Potential to induce dentinal cracks during retreatment procedures of teeth treated with 'Russian red': An ex vivo study

Autor: Eglė Nedzinskienė, Vytautė Pečiulienė, Jolanta Aleksejūnienė, Rasmutė Manelienė, Saulius Drukteinis, Audronė Jakaitienė
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Medicina, Vol 53, Iss 3, Pp 166-172 (2017)
Druh dokumentu: article
ISSN: 1010-660X
DOI: 10.1016/j.medici.2017.05.005
Popis: Objective: The aim of this study was to compare the impact of treatment procedures on roots previously treated with resorcinol–formaldehyde resin and analyze the effectiveness of dye and magnification for the detection of dentin cracks. Materials and methods: Distal roots of 80 permanent first mandibular molars with a single canal were sectioned at 3 mm and 9 mm from the anatomical apex. Two groups were formed according to the method used for root canal penetration: group 1 (K-file and Pro Taper instruments) and group 2 (Ultrasound with Pro Ultra and Pro Taper files). Before and after the completion of procedures, photographs of the roots were taken for examination for cracks or/and infraction lines with two levels of magnification and with or without a dye. Results: In groups 1 and 2, either with dye or without it, there were statistically significant differences (P
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