Objective: The aim of this study on human cadavers was to compare the accuracy of two electronic apex locators (EALs) Dentaport ZX (J. Morita Corporation, Tokyo, Japan) and Raypex 6 (VDW, Munich, Germany). Materials and methods: Twenty-two single rooted teeth of four human cadaver heads were scheduled for this study. Before the extraction, an access cavity was opened and the crown was cut to establish a stable reference point for all measurements. The working length determination was performed with Dentaport ZX and Raypex 6 in the presence or not of 5.25 % sodium hypochlorite (SH) using a k-file 10. The teeth were then extracted and the real working length (RWL) was measured under a stereomicroscope at ×30 magnification. The difference between the two working lengths was calculated: positive values indicate measurements exceeding the foramen, while negative values indicated measurements short of the foramen. The data were analyzed with a t test analysis. Results: The mean of distances was 0.33 ± 0.20 mm and 0.32 ± 0.2 mm for Dentaport ZX respectively in the presence or not of SH and 0.38 ± 0.20 mm and 0.39 ± 0.19 mm for Raypex 6. No statistical differences were found between the two devices (p > 0.05). Conclusions: Both apex locators showed a high accuracy in the presence or not of SH. Clinical relevance: Both electronic apex locators can be recommended for clinical use and their accuracy is not affected by SH.

Marigo, L., Gervasi, G. L., Somma, F., Squeo, G., Castagnola, R., Comparison of two electronic apex locators on human cadavers, <<CLINICAL ORAL INVESTIGATIONS>>, 2012; 20 (7): 1547-1550. [doi:10.1007/s00784-015-1644-8] [http://hdl.handle.net/10807/102095]

Comparison of two electronic apex locators on human cadavers

Marigo, Luca
Primo
;
Somma, Francesco;Castagnola, Raffaella
2016

Abstract

Objective: The aim of this study on human cadavers was to compare the accuracy of two electronic apex locators (EALs) Dentaport ZX (J. Morita Corporation, Tokyo, Japan) and Raypex 6 (VDW, Munich, Germany). Materials and methods: Twenty-two single rooted teeth of four human cadaver heads were scheduled for this study. Before the extraction, an access cavity was opened and the crown was cut to establish a stable reference point for all measurements. The working length determination was performed with Dentaport ZX and Raypex 6 in the presence or not of 5.25 % sodium hypochlorite (SH) using a k-file 10. The teeth were then extracted and the real working length (RWL) was measured under a stereomicroscope at ×30 magnification. The difference between the two working lengths was calculated: positive values indicate measurements exceeding the foramen, while negative values indicated measurements short of the foramen. The data were analyzed with a t test analysis. Results: The mean of distances was 0.33 ± 0.20 mm and 0.32 ± 0.2 mm for Dentaport ZX respectively in the presence or not of SH and 0.38 ± 0.20 mm and 0.39 ± 0.19 mm for Raypex 6. No statistical differences were found between the two devices (p > 0.05). Conclusions: Both apex locators showed a high accuracy in the presence or not of SH. Clinical relevance: Both electronic apex locators can be recommended for clinical use and their accuracy is not affected by SH.
2016
Inglese
Marigo, L., Gervasi, G. L., Somma, F., Squeo, G., Castagnola, R., Comparison of two electronic apex locators on human cadavers, <<CLINICAL ORAL INVESTIGATIONS>>, 2012; 20 (7): 1547-1550. [doi:10.1007/s00784-015-1644-8] [http://hdl.handle.net/10807/102095]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/102095
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