Results 91 to 100 of about 857,518 (248)

The effect of one-step or two-step MTA plug and tooth apical width on coronal leakage in open apex teeth

Iranian Endodontic Journal, 2012
Introduction: Mineral trioxide aggregate (MTA) has been suggested as an effective material for apical barrier, forming an effective seal against bacterial leakage in teeth with open apices.
Farzad Danesh, Tabasom Vali, Zohreh Khalilak, Mehdi Vatanpour   +3 more
doaj  

Utility of three-dimensional-printed tooth model for training purpose of apical barrier placement technique

Endodontology
Aim: The application of three-dimensional (3D) printing in dentistry is becoming increasingly valuable from clinical dentistry to student training, teaching, and simulation training.
Nikita Garg, Charan Kamal Kaur, Akhil Rajput, Amrita Kumari, Umesh Kumar, Ashima Goyal   +5 more
doaj   +1 more source

Comparison of mineral trioxide aggregate and calcium hydroxide for apexification of immature permanent teeth: A systematic review and meta-analysis

Journal of the Formosan Medical Association, 2016
Calcium hydroxide and mineral trioxide aggregate (MTA) are used for inducing a calcific barrier at an open tooth root (apexification). The purpose of this study was to compare the efficacy of calcium hydroxide and MTA for apexification of immature ...
Jia-Cheng Lin, Jia-Xuan Lu, Qian Zeng, Wei Zhao, Wen-Qing Li, Jun-Qi Ling   +5 more
doaj   +1 more source

Super‐Multiplexed Label‐Free Raman Imaging Uncovers Novel Testicular Metabolic Couplings for Residual Body and Spermatogonial Differentiation

Advanced Science, EarlyView.
Super‐multiplexed Label‐free Raman Imaging (SLRI) enables 2D/3D metabolic mapping of intact Drosophila testes. Moving beyond descriptive morphology, it establishes a multidimensional tool for tissue metabolic remodeling, and offers a generalizable platform for complex tissue analysis, with implications extending to development and disease. ABSTRACT The
Jiaxin Li, Xia Chen, Yujuan Qi, Chen Qiao, Qiuru Huang, Dan Zhao, Weiyi Qian, Li Di, Yi Shi, Xiangqi Hu, Yueyue Shao, Kehan Wang, Zhiyu Tang‐Yang, Hanzhi Zang, Yuwen Du, Anran Dong, Jinxiong Feng, Jiayun Chen, Ying Zheng, Xiaofang Tan, Xiaoyu Zhao, Zhonghua Shi, Bo Zheng, Jun Yu   +23 more
wiley   +1 more source

Chapter 23: Climate change and Great Barrier Reef: industries and communities [PDF]

, 2007
Climate change is driving shifts in environmental conditions that, together with other human pressures, are impacting the Great Barrier Reef (GBR). Individuals, communities, and industries in the GBR catchment depend directly or indirectly on the GBR ...
Vella, K., Kelly, G., Innes, J., Fenton, M.   +3 more
core   +1 more source

Highly restrictive and directional penetration of the blood cerebral spinal fluid barrier by JCPyV.

PLoS Pathogens
The human polyomavirus JCPyV is an opportunistic pathogen that infects greater than 60% of the world's population. The virus establishes a persistent and asymptomatic infection in the urogenital system but can cause a fatal demyelinating disease in ...
Bethany A O'Hara, Avraham S Lukacher, Kaitlin Garabian, Jacob Kaiserman, Evan MacLure, Hiroshi Ishikawa, Horst Schroten, Sheila A Haley, Walter J Atwood   +8 more
doaj   +1 more source

An Aggregation‐Induced Polymerization Poly(Disulfide)‐Drug Nanoplatform for Autoimmune Uveitis Therapy via Inhibiting the cGAS‐STING Pathway

Advanced Science, EarlyView.
A cationic poly(disulfide)‐drug nanoplatform (LA/DexP) was developed to treat experimental autoimmune uveitis (EAU). With potent blood‐retinal barrier penetrability, LA/DexP releases DSP in response to high ROS and scavenges cfDNA to inhibit the cGAS‐STING signaling pathway.
Yuelan Wu, Wenbo Geng, Qinjin Dai, Wanyun Zhang, Yuxian Lai, Pei Zhang, Chunjiang Zhou, Yinuo Wang, Qingfeng Cao, Xiang Luo, Yujie Lai, Changwei Huang, Peizeng Yang   +12 more
wiley   +1 more source

Dual Lineages of Langerhans Cells Cooperate to Restore the Immune Barrier after Skin Injury

Advanced Science, EarlyView.
After skin injury, the epidermal immune barrier is rebuilt by two sources of Langerhans cells. Resident Langerhans cells first move into the wound during re‐epithelialization, guided by CXCR2 signaling. Later, recruited monocytes become long‐lived Langerhans cells.
Axel D. Schmitter‐Sánchez, Nicholas Basista, Sudhanshu Mishra, Hyeri Kim, Audrey Bench, Catherine Matte‐Martone, Min‐Soo Seo, Gun Woo Lee, Sangbum Park   +8 more
wiley   +1 more source

Nanoparticle‐Mediated Bubble Suppression During Droplet Solidification for Mechanical Reinforcement

Advanced Science, EarlyView.
Nanoparticles mediate droplet solidification by raising nucleation temperature, refining dendrites, and slowing freezing‐front advance, thereby suppressing trapped air bubbles in droplet‐based 3D printing. This strategy reduces bubble volume fraction by ∼35% and increases compressive strength by up to 39%, offering a low‐cost route to stronger printed ...
Runmiao Gao, Xuan Zhang, Mengjie Song, Ronggui Yang, Keke Shao, Jun Shen, Long Zhang, Shuhuai Yao, Yubing Guo, Ruzhu Wang, Christopher Yu Hang Chao   +10 more
wiley   +1 more source

Wedging Tube Technique For Removing Over-Apex Instrument In Incisor

International Dental Journal
Introduction: Instrument separation beyond the apical foramen is a rare but challenging complication in root canal treatment. This case presents the successful removal of an over-apex separated instrument using a custom-made wedging tube technique.
Ke Xu, Le Lu
doaj   +1 more source