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Journal articles on the topic 'Three-dimensional scanner'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Tangthaweesuk, Nichakun, and Somchart Raocharernporn. "The accuracy of three-dimensional facial scan obtained from three different 3d scanners." PLOS One 20, no. 5 (2025): e0322358. https://doi.org/10.1371/journal.pone.0322358.

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This study aimed to compare the accuracy (trueness and precision) and reproducibility of three 3D facial scanning systems: a laser scanner (Planmeca Proface), a dual-structured light scanner (EinScan H2), and a smartphone application (EM3D Scanner). Thirty subjects with skeletal deformities scheduled for orthognathic surgery were scanned using these systems, and the resulting 90 3D facial scans were compared with facial surfaces segmented from CBCT scans. Surface discrepancies were measured using root mean square (RMS) values across five facial aesthetic areas (cheeks, nasal, perioral, and men

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Carvalho, William S., Viviane de S. M. Almeida, Leonardo Provedel, Anderson da S. Maciel, and Viviane A. Sarmento. "Volumetric Evaluation of 3D Models Generated by Different Surface Treatment Protocols." European Journal of Dental and Oral Health 3, no. 5 (2022): 5–8. http://dx.doi.org/10.24018/ejdent.2022.3.5.229.

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The objective of this study was to compare the volume of three-dimensional (3D) models generated by different scanners and computational modeling protocols. Eight dry mandibles were scanned by five different computed tomography (CT) scanners and by a 3D-scanner. Three-dimensional models were generated, received different surface treatment processes, and the final volume of the 3D models was compared. The results show that there was no significant difference among the volume of the 3D models generated by the different CT scanners and surface treatment techniques, however, the model volume gener

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Akiyama, Jin, Yuan Zong, Naoki Shinada, Taro Suzuki, and Yoshiharu Amano. "High-Resolution Point Cloud Registration Method for Three-Dimensional Piping Measurements." Journal of Robotics and Mechatronics 35, no. 6 (2023): 1655–62. http://dx.doi.org/10.20965/jrm.2023.p1655.

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In this study, we propose a method for generating highly accurate high-density point clouds of piping facilities using an unmanned aerial vehicle (UAV) laser scanner and a handheld laser scanner. The point cloud for each scanline measured by the UAV scanner is repositioned on the piping axis, and the handheld scanner’s 3D point cloud is subsequently registered so that the center axis of the piping coincides with the UAV point cloud as a reference. The method proposed in this study was used to accurately reconstruct linear piping measured in high winds, which can easily deteriorate measurement

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Kumar, Lakshay, and Subhabrata Maiti. "Comparative evaluation of the accuracy of three different three-dimensional facial scanning systems: An observational crossover study." Journal of Indian Prosthodontic Society 25, no. 3 (2025): 220–28. https://doi.org/10.4103/jips.jips_51_25.

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Aim: Facial imaging technology has become a pivotal tool in modern medical practice, particularly within fields such as maxillofacial prosthodontics, orthodontics, and smile design. The creation of digital twins, or virtual patients, enhances diagnostic accuracy, aids in treatment planning, and improves outcome prediction. The aim of the study was to assess the accuracy of various facial scanners, determine overall accuracy of each scanner, and identify which scanner demonstrates superior accuracy in specific facial regions. Settings and Design: An observational crossover study. Materials and

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Borodina, Irina D., Leon S. Grigoryants, Magammed A. Gadzhiev, et al. "Comparative evaluation of the accuracy of the dental arch display using modern intraoral three-dimensional scanners." Russian Journal of Dentistry 26, no. 4 (2022): 287–97. http://dx.doi.org/10.17816/1728-2802-2022-26-4-287-297.

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BACKGROUND: At present, modern dentists used dental intraoral three-dimensional (3D) scanners routinely in their daily work. Obtaining an optical 3D image of the teeth and dentition helps avoid errors at the stage of obtaining traditional silicone impressions and significantly reduces the level of discomfort during dental procedures. Intraoral scanner systems are commercially available today. Despite their advantages over traditional silicone impressions, the accuracy of the optical impressions obtained during total and subtotal prosthetics on the upper and lower jaw are still questionable.&#x

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Cho, Ran-Yeong, Soo-Hwan Byun, Sang-Min Yi, et al. "Comparative Analysis of Three Facial Scanners for Creating Digital Twins by Focusing on the Difference in Scanning Method." Bioengineering 10, no. 5 (2023): 545. http://dx.doi.org/10.3390/bioengineering10050545.

