. Elementary and dental radiography . zed pulp Fig. 184 the wire reaching the point of sensitiveness fails to reach theapex, proving that the sensitiveness is caused by an unremoved, unde-vitalized remnant of pulp. Let us stop to consider how this question of whether or not we arepenetrating the apex is decided when radiographs are not used. We pumpphenol or some other obtundent into the canal, working our broach farther 184 DENTAL RADIOGRAPHY and farther until we strike the end of the canal ending in a blind alley, orgo so far into the apical tissues we know that no tooth root could
. Elementary and dental radiography . zed pulp Fig. 184 the wire reaching the point of sensitiveness fails to reach theapex, proving that the sensitiveness is caused by an unremoved, unde-vitalized remnant of pulp. Let us stop to consider how this question of whether or not we arepenetrating the apex is decided when radiographs are not used. We pumpphenol or some other obtundent into the canal, working our broach farther 184 DENTAL RADIOGRAPHY and farther until we strike the end of the canal ending in a blind alley, orgo so far into the apical tissues we know that no tooth root could be aslong as the distance we are penetrating. The use of the radiograph savesall this guesswork, obviates the necessity of causing considerable pain andis a time-saver. 19. Tn Cases of Chronic Pericementitis (Came tootb). A putrescent pulp is the most common cause for pericementitis, eitherchronic or acute. Therefore, when the affected tooth is crowned or filled,as it almost always is in chronic pericementitis, radiographs should be.
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