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Abstract
Introduction: Full decontamination and disinfection of the root canal system is essential for the success of regenerative endodontic procedures. The relevant literature has little information on the mechanical cleaning of immature teeth with modern endodontic instruments.
Aim: To compare the thickness and volume of the dentin removed from the roots of immature teeth after endodontic preparation using XP-endo Finishers, Gentlefile Brushes and a standard H-file scraping technique through micro-computed tomography.
Materials and methods: The study included 51 immature permanent molars. Endodontic access was prepared and without performing preliminary pulp extirpation, the teeth were divided into three groups. The teeth in the Group 1 were instrumented for two minutes with an XP-endo finisher, Group 2 teeth - for two minutes with a Gentlefile Brush; in Group 3, the root canal walls were scraped with a No. 40 H-file. The thickness and the volume of the removed dentin was assessed using micro-CT imaging before and after the use of the instruments.
Results: There was no statistically significant difference in the mean thickness of dentin removed between the teeth prepared with the XP-endo finisher and the Gentlefile Brush. When comparing the mean values of volume of dentin removed between the separate groups, a statistically significant difference was found for every compared pair with the highest volume of removed dentin in the group prepared with a hand instrument.
Conclusion: When the endodontic systems we tested are used to scrape the root canal in immature permanent teeth the amount of hard dental tissue is significantly less than that obtained using a hand file.
Keywords
immature permanent teeth, Gentlefile Brush, XP-endo finisher, regenerative endodontics
Резюме
Введение: Полная деконтаминация и дезинфекция системы корневых каналов имеет важное значение для успеха регенеративных эндодонтических процедур. В соответствующей литературе содержится мало информации о механической чистке незрелых зубов современными эндодонтическими инструментами.
Цель: Сравнить толщину и объём дентина, удалённого из корней незрелых зубов после эндодонтического препарирования с использованием XP-endo finisher, Gentlefile Brushes и стандартной H-file техники удаления с помощью микрокомпьютерной томографии.
Материалы и методы: В исследование включены 51 незрелый постоянный моляр. Эндодонтический доступ был обеспечен, и без предварительного удаления пульпы зубы были разделены на три группы. Зубы в группе 1 обрабатывали инструментами в течение двух минут с помощью XP-endo finisher, в группе 2 - в течение...