. Elementary and dental radiography / by Howard Riley Raper . the patient and can even destroy life itself. With the aid of the radiograph these foci of infection are not only 496 APPENDIX revealed to us almost unfailingly, but it reveals to us the cause of theinfection, and embarrassing as it is to admit it, the dental profession mustacknowledge it is often due to faulty and unjudicious operations. If then, the above conditions do exist, and are caused to exist byfaulty technic or impossible perfection in operation, the logical procedureis to do the operation in a manner by which the faulty o


. Elementary and dental radiography / by Howard Riley Raper . the patient and can even destroy life itself. With the aid of the radiograph these foci of infection are not only 496 APPENDIX revealed to us almost unfailingly, but it reveals to us the cause of theinfection, and embarrassing as it is to admit it, the dental profession mustacknowledge it is often due to faulty and unjudicious operations. If then, the above conditions do exist, and are caused to exist byfaulty technic or impossible perfection in operation, the logical procedureis to do the operation in a manner by which the faulty or impossiblefeature is eliminated. When a shell crown is indicated in the construction of a bridge, in-stead of pulp devitalization in order to prepare the natural tooth crownin such a manner that the crown band may be adjusted as accurately aspossible around the cervix of the tooth, which is practically impossible todo accurately enough to prevent subsequent irritation of the gingivae. Ihave adopted the following technic for crown construction. This method. Fig. 513.


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