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PubMed · 1399057

Variables affecting electronic root canal measurement.

Y N Wu·J N Shi·L Z Huang·Y Y Xu
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Abstract

This study was conducted in two parts. In the first part, 20 single-rooted teeth that had been scheduled for extraction were investigated. The electronic root canal lengths were measured in vivo with a Dental Sono-Explorer type Y-III, and the actual canal lengths were measured after extraction of the teeth. The rate of agreement of the two measurements was 77.5% within a range of +/- 0.5 mm, while it was 100% at +/- 2.0 mm, which is acceptable clinically. In the second part, there were 19 simulated canals whose lengths and apical foramen sizes were known beforehand. Experiments revealed a negative correlation between the areas of the apical foramina and the difference between the electronic and the actual root canal lengths. This relationship was shown by the linear regression equation: ŷ = 0.6-1.6x. With the exception of the smallest areas of foramina, electronic root canal length measurements were less than the actual lengths.

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Analysis of VarianceDental Pulp CavityElectronics, MedicalHumansOdontometryRoot Canal TherapyTooth RootJournal Article

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Y N Wu, J N Shi, L Z Huang, Y Y Xu. 1992. Variables affecting electronic root canal measurement.. https://doi.org/10.1111/j.1365-2591.1992.tb00741.x

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