Since there are no data in the literature regarding comparison of marginal adaptation hydraulic sealers when used with a single-cone technique or through thermomechanical compaction, this study aimed to evaluate behavior four different endodontic two above-mentioned obturation techniques by evaluating gap existing between materials and dentinal walls scanning electron microscopy. Given objectiv...

UNLABELLED The goal of this in vitro study was to evaluate the relative biocompatibility of four endodontic sealers on the cell culture of the human fibroblast through cytotoxicity. MATERIALS AND METHODS In this study four endodontics sealers was used GuttaFlow (Roeko)silicone based sealer, AH plus (De Tray-DENTSPLY) epoxy resin based, Apexit (Vivadent) calcium hydroxide based and Endorez (Ul...

The aim of the study was to measure percentage of volume of voids and gaps in root canals obturated with different obturation materials by using micro-computed tomography (micro-CT). Forty-eight single-rooted teeth were collected and decoronated, and root canals were prepared by using rotary files. The roots were randomly allocated into 4 groups, and each group was obturated by using cold later...

Abstract Background Bacterial microleakage is an important cause of apical periodontitis and endodontic treatment failure. This study aimed to assess the bacterial nano-mineral trioxide aggregate (nano-MTA) as a sealer, Endoseal MTA, GuttaFlow Bioseal sealers in atmospheric pressure, simulated underwater diving aviation conditions. Methods In this vitro, experimental study, 180 extracted single...

Aims: The study aimed to evaluate the effect of smear layer on push-out bond strength silicone-based root canal sealers. Materials and methods: Sixty extracted, single-rooted, sound human mandibular first premolar teeth were selected for this study. Crown portion each tooth was decoronated level cement-enamel junction standardize length 16 mm. working measured by subtracting 1mm from visually d...

INTRODUCTION The aim of this study was to evaluate the pH change, viscosity and other physical properties of 2 novel root canal sealers (MTA Fillapex and Endosequence BC) in comparison with 2 epoxy resin-based sealers (AH Plus and ThermaSeal), a silicone-based sealer (GuttaFlow), and a zinc oxide-eugenol-based sealer (Pulp Canal Sealer). METHODS ISO 6876/2001 specifications were followed. The...

The primary purposes of this study were to compare the quality (length and density) and efficiency (time to completion) of obturation when single- or multiple-cone obturation techniques were used by graduating dental school students on previously instrumented single-canalled teeth using simulated clinical conditions in vitro. Five students took part in the study, each of whom obturated thirty-s...