Results 11 to 20 of about 222,275 (261)

Accuracy between intraoral and extraoral scanning: Three-dimensional deviation and effect of distance between implants from two scanning methods

The Journal of Indian Prosthodontic Society, 2022
Aim: Evaluate the accuracy between the intraoral and extraoral scanning regarding the three dimensional (3D) deviation and distances between the implants, through 2 scanning methods. Settings and Design: An in vitro study.
Ana Larisse Carneiro Pereira, Henrique Vieira Melo Segundo, Luiz Carlos Alves Júnior, Adriano Rocha Germano, Adriana Da Fonte Porto Carreiro   +4 more
doaj   +1 more source

Three-Dimensional Quantitative Assessment of Pedicle Screw Accuracy in Clinical Utilization of a New Robotic System in Spine Surgery: A Multicenter Study [PDF]

Neurospine, 2023
Objective The objective of this study was to evaluate the accuracy of pedicle screw placement in patients undergoing percutaneous pedicle screw fixation with robotic guidance, using a newly developed 3-dimensional quantitative measurement system.
Byeong-Jin Ha, Jong-Min Lee, Seon-Jin Yoon, Byung-Kwan Kim, Junseok Lee, Suhun Lee, Seungjae Ryu, Yongyeob Cha, Sungteac Hwang, Donggi Woo, Chang Kyu Lee, Dong Ah Shin, Yoon Ha, Sung Uk Kuh, Keung Nyun Kim, Dongwuk Son, Seong Yi   +16 more
doaj   +1 more source

Linear Accuracy of Full-Arch Digital Models Using Four Different Scanning Methods: An In Vitro Study Using a Coordinate Measuring Machine

Applied Sciences, 2020
Improving the accuracy of the digital model is essential for the digitalization of the dental field. This study introduced a novel method of objective accuracy evaluation of digitized full dental arch model using coordinate measuring machine (CMM).
Young Hyun Kim, Sang-Sun Han, Yoon Joo Choi, Chang-Woo Woo   +3 more
doaj   +1 more source

Evaluation of the linear and volumetric measuring changes in different positions in CBCT

Clinical and Experimental Dental Research, 2023
Objectives The effect of head position on reproducibility of volumetric measurements on Cone‐beam computed tomography (CBCT) scans has not been evaluated before.
Samira Fani, Ehsan Moudi, Sina Haghanifar, Seyedali Seyedmajidi, Arash Poursattar‐Bejeh Mir   +4 more
doaj   +1 more source

Measurement accuracy of a computer-assisted three-dimensional analysis and a conventional two-dimensional method [PDF]

The Angle Orthodontist, 2011
Abstract Objective: To determine the differences between manual and cephalometric measurements on different sections of the human skull, which were obtained using computer-assisted three-dimensional (3D) analysis and conventional two-dimensional (2D) techniques.
Huseyin, Olmez, Serkan, Gorgulu, Erol, Akin, Ali Osman, Bengi, Ibrahim, Tekdemir, Fatih, Ors   +5 more
openaire   +2 more sources

Trueness of cone-beam computed tomography-derived skull models fabricated by different technology-based three-dimensional printers

BMC Oral Health, 2023
Background Three-dimensional (3D) printing is a novel innovation in the field of craniomaxillofacial surgery, however, a lack of evidence exists related to the comparison of the trueness of skull models fabricated using different technology-based ...
Xiaotong Wang, Sohaib Shujaat, Eman Shaheen, Eleonora Ferraris, Reinhilde Jacobs   +4 more
doaj   +1 more source

Comparison of the Efficacy of Digital Caliper and a Newly Designed Digital Bone Gauge for Measurement of Edentulous Alveolar Ridge Width

Journal of Dental School, 2019
Objectives: An efficient, safe, affordable and easily accessible measuring instrument for quantitative assessment of bone prior to dental implant placement enables more accurate treatment planning.
Reza Amid, Kasra Rahimipour, Mahshid Namdari, Mahdi Kadkhodazadeh   +3 more
doaj   +1 more source

Does vaporized hydrogen peroxide sterilization affect the geometrical properties of anatomic models and guides 3D printed from computed tomography images?

3D Printing in Medicine, 2021
Background Material extrusion is used to 3D print anatomic models and guides. Sterilization is required if a 3D printed part touches the patient during an intervention. Vaporized Hydrogen Peroxide (VHP) is one method of sterilization.
Mauricio Toro, Aura Cardona, Daniel Restrepo, Laura Buitrago   +3 more
doaj   +1 more source

Accuracy of Digital Impression Taking Using Intraoral Scanner Versus the Conventional Technique

Frontiers in Dentistry, 2021
Objectives: Intraoral scanners have shown promising results when used as an adjunct or alternative to conventional impression techniques. This study compared the accuracy of digital impression taking using an intraoral scanner versus the conventional ...
Arash Zarbakhsh, Ezatollah Jalalian, Nazanin Samiei, Mohammad Hossein Mahgoli, Hadi Kaseb Ghane   +4 more
doaj   +1 more source

Dimensional Accuracy of Polyvinyl Siloxane Impression Materials Considering Impression Techniques– A Literature Review

Journal of Dental School, 2019
Objectives Impression accuracy is the main determinant of the fit, form and function of prosthetic restorations. Polyvinyl siloxane (PVS) is the material of choice in most clinical situations. The purpose of this paper is to provide an up-to-date review
Nadia Nouri, Parviz Amini, Reza Amini, Mohammad Mousavi, Sajad Raeisi Estabragh, Abdola Ebrahimi   +5 more
doaj   +1 more source