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Biomechanical Behaviors of Molars Restored with Endocrowns Composed of Different Materials.
Materials (Basel)
January 2025
Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing 100101, China.
To assess the biomechanical behaviors of endodontically treated molars (ETMs) restored with endocrowns composed of different materials, forty mandibular molars were assigned to five groups (n = 8 each). Untreated molars constituted the control group (group C); the rest of the teeth that underwent root canal therapy were restored with endocrowns composed of polycrystalline ceramics (ST zirconia, UPCERA) in group ZR, lithium disilicate glass ceramics (UP.CAD, UPCERA) in group LD, resin-based nanoceramics (Hyramic, UPCERA) in group NC, and feldspathic ceramics (CEREC Blocs, Sirona) in group FC.
View Article and Find Full Text PDFCracking the Code of Calcification: How Presence and Burden among Intracranial Arteries Influence Stroke Incidence and Recurrence.
AJNR Am J Neuroradiol
January 2025
University of Padova (M.C.); University of Bologna (M.O.A.); Department of Radiology (R.C, R.S., L.S.), Azienda Ospedaliero Universitaria (A.O.U.) di Cagliari, Cagliari, Sardegna, Italy; Department of Neurology and Stroke Program (S.C.), University of Maryland School of Medicine, Baltimore, Maryland, United States; CVPath Institute (R.V.), Gaithersburg, Maryland, United States; Department of Radiology (G.DR.), Azienda San Camillo Forlanini, Rome, Lazio, Italy; Department of Epidemiology (D.B.), Erasmus Medical Center, Rotterdam, South Holland, Netherlands; Department of Radiology and Nuclear Medicine (D.B.), Erasmus Medical Center, Rotterdam, South Holland, Netherlands; Mayo Clinic (L.S.), Rochester, Minnesota, United States.
Background: Intracranial atherosclerosis accounts for about 8% of all strokes in Western societies but the influence of arterial calcification on plaque instability is a topic on ongoing debate.
Purpose: Explore the association between the presence and burden of calcium in atherosclerotic plaques among intracranial arteries with the risk of clinical or silent stroke events through a systematic review and meta-analysis.
Data Sources: Adhering to PRISMA guidelines, studies from PubMed and Embase were analyzed up to May 2024.
[Preparation of multi-layer compound microcapsules and their application in self-healing of concrete cracks].
Sheng Wu Gong Cheng Xue Bao
January 2025
College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
Concrete is widely used in building construction, civil engineering, roads, bridges, etc., but concrete cracking remains a major issue in the engineering industry. To develop an effective and feasible concrete repair technology, this study combined microbial and microencapsulation technologies to prepare a multi-layer compound microcapsule using the piercing method.
View Article and Find Full Text PDFINCUOLATION THE BOTULINUM TOXIN-B IN THE ZYGOMITICUS OF THE RAT, FOLLOWED BY EVALUATION IT'S EFFECT HISTOLOGICALLY ON THE ZYGOMATIC BONE.
Georgian Med News
November 2024
1Department of biology, College of Education for Women, University of Kirkuk, Iraq.
Background: Botulinum toxin is an attenuated neurotoxin of Clostridium Botulinum gram positive bacterial, which is used in medication sialorrhea, cervical dystonia, hyperhidrosis and non-surgical cosmetic operation (aesthetic) such as facial wrinkles and reduced the bulky appearance hypertrophied of masseter muscle. This study was designed to revealed the effect of zygomiticus inoculation of botulinum toxin B in zygomatic muscle of rats on zygomatic bone.
Methods: A total of 25 male albino rats (200-260 gm) were injected facial intramuscular by a single dose of 2.
A tough soft-hard interface in the human knee joint driven by multiscale toughening mechanisms.
Proc Natl Acad Sci U S A
January 2025
Department of Sports Medicine of the Second Affiliated Hospital, and Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou 311113, China.
Joining heterogeneous materials in engineered structures remains a significant challenge due to stress concentration at interfaces, which often leads to unexpected failures. Investigating the complex, multiscale-graded structures found in animal tissue provides valuable insights that can help address this challenge. The human meniscus root-bone interface is an exemplary model, renowned for its exceptional fatigue resistance, toughness, and interfacial adhesion properties throughout its lifespan.
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