30 Jun 2017 - to Kaplan-Meier (α=0.05) analysis and load to fracture values submitted to ... Programa de Pós-Graduação em Odontologia, Passo Fundo, Rio.
Descriptors: Dental Cavity Preparation; Dental Restoration Failure;. Tooth Root ... nal structure above the cementoenamel junction (CEJ) to ensure a proper.
Mar 10, 2014 - In primary TKA, computer-assisted surgery (CAS) leads to better prosthetic alignment than mechanical navigation guides. Literature about the ...
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Reliability is considered to be a measure of the extent to which the system can ... In general, the techniques involve considering certain unpleasant facts of life at ...
Dec 16, 2013 - Figure 6. (Color online) Chemical diffusion co- efficients in aqueous sodium nitrate solutions. (squares) and NernstâHartley diffusion coeffi-.
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Azusa, CA 91702, USA. (Received 22 May 2000; in nal form 9 August 2001). Abstract. This paper is the third of a series which aims to evaluate the eVects.
Aug 4, 2010 - THE ASTROPHYSICAL JOURNAL, 719:1912â1917, 2010 August 20 doi:10.1088/0004-637X/719/2/1912. C 2010. The American Astronomical ...
Apr 11, 2018 - under three different grounding structures using CDEGS software, and the differences and similarities of spectral response under different ...
of the Single Emitter Diode Laser. Xiaoning Li, Yanxin Zhang, Jingwei Wang, Lingling Xiong, Pu Zhang, Zhiqiang Nie, Zhenfu Wang,. Hui Liu, and Xingsheng Liu ...
Abstract. It was shown by electron microscopy and X-ray diffraction that a polystyrene solid with a three-level hierarchical structure was formed when the solvent ...
Jan 24, 1980 - droitin 6-sulphate (shark cartilage), dermatan sul- phate (porcineskin) and hyaluronic acid (human umbilical cord) were obtained from Sigma ...
Feb 9, 2008 - The most famous examples for such traditions in animals .... we mapped the social networks as graphs where the vertices represent individuals ...
discourse (Wing eld, Lahar, & Stine, 1989; Wing eld, Wayland,. & Stine, 1992). For this reason, and because elderly adults gener- ally maintain good procedural ...
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Oct 31, 2013 - Gdansk University of Physical Education and Sport in Gdansk, Vol. 5, No. ... 2 School of Psychology, University of Central Lancashire, UK.
Influence of geminate structure on early Arabic templatic patterns .... Hindi (Bhaya Nair 1991), where deletion of onsets is present in many disyllabic Hindi words ..... On average, the children's age at the 4-word point (mean 1;4) is older than ...
Influence of the Remaining Coronal Structure on the. Resistance of Teeth with Intraradicular Retainer. Jefferson Ricardo PEREIRA. Tatiany de Mendonça NETO.
Braz Dent J (2005) 16(3): 197-201
Resistance of teeth with intraradicular retainer
197 ISSN 0103-6440
Influence of the Remaining Coronal Structure on the Resistance of Teeth with Intraradicular Retainer Jefferson Ricardo PEREIRA Tatiany de Mendonça NETO Vinícius de Carvalho PORTO Luiz Fernando PEGORARO Accácio Lins do VALLE Department of Prosthodontics, Faculty of Dentistry of Bauru, University of São Paulo, Bauru, SP, Brazil
The aim of this study was to compare the resistance of endodontically treated teeth with intraradicular retainer different amounts of remaining coronal structure. Fifty freshly extracted maxillary canines were endodontically treated and randomly assigned to five groups (n=10), as follows: group 1 (control) = teeth with custom cast post and core; group 2 = teeth without remaining coronal structure; group 3, 4 and 5 = teeth with 1 mm, 2 mm and 3 mm of remaining coronal structure, respectively. All specimens in groups 2 to 5 were restored with prefabricated post and resin core. The teeth were embedded in acrylic resin and the fracture strength was measured on a universal testing machine at 45 degrees to the long axis of the tooth until failure. Data were analyzed statistically by one-way analysis of variance and Tukey’s test. There was no significant differences (p>0.05) between the control group and group 2, and between groups 3, 4 and 5 (p>0.05). Control group and group 2 had significantly higher resistance strength than groups 3, 4 and 5 (p0.05) between the control group and group 2, and between groups 3, 4 and 5 (p>0.05). Control group and group 2 had significantly higher fracture strength than groups 3, 4 and 5 (p