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Background: Multi-dimensional facial imaging is increasingly used in hospital clinics. A digital twin of the face can be created by reconstructing three-dimensional (3D) facial images using facial scanners. Therefore, the reliability, strengths, and weaknesses of scanners should be investigated and approved; Methods: Images obtained from three facial scanners (RayFace, MegaGen, and Artec Eva) were compared with cone-beam computed tomography images as the standard. Surface discrepancies were measured and analyzed at 14 specific reference points; Results: All scanners used in this study achieved

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Ahdi Rezaeieh, Sasan, Ali Zamani, Konstanty Bialkowski, Graeme Macdonald, and Amin Abbosh. "Three-Dimensional Electromagnetic Torso Scanner." Sensors 19, no. 5 (2019): 1015. http://dx.doi.org/10.3390/s19051015.

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A three-dimensional (3D) electromagnetic torso scanner system is presented. This system aims at providing a complimentary/auxiliary imaging modality to supplement conventional imaging devices, e.g., ultrasound, computerized tomography (CT) and magnetic resonance imaging (MRI), for pathologies in the chest and upper abdomen such as pulmonary abscess, fatty liver disease and renal cancer. The system is comprised of an array of 14 resonance-based reflector (RBR) antennas that operate from 0.83 to 1.9 GHz and are located on a movable flange. The system is able to scan different regions of the ches

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Mutwalli, Hussam, Michael Braian, Deyar Mahmood, and Christel Larsson. "Trueness and Precision of Three-Dimensional Digitizing Intraoral Devices." International Journal of Dentistry 2018 (November 26, 2018): 1–10. http://dx.doi.org/10.1155/2018/5189761.

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Aim. To measure the trueness and precision under repeatable conditions for different intraoral scanners (IOSs) when scanning fully edentulous arch with multiple implants. Materials and Methods. Three IOSs and one industrial scanner were used to scan one edentulous master cast containing five implant scan bodies and three spheres. The cast was scanned thirty times with each scanner device. All scans were analyzed in the inspect software, and three-dimensional locations of the implants and the interarch distance between the spheres were measured. The values were compared to measurements made wit

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Lee, Keun Ho, Sung Jae Kim, Yong Ho Cha, Jae Lim Kim, Dong Kyu Kim, and Sang Jun Kim. "Three-dimensional printed prosthesis demonstrates functional improvement in a patient with an amputated thumb: A technical note." Prosthetics and Orthotics International 42, no. 1 (2016): 107–11. http://dx.doi.org/10.1177/0309364616679315.

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Background and Aim: Three-dimensional printer is widely used in industry, biology, and medical fields. We report a finger prosthesis produced by a three-dimensional scanner and printer for a 67-year-old man with a right thumb amputation above the metacarpophalangeal joint. Technique: His right amputated and left intact hands were scanned with a three-dimensional scanner, and the left-hand image was rotated to the right side to design the right thumb prosthesis. The designed prosthesis was printed with a three-dimensional printer using the fused filament fabrication output system. Discussion: T

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Yanakiev, Spartak, and Mariana Dimova-Gabrovska. "Dimensional Accuracy Assessment of 3D-Printed Edentulous Jaw Models: A Comparative Analysis Using Three Laboratory Scanners." Materials 18, no. 14 (2025): 3323. https://doi.org/10.3390/ma18143323.

