Minimal Apical Enlargement for Penetration of Irrigants to the Apical Third of Root Canal System: A Scanning Electron Microscope Study

BACKGROUND: The aim of this study was to determine minimal apical enlargement for irrigant penetration into apical third of root canal system using scanning electron microscope (SEM). MATERIALS AND METHODS: Distobuccal canals of 40 freshly extracted human maxillary first molar teeth were instrumente...

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Detalles Bibliográficos
Autores principales: Srikanth, P, Krishna, Amaravadi Gopi, Srinivas, Siva, Reddy, E Sujayeendranatha, Battu, Someshwar, Aravelli, Swathi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dentmedpub Research and Printing Co 2015
Materias:
Original Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4479783/
https://www.ncbi.nlm.nih.gov/pubmed/26124608
Descripción
Sumario:BACKGROUND: The aim of this study was to determine minimal apical enlargement for irrigant penetration into apical third of root canal system using scanning electron microscope (SEM). MATERIALS AND METHODS: Distobuccal canals of 40 freshly extracted human maxillary first molar teeth were instrumented using crown-down technique. The teeth were divided into four test groups according to size of their master apical file (MAF) (#20, #25, #30, #35 0.06% taper), and two control groups. After final irrigation, removal of debris and smear layer from the apical third of root canals was determined under a SEM. Data was analyzed using Kruskal–Wallis and Mann–Whitney tests. RESULTS: Smear layer removal in apical third for MAF size #30 was comparable with that of the control group (size #40). CONCLUSION: Minimal apical enlargement for penetration of irrigants to the apical third of root canal system is #30 size.

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