Dr Muhammad Ammar Iftikhar ,Dr Hassan
Aim: The aim of the study was to compare digital radiography with the electronic Root ZX (EAL) apical apparatus as a conventional method of measuring the length of the root canal in the primary anterior teeth and to clinically assess the influence of the pulp condition (vital pulp or necrotic) on Root ZX EAL accuracy. Place and Duration: The study was held in the Punjab Dental Hospital, Lahore for one-year duration from January 2019 to January 2020. Methods: The study included 40 upper anterior primary teeth indicated for pulpectomy in 19 healthy pediatric patients. Electronic canal assessment was taken with the Root ZX electronic tip finder with the file in place and x-rays were taken to check the correct working length. Radiographic measurements were obtained by measuring the root canal length with a digital ruler in the Romexis software (Planmeca, 4.5.2.R). Root canals were cleaned, watered, dried, filled and teeth rebuilt. Results and Conclusion: Given that the clinically acceptable error tolerance was ± 0.5 mm, 48.6% (17/35) of the channels showed acceptable differences between the two measurements. The state of the dough had no significant effect (P> 0.05) on the accuracy of the root ZX (EAL) measurement. Root ZX (EAL) can be used as an aid in taking radiographs during root canal treatment of milk teeth. Key words: Primary teeth, pulp treatment, vital teeth, root apex Locator, necrotic teeth.