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Influence of the type of vehicle and limit of obturation on apical and periapical tissue response in dogs' teeth after root canal filling with mineral trioxide aggregate
(Elsevier B.V., 2007-06-01)
The purpose of this study was to investigate the influence of the type of vehicle (distilled water or propyleneglycol) on the response of apical tissues of dogs' teeth after root canal filling with mineral trioxide aggregate ...
Calcium hydroxide root canal sealers: Evaluation of pH, calcium ion concentration and conductivity
(1997-12-01)
The calcium hydroxide ionization of four root canal sealers (Sealapex, CRCS, Sealer 26, and Apexit) was studied by measuring conductivity and pH and by conducting atomic absorption spectrophotometry. Samples 6 mm in diameter ...
Efficacy of four irrigation needles in cleaning the apical third of root canals
(2013-05-06)
This study aimed to evaluate the influence of irrigation needle gauge and design, and the final root canal diameter on the apical cleaning efficacy. Twelve human mandibular incisors were used. At different stages of root ...
pH changes at the surface of root dentin when using root canal sealers containing calcium hydroxide
(1996-12-01)
The purpose of this study was to investigate long-term pH changes in cavities prepared in root surface dentin of extracted teeth after obturation of the root canal with gutta-percha and a variety of sealers containing ...
Analysis of Apical Root Transportation Associated with Protaper Universal F3 and F4 Instruments by Using Digital Subtraction Radiography
(Elsevier B.V., 2010-06-01)
Introduction: The aim of this study was to assess the occurrence of apical root transportation after the use of Pro Taper Universal rotary files sizes 3 (F3) and 4 (F4). Methods: Instruments were worked to the apex of the ...
Assessment of the apical seal of root canals using different filling techniques.
(2009-12-01)
The aim of this study was to investigate the apical leakage of roots filled by three different gutta-percha techniques: lateral condensation, Tagger's hybrid and E&Q Master. Forty-two extracted single-rooted teeth were ...
Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength
(Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru, 2014)
Effect of different root canal sealers on periapical repair of teeth with chronic periradicular periodontitis
(1998-03-01)
Teeth with induced chronic periradicular periodontitis in dogs were root canal treated. After the biomechanical preparation, using K files and 5.25% sodium hypochlorite as the irrigant solution, all root canals were dressed ...
The Ability of Different Nickel-Titanium Rotary Instruments To Induce Dentinal Damage During Canal Preparation
(Elsevier B.V., 2009-02-01)
The purpose of this study was to compare the incidence of dentinal defects (fractures and craze lines) after canal preparation with different nickel-titanium rotary files. Two hundred sixty mandibular premolars were selected. ...
Mechanized instrumentation of root canals oscillating systems
(2013-01-01)
Cleaning and shaping are important steps in the root canal treatment. Despite the technological advances in endodontics, K and Hedströen files are still widely used. In an attempt to be more effective in preparing the root ...