Results 131 to 140 of about 295,086 (332)

Assessment of Marginal Fit and Accuracy of Crowns Fabricated Using CADCAM Milling and 3D Printing Technology

open access: yesJournal of Pharmacy and Bioallied Sciences
Background: This study evaluates the accuracy of marginal and internal fits of dental crowns fabricated using CAD/CAM milling and 3D printing technologies. The hypothesis posited significant differences between these techniques, confirmed by data showing
M.V. Sunil Kumar   +5 more
doaj   +1 more source

Coordinative Ring‐Opening Polymerization of Limonene Carbamate towards Phosgene‐ and Isocyanate‐Free Polyurethane

open access: yesAngewandte Chemie International Edition, Accepted Article.
This study presents a phosgene‐ and isocyanate‐free route for the synthesis of polyurethanes using (R)‐limonene as a bio‐based starting material. The synthesis of the cyclic limonene‐based carbamate monomer LU is achieved in high yields using dimethyl carbonate as a sustainable, less hazardous phosgene surrogate and is verified by NMR, SC‐XRD, ESI‐MS ...
Jonas Futter   +4 more
wiley   +1 more source

Comparison of the Influence of Crown to Implant Ratio on Marginal Bone Loss around Implants in Posterior Areas of the Maxilla and Mandible

open access: yesپزشکی بالینی ابن سینا, 2016
Introduction & Objective: Due to the patients’ growing interest in the use of dental implants, medical staff should be completely aware of treatment success and prognostic factors to prevent failures.
M. Khoshhal   +3 more
doaj  

A Joyful Journey: Tungsten(VI) and Tungsten(V) Fluorides Meet N‐Heterocyclic Carbenes and Cyclic (Alkyl)(Amino)Carbenes

open access: yesAngewandte Chemie International Edition, EarlyView.
The first tungsten(VI) fluoride complexes coordinated with N‐heterocyclic carbenes and cyclic (alkyl)(amino) carbenes were synthesized and characterized. Reduction of these seven‐coordinated complexes afforded rare octahedral tungsten(V) fluoride complexes, a dinuclear fluoride‐bridged complex (cAACMe), or a seven‐coordinated (cAACMe) bis‐carbene ...
Melanie Riethmann   +7 more
wiley   +1 more source

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