563 Hits in 7.3 sec

Three-dimensional reconstruction of systematic histological sections: application to observations on palatal shelf elevation

Weilong Liu, Xiaoming Wang, Yinuo Wang, Yahong Wang, Jing Zhang, Bing Shi, Chenghao Li
2021 International Journal of Oral Science  
It has been estimated that more than 90% of isolated cleft palate is caused by defects associated with the elevation process.  ...  We established multiplanar sections of the palate and tongue in coronal and sagittal directions, and further performed 3D reconstruction to observe the morphological interaction and connection between  ...  Finally, 3D animations displayed the PSs and tongue models by 3D Studio Max (Fig. 3 4 Overall workflow of the digital 3D reconstruction of the palatal shelves and tongue Fig. 1 Fig. 2 12 green arrows  ... 
doi:10.1038/s41368-021-00122-8 pmid:34039957 fatcat:ogaksufhanb25ehpu7zavhst2u

Digital Impressions in Implant Dentistry: A Literature Review

Simone Marques, Paulo Ribeiro, Carlos Falcão, Bernardo Ferreira Lemos, Blanca Ríos-Carrasco, José Vicente Ríos-Santos, Mariano Herrero-Climent
2021 International Journal of Environmental Research and Public Health  
A Medline, PubMed and EBSCO Host databases search, complemented by a hand search, was performed in order to select relevant reports regarding the appliance of digital impressions in implant dentistry.  ...  The search subject included but was not limited to accuracy of digital impressions in implant dentistry, digital scanning techniques, the design and material of the ISBs, and the depth and angulation of  ...  From #26 to #16, the scanning protocol had as its starting point the occlusal-palatal ISB surface, maintaining an approximate 45 • inclination of the IOS tip and performing a wave movement in the anterior  ... 
doi:10.3390/ijerph18031020 pmid:33498902 fatcat:ef2gxsjthvb4pajdbgrrep7f4q

In vivo cross-sectional imaging of the phonating larynx using long-range Doppler optical coherence tomography

Carolyn A. Coughlan, Li-dek Chou, Joseph C. Jing, Jason J. Chen, Swathi Rangarajan, Theodore H. Chang, Giriraj K. Sharma, Kyoungrai Cho, Donghoon Lee, Julie A. Goddard, Zhongping Chen, Brian J. F. Wong
2016 Scientific Reports  
Functional imaging of vocal fold mechanics can be accomplished using stroboscopic methods or high-speed digital imaging, and both facilitate analysis of the vocal fold mucosal wave propagation during phonation  ...  In vivo high-resolution imaging of the vocal fold would be of tremendous value for both clinicians and scientists.  ...  Acknowledgements The work was supported in part by grants obtained from the National Institutes of Health (P41EB015890, R01HL105215, R01HL125084, R01HL127271, R43HD071701, R44CA177064) and the Arnold and  ... 
doi:10.1038/srep22792 pmid:26960250 pmcid:PMC4785353 fatcat:lymeokgusvfuvjpqiod42rfbhe

3D Scanning, Imaging, and Printing in Orthodontics [chapter]

Emilia Taneva, Budi Kusnoto, Carla A. Evans
2015 Issues in Contemporary Orthodontics  
The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the  ...  Acknowledgements This material is based on research sponsored by the Air Force Surgeon General's Office under agreement number FA7014-09-2-0003. The U.S.  ...  Micron-scale measurements of distance and microstructure are obtained from backscattered or backreflected light waves in real time and in vivo.  ... 
doi:10.5772/60010 fatcat:abkdn4owfrbftk64lml7bvornq

Direct Digitalization Devices in Today's Dental Practice: Intra Oral Scanners

Çağrı URAL, Necati KALELİ
2021 Journal of Experimental and Clinical Medicine  
The digital workflow includes some steps, such as data acquisition, digitalization, designing, and subsequently manufacturing by using digital devices.  ...  In this process, acquiring the images from patients mouth, which is named computer-aided impression (CAI), is the first step of the digital workflow and named as digitalization.  ...  The most used and advised strategy is linear movement of the camera over all the occlusal surfaces followed by scanning of buccal and palatal surfaces.  ... 
doi:10.52142/ fatcat:iwm6sak3s5fftchqc2tlwntxoy

Surface kinematic and depth-resolved analysis of human vocal folds in vivo during phonation using optical coherence tomography