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The dimensional accuracy of 3D-printed edentulous jaw models is critical for successful prosthetic treatment outcomes. This study investigated the accuracy of 3D-printed working models of a completely edentulous jaw through comparative analysis of digital images generated by three laboratory scanners. A reference plaster model of a mandibular edentulous arch was digitized and used to produce ten resin models via digital light processing (DLP) technology. Each model was scanned using three different laboratory scanners: AutoScan-DS-EX, AutoScan-DS-EX Pro(H), and Optical 3D Scanner Vinyl. Digita

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Huang, Yunbao, and Xiaoping Qian. "A Dynamic Sensing-and-Modeling Approach to Three-Dimensional Point- and Area-Sensor Integration." Journal of Manufacturing Science and Engineering 129, no. 3 (2006): 623–35. http://dx.doi.org/10.1115/1.2714585.

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The recent advancement of 3D non-contact laser scanners enables fast measurement of parts by generating a huge amount of coordinate data for a large surface area in a short time. In contrast, traditional tactile probes in the coordinate measurement machines can generate more accurate coordinate data points at a much slower pace. Therefore, the combination of laser scanners and touch probes can potentially lead to more accurate, faster, and denser measurements. In this paper, we develop a dynamic sensing-and-modeling approach for integrating a tactile point sensor and an area laser scanner to i

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Mezei, Adrián, and Tibor Kovács. "Curvature Adaptive 3D Scanning Transformation Calculation." Periodica Polytechnica Electrical Engineering and Computer Science 62, no. 4 (2018): 107–16. http://dx.doi.org/10.3311/ppee.11540.

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Three-dimensional objects can be scanned by 3D laser scanners that use active triangulation. These scanners create three-dimensional point clouds from the scanned objects. The laser line is identified in the images, which are captured at given transformations by the camera, and the point cloud can be calculated from these. The hardest challenge is to construct these transformations so that most of the surface can be captured. The result of a scanning may have missing parts because either not the best transformations were used or because some parts of the object cannot be scanned. Based on the

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Rudari, Michele, Joseph Breuer, Hannes Lauer, et al. "Accuracy of Three-dimensional Scan Technology and Its Possible Function in the Field of Hand Surgery." Plastic and Reconstructive Surgery - Global Open 12, no. 4 (2024): e5745. http://dx.doi.org/10.1097/gox.0000000000005745.

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Background: Three-dimensional (3D) technology has become a standard manufacturing element in many industries and has gained significant interest in plastic surgery. The 3D scans are widely used for patient communication, virtual surgery planning, and intraoperative tool manufacturing, providing a more comprehensive view of procedures and their outcomes compared with 2D visualization. Methods: We evaluated the performance of six commercially available 3D scanners by acquiring 3D models of a human hand and a 3D-printed replica of a human hand. We performed objective comparisons between the 3D mo

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Kasahara, Takumi, Meiko Oki, Shingo Kamijo, and Hidekazu Takahashi. "Accuracy of the Conventional Facial Impression Method and Three-Dimensional Auricular Shape Data Obtained Using Extra- and Intraoral Optical Scanners." Dentistry Journal 12, no. 11 (2024): 354. http://dx.doi.org/10.3390/dj12110354.

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Background: Facial impression methods have been used to fabricate auricular prostheses; however, deformation due to the weight of the impression material remains. This study aimed to investigate the accuracy of auricular three-dimensional (3D) data obtained using a 3D optical extraoral scanner and an intraoral scanner compared with that of a conventional facial impression method. Methods: Six auricles were digitized using an extraoral scanner with and without a reference board around the auricle and an intraoral scanner. Auricle casts fabricated using auricle impressions were scanned using a l

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Jiang, Hai Lin. "Precision Analysis of Reconstructed Aluminum Alloy Handle." Advanced Materials Research 479-481 (February 2012): 2226–30. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.2226.

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In order to carry out the error analyses of the aluminum alloy in reverse engineering, Mastercam was used to create three-dimensional (3D) parametric solid models and automatically generate NC program files. By using the generated NC program, a simulating is processed on a milling machine. The surface of the obtained product 1 was immediately scanned by a laser scanner. Using the obtained results from the laser scanner, the three-dimensional models were created in Geomagic Studio. Reanalysis of the three dimensional models, product 2 can be obtained. Finally, Error analysis was carried out by

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Alharbi, Abdulaziz M., Saleh A. Alawaji, Mohammed Riad Yehya, and Ali A. Alenezi. "Evaluation of the accuracy of different digital scanning systems and intraoral scanning strategies: An in vitro study." Saudi Journal of Oral Sciences 11, no. 2 (2024): 125–32. http://dx.doi.org/10.4103/sjoralsci.sjoralsci_40_24.

