A comparative evaluation of the effect of 8% and 17% ethylenediaminetetraacetic acid exposure for 1 min and 10 min on the fracture resistance of endodontically treated roots: An in vitro study
| Autor: | Shreetha Bhandary, Farhat Nasreen, Sapna Kakamari, Raghu Srinivasan, Mahesh Martur Chandrappa, Pramod Junjanna |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
Post hoc 0206 medical engineering Negative control Ethylenediaminetetraacetic acid 02 engineering and technology final irrigation Comparative evaluation 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Animal science Vertical root fracture medicine In vitro study Original Research Article General Dentistry 030206 dentistry fracture resistance medicine.disease 020601 biomedical engineering Surgery chemistry Distilled water Fracture (geology) |
| Zdroj: | Journal of Conservative Dentistry : JCD |
| ISSN: | 0974-5203 0972-0707 |
| Popis: | Objective: The objective of this study was to evaluate the effect of 8% and 17% ethylenediaminetetraacetic acid (EDTA) exposure for 1 min and 10 min on the fracture resistance of endodontically treated roots. Methodology: Sixty human single-rooted teeth were decoronated and divided into six groups (n = 10). Canal preparation was carried out except in negative control group, using the ProTaper rotary file system. Final irrigation was performed using distilled water, 17% EDTA for 1 min and 10 min, 8% EDTA for 1 min and 10 min. Thereafter, roots were obturated with ProTaper F3 Gutta-percha points and AH Plus sealer using a single-cone technique. The specimens were loaded vertically at 1 mm/min crosshead speed until vertical root fracture occurred. Results were evaluated statistically with one-way analysis of variance and post hoc Tukey test. Results: Analysis of results showed that the unprepared roots showed the highest fracture resistance and roots irrigated with 17% EDTA for 10 min showed the lowest fracture resistance. The mean fracture resistance of unprepared roots, roots irrigated with 8% EDTA for 10 min and 17% EDTA for 1 min was significantly higher than roots irrigated with 8% EDTA for 1 min, 17% EDTA for 10 min and distilled water. Conclusion: From a clinical viewpoint, if EDTA has to be used, it is safer to use higher concentration for a shorter application time or a low concentration with a longer application time. Prolonged use of high concentrations of EDTA might increase the risk of root fracture. |
| Databáze: | OpenAIRE |
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