Chávez Cabrera, Ángela MaríaÁngela MaríaChávez CabreraCaicedo Reina, RicardoRestrepo Chavarriaga, Guillermo2026-07-032026-07-031994-07-01https://repositorio.unicoc.edu.co/handle/SII-Unicoc/2934The purpose of this study is to propose a new method for measuring marginal percolation in obturated teeth using a resistance-type electronic apex locator and to determine its accuracy by comparing it with the electrochemical method. Thirty single-rooted teeth were instrumented and irrigated with 5.25% sodium hypochlorite and obturated with gutta-percha and Grossman cement using lateral and deep vertical condensation techniques, except for five teeth (group A). ​​The teeth were then deobturated in groups of five at different levels: group A at 0 mm, group B at 4 mm, group C at 5 mm, group D at 6 mm, group E at 7 mm, and group F at 8 mm. Percolation was measured with the electronic apex locator for 30 days, and for the last 10 days, it was compared with a multimeter using an electrochemical test. A significant difference was observed between the sonar and the multimeter, with the former being less sensitive than the latter.El propósito de este estudio es proponer un nuevo método para la medición de la percolación marginal en dientes obturados con un localizador electrónico de ápice tipo resistencia y destormar su exactitud comparándolo con el método electroquímico. Se tomaron 30 dientes mono-radiculares, se instrumentaron e irrigaron con Hipoclorito de Sodio al 5.25% y se obturaron con gutapercha y cemento de Grossman con técnica de condensación lateral y vertical profunda, excepto en cinco dientes (grupo A) y luego se desobturaron en grupos de cinco dientes a diferentes niveles: grupo A a 0mm, grupo B a 4mm, grupo C a 5mm, grupo D a 6mm, grupo E a 7mm, grupo F a 8mm. Se midió la percolación con localizador electrónico durante 30 días y los últimos 10 días se compare con Multímetro mediante test electroquímico. Se observó diferencia significativa entre el sonar y el multímetro, siendo menos sensible el primero que el segundo.74 pp.application/pdfesDientesElectroquimicoEstudioEstudios primariostext::thesis::bachelor thesisTEN 013TeethStudyElectrochemicalopenAccess