Histological investigation of the cleaning effectiveness of different biomechanic processes of isthmus in lower molars

dc.authorid0000-0003-1698-9776
dc.contributor.authorAydın, Rabia Nur
dc.contributor.authorGenço?lu, Nimet
dc.date.accessioned2023-10-05T09:02:42Z
dc.date.available2023-10-05T09:02:42Z
dc.date.issued2023
dc.departmentİstanbul Medipol Üniversitesi, Diş Hekimliği Fakültesi, Endodonti Ana Bilim Dalı
dc.description.abstractObjectives This study aimed to evaluate the efficacy of different instruments (Hyflex, ROTATE, and hand files) and irrigation methods (EndoUltra, EndoActivator, and side-perforated syringe) in the mesial root canal of a mandibular first molar with isthmuses. Materials and Methods Sixty-three mandibular molar teeth with isthmus were selected using cone beam computed tomography (CBCT) images. The root canals were instrumented with Hyflex, ROTATE, or hand files (21 of each) and three of each as control group and the specimens were embedded in silicone blocks. Final irrigation was performed with the perforated syringe or ultrasonic (EndoUltra) or sonic irrigation (EndoActivator). All canals were irrigated using 5.25% NaOCl solution (15 mL). Then, the roots were stained with hematoxylin-eosin, and specimens were sliced for histologic evaluation. The isthmus regions (2.7, 3, 4.7, and 5 mm from the apex) were analyzed, and the percentage of debris was calculated. Statistical Analysis All data were statistically analyzed using one-way analysis of variance and Tukey's tests. Results Both Hyflex and ROTATE groups showed less debris compared with the hand instrument group (P < 0.05). When irrigation methods were compared, EndoUltra showed the least, followed by EndoActivator and perforated needle irrigation having the maximum debris (p < 0.05). When sections were compared, the maximum debris was found in the apical section and the least in the coronal section (p < 0.05). Conclusion Although none of the methods cleaned the isthmus completely, nickel-titanium (NiTi) systems and ultrasonic and sonic systems removed more debris than the side-perforated needle syringe irrigation.
dc.identifier.citationAydın, R. N. ve Genço?lu, N. (2023). Histological investigation of the cleaning effectiveness of different biomechanic processes of isthmus in lower molars. European Journal of Dentistry, 17(2), 517-523. https://doi.org/10.1055/s-0042-1753455
dc.identifier.doi10.1055/s-0042-1753455
dc.identifier.endpage523
dc.identifier.issn1305-7456
dc.identifier.issn1305-7464
dc.identifier.issue2
dc.identifier.pmid36351453
dc.identifier.scopus2-s2.0-85143551709
dc.identifier.scopusqualityQ1
dc.identifier.startpage517
dc.identifier.urihttps://doi.org/10.1055/s-0042-1753455
dc.identifier.urihttps://hdl.handle.net/20.500.12511/11527
dc.identifier.volume17
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorAydın, Rabia Nur
dc.language.isoen
dc.publisherGeorg Thieme Verlag
dc.relation.ispartofEuropean Journal of Dentistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsAttribution 4.0 International*
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subjectDebris
dc.subjectIsthmus
dc.subjectSonic Irrigation
dc.subjectUltrasonic Irrigation
dc.titleHistological investigation of the cleaning effectiveness of different biomechanic processes of isthmus in lower molars
dc.typeArticle

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