Results 1 to 10 of about 490,956 (310)

Towards Understanding the New Three-dimensional Accuracy of the ASPRS Accuracy Standards

Photogrammetric Engineering & Remote Sensing
openaire   +1 more source

Three dimensional evaluation of accuracy of bracket positioning

Journal of Pharmacy and Bioallied Sciences, 2023
Introduction: The success of orthodontic treatment depends on accurate bracket placement, so researchers are constantly exploring new direct and indirect bonding methods with the help of cutting-edge imaging technologies like cone beam computed ...
Kapil Kamal Kishor Fafat, Deepali Jain, Susmita Kumari Pandit, Rythm Kharbanda, Pragya Trivedy, Ekta Gupta   +5 more
doaj   +3 more sources

Study of Influence of Printing Speed and Layer Height on Dimensional Accuracy of 3D-Printed Carbon Fiber-Reinforced Polyamide Parts [PDF]

Engineering Proceedings
Engineering parts have increasingly higher requirements for geometric accuracy and shape deviation. In 3D printing, optimal physical and mechanical properties and dimensional accuracy are often sought, as parts produced with this technology are ...
Valeri Bakardzhiev, Sabi Sabev, Konstantin Chukalov   +2 more
doaj   +2 more sources

Dimensional Accuracy of Nanoparticles Reinforced Denture Base Materials [PDF]

Al-Rafidain Dental Journal
Aims: The study aims to evaluate the effect of the addition of salinized zirconium oxide (ZrO2) and silicon oxide (SiO2) nanoparticles at two concentrations (1% and 3% by weight) on the dimensional accuracy of the heat-cured denture base material ...
Ghadaq M. Younis, Radhwan H. Hasan
doaj   +2 more sources

Horizontal dimensional accuracy prediction of selective laser melting

Materials & Design, 2018
A theoretical model has been proposed to predict the horizontal dimensional accuracy of selective laser melting (SLM) in this paper. It is found that the horizontal dimensional deviation of SLM consists of two parts. The first part is related to the mode
Luo Zhang, Shasha Zhang, Haihong Zhu, Zhiheng Hu, Guoqing Wang, Xiaoyan Zeng   +5 more
doaj   +3 more sources

Multi-Stage micro-CT–based dimensional accuracy assessment of a voronoi-based patient-specific cranial implant fabricated by electron beam melting [PDF]

Frontiers in Medical Technology
IntroductionPatient-specific cranial implants fabricated using powder bed fusion technologies require rigorous dimensional validation to ensure reliable digital-to-physical translation, particularly when complex architectures are employed.
Horațiu Rotar, Horațiu Rotar, Horațiu Rotar, Cosmin Cosma, Cosmin Cosma, Nicolae Bâlc, Nicolae Bâlc, Seong-Gon Kim, Daniel Ostaș, Daniel Ostaș   +9 more
doaj   +2 more sources

Dimensional Accuracy and Short-Term Stability of Orthodontic Resin-Printed Models: A Closed Dental System Compared with Commercial Desktop Workflows [PDF]

Dentistry Journal
Background/Objectives: Resin 3D printing is widely used to fabricate orthodontic diagnostic models, but the practical performance of commercial desktop workflows compared to dental-certified workflows is still debated. This study compared the dimensional
Pilar España-Pamplona, Davide Gentile, Adrian Curto-Aguilera, Riccardo Aiuto, Milagros Adobes-Martin, Daniele Garcovich   +5 more
doaj   +2 more sources

Experimental Investigation and Statistical Optimization of Dimensional Accuracy and Microhardness in Fiber Laser Cutting of Low-Carbon Steel Sheets

Journal of Manufacturing and Materials Processing
This study investigates the influence of process parameters on dimensional accuracy and microhardness in fiber laser cutting of low-carbon steel. A full factorial design of experiments (DOE) with three factors—cutting speed, focal position, and assist ...
Iveta Čačková, Viliam Čačko, Bálint Ferenczi, Alena Brusilová, Ľubomír Šooš, Shane Shabu   +5 more
doaj   +2 more sources

EVALUATION OF DIMENSIONAL ACCURACY, FLOW, AND GELATION TIME OF 1.0% CHITOSAN INCORPORATED IRREVERSIBLE HYDROCOLLOID IMPRESSION MATERIAL [PDF]

Euromediterranean Biomedical Journal, 2022
In dentistry, irreversible hydrocolloid impression materials are frequently utilised for making both preliminary and final impressions. Dental professionals are more likely to become contaminated by these materials. According to studies, using 1.0% water-
Rama Krishna Alla
doaj   +1 more source

Linear Dimensional Change and Accu-racy of Fit of Positive Pressure Thermo–Formed Prosthodontic Materials [PDF]

Al-Rafidain Dental Journal, 2012
To determine the dimensional accuracy of thermoformed dental base plates. Materials and methods: Six different types of thermoformed materials were used.
Zeina M Ahmad , Ahmed A Al–Ali , Omar A Sheet   +2 more
doaj   +1 more source