Results 51 to 60 of about 857,518 (248)

Calcium hydroxide induced apical barrier in fractured nonvital immature permanent incisors

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry, 2010
Management of trauma to an immature permanent incisor is a challenge, especially when the pulp is necrotic. The aim of this study is to discuss the management of fractured maxillary right and left central incisors with immature root apex.
Vellore K
doaj  

Apical surgery failures: Extraction or re-surgery? Report of five cases [PDF]

open access: yesJournal of Dental Research, Dental Clinics, Dental Prospects, 2018
Apical surgery (AS) is considered as the last resort to save teeth which cannot be treated with a conventional endodontic approach. The main goal of apical surgery is to create a barrier between the root canal system and the peri-radicular tissues by ...
Damla Torul   +2 more
doaj   +1 more source

Vulnerability of Great Barrier Reef plankton to climate change [PDF]

open access: yes, 2007
Our approach here is to examine potential ways that climate change may alter plankton communities of the GBR in the future, focusing on the physical mechanisms that currently drive plankton productivity and composition.
Richardson, A. J.   +7 more
core  

From Fiber Bundles to Architected Membranes: Triply Periodic Minimal Surface Architectures for Biohybrid Artificial Lungs

open access: yesAdvanced Materials, EarlyView.
Additively manufactured triply periodic minimal surface (TPMS) membranes offer an architecture‐driven alternative to hollow fiber bundles in artificial lungs. Multiphysics simulations and endothelialized prototypes show that the 3D‐printable membrane architecture improves gas exchange, blood flow distribution, and hemocompatibility, enabling ...
Michael Pflaum   +14 more
wiley   +1 more source

Neisseria gonorrhoeae infects the human endocervix by activating non-muscle myosin II-mediated epithelial exfoliation. [PDF]

open access: yesPLoS Pathogens, 2017
Colonization and disruption of the epithelium is a major infection mechanism of mucosal pathogens. The epithelium counteracts infection by exfoliating damaged cells while maintaining the mucosal barrier function.
Liang-Chun Wang   +7 more
doaj   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

open access: yesAdvanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko   +2 more
wiley   +1 more source

Apexification of traumatized anterior teeth with blunderbuss canals using MTA putty and collagen membrane: A case report

open access: yesЭндодонтия Today
INTRODUCTION. Trauma to developing permanent teeth can disrupt root formation, leading to open apices and weakened tooth structure.AIM. This report details the non-surgical management of an 8-year-old male with blunderbuss canals in anterior teeth using ...
R. Singhania   +7 more
doaj   +1 more source

Comparação da capacidade de dois localizadores apicais eletrônicos de determinar o limite apical da instrumentação endodôntica: estudo ex vivo [PDF]

open access: yes, 2012
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.O objetivo deste trabalho foi avaliar a capacidade de dois aparelhos eletrônicos localizarem o forame e a constrição apical, limites considerados ...
Klasener, Martha
core  

Engineering Pluripotent Stem Cells‐Derived Inner Ear Organoids With Enhanced Maturation and Reproducibility by Micro‐Topographical Cues

open access: yesAdvanced Materials, EarlyView.
Micro‐topographical cues applied through temporally controlled microscale confinement improve the reproducibility, spatial organization, and neurosensory‐associated features of pluripotent stem cell‐derived inner ear organoids. Integration with a vascularized organoid platform further enables controlled investigation of vascular‐epithelial interactions
Harshita Sharma   +15 more
wiley   +1 more source

Apical Barrier Technique In Maxillary Second Premolar: A Case Report

open access: yesInternational Dental Journal
Introduction: This case report presents the management of a 23-year-old female with chronic apical periodontitis in the maxillary right second premolar (tooth 15), characterized by recurrent gingival swelling.
Panpan Zhang
doaj   +1 more source

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