Results 41 to 50 of about 4,561,615 (259)

Registration Workflows Accuracy For Robot-Assisted Osteotomy In Endodontic Microsurgery

International Dental Journal
Aim or purpose: This study evaluated the accuracy of robot-assisted osteotomy in endodontic microsurgery using different registration workflows. Materials and methods: Twelve printed mandibular jaw models were divided into 4 group.
Yuchen Liu, Yimin Zhao, Shizhu Bai, Chen Liu   +3 more
doaj   +1 more source

Virtual reality as a versatile tool for research, dissemination and mediation in the humanities

Virtual Archaeology Review, 2021
The VESPACE project aims to revive an evening of theatre at the Foire Saint-Germain in Paris in the 18th century, by recreating spaces, atmospheres and theatrical entertainment in virtual reality.
Paul François, Jeffrey Leichman, Florent Laroche, Françoise Rubellin   +3 more
doaj   +1 more source

Autogenous Tooth Transplantation Assisted By An Autonomous Dental Surgical Robot

International Dental Journal
Introduction: Autogenous tooth transplantation involves transferring a tooth within the same patient, requiring precise socket preparation that is technically challenging. This case demonstrates a robot-assisted technique to improve precision.
Chen Liu, Yimin Zhao, Shizhu Bai, Rui Hou   +3 more
doaj   +1 more source

A digital high-dynamic-range CMOS image sensor with multi-integration and pixel readout request [PDF]

, 2007
A novel principle has been developed to build an ultra wide dynamic range digital CMOS image sensor. Multiple integrations are used to achieve the required dynamic.
Guilvard, Alexandre, Magnan, Pierre, Martin-Gonthier, Philippe, Segura, Josep   +3 more
core   +1 more source

Evaluation of the accuracy of seven intraoral scanners for the full dentate and partially edentulous complete-arch mandibular casts: An in vitro comparison

Heliyon
Statement of problem: Intraoral scanners (IOSs) are widely used in dentistry, providing high accuracy in short-range scanning. Nevertheless, when scanning the full dental arch, it remains a challenge. Furthermore, there is a lack of studies reporting the
Xin Wang, Fang Zhang, Dan Ma, Xiaolan Ye, Xiaojuan Zheng, Ruifang Ren, Nan Ren, Shizhu Bai   +7 more
doaj   +1 more source

Polyetheretherketone split post and core for restoration of multirooted molar with insufficient dental tissue remnants by digital techniques: a case report and 3-year follow up

BMC Oral Health
Background Multi-rooted teeth with extensive dental defects often face challenges in stability and biomechanical failure. High-performance polymer PEEK materials, with properties closer to dentin, show promise in reducing stress concentration and ...
Xin Wang, Sheng Zhong, Dan Ma, Chen Liu, Yuchen Liu, Yimin Zhao, Shizhu Bai   +6 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Clinical Outcome and Predictors of Customized Polyetheretherketone Post‐and‐Cores for Residual Root and Crown: A Retrospective Study

Clinical and Experimental Dental Research
Objectives This retrospective, non‐interventional study aimed to evaluate the longevity and factors influencing the success of custom‐fabricated polyetheretherketone (PEEK) post‐and‐cores in endodontically treated teeth (ETT). Material and Methods During
Xin Wang, Chen Liu, Yuchen Liu, Dan Ma, Ruifang Ren, Mingxing Zhang, Jiawen Guo, Yimin Zhao, Dongmei Li, Shizhu Bai   +9 more
doaj   +1 more source

Photogrammetry for digital reconstruction of railway ballast particles – A cost-efficient method

Construction and Building Materials, 2018
Ballast aggregate is a natural material widely used in railway lines. Its mechanical properties and particle geometry are meticulously defined using well-established standards and characterisation procedures.
A. Paixão, R. Resende, E. Fortunato
semanticscholar   +1 more source

A novel image reconstruction method applied to deep Hubble Space Telescope Images [PDF]

, 1997
We have developed a method for the linear reconstruction of an image from undersampled, dithered data, which has been used to create the distributed, combined Hubble Deep Field images -- the deepest optical images yet taken of the universe. The algorithm,
Fruchter, Andrew, Hook, Richard
core   +3 more sources