Results 51 to 60 of about 9,621 (243)

The Paleoenvironment of the Ndutu Bed at Olduvai Gorge in the Context of Middle Stone Age Expansion in Eastern Africa: A Multiproxy Approach to Ungulate Analyses From the Victoria Cabrera Site and Dorothy Garrod Site (MIS 5)

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT The study of the Eastern African archaeological record is essential for understanding the origin and evolution of the Middle Stone Age (MSA). However, Olduvai Gorge, one of the primary regions in human evolution studies, has few sites associated with the MSA.
Juan Marín, Iván Ramírez‐Pedraza, David M. Martín‐Perea, Irene Solano‐Megías, Natalia Abellán‐Beltrán, Antonio Rodríguez‐Hidalgo, Agness Gidna, Audax Mabulla, José‐Manuel Maíllo‐Fernández   +8 more
wiley   +1 more source

Synthesis, modification, and chlorhexidine loading of polymer modified‐HM‐HAP particles: In vivo antibacterial analysis and cell cytotoxicity assessment

Smart Molecules, EarlyView.
This study presents the synthesis of hollow mesoporous hydroxyapatite (HM‐HAP) particles modified with different weights PEG and PEI. Chlorhexidine was loaded onto the particles. SEM analysis confirmed no significant morphological changes. Antibacterial activity was tested in vitro and in vivo using mouse oral bacteria, demonstrating promising results.
Farishta Shafiq, Chenyu Liu, Simiao Yu, Yongxin Pan, Min Ji, Qingzhao Shi, Weihong Qiao   +6 more
wiley   +1 more source

Comparison between Sandblasted Acid-Etched and Oxidized Titanium Dental Implants: In Vivo Study [PDF]

International Journal of Molecular Sciences, 2019
The surface modifications of titanium dental implants play important roles in the enhancement of osseointegration. The objective of the present study was to test two different implant surface treatments on a rabbit model to investigate the osseointegration.
Velasco Ortega, Eugenio, Ortiz García, Iván, Jiménez Guerra, Álvaro, Monsalve Guil, Loreto, Muñoz Guzón, Fernando María, Pérez, Román A., Gil, F. Javier   +6 more
openaire   +5 more sources

Engineering Nanoscale Frontiers: Valve Metal Oxide Nanostructures From Fundamentals to Multifunctional Biomedical Applications

The Chemical Record, EarlyView.
Valve metal oxide nanostructures such as TiO2, Ta2O5, Nb2O5, ZrO2, and HfO2 are emerging as versatile biomedical platforms due to their tunable surface properties, exceptional stability, and inherent biocompatibility. This review highlights their synthesis, physicochemical properties, and biological interactions, addressing their roles in advanced ...
Nina Kummer, Désirée Gül, İdris Sargin, Mustafa Dolaz, Dzmitry Shcharbin, Shirley K. Knauer, Burcu Önal Acet, Emrah Dikici, Mingyuan Gao, Mehmet Odabaşı, Ömür Acet, Roland H. Stauber   +11 more
wiley   +1 more source

Etching on the edge: enamel loss under repeated and active HCl applications as a resin infiltration pretreatment

Journal of Applied Oral Science
Considering that a single passive application of hydrochloric acid (HCl) as a resin infiltration pretreatment can remove between 20 and 45 µm of enamel and cause etching that extends up to 2 mm beyond the white spot lesions (WSLs), it is plausible that ...
Maria Paula Novaes Camargo MANNA, Talita Portela PEREIRA, Bruna de Oliveira IATAROLA, Mariele VERTUAN, Ana Carolina MAGALHÃES, Denise Maria ZEZELL, Luciana Fávaro FRANCISCONI-DOS-RIOS   +6 more
doaj   +1 more source

Nonthermal plasma approaches for combating implant‐associated infections: A compendious review

VIEW, EarlyView.
Implant‐associated infections pose serious clinical challenges. Non‐thermal plasma (NTP) modifications overcome this bottleneck in distinct ways relative to traditional sterilization methods. Gas‐phase plasmas generate highly energetic species, UV radiation and reactive oxygen/nitrogen species (RONS), which alter the implant surface properties.
A. M. Trimukhe, Satish Rojekar, Amol Gholap, K. Navaneetha Pandiyaraj, Mukesh Patekar, Claudia Riccardi, R. R. Deshmukh, Tomáš Kovářík, Kalim Deshmukh   +8 more
wiley   +1 more source

Effect of Phosphoric Acid on the Self Etching Primer Bond Strength and its Relation to Oral Health Status [PDF]

Iranian Journal of Public Health, 2005
Self etching primers, due to ease of manipulation, have been extensively used in recent years. These self etching primers containing a relatively weak acid, may not provide an optimal bond strength.
E Yassini, M Hedayati   +1 more
doaj   +1 more source

Covalently-Linked Hyaluronan versus Acid Etched Titanium Dental Implants: A Crossover RCT in Humans [PDF]

International Journal of Molecular Sciences, 2019
Biochemical modification of titanium surfaces (BMTiS) entails immobilization of biomolecules to implant surfaces in order to induce specific host responses. This crossover randomized clinical trial assesses clinical success and marginal bone resorption of dental implants bearing a surface molecular layer of covalently-linked hyaluronan in comparison ...
Saturnino Marco Lupi, Arianna Rodriguez y Baena, Clara Cassinelli, Giorgio Iviglia, Marco Tallarico, Marco Morra, Ruggero Rodriguez y Baena   +6 more
openaire   +3 more sources

Surface Micro‐Discharge Plasma for Multiple Teeth Bleaching: Efficacy, Mechanism and Safety

High Voltage, EarlyView.
ABSTRACT Hydrogen peroxide (H2O2) is the commonly‐used bleaching chemical in clinical practice, but its excessive concentrations can cause tooth damage. Atmospheric pressure cold plasma is considered a promising new technique for tooth bleaching. Surface micro‐discharge (SMD) devices can generate large‐scale plasma, which holds potential for treating ...
Ruike Chen, Haoran Feng, Yinglong Li, Hong Pan, Hangbo Xu, Zhen Jiao, Dongjie Cui, Ruonan Ma   +7 more
wiley   +1 more source

125 years of exploration and research at Gough's Cave (Somerset, UK) 125 ans d'exploration et de recherches à Gough's Cave (Somerset, Royaume‐Uni)

Journal of the Royal Anthropological Institute, EarlyView.
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello, Mark D. Lewis, Simon A. Parfitt   +2 more
wiley   +1 more source