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Abstract Introduction: Differentiating between the various available digital impression systems in terms of accuracy could help in determining the most appropriate system to be used. Aim: The purpose of this in vitro study was to evaluate the accuracy of four different intraoral scanners, along with different intraoral scanning strategies (IOSs), and using the conventional impression method. Materials and Methods: A model with prepared teeth was scanned with a laboratory scanner. Following that, the model was scanned using the following four intraoral scanners (IOSs): TRIOS, CEREC AC Omnicam,

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17

Maeng, Jiyoun, Young-Jun Lim, Bongju Kim, Myung-Joo Kim, and Ho-Beom Kwon. "A New Approach to Accuracy Evaluation of Single-Tooth Abutment Using Two-Dimensional Analysis in Two Intraoral Scanners." International Journal of Environmental Research and Public Health 16, no. 6 (2019): 1021. http://dx.doi.org/10.3390/ijerph16061021.

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The aim of this study was to two-dimensionally evaluate deviation errors at five digital cross-sections of single-tooth abutment in regards to data obtained from two intraoral scanners, and to evaluate accuracy of individual scanners. Two intraoral scanners, the Trios 3® (3 Shape, Copenhagen, Denmark) and EzScan® (Vatech, Hwaseong, Korea), were evaluated by utilizing 13 stone models. The superimposed 3D data files were sectioned into five different planes: buccal-lingual section (BL), mesial-distal section (MD), transverse high section (TH), transverse middle section (TM), and transverse low s

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Nouri, Taoufik. "Three-dimensional scanner based on fringe projection." Optical Engineering 34, no. 7 (1995): 1961. http://dx.doi.org/10.1117/12.200616.

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Lee, Changyeop, Wonseok Choi, Jeesu Kim, and Chulhong Kim. "Three-dimensional clinical handheld photoacoustic/ultrasound scanner." Photoacoustics 18 (June 2020): 100173. http://dx.doi.org/10.1016/j.pacs.2020.100173.

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Nabbout, Fidele, and Pascal Baron. "Anchorage in orthodontics: Three-dimensional scanner input." Journal of International Society of Preventive and Community Dentistry 8, no. 1 (2018): 6. http://dx.doi.org/10.4103/jispcd.jispcd_422_17.

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Park, Jae Won, Se An Oh, Ji Woon Yea, and Min Kyu Kang. "Fabrication of malleable three-dimensional-printed customized bolus using three-dimensional scanner." PLOS ONE 12, no. 5 (2017): e0177562. http://dx.doi.org/10.1371/journal.pone.0177562.

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Altyntsev, M. A., and G. D. Geraschenko. "The study of 3D modelling accuracy using terrestrial laser scanning data of Geomax Zoom 300." Interexpo GEO-Siberia 1 (May 18, 2022): 76–85. http://dx.doi.org/10.33764/2618-981x-2022-1-76-85.

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One of the tasks solved by terrestrial laser scanning data is three-dimensional modeling of territories. Due to the high density of the resulting point cloud, it is possible to create three-dimensional models of objects with a high level of detail. To date, a large number of models of laser scanners have been released, the technical characteristics of which can be significantly distinguished. To understand the possible accuracy of constructing three-dimensional modes based on the data of a certain laser scanner model and where the scan positions should be placed, a number of studies have to be

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Delgado, Carlos Alberto, Roberto Shimabuku, Erika Alarcón, Luis Huicho, and Augusto Cesar Ferreira De Moraes. "Reliability of unconventional torso anthropometry using a three-dimensional scanner in Peruvian children and adolescents." F1000Research 7 (March 2, 2018): 259. http://dx.doi.org/10.12688/f1000research.13936.1.

