Results 91 to 100 of about 2,251,075 (341)

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

The Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou, Georgios L. Georgalis, Georgios Lazaridis, Dimitris S. Kostopoulos   +3 more
wiley   +1 more source

A review on the promising antibacterial agents in bone cement–From past to current insights

Journal of Orthopaedic Surgery and Research
Antibacterial bone cements (ABCs), such as antibiotic-loaded bone cements (ALBCs), have been widely utilized in clinical treatments. Currently, bone cements loaded with vancomycin, gentamicin, tobramycin, or clindamycin are approved by the US Food and ...
Hao Lin, Zhe Gao, Tao Shan, Ayakuzi Asilebieke, Rui Guo, Yu-chen Kan, Chun Li, Yang Xu, Jian-jun Chu   +8 more
doaj   +1 more source

Effect of an α-calcium sulfate hemihydrate/treated dentin matrix composite to regenerate bone in critically sized SD rat calvarial defects

Frontiers in Bioengineering and Biotechnology
Introductionα-Calcium sulfate hemihydrate (α-CSH) is a widely used artificial bone graft material, but it suffers from rapid deterioration and limited osteoinductivity. This study aims to develop composite cements by combining treated dentin matrix (TDM)
Mengmeng Wang, Bingyan Li, Wenshuai Li, Zelong Hu, Haojie Fu, Rui Li   +5 more
doaj   +1 more source

The use of Bioceramics as root-end filling materials in periradicular surgery: a literature review [PDF]

, 2018
Introduction: Periradicular surgery involves the placement of a root-end filling following root-end resection, to provide an apical seal to the root canal system. Historically several materials have been used in order to achieve this seal.
Abusrewil, Sumaya M., McLean, William, Scott, J. Alun   +2 more
core   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

The Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source

Structural Characterization of Calcium Sulfate Bone Graft Substitute Cements [PDF]

Materials Research, 2016
The aim of this work was to study the structural characteristics of commercially available bone graft substitute (BGS) ceramic cements. In particular, the microstructure of two calcium sulfate cements was investigated.
Evangelos P. Favvas, Konstantinos L. Stefanopoulos, Nikolaos Ch. Vordos, George I. Drosos, Athanasios Ch. Mitropoulos   +4 more
doaj   +2 more sources

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

The Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza, Marina Bento Soares, Luiz Carlos Weinschütz, Alexander Wilhelm Armin Kellner   +3 more
wiley   +1 more source

Revision of tibial TKA components: bone loss is independent of cementing type and technique: an in vitro cadaver study

BMC Musculoskeletal Disorders, 2011
Background Different bone cements and various cementation techniques can lead to different bone loss in revision surgery. We investigated the degree of tibial bone loss depending on different cements and techniques.
Timmesfeld Nina, Tibesku Carsten O, Fuchs-Winkelmann Susanne, Sibbert David, Figiel Jens, Efe Turgay, Paletta Jürgen RJR, Skwara Adrian   +7 more
doaj   +1 more source

Pliocene Te Aute limestones, New Zealand: Expanding concepts for cool-water shelf carbonates [PDF]

, 2003
Acceptance of a spectrum of warm- through cold-water shallow-marine carbonate facies has become of fundamental importance for correctly interpreting the origin and significance of all ancient platform limestones.
Al‐Aasam I. S., Beu A. G., Boreen T. D., Brand U., Brand U., Caron V., Chave K. E., Cole E. R., de Caen R. F. B., de Caen R. F. B., Francis D. A., Haywick D. W. N., Haywick D. W. N., Hood S. D., James N. P., Kamp P. J. J., Lewis K. B., Lohmann K. C., Marshall J. F., McIntyre A., Nelson C. S., Nelson C. S., Scoffin T. P., Scudeler Baccelle L. S., Smith A. M., Summerhayes C. P., Veizer J., Winefield P. R.   +27 more
core   +2 more sources

The effect of unsaturated fatty acid and triglyceride oil addition on the mechanical and antibacterial properties of acrylic bone cements

Journal of Biomaterials Applications, 2015
Acrylic bone cements have an elastic modulus several times higher than the surrounding trabecular bone. This has been hypothesized to contribute to certain clinical complications.
C. Persson, E. Robert, Elin Carlsson, C. Robo, Alejandro López, Maria Godoy-Gallardo, M. Ginebra, H. Engqvist   +7 more
semanticscholar   +1 more source