. Elementary and dental radiography / by Howard Riley Raper . Fig. 452A. From the time of the first acute attack, for four years, this tremendous dentalabscess had caused the patient no pain whatsoever, in this plate, yet from a careful study of it, a diagnosis of antral empyemawas mad . ii;e verity of which was proved by operation. Figure .452 was of a case of suspected antral or frontal sinus em-pyema. The frontal sinuses show clear, and the antra are clear save for theshadow cast over them by the petrous portion of the temporal bone. RE. WING R. IDIOGR. IPHS 405 (Figure 452 was made from a
. Elementary and dental radiography / by Howard Riley Raper . Fig. 452A. From the time of the first acute attack, for four years, this tremendous dentalabscess had caused the patient no pain whatsoever, in this plate, yet from a careful study of it, a diagnosis of antral empyemawas mad . ii;e verity of which was proved by operation. Figure .452 was of a case of suspected antral or frontal sinus em-pyema. The frontal sinuses show clear, and the antra are clear save for theshadow cast over them by the petrous portion of the temporal bone. RE. WING R. IDIOGR. IPHS 405 (Figure 452 was made from a pose with the head against the plate asin Figure 111 but with the X-rays directed diagonally forward from apoint just back of the base of the occipital bone. Such a pose gives avery hazy view of the anterior teeth, a good view of the frontal sinusesand a view of the antra obscured by the shadow of the petrous portion ofthe temporal bone.) Observe a small spot at the apex of the lateral incisoron the right. A small intra-oral radiograph was made and shows an
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