The influence of autoclave sterilization on the cyclic fatigue of M-wire rotary endodontic instruments

Nenad Stošić; Jelena Popović; Antonije Stanković; Aleksandar Mitić; Marija Nikolić; Kosta Todorović

doi:10.2298/VSP240429058S

Nenad Stošić University of Niš, Faculty of Medicine, Clinic of Dental Medicine, Department of Restorative Dentistry and Endodontics, Niš, Serbia https://orcid.org/0000-0003-4792-7375
Jelena Popović University of Niš, Faculty of Medicine, Clinic of Dental Medicine, Department of Restorative Dentistry and Endodontics, Niš, Serbia https://orcid.org/0000-0001-5558-1066
Antonije Stanković University of Niš, Faculty of Medicine, Niš, Serbia https://orcid.org/0009-0004-5873-774X
Aleksandar Mitić University of Niš, Faculty of Medicine, Clinic of Dental Medicine, Department of Restorative Dentistry and Endodontics, Niš, Serbia https://orcid.org/0000-0002-9137-8441
Marija Nikolić University of Niš, Faculty of Medicine, Clinic of Dental Medicine, Department of Restorative Dentistry and Endodontics, Niš, Serbia https://orcid.org/0000-0002-5202-7497
Kosta Todorović University of Niš, Faculty of Medicine, Department of Oral Surgery, Niš, Serbia https://orcid.org/0000-0002-6837-2017

DOI: https://doi.org/10.2298/VSP240429058S

Ključne reči: legure;, stomatološki instrumenti;, dezinfekcija;, endodoncija;, oprema, malfunkcija

Sažetak

Uvod/Cilj. Najvažniji momenat u savremenoj endodonciji je uključivanje rotirajućih instrumenata izrađenih od legure nikl-titanijum u svakodnevni klinički rad, koji su zbog svojih superiornijih osobina potisnuli instrumente od nerđajućeg čelika. Cilj ovog rada bio je da se ispita uticaj procesa sterilizacije u autoklavu na pojavu cikličnog zamora (CZ) kod dve vrste rotirajućih instrumenata, izrađenih M-wire tehnologijom, sa različitim tipovima rotacije. Metode. U istraživanje su bila uključena dva tipa rotirajućih M-wire instrumenata – 48 ProTaper Next^® instrumenata sa punom rotacijom i 48 WaveOne^® Gold instrumenata sa recipročnom rotacijom. Svaka od dve grupe instrumenata podeljena je u još četiri dodatne grupe od po 12 instrumenata u zavisnosti od broja ciklusa sterilizacije u autoklavu. Instrumenti su testirani u arteficijelnom kanalu sa radijusom krivine od 2 i 5 mm. Rezultati. Statistički značajno veća otpornost na CZ uočena je kod WaveOne^® Gold instrumenata u odnosu na ProTaper Next^® (p < 0,001) instrumente, kako u grupi nesterilisanih tako i nakon njihovog izlaganja prvom, trećem i petom ciklusu sterilizacije. Treći i peti ciklus sterilizacija su značajno smanjili otpornost na pojavu CZ u WaveOne^® Gold (p < 0,001) grupi. Nije postojala statistički značajna razlika u otpornosti na CZ kod sterilisanih i nesterilisanih instrumenata u grupi ProTaper Next^®. Zaključak. Sterilizacija u autoklavu kod instrumenata baziranih na M-wire tehnologiji nije povećala otpornost na CZ.

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Uticaj sterilizacije u autoklavu na pojavu cikličnog zamora rotirajućih M-wire endodontskih instrumenata

Sažetak

Reference