. Elementary and dental radiography / by Howard Riley Raper . Fig. 390. The mental foramen at the apex of the lower second bicuspid, having the appear-ance of abscess cavity. 364 APPENDIX Plates are better than films to differentiate between the mental fora-men and an abscess cavity because the radiographic shadows on them areless likely to be distorted and because they take in a greater field forobservation. In a plate one can see both the mental foramen and theabscess cavity if one exists. If a spot having the appearance of an abscesscavity is observed at the apex of a lower bicuspid and the


. Elementary and dental radiography / by Howard Riley Raper . Fig. 390. The mental foramen at the apex of the lower second bicuspid, having the appear-ance of abscess cavity. 364 APPENDIX Plates are better than films to differentiate between the mental fora-men and an abscess cavity because the radiographic shadows on them areless likely to be distorted and because they take in a greater field forobservation. In a plate one can see both the mental foramen and theabscess cavity if one exists. If a spot having the appearance of an abscesscavity is observed at the apex of a lower bicuspid and the mental foramen.


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