Open AccessMicrohardness characteristics values of root canal dentin after application with different types of EDTA
Author(s) -
Wahyuniwati Wahyuniwati,
Juni Jekti Nugroho,
Aries Chandra Trilaksana,
Christine Anastasia Rovani,
Nurhayaty Natsir,
Indrya Kirana Mattulada
Publication year - 2016
Publication title -
journal of dentomaxillofacial science
Language(s) - English
Resource type - Journals
eISSN - 2503-0825
pISSN - 2503-0817
DOI - 10.15562/jdmfs.v1i1.25
Subject(s) - cementoenamel junction , dentin , indentation hardness , dentistry , root canal , distilled water , knoop hardness test , chemistry , premolar , negative control , significant difference , smear layer , molar , materials science , mathematics , medicine , metallurgy , chromatography , microstructure , traditional medicine , statistics
This study aims to determine the characteristics of the microhardness impairment root canal dentin after application with different types of EDTA. Samples mandibular premolar teeth with one root canal, each divided into 4 groups: EDTA solution, EDTA gel, EDTA cream and negative control; and each group consisted of 6 samples. The teeth were decoronated at cementoenamel junction (CEJ), prepared by the crown down pressureless technique, cut along longitudinal direction, and each sample was attached to selfcured acrylic and then soaked in distilled water. Samples were taken early microhardness measurement by means of Digital Vickers Microhardness Tester. The sample is then applied to the appropriate group of materials EDTA for 5 minutes, except for the negative control group, soaked in saline solution for 5 menit, then performed the final measurement of microhardness of dentin. The results of measurements taken from the average value of measurements made at 3 points, coronal, middle and apical. Data were collected and analyzed using ANOVA and Tukey’s Post Hoc test.The results showed there are differences in dentin microhardness decrease significantly in all treatment groups compared to the negative control group (p 0.05 which means there is no difference in microhardness reduction in dentin significantly among the test group.