نتایج جستجو برای: single cone gutta
تعداد نتایج: 909738 فیلتر نتایج به سال:
This project was designed to determine how a new resin based obturation material compared with traditional gutta-percha techniques in its ability to fill the prepared root canal space. Eighty single-rooted palatal and distal roots of extracted human first molars were used. The root canals were instrumented with hand and rotary files and divided into four groups. Gutta-percha and the new resin b...
Background and Aims: The purpose of this study was to evaluate the sealing ability of different thicknesses of orthograde MTA plugs in comparison with 5 mm gutta-percha. Materials and Methods: Fifty extracted single rooted human teeth were collected. After root canal preparation, the samples were randomly divided into 4 experimental (n=10) and two control groups (n=5). In group 1, the apical 5...
objective: one of the principle purposes of root canal obturation is to obtain hermetic sealing of the root canal system. according to the development of technology, many materials are now used in root canal filling. an in vitro dye leakage study was performed to evaluate the apical sealability of white-colored mineral trioxide aggregate (wmta) and gray-colored portland cement (gpc) when used a...
The purpose of this study was to evaluate in vivo the response of the periradicular tissues after endodontic treatment and root filling with Epiphany/Resilon (Penntron Clinical Technologies, LLC, Wallingford, CT) or gutta percha and new Sealapex (SybronEndo, Glendora, CA) in dogs' teeth with or without coronal restoration. Teeth without coronal restorations were used to assess the influence of ...
INTRODUCTION Gutta-percha must be removed from the root canal space during retreatment to ensure a more favorable outcome. The aim of this study was to compare the efficacy of hand instruments, RaCe and RaCe plus XP-endo finisher instruments in removal of gutta-percha from root canal walls during retreatment. METHODS AND MATERIALS Thirty single-rooted premolars were prepared, obturated, and d...
Background and Objective: The endodontic management of immature teeth with wide open apices has always posed particular problems. A number of canal preparation and filling techniques have been described such as apexification, surgery and retrograde filling, customized-cone, and apical plug. The purpose of this study was to compare the sectional technique microleakage in open apices with ...
The objective of this research was to determine if gutta-percha points with calcium hydroxide [Ca(OH)2] improve the apical seal after root canal filling and if the master point does it alone. Human single recently extracted teeth were biomechanically prepared and the root canals filled by the lateral condensation technique with ZOE and gutta-percha points, with or without calcium hydroxide. The...
Introduction: Root canal obturation is a critical factor in success or failure of a root canal treatment. The material used for root canal obturation must be able to provide a perfect seal. This study aimed to compare the ability of gutta-percha/AH26 and resilon/epiphany to prevent apical microleakage. Methods: To conduct this experimental study, 32 extracted single root human teeth were used....
Evaluation of the sealing ability of different root canal sealers: a combined SEM and micro-CT study
OBJECTIVE The purpose of this study was to analyze the ability of multiple compounds to seal the dental tubules using scanning electron microscopy (SEM) and micro-computed tomogra-phy (micro-CT). MATERIAL AND METHODS Twenty-four single-root human mandibular premolars were selected and instrumented with nickel-titanium rotary file and the final file size was #40/06. They were then randomly all...
Aims: This study aimed to assess the apical sealing ability of experimental apatite-coated gutta-percha points compared various coated root filling materials.
 Study Design: Experimental in-vitro study.
 Place and Duration Study: Department Restorative Dentistry, University Malaya, June 2014 November 2014.
 Methodology: Ninety-six extracted permanent maxillary central incisors we...
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