An in vitro test of a simplified model to demonstrate the operation of electronic root canal measuring devices

Czerw, Russell J; Fulkerson, Michael S.; Donnelly, Jerome C.

doi:10.1016/s0099-2399(06)80086-5

Cited by 45 publications

(38 citation statements)

References 4 publications

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“…The relative stiffness of the alginate mould prevented fluid movement inside the canal that is responsible of premature electronic readings registered with previous models (12,13). Electronic working length determination was influenced by the size of the canal at the apical terminus (2,14,15).…”

Section: Discussionmentioning

confidence: 99%

The accuracy of the Raypex5 electronic apex locator using stainless-steel hand K-file versus nickel-titanium rotary Mtwo file

Sadeghi¹,

Abolghasemi²

2010

Med Oral

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Objectives: Today many clinicians use both stainless-steel hand K-files and nickel-titanium rotary files during endodontic treatment. It is of great importance for the clinician to have confidence in the accuracy of an apex locator even if these files were used interchangeably. The purpose of this in-vitro study was to evaluate the accuracy of the Raypex5 electronic apex locator using stainless-steel hand K-file versus nickel-titanium rotary Mtwo file. Study design: Twenty straight and single canals of maxillary central teeth were used. Access cavities were prepared; actual working length were determined and compared with electronic working length obtained by means of apex locator Raypex5 using stainless-steel hand K-file and nickel-titanium rotary Mtwo file. Data was analyzed by paired T-test. Results: There was no significant difference between 15/0.02 stainless-steel hand K-file and 10/0.04 NiTi rotary Mtwo file for the mean differences between actual and electronic working length (p=0.126). Conclusions: Under the conditions of this in-vitro study, Raypex5 registered more measurements in acceptable range using 15/0.02 stainless-steel hand K-file and 10/0.04 NiTi rotary Mtwo file. It is possible to use them interchangeably without compromising the working length.

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Section: Discussionmentioning

confidence: 99%

The accuracy of the Raypex5 electronic apex locator using stainless-steel hand K-file versus nickel-titanium rotary Mtwo file

Sadeghi¹,

Abolghasemi²

2010

Med Oral

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“…Thus, the operator remained 'blinded'as to the location of the file tip in the canal and had to rely on the EAL for controlling the apical extent of canal enlargement. In this respect, the alginate model appeared to simulate the clinical situation better than the previously used gelatin models 13,22,23) . In S10, the accuracy of EALs was revealed in the order of e-Magic Finder, Root ZX, Bingo 1020 and SmarPex.…”

Section: ⅳ Discussionmentioning

confidence: 91%

In vitrocomparison of measurement accuracy in pre-enlarged and enlarged canals with four apex locators

Sung

Park

Hur

et al. 2006

J Korean Acad Conserv Dent

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“…These methods have some advantages such as simplicity, ease of use, ability to have strict control and ability to test a great number of samples in a short period compared with in vivo methods. However, the disadvantages of these methods are the possibility of electrolyte media leakage through the apical foramen, which could result in premature readings (24) and inability to simulate completely the clinical conditions (25). Therefore, the results of ex vivo studies may raise doubts about their clinical relevance.…”

Section: Discussionmentioning

confidence: 99%

Influence of Blood on the Accuracy of Raypex 5 and Root ZX Electronic Foramen Locators: An In Vivo Study

et al. 2016

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The aim of this study was to evaluate in vivo the accuracy of the Raypex 5 and Root ZX electronic foramen locators (EFLs) in the presence of blood in the root canal space. Forty single-canal teeth scheduled for extraction were selected. Access cavity was prepared and coronal enlargement was carried out. Approximately two drops of blood were collected by finger prick and injected into the root canal space. The electronic working length (EWL) of each tooth by each device was established twice before (NB group) and after (WB group) injecting blood into the root canal. The tooth was extracted and the actual working length (AWL) was determined. Data were analyzed using McNemar's test. The accuracy rates of Raypex 5 and Root ZX within 0.5 mm in the NB group were 88.9% and 91.5%, with 83.3% and 86.2% in the WB group, respectively. There were no significant differences between the accuracy of each EFL in the two groups (p>0.05). Considering the NB and WB groups, there were no statistically significant differences in the accuracy of the EFLs (p>0.05). The presence of blood in the root canal space did not influence the accuracy of the EFLs.

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An in vitro test of a simplified model to demonstrate the operation of electronic root canal measuring devices

Cited by 45 publications

References 4 publications

The accuracy of the Raypex5 electronic apex locator using stainless-steel hand K-file versus nickel-titanium rotary Mtwo file

The accuracy of the Raypex5 electronic apex locator using stainless-steel hand K-file versus nickel-titanium rotary Mtwo file

In vitrocomparison of measurement accuracy in pre-enlarged and enlarged canals with four apex locators

Influence of Blood on the Accuracy of Raypex 5 and Root ZX Electronic Foramen Locators: An In Vivo Study

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