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Cone beam CT evaluation of the presence of anatomic accessory canals in the jaws
accessory canals CBCT
2014/11/6
To assess the prevalence, location and anatomical course of accessory canals of the jaws using cone beam CT. Methods: A retrospective analysis of 4200 successive cone beam CT scans, for patients of bo...
Fundamental Experiments to Develop Eco-friendly Techniques for Conserving Frog Habitat in Paddy Areas: Escape Countermeasures for Frogs Falling into Agricultural Concrete Canals
climbing capability ecosystem conservation Japan Rana porosa porosa
2010/10/25
Frogs often drown in agricultural canals with deep concrete walls that are installed commonly in paddy areas after land consolidation projects in Japan because they cannot escape after falling into th...
Linear-like discrete-time fuzzy control in the regulation of irrigation canals
Optimal fuzzy controller linear quadratic regulator canal automation
2010/2/24
A linear-like discrete-time fuzzy controller was designed to control and stabilize a single-pool irrigation canal. Saint Venant equations for open-channel flow were linearized using the Taylor series ...
WATER QUALITY CHARACTERISTICS OF Teharn SUBTERRANEAN CANALS
Water quality Subterranean canals SUBTERRANEAN CANALS
2009/12/30
To know the water quality characteristics of Tehran subterranean canals, from 20 Feb. 1978 to 23 Sept. 1978, samples were taken from 23 of them by simple random sampling without replacement, and were ...
Analysis of the sealing ability of different obturation techniques in oval-shaped canals:a study using a bacterial leakage model
Root canal obturation Dental leakage
2009/10/19
The aim of this study was to evaluate the sealing ability of 3 obturation techniques in oval canals using a bacterial leakage model. Seventy mandibular incisors with oval canals were selected after bu...
Study of the areas and thicknesses of mesiobucal root canals prepared by three endodontic techniques
Root canal therapy Root canal anatomy & histology Digital radiography Contrast media
2009/10/19
The purpose of this study was to compare, in vitro, by means of computerized analysis of digital radiographic images, the anatomic alterations produced in the mandibular molar tooth dentinal walls of ...
Location and angulation of curvatures of mesiobucal canals of mandibular molars debrided by three endodontic techniques
Root canal therapy Root canal preparation Anatomy Abnormalities Molar
2009/10/16
The aim of this study was to assess the correlation between the degree of angulation and the position of root curvatures and their influence on the comparative results between the performances of the ...
Regulation of Irrigation Canals Using a Two-Stage Linear Quadratic Reliable Control
Irrigation canals Two-stage reliable control Linear quadratic control
2009/10/12
A 2-stage discrete-time linear quadratic reliable control technique is applied to the regulation of irrigation canals. The Saint-Venant equations of open-channel flow are linearized using the Taylor s...
A comparison of techniques for obturating oval-shaped root canals
Obturation Oval canals Sealer cement
2009/9/11
This study compared the effectiveness of three obturation techniques for oval-shaped canals. Roots of 42 extracted teeth with oval canals were randomly divided into three groups: (1) ProTaper canal pr...
Relationship between the Anatomical Characteristics of Cortical Resin Canals and Migration of Bursaphelenchus xylophilus in Stem Cuttings of Pinus thunbergii Seedlings
Bursaphelenchus xylophilus cortical resin canal nematode migration Pinus thunbergii resistance to pine wilt disease
2009/8/28
The migration of pinewood nematode, Bursaphelenchus xylophilus, inoculated on the top of 10-cm-long stem cuttings obtained from the current shoots of two types of Pinus thunbergii seedlings—a resistan...
Comparison between the Accuracy of Digital and Conventional Radiographies for Evaluation of the Curved Canals Length
Conventional Radiographies Curved Canals Length
2009/4/2
Introduction: Proper cleaning and shaping of the root canal system is one of the most important
aspects of endodontic therapy. To estimate the canal length before instrumentation in endodontic trea...
Comparison of Irrigation Penetration into the Apical Part of Canals in Hand and Rotary Instrumentations
Cleaning Filing Flaring Irrigation penetration Master Apical File
2009/4/2
Introduction: The penetration of irrigating solution to the apical one third of canals and removal of debris are dependent on the final size of the instruments and instrumentation techniques used in...
Ponding Test Results Seepage and Total Losses, Secondary Canals 13, 16, and 29 Donna Irrigation District Hidalgo County No. 1
Ponding Test Results Seepage Total Losses Secondary Canals 13, 16, and 29 Donna Irrigation District Hidalgo County No. 1
2013/9/10
Ponding Test Results Seepage and Total Losses, Secondary Canals 13, 16, and 29 Donna Irrigation District Hidalgo County No. 1.
Thermal Imaging of Canals for Remote Detection of Leaks: Evaluation in the United Irrigation District
Thermal Imaging Canals Remote Detection Leaks Evaluation United Irrigation District
2013/9/10
This report summarizes our initial analysis of the potential of thermal imaging for detecting leaking canals and pipelines. Thermal imagery (video format) was obtained during a fly over of a portion o...