Giriraj K. Sharma, Lily Y. Chen, Lidek Chou, Christopher Badger, Ellen Hong, Swathi Rangarajan, Theodore H. Chang, William B. Armstrong, Sunil P. Verma, Zhongping Chen, Ram Ramalingam, Brian J.-F. Wong
2021 Journal of Biomedical Optics  
The human vocal fold (VF) oscillates in multiple vectors and consists of distinct layers with varying viscoelastic properties that contribute to the mucosal wave.  ...  Office-based and operative laryngeal endoscopy are limited to diagnostic evaluation of the VF epithelial surface only and are restricted to axial-plane characterization of the horizontal mucosal wave.  ...  Research reported in this publication was also supported by funding from OCT Medical Imaging, Inc.  ... 
doi:10.1117/1.jbo.26.8.086005 pmid:34414705 pmcid:PMC8374544 fatcat:7zkhmrnzjfe7fpgvcoy4dzw4q4


Sheela Kannan, Chalakuzhiyil Abraham Mathew, Roseline Savarimuthu Paulraj
2020 Zenodo  
Digital impressions with IOS is likely going to be a routine procedure in dentistry in the near future.  ...  Intraoral scanners (IOSs) are devices used for capturing direct optical impressions in dentistry. IOS eliminates the errors that are encountered with the conventional impression making procedures.  ...  the scan path and above all,to close it again by crossing over the occlusal surface and returning to the starting point of the scan movement.The capture of structureless areas and or in the areas with  ... 
doi:10.5281/zenodo.4307635 fatcat:zvrpn27mcjdnzjzwhrbxqb4nii

Recent Advancements in Diagnostic Aids in Orthodontics - A Review

Ashish Kakadiya, Ragni Tandon, Aftab Azam, Rohit Kulshrestha, Madhvi Bhardwaj
2017 SM Dentistry Journal  
Gr up SM Copyright  Kulshrestha R Sure Smile Recent advances in computer management 3D imaging of dentition, manipulation of complex 3D data, and robotics have resulted in a new approach to treatment  ...  The use of computers in cephalometry has made it easier to view and measure various readings.  ...  Clinical Procedures [29] The process begins with a 3D scan of patients dentition using the oro-scanner (oro matrix) a hand held scanner, this captures in real time in vivo images of dentition.  ... 
doi:10.36876/smd.1016 fatcat:6y6ynt64vfdihosq4ntw6nkwi4

Congruence between the meshes of a combined healing abutment-scan body system acquired with four different intraoral scanners and the corresponding library file: an in vitro analysis

Mustafa Borga Donmez, Vinicius Rizzo Marques, Gülce Çakmak, Hakan Yilmaz, Martin Schimmel, Burak Yilmaz
2021 Journal of Dentistry  
Scans of the tested intraoral scanners may result in crowns with similar positional accuracy, given the similarities in congruence of their scans with the library file.  ...  A CHA-SB was fixed to an implant at the right first molar position in a dentate mandibular model and digitized by using 4 different intraoral scanners (IOSs) [TRIOS 3 (T3), Omnicam (OC), Primescan (PS)  ...  Acknowledgment All other authors have no conflicts of interest to declare. The authors do not have any financial interest in the companies whose materials are included in this article.  ... 
doi:10.1016/j.jdent.2021.103938 pmid:34942277 fatcat:6rqy567jgfhw5itxeei6g2jbfu

Functional imaging of mucociliary phenomena

M. Ryser, A. Burn, Th. Wessel, M. Frenz, J. Rička
2007 European Biophysics Journal  
Using an enhanced reflection contrast, we detect simultaneously the wave-like modulation of the mucus surface by the underlying ciliary activity and the transport of particles embedded in the mucus layer  ...  In particular, this analysis indicates that the synchronization is restricted to patches with varying directions of wave propagation, but the transport direction is strongly correlated with the mean direction  ...  Acknowledgments The work was partly supported by the Swiss National Science Foundation. We thank Patrick Stoller for kindly proofreading the manuscript.  ... 
doi:10.1007/s00249-007-0153-3 pmid:18027008 fatcat:hgu2qiil2zfkjmubksf2xml364

