. Elementary and dental radiography / by Howard Riley Raper . nd abscess of the lower bicuspids. (39) To fail to use areading-glass when studying negatives and so avail ones self of the greatassistance rendered by the practice. (40) To fail to use the electric testfor vitality of pulps in connection with radiographic examinations. (41)To make radiographs of every tooth in the mouth in all cases where theteeth are being examined to locate foci of infection. We will now proceed with a short consideration of each of the fore-going mistakes: 1. To Mistake the Mental Foramen for an Abscess Cavity a
. Elementary and dental radiography / by Howard Riley Raper . nd abscess of the lower bicuspids. (39) To fail to use areading-glass when studying negatives and so avail ones self of the greatassistance rendered by the practice. (40) To fail to use the electric testfor vitality of pulps in connection with radiographic examinations. (41)To make radiographs of every tooth in the mouth in all cases where theteeth are being examined to locate foci of infection. We will now proceed with a short consideration of each of the fore-going mistakes: 1. To Mistake the Mental Foramen for an Abscess Cavity atApex of a Lower Bicuspid. Figure 392 shows the mental foramen. The location of this foramenvaries greatly in different individuals. It may occur in such a position ina radiograph as to have the appearance of an abscess cavity at the apexof the second or first, lower bicuspid (Fig. 393). When the radiographis made on a small film held in the mouth and the rays have been directedfrom below upward this is especially likely to occur. READING RADIOGRAPHS &3. Fig. oJL*. The mental foramen below and between the apices of the roots of the lower bicus-pids. (Radiograph by Cole and Beeler, Indianapolis.)
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