The accuracy of prostheses affects clinical success and is, in turn, affected by the accuracy of the scanner and CAD programs. Thus, their accuracy is important. The first aim of this study was to evaluate the accuracy of an intraoral scanner with active triangulation (Cerec Omnicam), an intraoral scanner with a confocal laser (3Shape Trios), and an extraoral scanner with active triangulation (D810). The second aim of this study was to compare the accuracy of the digital crowns designed with two different scanner/CAD combinations. The accuracy of the intraoral scanners and extraoral scanner was clinically acceptable. Marginal and internal fit of the digital crowns fabricated using the intraoral scanner and CAD programs were inferior to those fabricated using the extraoral scanner and CAD programs.
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http://dx.doi.org/10.4012/dmj.2016-326 | DOI Listing |
Radiol Adv
October 2024
Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.
Purposes: The objective was to evaluate the accuracy of a novel CT dynamic angiographic imaging (CT-DAI) algorithm for rapid fractional flow reserve (FFR) measurement in patients with coronary artery disease (CAD).
Materials And Methods: This retrospective study included 14 patients (age 58.5 ± 10.
Bioengineering (Basel)
November 2024
Department of Prosthodontics, University of Medicine and Pharmacy "Victor Babes", B-dul Revolutiei 1989, No. 9, 300580 Timisoara, Romania.
Dentistry is steadily evolving along the digital pathway at a constant and sure pace. Intraoral scanners (IOSs) started to enhance the precision and trueness of the restorations, making prosthodontics treatment more predictable. The objective of this study was to compare the trueness and internal fit of the printed provisional veneers for 60 preparations with three different types of finish lines.
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December 2024
Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia.
Background: This study aims to perform a review by selecting, analyzing, and evaluating articles that discuss the accuracy of intraoral scanners (IOSs) in recording post space compared to conventional impression-making techniques.
Methods: The review question framed using the PITR framework (participant, index test, targeted condition, and reference standard) is as follows: What is the dimensional accuracy (T) of impressions made using intraoral scanners (I) for post space (P) compared to impressions made using conventional techniques and digitalized using extraoral scanners (R)? Four electronic databases were searched using pre-set keywords. The guidelines and strategies recommended by PRISMA formed the basis for planning, executing, and documenting this systematic review.
Echocardiography
January 2025
Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi, India.
Objective: Diastolic dysfunction (DD) is defined as impaired left ventricular (LV) relaxation, caused by structural or functional heart diseases. We sought to assess the role of cardiac CT angiography (CCTA) as a tool to evaluate LV DD in patients with normal EF using the diastolic expansion index (DEI), as compared to transthoracic echocardiography (TTE) as the gold standard.
Methods: Patients presenting with atypical chest pain with suspected coronary artery disease (CAD) and having a normal LV ejection fraction on TTE underwent CCTA using a dual source CT scanner.
J Prosthodont
January 2025
ITI Scholarship Center, Center for Implant, Esthetic and Innovative Dentistry, Indiana University School of Dentistry, Indianapolis, Indiana, USA.
Recent focus has shifted toward refining the soft tissue emergence profile to enhance aesthetics, support peri-implant health, and ensure long-term success. Traditionally, titanium stock healing abutments or chairside-customized abutments were used to shape peri-implant tissues and develop the emergence profile for implant-supported prostheses. However, advancements in digital dentistry now allow for more precise customization and increased treatment efficiency.
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