed, mercurial or otherwise,—as these have a marked tendency to mislead in obscureforms of disease. Failing, however, to obtain satisfactoryinformation, the trouble may be surmised as originatingfrom one of two causes, viz., intrinsic calcification of thepulp, or an osseous formation on the root, ^ calledexostosis. The teeth are sometimes affected by the mechanicalirritation of calcifying bodies within the pulp— endos-tosis—and the calcification of the periosteum—exos-tosis,—conditions which f

RM2AM49D2–Lectures on operative dental surgery and therapeutics . Fig. 9. There is, however, no arbitrary or stereotyped rule bywhich you can be governed in the use of the hand mallet;and the above illustration is only intended to convey anidea of the light and easy manner of holding, as an absenceof all muscular rigidity of the hand is required while usingit; further than this, the execution becomes simply a ques-tion of time and practice. With this, as with all other in-struments used in operating about the mouth, the studyshould be to attain a delicacy of touch that may beperceptible to your patients

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RM2AM44YD–Lectures on operative dental surgery and therapeutics . ts of soft wood, shaped in such amanner that when fixed in the vice, and the jaws arefirmly closed (see Fig. 33), a generally diffused or evenpressure may be obtained over the whole surface of thetooth, and the membrane of the root protected againstaccident. The roots should then be cleansed of all extraneousmatter, and filled with oxy-chloride of zinc, after which the 115 tooth may be removed from the vice, and where de-nudation has taken place, the root excised. Then, witha flexible drill, the canal should be formed as nearly aspossible

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