The effect of XCP and Snap-A-Ray film holders in reduction of technical errors in parallel periapical technique

Document Type : original article

Authors

1 Assistant Professor, Dept of Oral & Maxillofacial Radiology, School of Dentistry, Isfahan university of Medical Sciences, Isfahan, Iran.

2 Dentist

Abstract

Introduction:
Dental radiography has a major role in diagnosis of oral and dental diseases. Different technical methods are used to obtain high quality image in radiography and reduce X-Ray exposure in the patients. In this research modified techniques for periapical intraoral radiography with parallel technique by using XCP and Snap-A-Ray film holders had been used to overcome technical errors.
Materials and Methods:
With the use of XCP and Snap-A-Ray film holders, 96 parallel periapical intraoral radiographs were taken from 96 patients who were reffered to the radiology department of Isfahan dental school  with the same condition of operation such as voltage (70 kvp), Amp(8 mA). The type of radiography films was E speed.
From 96 radiographs, 6 of them were  included in  the  pilot study and 90 radiographs were processed automatically (processor) in the same condition   and  after    observation   by  the radiologist,   the  reports   were written in the   checklist
Results:
Evaluation of intraoral radiographs  obtained by use of Snap-A-Ray film holder, showed technical errors of
cone cutting (26.7%), displacement (15.6%), foreshortening (13.3%), elongation (8.9%) and overlapping (2.2%) whereas none of these technical errors were observed  in intraoral radiographs  obtained by use of XCP film holders.
Discussion  & Conclusion:
Totally the XCP film holders  are  easier  to use and image quality of radiographs are better than  those of  Snap-A-Ray film holders.  Regarding  to the absence  of  technical   errors and better  image quality  using  XCP  film  holders,  these  film holders  are  preferrred   which  prevents repetition of radiography and  reduces patient  x- ray  exposure dosage.

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