. Elementary and dental radiography / by Howard Riley Raper . Fig. Fig. 514. not only eliminates pulp removal with is dangerous sequalae but leavesthe gum tissue in its natural normal condition, instead of producing acondition conductive to disease. Having noted the results of this form of crown construction for anumber of years, I use it exclusively where the shell crown is indicatedfor bridge abutments, not only on molars but bicuspids, also whereesthetic considerations do not contraindicate its use. The technic beingsimilar in either case, I will illustrate it in the construction of t
. Elementary and dental radiography / by Howard Riley Raper . Fig. Fig. 514. not only eliminates pulp removal with is dangerous sequalae but leavesthe gum tissue in its natural normal condition, instead of producing acondition conductive to disease. Having noted the results of this form of crown construction for anumber of years, I use it exclusively where the shell crown is indicatedfor bridge abutments, not only on molars but bicuspids, also whereesthetic considerations do not contraindicate its use. The technic beingsimilar in either case, I will illustrate it in the construction of the molarcrown only. The normal form of a molar or bicuspid naturally makes the entirecircumference convex. Because of this convexity, the diameter differs CANAL SURGERY AND ORAL INFECTION 497 from the occlusal surface to the cervix (Fig. 513). In order to retain ananatomical form of the crown when completed, and to have it sufficientlyheavy for rigidity, it is necessary to grind the natural tooth to a point
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