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[Comparison of the precision of two electronic apical locators in teeth with simulated perforations]
Teresa Flora Astocaza Reátegui1, Lourdes Rocío Ayarza Flórez1, Carmen Rosa García Rupaya1
1División de Carielogía y Endodoncia, Carrera de Estomatología, Universidad Científica del Sur. Lima, Perú. tere.22694@gmail.com, rocioayarza@hotmail.com, gcarmen_rosa@hotmail.com Universidad Científica del Sur División de Carielogía y Endodoncia Carrera de Estomatología Universidad Científica del Sur Lima Peru tere.22694@gmail.com rocioayarza@hotmail.com gcarmen_rosa@hotmail.com.
Objective:
The purpose of the study was to compare the precision of the Propex Pixi and Raypex 6 electronic apical locators in determining the working length of teeth with simulated perforations at different levels of the root canal.
Materials And Methods:
36 uniradicular lower premolars were used with a canal randomly divided into three groups of 12 teeth each. In the first group two simulated perforations were made at the middle and apical level. In the second group a simulated cervical perforation was made, and in the third group a simulated perforation was performed at the apical level. Two electronic apical locators Propex Pixi and Raypex 6 were used, and the real length of the canal was measured with a digital Vernier caliper. Descriptive and inferential statistics were applied with the Friedman test at a confidence level of 95%.
Results:
When comparing the precision of the lengths obtained by the Propex Pixi and Raypex 6 apical electronic locators, statistically significant differences were found in the real length of the canal (p= 0.006) between simulated perforation of lower premolars at the cervical (p<0.001) and the apical level (p=0.008).
Conclusion:
The Propex Pixi apical electronic locator (Dentsply Maillefer - Germany) presented greater precision in the determination of the real canal length in teeth with simulated perforations at different levels of the root canal.
