Comparative evaluation of accuracy of ipex, root zx mini, and epex pro apex locators in teeth with artificially created root perforations in presence of various intracanal irrigants

Abstract

The study aimed to compare and evaluate the accuracy of iPex, Root ZX mini, and Epex Pro Electronic apex locators (EALs) in diagnosing root perforations in both dry and in different wet conditions: 5% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), and 17% Ethylenediaminetetraacetic acid (EDTA). Methods: Thirty extracted, human single rooted mandibular premolars were artificially perforated with a diameter of 1.5 mm in middle third of root. Actual canal lengths (ALs) in millimetre (mm) were evaluated for all teeth up to perforation location, and alginate mould were used to embed the teeth. After this, the electronic measurements were calculated by all EALs up to perforation site using a 20 K-file in both dry and wet canal conditions. Up to the perforation sites, the ALs were subtracted from the electronic length. Statistical analyses were done using One-way ANOVA with post hoc tukey's test for pairwise comparison and the level of significance was set at 0.05. Results: All three EAL's detected canal perforations which were clinically acceptable. There was significant difference for dry and wet conditions. Most accurate measurement were seen in dry canals for all three EALs. Root ZX mini in dry condition showed most accurate reading and there was a significant difference when compared with other groups. No significance difference was observed in iPex and Epex Pro Apex locator, and between NaOCl and CHX, CHX and EDTA. Conclusion: Perforations were determined within a clinical acceptable range of 0.03-0.05 mm by all three EALs. Root ZX mini in dry canals gave most accurate measurement. The presence of irrigating solution influenced the accuracy of all the apex locators.

Effect of Sodium Hypochlorite Concentration on Electronic Apex Locator Reliability

“…The accuracy rate of MRZX seemed to increase with the NaOCl concentration (IR1 85% and IR3 90%). This finding disagreed with other studies that concluded that in hypochlorite, the EAL measurements are significantly affected in new generation apex locators [20][21][22].…”

Kombi̇ne İrri̇gasyon Solüsyonlarinin Elektri̇ksel İletkenli̇ği̇ni̇n Karşilaştirilmasi

“…Bu çalışmaya zıt olarak, Bilaiya ve ark. 26 Root ZX mini apeks bulucunun kuru ortamda en doğru boy ölçümünü gösterdiğini rapor etmişlerdir. Başka bir çalışmada, Jenkins ve ark.…”

Effect of Orthodontic Brackets on the Accuracy of Apex Locators: A Pilot Study

“…Radiographs were taken in buccolingual and mesiodistal directions, and the teeth were examined under 16x magnification (Leica M320, Leica Microsystems, Wetzlar, Germany) to confirm that they had mature apices, single canals, and no cracks-fractures or resorptions. The sample size calculation was based on a previous research [ 13 ], and a clinically significant 0.28 difference of EAL measurement with a standard deviation of 0.12, a significance level of 0.05, and a power of 90%. This gave a minimum sample size of 30 teeth [ 13 ].…”

“…The sample size calculation was based on a previous research [ 13 ], and a clinically significant 0.28 difference of EAL measurement with a standard deviation of 0.12, a significance level of 0.05, and a power of 90%. This gave a minimum sample size of 30 teeth [ 13 ]. Forty teeth meeting the inclusion criteria were cleaned of calculus and soft tissue remnants and then stored in 0.1% thymol solution at +4°C until the experiment was started.…”