| 单词 |
panographic |
| 释义 |
panographic, a. Dentistry.|pænəʊˈgræfɪk|
Also panagraphic.
[f. panoramic a. + radiographic a.]
Of, pertaining to, or designating radiography of several teeth and the adjacent bones in a single exposure by means of a small X-ray source placed inside the mouth and a film outside it.
1952Jrnl. Dental Res. XXXI. 165 In the evaluation of the panographic technique it is well to remember that it must be judged as an adjunct to conventional radiography and not as a substitute for it. 1963Dental Radiogr. & Photogr. XXXVI. 81/2 (caption) Panagraphic equipment and technic for the maxilla and the mandible. 1967Amer. Jrnl. Roentgenology CI. 989/2 (caption) Panographic study reveals a large expansile cystic lesion in the right mandible, proven to be a dental cyst.
Hence ˈpanograph, (a) a panographic radiograph; (b) an X-ray machine for use in panography; paˈnography, panographic radiography.
1961Oral Surg., Oral Med., Oral Path. XIV. 1178 (heading) Panagraphy. Ibid. 1179 The x-ray tube used in the Panagraph is the Swiss Panoramix tube. 1963Blackman & Poyton Man. Dental & Oral Radiogr. xvi. 160 (caption) Panagraph of lower jaw showing unerupted and supernumerary teeth. 1967Amer. Jrnl. Roentgenology CI. 988/1 Panography is a radiographic technique recently described by Blackman for use predominantly in dentistry. 1969Wuehrmann & Manson-Hing Dental Radiol. (ed. 2) viii. 161 Panagraphy suggests a technic to study structures in a panoramic fashion. The Panagraph or Panoramix is an x-ray machine utilizing an intraoral source of radiation to expose film placed extra-orally. Ibid. 163 The main advantages of the Panagraph appear to be that it is relatively portable, is easy to operate, and may be used effectively for mass dental radiography. |
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