Backround: The issue linked with apical extrusion of sodium hypochlorite during endodontic procedures is well documented. Despite this, the safety of sonic activation systems (which enhance the sodium hypochlorite’s efficacy) during irrigation in apexes with different dimensions has never been analyzed. Aim of the study: The aim of this study is to evaluate the quantity of irrigant extrusion during sonic activation, compared with conventional irrigation methods. Material and Methods: A model has been created to analyze the quantity of irrigant extruded from apexes with dimensions ranging in between 30 and 130 hundredths of millimeter. Two different sonic activation systems (EDDY and EndoActivator) have been investigated. Positive pressure irrigation and passive irrigation with EndoVac have been used as a control. Results: In all diameters EDDY and EndoActivator have caused less sodium hypochlorite extrusion, if compared with traditional positive pression irrigation. However, the aforementioned sonic irrigation systems, had more extrusion than passive irrigation. Conclusions: This study reveals that, even in apexes with large diameters, sonic activation systems have less risk of causing sodium hypochlorite accidents if compared with positive pressure irrigation but more than negative pressure irrigation. These instruments could be used with little risk in apexes with dimensions between 30 and 60/70 hundredths of millimeter.
Presupposti dello studio: È ampiamento noto in letteratura il rischio legato alla fuoriuscita dall’apice dell’ipoclorito di sodio durante i trattamenti endodontici. Tuttavia, la sicurezza legata all’uso degli strumenti sonici per l’attivazione dell’ipoclorito (che aumentano l’efficacia dell’irrigante) in presenza di apici di diverse dimensioni non è mai stata analizzata. Scopo dello studio: Scopo del presente lavoro è valutare la quantità di estrusione durante l’attivazione sonica di irrigante, confrontata con sistemi di irrigazione convenzionali. Materiali e Metodi: È stato costruito un modello sperimentale in grado di analizzare la quantità d’irrigante estruso oltre apice con dimensioni variabili da 30 a 130 centesimi di millimetro. Due differenti sistemi sonici di attivazione (EDDY e EndoActivator) sono stati analizzati. L’irrigazione manuale a pressione positiva e l’irrigazione passiva con sistema EndoVac sono state utilizzate come controllo. Risultati: In tutti i diametri considerati è stata evidenziata una minore fuoriuscita di liquido durante l’uso dell’EDDY e dell’EndoActivator rispetto all’irrigazione tradizionale a pressione positiva, ma superiore rispetto all’irrigazione passiva. Conclusioni: Da questo studio emerge come i sistemi di attivazione sonica dell’ipoclorito presentino un minor rischio di estrusione dell’ipoclorito se confrontati con l’irrigazione a pressione positiva anche con diametri di grandi dimensioni. Il range entro il quale è possibile utilizzare questi strumenti con relativa tranquillità è compreso tra 30 e 60/70 centesimi di millimetro.
Valutazione dell’estrusione apicale di irrigante con differenti strumenti sonici di attivazione: uno studio in vitro
PORTELLI, STEFANO
2022/2023
Abstract
Backround: The issue linked with apical extrusion of sodium hypochlorite during endodontic procedures is well documented. Despite this, the safety of sonic activation systems (which enhance the sodium hypochlorite’s efficacy) during irrigation in apexes with different dimensions has never been analyzed. Aim of the study: The aim of this study is to evaluate the quantity of irrigant extrusion during sonic activation, compared with conventional irrigation methods. Material and Methods: A model has been created to analyze the quantity of irrigant extruded from apexes with dimensions ranging in between 30 and 130 hundredths of millimeter. Two different sonic activation systems (EDDY and EndoActivator) have been investigated. Positive pressure irrigation and passive irrigation with EndoVac have been used as a control. Results: In all diameters EDDY and EndoActivator have caused less sodium hypochlorite extrusion, if compared with traditional positive pression irrigation. However, the aforementioned sonic irrigation systems, had more extrusion than passive irrigation. Conclusions: This study reveals that, even in apexes with large diameters, sonic activation systems have less risk of causing sodium hypochlorite accidents if compared with positive pressure irrigation but more than negative pressure irrigation. These instruments could be used with little risk in apexes with dimensions between 30 and 60/70 hundredths of millimeter.File | Dimensione | Formato | |
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Tesi Finale Portelli Corretta.pdf
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https://hdl.handle.net/20.500.12608/50596