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Abstract:
This article describes the assembly and clinical use of a newer type of XCP dental X-ray film positioning device, called the XCP-ORA. The previous version of the XCP consists of three separate devices for taking anterior, posterior, and bitewing radiographs. The XCP-ORA dental X-ray film holder combines all three of these dental X-ray functions into one device, in contrast to the previous generation of XCP holders. The large paralleling ring of the device contains three color-coded square-shaped holes that attach to a metal rod. This single metal rod with two right angle bends contains two sets of corresponding color-coded prongs that attach the anterior, posterior and bitewing X-ray film holders. One set of prongs consists of two red prongs that correspond to the insertion points of the bitewing X-ray film holder. The other set of prongs consists of one prong that is yellow colored, and another prong that is blue colored. Both of these prongs fit into the insertion holes of either the yellow (posterior) or the blue (anterior) film holders. The multi-function XCP-ORA device reduces the total number of XCP parts that are needed to take intraoral dental radiographs. Fewer parts make the device less confusing to assemble and reduce the number of steps that are needed to prepare the XCP-ORA parts for autoclaving.
The XCP-ORA is a type of dental X-ray film positioning device. XCP-ORA stands for "extension Cone Paralleling - One Ring and Arm." This acronym refers to the device's capability to enable an assistant to parallel the plane of the difficult-to-see intra-oraUy located dental X-ray film with the cross-section of the X-ray beam as the beam emerges from the extension (or collimating) tube that extends from the X-ray machine head. It also refers to the ability to use this one device to perform all three functions of taking anterior periapical, posterior periapical and bitewing radiographs. This article describes the clinical techniques of assembling the XCP-ORA device and of positioning it intra-orally for taking dental radiographs. The reader should, however, consult other sources for a complete overview of how to produce a full mouth series of radiographs or how to take oral and maxülo-facial radiographs in general.1-3
The XCP-ORA device contains a film holder that provides a stiff backing...