The aim of the present study was to evaluate influence ultrasonic activation (UA) on setting time and flow four endodontic sealers: AH Plus (AH), Sealer (SP), MTA Fillapex (MTAF), BioRoot RCS (BIO). Properties were evaluated as required by ANSI/ADA Specification N° 57 (2008); only size specimens modified. UA applied using a smooth tapered tip coupled piezoelectric device (30% power) freshly mix...

O sucesso do tratamento endodôntico depende de um bom selamento canal radicular para que se evite possíveis infiltrações e contaminações dos tecidos perirradiculares. cimento tem como uma suas funções o preenchimento espaços vazios entre os cones guta-percha as paredes dentinárias, melhora a qualidade da obturação. A radiopacidade adequada cimentos endodônticos auxilia na correta visualização d...

AIM The aim of this study was to evaluate the inflammatory response to MTA Fillapex, AH Plus, and Pulp Canal Sealer Extensive Work Time (EWT), in a murine bone defect grafting model. MATERIALS AND METHODS Bilateral mandibular critical defects were produced in 45 Wistar rats with a trephine bur#2 and filled with the endodontic sealers. After 7, 14, and 28 days, the rats were euthanized and the...

AIM To evaluate the solubility of five different root canal sealers (AH Plus Jet, RealSeal SE, MTA Fillapex, Tubli-Seal, and Acroseal) in chloroform, eucalyptol and Endosolv-E solvents. MATERIALS AND METHODS Ninety root canal sealer samples were prepared and then divided into three groups for immersion in a solvent for 2, 5 or 10 minutes. The mean values of the root canal sealers' dissolution...

Background The aim of this study was to compare the in vitro effects of four different root canal sealers on the fracture resistance of endodontically treated teeth. Materials and Methods Seventy-five freshly extracted human mandibular premolars were used for the study. Teeth were divided into five groups based on type of root canal sealers used. Gutta-percha was used for all the samples: Gro...

Background This study compared the solubility and the pH of different root canal sealers in vitro. Material and Methods BioRoot™RCS, TotalFill BC Sealer, MTA Fillapex, SealapexTM, AH Plus, EasySeal, Pulp Canal Sealer™ and N2 were tested. Similar specimens were prepared using ring molds with an internal diameter of 20 ± 0,1 mm and a height of 1,5 ± 0,1 mm and digitally weighted to register the...

BACKGROUND Sealing ability is one of the most important features of endodontic sealers. The purpose of this in vitro study was to compare the sealing ability of a resin-based sealer with a mineral trioxide aggregate-based sealer. MATERIALS AND METHODS A total of 60 single-rooted extracted human teeth were randomly divided into two experimental groups (n = 25) and two control groups (n = 5). A...

The Epstein-Barr virus (EBV) Zta and Mta regulatory proteins were previously found to be required for efficient replication of oriLyt in cotransfection-replication assays, but the contribution of Mta to the replication process was unknown. We now demonstrate that Mta regulates replication gene expression. Using the polymerase processivity factor BMRF1 as an example, we found that in transfected...

Aim To assess the chemical and microstructural characteristics of dentine after use two irrigation protocols correlate this with antimicrobial properties hydraulic calcium silicate cement (HCSC) sealers changes to structure/chemistry sealer placement. Methodology Two – Protocol A using 2% NaOCl used 5 mL/5 min B (5 min) followed by 17% EDTA mL/3 were prepare dentine. The following assessed scan...