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A dental radiographic technique that requires placement of the film parallel to the teeth and positioning of the central ray perpendicular to the teeth. The orientation of the film, teeth, and central ray produces a radiograph with minimal geometric distortion. Synonym: long-cone technique; right-angle technique
See also: technique
par·al·le·ling tec·hnique(pară-lel-ing tek-nēk)
Radiographic modality in which the incident beam is perpendicular to the long axis of the tooth and the plane of the film.