. Elementary and dental radiography . ition. That anti- and post-operativeradiographs of such a case would be of value is apparent. 54. Tn Jill Cases of Tacial neuralgia with an Obscure Etiology. Cases of facial neuralgia with an obscure etiology, the exciting causefor which was disclosed by the -radiograph, have already been describedunder more specific headings—Figs. i5g, 164, 176. 177. 17c). 224. 2^(y247, 248, 24g, 250, 264, and others. Lntil the exciting cause is foundwhen it then receives a more specific name, any dental pain is likely tobe referred tc^ as nouraltria. 250 DENTAL RADIOGRAP
. Elementary and dental radiography . ition. That anti- and post-operativeradiographs of such a case would be of value is apparent. 54. Tn Jill Cases of Tacial neuralgia with an Obscure Etiology. Cases of facial neuralgia with an obscure etiology, the exciting causefor which was disclosed by the -radiograph, have already been describedunder more specific headings—Figs. i5g, 164, 176. 177. 17c). 224. 2^(y247, 248, 24g, 250, 264, and others. Lntil the exciting cause is foundwhen it then receives a more specific name, any dental pain is likely tobe referred tc^ as nouraltria. 250 DENTAL RADIOGRAPHY When making radiographs to learn the cause of trifacial neuralgia,it is expedient usually to make a large 8 x lo picture of the affected radiograph can then be studied and, if some lesion is discovered,another radiograph of the particular region of the lesion made on a smallfilm. The second radiograph, on the film, will be clearer than the one onthe plate, and will verify or disprove the findings in the larger Fig. 289. The dots outline the missing parts—, the anterior border of the ramus and thecoronoid process. (Radiograph by Cole and Raper.) Case: Married woman, middle age, sufferedTigs. 2^0 and 291. from pains in the region of the upper bicuspids. Thedentist could find no lesion that might be responsiblefor the trouble. A radiograph (Fig. 290) was made, but does not showthe upper teeth clearly. It does, however, show a shadow in the body ofthe mandible in the region of the lower first molar, which tooth is missingfrom the jaw. A radiograph, (Fig. 291) of the region in which theshadow appeared was made on a small film held in the mouth. The filmwas not placed in exactly the proper position and, as a result of this mis-take, pictures only a part of the lesion. It shows the crown of a super-numerary lower bicuspid with three supernumerary bodies (denticles)above it. Though the lesion in the lower jaw was not at the location inwhich pain occurred,
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