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Background: Three-dimensional (3D) scanners have made it possible to measure and display body surface and shape with high precision. These are fast measurements with minimum discomfort, which is especially useful when children are involved. The objective was to assess the reliability and validity of a 3D-scanner for measuring unconventional torso parameters in children and adolescents. Methods: This is a sub-sample of the SAYCARE study, an observational multicentre research effort being conducted in six South American countries, aimed at developing methods to collect data on cardiovascular hea

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Hruboš, Marián, Dušan Nemec, Aleš Janota, et al. "Sensor fusion for creating a three-dimensional model for mobile robot navigation." International Journal of Advanced Robotic Systems 16, no. 4 (2019): 172988141986507. http://dx.doi.org/10.1177/1729881419865072.

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This article deals with the design of an automated system for creating a three-dimensional model of the environment with its texture. The method for creating a three-dimensional model of the environment is based on the use of a two-dimensional scanner for which the supporting hardware has been designed and constructed. The whole system extends the use of a two-dimensional scanner that is embedded in a robotic system. Supporting hardware rotates the scanner around the scan axis. This will create a three-dimensional model of the environment using a two-dimensional scanner. Thus, the resulting th

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Ganiyeva, Sachli Abdulkhag. "THREE-DIMENSIONAL SURFACE LASER SCANNING TECHNOLOGY." Deutsche internationale Zeitschrift für zeitgenössische Wissenschaft 75 (March 5, 2024): 13–14. https://doi.org/10.5281/zenodo.10783598.

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The integration of digital techniques with geodetic and photogrammetric technology has led to the creation of new tools for collecting spatial information about the terrain - the terrestrial laser location system or terrestrial laser scanner (YLS).

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Majid, Z., C. L. Lau, and A. R. Yusoff. "THREE-DIMENSIONAL RECORDING OF BASTION MIDDLEBURG MONUMENT USING TERRESTRIAL LASER SCANNER." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B5 (June 15, 2016): 323–26. http://dx.doi.org/10.5194/isprs-archives-xli-b5-323-2016.

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This paper describes the use of terrestrial laser scanning for the full three-dimensional (3D) recording of historical monument, known as the Bastion Middleburg. The monument is located in Melaka, Malaysia, and was built by the Dutch in 1660. This monument serves as a major hub for the community when conducting commercial activities in estuaries Malacca and the Dutch build this monument as a control tower or fortress. The monument is located on the banks of the Malacca River was built between Stadhuys or better known as the Red House and Mill Quayside. The breakthrough fort on 25 November 2006

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Majid, Z., C. L. Lau, and A. R. Yusoff. "THREE-DIMENSIONAL RECORDING OF BASTION MIDDLEBURG MONUMENT USING TERRESTRIAL LASER SCANNER." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B5 (June 15, 2016): 323–26. http://dx.doi.org/10.5194/isprsarchives-xli-b5-323-2016.

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This paper describes the use of terrestrial laser scanning for the full three-dimensional (3D) recording of historical monument, known as the Bastion Middleburg. The monument is located in Melaka, Malaysia, and was built by the Dutch in 1660. This monument serves as a major hub for the community when conducting commercial activities in estuaries Malacca and the Dutch build this monument as a control tower or fortress. The monument is located on the banks of the Malacca River was built between Stadhuys or better known as the Red House and Mill Quayside. The breakthrough fort on 25 November 2006

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Xie, Xue Dong, Xin Kuan Liu, and Jun Ting Cheng. "Measurement Technique Based on the Three-Dimensional White-Light Scanner." Applied Mechanics and Materials 397-400 (September 2013): 993–96. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.993.

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White light scanner plays a vital role in reverse engineering. It has penetrated into all industries. It includes cars, grinding, aircraft, and mobile phone industry and so on. The paper introduces the basic principle of white light scanner and the measurement techniques.

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Nikoyan, Levon, and Rinil Patel. "Intraoral Scanner, Three-Dimensional Imaging, and Three-Dimensional Printing in the Dental Office." Dental Clinics of North America 64, no. 2 (2020): 365–78. http://dx.doi.org/10.1016/j.cden.2019.12.004.