Intraoral Scanner Technologies: A Review to Make a Successful Impression

Raphaël Richert, Alexis Goujat, Laurent Venet, Gilbert Viguie, Stéphane Viennot, Philip Robinson, Jean-Christophe Farges, Michel Fages, Maxime Ducret
2017 Journal of Healthcare Engineering  
The last section is dedicated to the accuracy of files and of the intermaxillary relationship registered with IOS as the rendering of files in the graphical user interface is often misleading.  ...  An important aspect highlighted in this review is the reduction in the volume of hardware which has led to an increase in the importance of software-based technologies.  ...  The surface reconstruction can be achieved with a compilation of images, a video that can take several images per second in a continuous data flow, or per wave analysis [11, 12] .  ... 
doi:10.1155/2017/8427595 pmid:29065652 pmcid:PMC5605789 fatcat:fd3dde47jfbxhixlugj5cauwei

Accuracy of Different Head Movements of Intraoral Scanner in Full Arch of Both Maxilla and Mandible

Chun-Wei Feng, Chun-Cheng Hung, Jen-Chyan Wang, Ting-Hsun Lan
2021 Applied Sciences  
The data were recorded and deviations of both occlusal and B-L sides were compared, with statistical analysis being performed by one-way analysis of variance (ANOVA) and post hoc comparisons with Tukey  ...  The same scan path with six head movements (Linear, Circle, Wave, 8-figure, S-figure, and A-P) were designed to scan 10 times per jaw, and a total of 120 scan files were then compared with reference files  ...  Digital data acquisition could be obtained via an intraoral scanner (IOS) or desktop scanner, while the pioneering IOS device used in clinical dentistry was the CEREC system in 1987 [1] .  ... 
doi:10.3390/app11178140 fatcat:3gbu2g2savhy5bsxcg4pzfllwe

Effect of a Er, Cr:YSGG laser and a Er:YAG laser treatment on oral biofilm-contaminated titanium

So-Hyun Park, Ok-Joon Kim, Hyun-Ju Chung, Ok-Su Kim
2020 Journal of Applied Oral Science  
The total bacterial load and the viability of adherent bacteria were quantified by live or dead cell labeling with fluorescence microscopy.  ...  Complete plaque removal was estimated using naked-eye and the time taken was recorded; the residual plaque area was measured and the morphological alteration of the specimen surface was observed by scanning  ...  As long as we know, we are the first to report the effectiveness of Er.Cr:YSGG laser in compared to Er:YAG laser in removing in vivo biofilms on titanium surface by comparing quantitative or qualitative  ... 
doi:10.1590/1678-7757-2020-0528 pmid:33263649 fatcat:3sxajesppvctfd6zmtne5ggeb4

Comparison of the marginal fit of milled yttrium stabilized zirconium dioxide crowns obtained by scanning silicone impressions and by scanning stone replicas

Estefanía Aranda Yus, Josep Maria Anglada Cantarell, Antonio Miñarro Alonso
2018 The Journal of Advanced Prosthodontics  
Three predetermined points were analyzed in each side of the crown (Mesial, Distal ,Vestibular and Palatal), and the marginal fit was evaluated with SEM (×600).  ...  To determine the discrepancy in monolithic zirconium dioxide crowns made with computer-aided design and computer-aided manufacturing (CAD/CAM) systems by comparing scans of silicone impressions and of  ...  The study was conducted in accordance with the Declaration of Helsinki and was approved by a local ethics committee.  ... 
doi:10.4047/jap.2018.10.3.236 pmid:29930794 pmcid:PMC6004355 fatcat:cn2aibbtyzdornvsg7qwia6wwq

Advanced endoscopic imaging technologies for in vivo cytological examination of gastrointestinal tract lesions: State of the art and proposal for proper clinical application

Antonello Forgione, SalmanYousuf Guraya
2013 Journal of Microscopy and Ultrastructure  
Shaista Salman Guraya, Assistant Professor of Radiology Taibah University Saudi Arabia, in designing and crafting the figures in the manuscript.  ...  Acknowledgement The authors highly appreciate and value the contributions of Dr.  ...  of intestinal epithelial cells in vivo, as compared with formalin-fixed biopsy tissue, influenced by the absence of fixation artifacts.  ... 
doi:10.1016/j.jmau.2013.11.001 fatcat:6fir7jdeu5dkhe4cqta2pqbxpm
« Previous Showing results 1 — 15 out of 563 results