Effect of final irrigation protocols on the fracture resistance of roots with varying dentine thickness
| Autor: | Özgür İlke Atasoy Ulusoy, Yelda Nayır Paltun, Ozgur Genc Sen, Salev Zeyrek, Melih Kaya |
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| Rok vydání: | 2021 |
| Předmět: |
Irrigation
Sodium Hypochlorite Root canal 0206 medical engineering Dentistry Ethylenediaminetetraacetic acid 02 engineering and technology Mean difference 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine medicine Therapeutic Irrigation General Dentistry Edetic Acid Ultrasonic irrigation Root Canal Irrigants business.industry 030206 dentistry 020601 biomedical engineering medicine.anatomical_structure chemistry Dentin Fracture (geology) Multiple linear regression analysis Dental Pulp Cavity business Root Canal Preparation |
| Zdroj: | European Journal of Oral Sciences. 129 |
| ISSN: | 1600-0722 0909-8836 |
| Popis: | This study evaluated the effects of 9% etidronic acid (HEBP) and 17% ethylenediaminetetraacetic acid (EDTA) used either with conventional syringe irrigation (CSI) or passive ultrasonic irrigation (PUI) on the fracture resistance of roots with different dentine thickness. The root canals of 120 extracted teeth were widened, leaving dentinal walls with different thicknesses of either 0.75 mm, 1.50 mm, or 2.25 mm with 40 teeth in each group. Within each of these groups, four subgroups (n = 10) were formed according to the final irrigation regimens applied: 2.5% NaOCl-17% EDTA with CSI; 2.5% NaOCl-17% EDTA with PUI; 2.5% NaOCl + 9% HEBP with CSI; 2.5% NaOCl + 9% HEBP with PUI. The irrigated root canals were obturated with AH Plus sealer and gutta-percha cones. A compressive vertical loading was applied to the samples and the force at fracture was recorded. Data were statistically analysed using a multiple linear regression analysis. The most influencing factor for the fracture strength of roots was the remaining dentine thickness, followed by the irrigation method, and then the irrigation solution. The samples irrigated using PUI were statistically significantly more resistant to fracture than those using CSI (mean difference = 116.3 N; 95% CI = [53.9, 178.6] N). The application of HEBP was associated with higher resistance to fracture than the application of EDTA (mean difference = 71.0 N; 95% CI = [8.6, 133.3] N). |
| Databáze: | OpenAIRE |
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