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Zheng, Jia Zhu. "Measurement of a Single Standing Tree Volume Based on Three-Dimensional Laser Scanner System." Applied Mechanics and Materials 490-491 (January 2014): 1470–74. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1470.

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With the application of the three-dimensional laser scanner, it makes possible that measure the shape and size of the sanding tree accurately. In this paper we put forward a new approach to reckon the volume of a single standing tree with three-dimensional laser scanner, explain the principle of the three-dimensional laser scanning system and how to establish the model of a single standing tree based on three-dimensional laser scanner and computer program. We have a test for a single standing tree volume with three-dimensional laser scanner, and also expatiate the specific process of reckoning

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Brajlih, Tomaz, Spela Ekselenski, Igor Drstvensek, and Urska Kostevsek. "ACCURACY TEST OF DENTAL THREE-DIMENSIONAL OPTICAL SCANNER." Journal of Production Engineering 21, no. 2 (2018): 35–38. http://dx.doi.org/10.24867/jpe-2018-02-035.

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Nabbout, Fidele, and Pascal Baron. "Orthodontics and dental anatomy: Three-dimensional scanner contribution." Journal of International Society of Preventive and Community Dentistry 7, no. 6 (2017): 321. http://dx.doi.org/10.4103/jispcd.jispcd_394_17.

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Sasaki, M., T. Yamaguchi, J. H. Song, K. Hane, M. Hara, and K. Hori. "Optical scanner on a three-dimensional microoptical bench." Journal of Lightwave Technology 21, no. 3 (2003): 602–8. http://dx.doi.org/10.1109/jlt.2003.811793.

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Yang, Shengyuan, and Wenhao Huang. "Three-dimensional displacements of a piezoelectric tube scanner." Review of Scientific Instruments 69, no. 1 (1998): 226–29. http://dx.doi.org/10.1063/1.1148500.

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Åslund, N., A. Liljeborg, P. O. Forsgren, and S. Wahlsten. "Three-dimensional digital microscopy using the PHOIBOSl Scanner." Scanning 9, no. 6 (1987): 227–35. http://dx.doi.org/10.1002/sca.4950090603.

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Chen, Kai, Kai Zhan, Xiaocong Yang, and Da Zhang. "Accuracy Improvement Method of a 3D Laser Scanner Based on the D-H Model." Shock and Vibration 2021 (May 25, 2021): 1–9. http://dx.doi.org/10.1155/2021/9965904.

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A three-dimensional (3D) laser scanner with characteristics such as acquiring huge point cloud data and noncontact measurement has revolutionized the surveying and mapping industry. Nonetheless, how to guarantee the 3D laser scanner precision remains the critical factor that determines the excellence of 3D laser scanners. Hence, this study proposes a 3D laser scanner error analysis and calibration-method-based D-H model, applies the D-H model method in the robot area to the 3D laser scanner coordinate for calculating the point cloud data and creatively derive the error model, comprehensively a

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Im, Chang-Hee, Ji-Man Park, Jang-Hyun Kim, You-Jung Kang, and Jee-Hwan Kim. "Assessment of Compatibility between Various Intraoral Scanners and 3D Printers through an Accuracy Analysis of 3D Printed Models." Materials 13, no. 19 (2020): 4419. http://dx.doi.org/10.3390/ma13194419.

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To assess the accuracy of various intraoral scanners (IOSs) and to investigate the existence of mutual compatibility that affects the accuracy between IOS and 3-dimensional (3D) printing using a scan quadrant model. For clinical implication, crown preparations and cavity design according to prosthetic diagnosis and treatment considerations must be acquired by a digital scanner. The selected typodont model was scanned using a reference scanner, from which reference (Ref) standard tessellation language (STL) data were created. Data obtained by scanning the typodont model with IOSs based on three

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Karp, Joel S., Margaret E. Daube-Witherspoon, and Gerd Muehllehner. "Factors Affecting Accuracy and Precision in PET Volume Imaging." Journal of Cerebral Blood Flow & Metabolism 11, no. 1_suppl (1991): A38—A44. http://dx.doi.org/10.1038/jcbfm.1991.35.

