Results 21 to 30 of about 32,315 (256)

Root canal morphology of mandibular first molars: Comparison of the diagnostic accuracy of cone-beam computed tomography and the sectioning technique

Dental Research Journal, 2023
Background: A successful endodontic treatment requires a comprehensive knowledge of the root canal morphology. This study compared the diagnostic accuracy of cone-beam computed tomography (CBCT) and the sectioning technique for the assessment of ...
Mohammad Yazdizadeh, Parniyan Alavinezhad, Abtin Sadrishahrezaei, Sanaz Sharifishoshtari   +3 more
doaj   +1 more source

Flowable Urethane Dimethacrylate-Based Filler for Root Canal Obturation in Primary Molars: A Pilot SEM and microCT Assessment

Children, 2021
Pulpectomy in deciduous teeth involves endodontic access opening, root canal debridement and obturation with an appropriate filling material. EndoREZ (ER) is the urethane dimethacrylate-based filler, which can be used for root canal obturation in ...
Saulius Drukteinis, Audra Drukteiniene, Lesbia Drukteinis, Luc C. Martens, Sivaprakash Rajasekharan   +4 more
doaj   +1 more source

Computing Rational Parametrizations of Canal Surfaces

Journal of Symbolic Computation, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Martin Peternell, Helmut Pottmann
openaire   +2 more sources

Effect of cleaning materials on microtensile bond strength of resin composite to primary dentin contaminated with root canal sealers

BMC Oral Health, 2023
Background There have been no studies on the bond strength of adhesives with dentin surfaces contaminated with root canal sealers in primary teeth without underlying permanent teeth germs.
Asu Çakir
doaj   +1 more source

Role of thermodynamic processes in plant leaf gas exchange system for assimilation of CO2 emissions from the ambient air

Journal of Environmental Engineering and Landscape Management, 2022
When temperature in the leaf gas exchange system changes, the thermodynamic parameters describing the condition of moist air also change. A temperature change of 1 oC in plant leaf tissues leads to a change in partial water vapour pressure of 144 Pa in ...
Algimantas Sirvydas, Tomas Ūksas, Paulius Kerpauskas, Rasa Čingienė   +3 more
doaj   +1 more source

On conservation of world heritage Beijing-Hangzhou grand canal for enhancing cultural ecosystem services

Heritage Science, 2023
The Beijing-Hangzhou Grand Canal carries unique social and cultural significance as a world cultural heritage, but with the acceleration of global urbanization, it has potentially severe environmental risks under continuous anthropogenic disturbances ...
Yixin Zhang, Zehui Jing, Qiuyue Huang, Xinyue Wang, Wenxin Sun, Chenyue Zhang, Jieqing Wang, Yujia Zhong, Jiesi Wang, Li Tan, Li Zheng, Bo Wang, Lifen Wang, Xiangli Sun, Jun Zhai, Weizhu Wang, Yongfa Wu, António Candeias   +17 more
doaj   +1 more source

Bonnet Canal Surfaces

Deu Muhendislik Fakultesi Fen ve Muhendislik, 2019
Bonnet yuzeyin, asli egrilikleri koruyan en az bir ihmal edilebilir izometriyi kabul edebilen bir yuzey oldugunu biliyoruz. Bu calismada, oncelikle, Oklidyen  uc boyutlu uzayinda ozel bir supurme yuzeyi olarak adlandirilan kanal yuzeylerin hangi sartlarda Bonnet yuzey olabilecegini inceledik.
ÇİMDİKER ASLAN, MURADİYE, AYDIN ŞEKERCİ, GÜLŞAH   +1 more
openaire   +4 more sources

A Comparative SEM Investigation of Smear Layer Remaining on Dentinal Walls by Three Rotary NiTi Files with Different Cross Sectional Designs in Moderately Curved Canals [PDF]

Journal of Clinical and Diagnostic Research, 2015
Objective: The objective of this study was to compare the smear layer formed on root canal walls during canal preparation of extracted human teeth by Twisted, Mtwo, and ProTaper rotary nickel titanium instruments.
GAURAV SHARMA, POOJA KAKKAR, ASIT VATS
doaj   +1 more source

Refractory apical periodontitis associated with a calculus-like deposit at the root apex

Journal of Dental Sciences, 2010
In this case report, we describe a refractory case in which a calculus-like deposit was found at the apical root surfaces of two adjacent teeth. This case involved a 45-year-old male with a sinus tract at the labial mucosa of the maxillary left central ...
Cheng-Mei Yang, Yao-Dung Hsieh, Shue-Fen Yang   +2 more
doaj   +1 more source

Numerical investigation of granular filter under the bed of a canal

Applied Water Science, 2019
To protect canal beds against erosion and to prevent seepage from the bottom or side of a canal, impermeable linings are often used. These linings can suffer from several problems including damage due to uplift pressure when the groundwater table is high.
Fatemeh Jafari, Farzin Salmasi, John Abraham   +2 more
doaj   +1 more source