The impact of different viewing conditions on radiological file and working length measurement

International Endodontic Journal
I OrafiV E Rushton

Abstract

To determine the effect of different viewing conditions and observer experience upon the accuracy of file and working length measurements using analogue intra-oral radiographs. Twenty-five observers from a range of clinical backgrounds examined working length analogue periapical radiographs of 30 extracted teeth. Each participant measured both file (FL) and working length (WL) on each of the radiographs using three different viewing conditions consisting of a viewing box, a viewing box with film masking and a viewing box with film masking and x2 magnification. Statistical analysis was conducted to derive interobserver reliability by intraclass correlation coefficients, and multiple linear regression models were fitted to compare the mean differences between the joint consensus between specialists and estimated values for file length and working length for each of the three viewing conditions. Multiple regressions models were fitted and found significant differences between the use of the viewing box alone and a viewing box with masking (FL P = 0.001; WL P < 0.001) and the use of the viewing box alone and with a viewing box employing masking and magnification (FL P < 0.001; WL P = 0.002). Intraclass correlation coefficient showe...Continue Reading

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Citations

Dec 12, 2012·International Endodontic Journal·Y J A Kim, N P Chandler
Aug 14, 2012·International Endodontic Journal·O S AlothmaniN P Chandler
Mar 2, 2018·Dento Maxillo Facial Radiology·Adriana D CruzCinthya C Gomes
Jul 18, 2021·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Larissa Moreira-SouzaDeborah Queiroz Freitas

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