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Comparison of two electronic apex locators on human cadavers
Luca Marigo1, Gian Luca Gervasi2, Francesco Somma3
1Department of Operative Dentistry, School of Dentistry, Catholic University of Sacred Heart, Largo A. Gemelli, 8, 00168, Rome, Italy.
Clinical Oral Investigations
|November 5, 2015
Summary
This study found that both the Dentaport ZX and Raypex 6 electronic apex locators are highly accurate for determining working length. Their precision is unaffected by the presence of sodium hypochlorite, making them reliable clinical tools.
Area of Science:
- Endodontics
- Dental Technology
Background:
- Accurate working length determination is crucial in endodontic treatment.
- Electronic apex locators (EALs) are widely used to improve precision.
- Comparing the performance of different EALs is essential for clinical decision-making.
Purpose of the Study:
- To compare the accuracy of two electronic apex locators: Dentaport ZX and Raypex 6.
- To evaluate the influence of sodium hypochlorite on the accuracy of these EALs.
Main Methods:
- Human cadaver single-rooted teeth were used.
- Working length was measured with Dentaport ZX and Raypex 6, with and without 5.25% sodium hypochlorite.
- Real working length was determined under a stereomicroscope after extraction.
Main Results:
- Both Dentaport ZX and Raypex 6 demonstrated high accuracy in determining working length.
- No statistically significant difference in accuracy was found between the two EALs (p > 0.05).
- The presence of sodium hypochlorite did not affect the accuracy of either device.
Conclusions:
- Dentaport ZX and Raypex 6 are accurate and reliable for clinical use.
- Sodium hypochlorite does not compromise the accuracy of these electronic apex locators.
- Both EALs can be recommended for endodontic procedures.

