. Elementary and dental radiography / by Howard Riley Raper . w over them,that it is not infrequently impossible to distinguish the different roots. 392 APPENDIX 38. To Depend on Intra-Oral Radiographs Alone, Especiallyin Cases of Neuralgia, Facial Fistula, Impacted Third Molars andAbscess of the Lower Bicuspids. Case: Facial fistula. A radiograph, made on a small film, showedvery small spots indicating a slight infection at the apices of the roots ofa lower second molar. Continued treatment of the tooth did not benefitthe case. It was decided that the molar should be extracted, but beforedoin
. Elementary and dental radiography / by Howard Riley Raper . w over them,that it is not infrequently impossible to distinguish the different roots. 392 APPENDIX 38. To Depend on Intra-Oral Radiographs Alone, Especiallyin Cases of Neuralgia, Facial Fistula, Impacted Third Molars andAbscess of the Lower Bicuspids. Case: Facial fistula. A radiograph, made on a small film, showedvery small spots indicating a slight infection at the apices of the roots ofa lower second molar. Continued treatment of the tooth did not benefitthe case. It was decided that the molar should be extracted, but beforedoing this another radiograph was made; this time on a large plate. Thesecond radiograph, made on the plate, revealed the presence of an ab-scess at the apex of the lower first bscuspid, which tooth had no cariouscavity in it. This tooth, the lower, first bicuspid, was opened and treatedand the case recovered promptly. The large plate should have been madein the first place, which would have enabled the operator to get at the seatof the infection without Fig. 445. Unerupted, malposed, upper and lower third molars. Figure 444 is the radiograph made of a case of neuralgia of manyyears standing. The shadow in the anterior region of Fig. 444 is an un- READING RADIOGRAPHS 393 erupted lower cuspid. Xote also the very small abscess of the lowerthird molar. The abscess is no larger than an unusually large periapicalspace, but observe the filling in the crown of the tooth enters the pulpchamber and there is no canal filling in the canals. Had a small film beenused and the condition of the lower third molar disclosed it is highly im-probable that the examination would have been carried further and so thereal cause of the trouble would not have been located. I say the realcause of the trouble would not have been located, because removal of themalposed tooth, without treatment of the third molar, effected a cure. When making radiographs for impacted third molars, there will beless dist
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