J. Orthod.
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British Journal of Orthodontics, Vol 16, 79-83, Copyright © 1989 by British Orthodontic Society

ARTICLES

Vertical parallax radiology to localize an object in the anterior part of the maxilla

PJ Southall and JF Gravely
Perth Dental Hospital, Western Australia.

An evaluation has been made of four techniques of assessing, from radiographs, the position of unerupted maxillary teeth, using radio- opaque markers placed in various positions on the maxilla of a dried skull. Application of the parallax principle in a vertical plane, for which only two radiographs are needed, was found to produce as many correct conclusions as other methods.




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Copyright © 1989 British Orthodontic Society.