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Volume imaging positron emission tomographic (PET) scanners with no septa and a large axial acceptance angle offer several advantages over multiring PET scanners. A volume imaging scanner combines high sensitivity with fine axial sampling and spatial resolution. The fine axial sampling minimizes the partial volume effect, which affects the measured concentration of an object. Even if the size of an object is large compared to the slice spacing in a multiring scanner, significant variation in the concentration is measured as a function of the axial position of the object. With a volume imaging

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Hokayem, Perla, Rim Bourgi, Carlos Enrique Cuevas-Suárez, et al. "Optimization of Scanning Distance for Three Intraoral Scanners from Different Manufacturers: An In Vitro Accuracy Analysis." Prosthesis 7, no. 4 (2025): 88. https://doi.org/10.3390/prosthesis7040088.

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Background: Accuracy of optical impressions—defined by the intraoral scanner (IOS)’s trueness and precision per International Organization for Standardization (ISO) standards—is influenced by both operator- and patient-related factors. Thus, this in vitro study aimed to (1) evaluate how scanning distance affects the accuracy of three different intraoral scanners (IOSs), and (2) identify the optimal scanning distance for each scanner. Methods: A maxillary arch model was obtained using polyvinyl siloxane impression material and poured with Type IV stone (Octa-rock royal®, Kulzer, Germany). Using

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Suryajaya, William, Maria Purbiati, and Nada Ismah. "Accuracy of digital dental models and three-dimensional printed dental models in linear measurements and Bolton analysis." F1000Research 10 (March 4, 2021): 180. http://dx.doi.org/10.12688/f1000research.31865.1.

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Background: Due to advances in digital technology, it is possible to obtain digital dental models through intraoral scanning. The stereolithographic data collected from the scanner can subsequently be printed into a three-dimensional dental model in resinic material. However, the accuracy between digital dental models and printed dental models needs to be evaluated since it might affect diagnosis and treatment planning in orthodontic treatment. This study aimed to evaluate the accuracy of digital models scanned by a Trios intraoral scanner and three-dimensional dental models printed using a Fo

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Suryajaya, William, Maria Purbiati, and Nada Ismah. "Accuracy of digital dental models and three-dimensional printed dental models in linear measurements and Bolton analysis." F1000Research 10 (September 1, 2021): 180. http://dx.doi.org/10.12688/f1000research.31865.2.

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Background: Due to advances in digital technology, it is possible to obtain digital dental models through intraoral scanning. The stereolithographic data collected from the scanner can subsequently be printed into a three-dimensional dental model in resinic material. However, the accuracy between digital dental models and printed dental models needs to be evaluated since it might affect diagnosis and treatment planning in orthodontic treatment. This study aimed to evaluate the accuracy of digital models scanned by a Trios intraoral scanner and three-dimensional dental models printed using a Fo

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Lee, Kyungmin Clara, and Seong-Joon Park. "Digital Intraoral Scanners and Alginate Impressions in Reproducing Full Dental Arches: A Comparative 3D Assessment." Applied Sciences 10, no. 21 (2020): 7637. http://dx.doi.org/10.3390/app10217637.

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The purpose of this in vivo study was to compare in vivo full arch intraoral scans obtained using two intraoral scanners and conventional impression. Twenty patients were scanned using TRIOS and iTero scanners, as well as conventional impression. Dental models obtained from alginate impression were scanned with a laboratory desktop scanner. Individual intraoral scan data were compared with corresponding model scans using three-dimensional (3D) surface analysis. The average surface deviations were calculated for quantitative evaluation, and these values were compared between two intraoral scann

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Sari, Marlindia Ike, Anang Sularsa, Rini Handayani, Surya Badrudin Alamsyah, and Siswandi Riki Rizaldi. "3D Scanner Using Infrared for Small Object." JOIV : International Journal on Informatics Visualization 7, no. 3 (2023): 935. http://dx.doi.org/10.30630/joiv.7.3.2050.

