Evaluation and Comparison of the Diagnostic Accuracy of Indirect Digital Radiography (PSP) and Conventional Radiography in Periapical Lesions

Document Type : Original Article

Authors

1 Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

2 Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

3 Dentist.

4 Department of Endodontics, Faculty of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Abstract

Background and Objectives: The lesion in periapical area is a clinical problem in with some difficulties in its diagnosis. Since the diagnosis of the periapical lesion is based on the observation of radiolucency in the teeth periapical area, the objective of this study was to assess the diagnostic accuracy of indirect digital radiography (PSP) and the conventional radiography in diagnosis of periapical lesion in invitro condition.
Subjects and Methods: In this experimental-laboratoryresearch, 60 synthetic lesions (0.25, 0.5, 1mm) were formed under the apex of teeth by means of single-root premolar teeth replaced in the dried mandible bone of sheep. These lesions were imaged by two methods of digital and conventional radiography. Two maxillofacial radiologists examined the presence or absence of lesions in PSP radiographs and conventional processing in each periapical area.
Results: The average accuracy of observation in conventional radiography for 0.25, 0.5 and 1 mm was 30, 46 and 85 % respectively, which was increased respectively to 46.7, 63.5 and 93.3 % for PSP radiographs. The conventional radiography had the specificity of 85 % in comparison with 66% for digital radiography.
Conclusion: It seems that, particularly for small lesions, PSP has a higher diagnostic sensitivity in diagnosis of periapical lesions in comparison with conventional radiography.
 

Keywords

References

-White SC,PharoahMJ,eds.OralRadiology:principle and interpretation. 6thed .St.Louis :Mosby Elsevier ;2009.p.326.
2-Nicopoulou-Karayianni K, Bragger U, Patrikiou A, Stassinakis A, Lang NP: Image processing for enhanced observer agreement in the evaluation of periapical bone changes. Int Endod 2002;35:615-622.
3-Christgau M, Hiller K, Schmalz G, Kolbeck C, Wenzel A: Quantitative digital subtraction radiography for the determination of small changes in bone thickness. Oral Surg Oral Med Oral Pathol 1998;85:462-472.
4-Southard KA, Southard TE: Detection of simulated osteoporosis in dog alvelolar bone with the use of digital subtraction. Oral Surg Oral Med Oral Pathol 1994;77:412-418.
5-Lindh C, Petersson A, Klinge B, Nilsson M: Trabecular bone Volume and bone mineral density in the mandible. Dentomaxillofac Radiol 1997;26:101-106.
6-Wang A, Monsoar PA, Moule AJ, Basford KE. A comparison of Kodak ultraspeed and Ektaspeed plus dental x-ray films for detection of dental caries. Aust Dent J 2002; 47(1): 27-29.
7-Razmus TF, Williamson GF. Current oral and maxillofacial imaging.1st Ed Philadelphia:W.C SANDERS. 1996; 6-184.
8-Whites SC, Pharoah MJ. Oral radiology principle and interpretation. 4th Ed. St Louis: 2000. 223-227.
9-Ruddle CJ, Cohen S, Burns RC. Pathways of the pulp. 8th Ed. Philadelphia: St Louis; 2002.115-128.
10-Seltzer S: Endodontology. 2nd Ed. Philadelphia: Lea & Febiger;1998.149-156.
11-Wenzel A, Hintze H. Perception of image quality in direct digital radiography after application of various image treatment filters for detectability of dental disease. Dentomaxillofac Radiol 1993; 22: 131-134.
12-Barbat J, Messer HH. Detectability of artificial periapical lesions using direct digital and conventional radiography. J Endod 1998; 24: 837-842.
13-Kullendorff B, Petersson K, Rohlin M. Direct digital radiography for the detection of periapical bone lesions: a clinical study. Endod Dent Traumatol 1997; 13: 183-189.
14-M. Mehdizadeh, M. Karami, H. Zamani. Comparative Study of Conventional and Digital Radiography in Diagnosis of Periapical Lesions in Dry Human Mandible. J Dent Shiraz Univ Sci. 2008; 9 (2): 163-169.
15-Tabrizizadeh M, Abrisham S M, Yazdani A. The accuracy comparison of direct digital radiography (DDR) and conventional radiography in detecting chemically created lesions. Beheshti  Univ Dent J 2011; 29 (1): 55-66.
16-Lazar RH,YounisRT,ParveyLS.Comparision of plain radiographs,coronal CT and interoperative finding in children with choronicsinusitis.Otolaryngol Head Neck Surg.1992 Jul;107(1):29-34.
 
Jundishapur Scientific Medical Journal
Volume 14, Issue 3 - Serial Number 96
May and June 2015
Pages 333-341

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History

  • Receive Date: 01 February 2015
  • Revise Date: 12 February 2015
  • Accept Date: 16 March 2015

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