Results 71 to 80 of about 1,465,933 (322)

Treatment of the Longitudinal Fracture of the Crown and Root of a Young Permanent Tooth [PDF]

open access: yes, 1993
Autor prikazuje sedmogodišnju bolesnicu s uzdužnim prijelomom krune i korijena gornjeg središnjeg sjekutiča, u koje se 8 godina, tj. do njezine petnaeste godine, uspio etapnim liječenjem sačuvati navedeni zub.
Pećina-Hrnčević, Ančica   +1 more
core  

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

open access: yesThe Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe   +3 more
wiley   +1 more source

Fracture Resistance and Initial Penetration Time of a Novel Zirconia Crown Design for Simplifying Future Endodontic Treatment: An In Vitro Study

open access: yesDentistry Journal
Objectives: This study aimed to investigate the fracture strength of a novel-designed Zirconia crown before and after access opening, and to evaluate the mode of fracture and the time needed for initial penetration through the crown.
Mohammed Mashyakhy, Hafiz Ahmed Adawi
doaj   +1 more source

Clinical management of a complicated crown-root fracture using autogenous tooth fragment: A biological restorative approach

open access: yesContemporary Clinical Dentistry, 2013
Trauma resulting in crown-root fracture is one of the most challenging fracture types. However, biologic width involvement should be carefully evaluated.
Vinaya Kumar Kulkarni   +5 more
doaj   +1 more source

Comparative study of physical properties of zirconia based dental ceramics [PDF]

open access: yes, 2009
The aim of this project was to evaluate and compare the mechanical properties of commercial yttria partially stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramics, which have generated interest in restorative dentistry because of their high ...
Pittayachawan, P, Pittayachawan, P.
core  

First Record of Tasmanian Devils in the Pilbara: Late Quaternary Subfossils From Juukan Gorge, Puutu Kunti Kurrama Country, and Insights Into Human—Faunal Relationships and Extinction

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT This study presents the first unequivocal evidence for the presence of Tasmanian devils (Sarcophilus harrisii) in the Pilbara region of northwestern Australia, based on material recovered from archaeological excavations at Juukan Gorge on Puutu Kunti Kurrama and Pinikura country.
Timothy J. Churchill   +5 more
wiley   +1 more source

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

open access: yesDeep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun   +3 more
wiley   +1 more source

Pulp neurovascular plexus response as a result of crown-root horizontal fracture and uncomplicated crown fracture in permanent dentition: a case report

open access: yes, 2022
Dental trauma often have severe and complex injuries to the dentoalveolar system. Objective: To report the treatment of crown-root horizontal fracture and uncomplicated crown fracture in permanent dentition. Case report: Child patient attended the dental
Patrícia Valéria Manozzo Kunz   +5 more
core   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Causes of scatter in high rate fracture testing of polymers [PDF]

open access: yes, 2013
A method based on the measurement of failure time is being developed by the European Structural Integrity Society to determine high rate fracture toughness of polymers.
Horsfall I.   +3 more
core   +1 more source

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