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Periapical radiographs overestimate root canal wall thickness during post space preparation
(Wiley-Blackwell, 2008-08-01)
Aim To evaluate differences between anatomic and radiographic measurements of root canal wall thickness (RCWT) after each root canal preparation stage during post placement.Methodology Twenty mandibular premolars with a ...
In vitro evaluation of root canal preparation using oscillatory and rotary systems in flattened root canals
(Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru, 2007-01-01)
Objective: the aim of this study was to evaluate the biomechanical preparation of flattened root canals using the following systems: Endo-Eze AET stainless steel oscillatory instruments (Ultradent) and RaCe rotary NiTi ...
Effect of zoledronic acid used in the root surface treatment of late replanted teeth: A study in rats
(2010-12-01)
This study evaluated the use of zoledronic acid, a resorption inhibitor, as a medication for root resorption treatment of late replanted teeth. Twenty-four maxillary right central incisors of rats were avulsed and kept dry ...
Effect of the root canal final rinse protocols on the debris and smear layer removal and on the push-out strength of an epoxy-based sealer
(2013-05-01)
The aim of the present study was to evaluate the efficacy of QMiX, SmearClear, and 17% EDTA for the debris and smear layer removal from the root canal and its effects on the push-out bond strength of an epoxy-based sealer ...
Effectiveness of gutta-percha and Resilon in filling lateral root canals using the Obtura II System
(Sociedade Brasileira de Pesquisa Odontológica (SBPqO), 2011-05-01)
The aim of this study was to evaluate the effectiveness of gutta-percha and Resilon in filling lateral root canals by using the Obtura II system. Root canals of artificial teeth were prepared using a standard protocol, and ...
Apical leakage after root canal filling with an experimental calcium hydroxide gutta-percha point
(1996-12-01)
This study was an in vitro analysis of the apical seal of root canals filled with an experimental calcium hydroxide gutta-percha point. One hundred and ten recently extracted human permanent teeth with a single root were ...
The effects of canal preparation and filling on the incidence of dentinal defects
(Wiley-Blackwell Publishing, Inc, 2009-03-01)
To evaluate ex vivo the incidence of defects in root dentine before and after root canal preparation and filling.Eighty extracted mandibular premolars were divided equally in four groups. Group 1 was left unprepared. All ...
Periapical tissue healing after post space preparation with or without use of a protection plug and root canal exposure to the oral environment. Study in dogs
(2007-12-01)
The purpose of this study was to evaluate the influence of coronal leakage on the healing of dogs' periapical tissues after root canal filling, post space preparation and protection or not with a temporary sealer plug. ...
Apical leakage following root canal dressing with calcium hydroxide.
(1995-12-01)
The purpose of this study was to analyse the apical leakage in teeth filled by the lateral condensation technique following medication with calcium hydroxide. One hundred and twenty extracted human teeth were biomechanically ...
Tooth embedding medium influences the accuracy of electronic apex locator
(2012-12-01)
This study evaluated the influence of tooth embedding media on the accuracy ofan electronic apex locator. The root canal length of 20 human mandibular canines was measured by inserting a 15 K-file into the root canal up ...