Results 111 to 120 of about 6,879,090 (300)

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Patterns of mandibular third molar impaction and its relationship with distal caries in the adjacent mandibular second molars: A retrospective study

open access: yesSaudi Dental Journal
Background: Impacted third molars can cause significant challenges for dental health. While many of these impacted teeth remain asymptomatic, they can lead to dental caries.
Abrar K. Demyati
doaj   +1 more source

Concrescence of a Maxillary Second and Third Molar

open access: yesJournal of the California Dental Association, 2009
Concrescence is a rare dental anomaly that may be inadvertently diagnosed during a tooth extraction.While extracting a maxillary second and third molar, it became evident that the teeth were attached between the roots. Both teeth were extracted atraumatically and healing was uneventful.Concrescence may increase the likelihood of certain complications ...
openaire   +2 more sources

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

open access: yesAdvanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang   +6 more
wiley   +1 more source

Molar Heat Capacities and Standard Molar Enthalpy of Formation of 2-Amino-5-methylpyridine

open access: yes, 2008
Molar Heat Capacities and Standard Molar Enthalpy of Formation of 2-Amino-5 ...
张景楠, 谭志诚
core  

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Cementoblastoma Relating to Right Mandibular Second Primary Molar

open access: yesCase Reports in Dentistry, 2016
Cementoblastoma is a benign lesion of the odontogenic ectomesenchymal origin. It rarely occurs in primary dentition. This report describes a case of a cementoblastoma relating to the right mandibular second primary molar in a 7-year-old girl.
Sivakumar Nuvvula   +3 more
doaj   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

open access: yesAdvanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz   +4 more
wiley   +1 more source

Feasibility and Limitations of the Advanced Replica Process for Bioactive Glasses

open access: yesAdvanced Engineering Materials, EarlyView.
Periodic 3D‐printed Kelvin‐cell templates enable a controlled advanced replica process for fabricating highly porous glass lattices. Across P45K9, 45S5, and 13–93, material‐dependent differences in coating, burnout, and shrinkage lead to distinct strut morphologies, while comparable final porosities of 83%–88% are retained.
Swantje Funk   +4 more
wiley   +1 more source

Distalization of the mandibular first molar with clear aligners: a 3D finite element study

open access: yesFrontiers in Bioengineering and Biotechnology
IntroductionThis study aims to analyze the impact of varying initial positions of the mandibular first molar and attachment configurations on tooth movement by finite element analysis (FEA).MethodsA three-dimensional (3D) model was constructed, including
Fujia Kang   +15 more
doaj   +1 more source

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