Accuracy of three different apex locators considering different meter readings: an ex vivo study (CROSBI ID 557457)
Prilog sa skupa u časopisu | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Jukić Krmek, Silvana ; Ljubičić, Ana ; Prpić Mehičić, Goranka ; Simeon, Paris ; Švegar, Domagoj ; Stare, Zoran
engleski
Accuracy of three different apex locators considering different meter readings: an ex vivo study
Aim To compare the accuracy of three different apex locators (EAL) considering two different meter readings. Methodology EALs used in this study were ES-02 and ES-03 (Artronic, Zagreb, Croatia) and ProPex (Dentsply Maillefer, Ballaigues, Switzerland). Root-canal lengths of 46 extracted human onerooted teeth were determined visually with a size 15 file (actual length-AL). The teeth and labial connector were embedded in alginate and two sets of measurements were performed for each meter readings: ‘0.5 bar’ and ‘Apex’ reading (0.0). The differences between the measured and control values were statistically tested by using the analysis of the direction of discrepancies, nonparametric Friedman, and Wilcoxon tests, as a post hoc. Results The mean difference between AL and measured values at meterreading‘Apex’was0.10 mmwithPropex, 0.31 mmwithES-02 and 0.71 mm with ES-03. At meter reading ‘0.5 bar’ that difference was 0.28 mmwith ProPex, 0.41 mmwith ES-02 and 0.87 mmwith ES-03. Wilcoxon test showed that at meter reading ‘Apex’ ProPex is more accurate than ES-02 (Z = 4.23 ; df = 2 ; P < 0.001) and ES-03 (Z = 5.08 ; df = 2 ; P < 0.001). ES-02 is more accurate than ES-03 (Z = 3.78 ; df = 2 ; P < 0.001). At meter reading ‘0.5 bar’ ES-02 and ProPex are equally accurate (Z = 1.82 ; df = 2 ; P > 0.05), and ES-03 is less accurate than other two AELs (Z = 5.02 ; df = 2 ; P < 0.001). Generally, Wilcoxon test showed that mean difference between meter readings ‘Apex’ and the actual length (M = 0.37 mm) were lower than the mean difference between the measurement ‘0.5 bar’ and the actual length (M = 0.52 mm) (Z = 3.94 ; P < 0.001). Conclusions ProPex was the more accurate EAL at meter reading ‘Apex’, compared with ES-02 and lastly ES-03. At meter reading ‘0.5 bar’ ES-02 and ProPex were equally accurate, whereas ES-03 was the least accurate.
electronic apex locators; ES-02; ES-03; Propex; root canal length
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Podaci o prilogu
1147-1147.
2009.
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objavljeno
Podaci o matičnoj publikaciji
International endodontic journal
Dummer, PMH
Edinburgh: European Society of Endodontology
0143-2885
Podaci o skupu
14th Biennial Congress of the European Society of Endodontology.
poster
24.09.2009-26.09.2009
Edinburgh, Ujedinjeno Kraljevstvo
Povezanost rada
Elektrotehnika, Dentalna medicina