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Three-Dimensional scanning is a method to convert various distances set into object visualization in 3-dimensional form. Developing a 3D scanner has various methods and techniques depending on the 3d scanner's purpose and the size of the object target. This research aims to build a prototype of a 3D scanner scanning small objects with dimensions maximum(10x7x23)cm. The study applied an a-three dimensional(3D) scanner using infrared and a motor to move the infrared upward to get Z-ordinate. The infrared is used to scan an object and visualize the result based on distance measurement by infrared

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Ivanov, Sergiy, and Pavlo Oliinyk. "APPLICATION OF 3D SCANNING TO QUALITY CONTROL OF MACHINE PARTS." APPLIED GEOMETRY AND ENGINEERING GRAPHICS 1, no. 106 (2024): 119–32. https://doi.org/10.32347/0131-579x.2024.106.119-132.

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Three-dimensional scanning is a relatively new technology that allows one to obtain a digital three-dimensional model of an object with the help of an electronic device and computer technology. Three-dimensional scanning is used in many fields: architecture, mechanical engineering, aviation, medicine, culture and art, education. The use of three-dimensional scanning for part quality control allows one to significantly reduce the required volume of measurements, since main geometric parameters of the part (linear and angular dimensions) and even deviations of the shape and location can be deter

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Komissarov, A. V., A. V. Remizov, M. M. Shlyakhova, and K. K. Yambaev. "Handheld Laser Scanner Research." Geodesy and Cartography 952, no. 10 (2019): 47–54. http://dx.doi.org/10.22389/0016-7126-2019-952-10-47-54.

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The authors consider hand-held laser scanners, as a new photogrammetric tool for obtaining three-dimensional models of objects. The principle of their work and the newest optical systems based on various sensors measuring the depth of space are described in detail. The method of simultaneous navigation and mapping (SLAM) used for combining single scans into point cloud is outlined. The formulated tasks and methods for performing studies of the DotProduct (USA) hand-held laser scanner DPI?8X based on a test site survey are presented. The accuracy requirements for determining the coordinates of

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Persson, Anna, Matts Andersson, Agneta Oden, and Gunilla Sandborgh-Englund. "A three-dimensional evaluation of a laser scanner and a touch-probe scanner." Journal of Prosthetic Dentistry 95, no. 3 (2006): 194–200. http://dx.doi.org/10.1016/j.prosdent.2006.01.003.

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Milde, Jan, and František Jurina. "Comparison of Selected Thermoplastic Materials in the Fused Deposition Modeling Process and their Influence on the Dimensional Accuracy of an Orthodontic Upper Teeth Model." Materials Science Forum 952 (April 2019): 143–52. http://dx.doi.org/10.4028/www.scientific.net/msf.952.143.

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The article focuses on the research of selected thermoplastic materials processed by the Fused Deposition Modeling (FDM) additive manufacturing method and dimensional accuracy of parts in particular. The selected thermoplastic materials were ABS, PLA and HIPS. The digital model of the object (upper teeth) was obtained by the intraoral 3D scanner of 3Shape TRIOS used in dentistry. Based on the 3D (Three Dimensional) scanned digital model, the manufacturing of the upper teeth was performed on the Zortrax M200 FDM 3D printer. Parameters of the manufactured parts were as follows: Layer thickness 0

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Kayssoun, Ammar, and A. Nehir Özden. "Trueness and Precision of Three Different Scanners for Digitizing a Completely Edentulous Gypsum Model." Journal of Medical Imaging and Health Informatics 11, no. 1 (2021): 89–95. http://dx.doi.org/10.1166/jmihi.2021.3275.

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Purpose: The aim of this in vitro study was to evaluate the precision and trueness of three different scanners to scan a maxillary edentulous model using three-dimensional evaluation software. Materials and Methods: A coordinate measuring machine was used as the reference scanner. Cone beam computed tomography, computed tomography (CT), and an intraoral scanner were used to digitize an edentulous gypsum model. Data were collected and loaded into three-dimensional evaluation software. The scan outputs were superimposed, and the accuracy (trueness and precision) of the scanners were compared. On

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Lievens, Mauranne, Lisa De Kock, Matthias Ureel, Geert Villeirs, Wim Van Paepegem, and Renaat Coopman. "The Accuracy of an Optical White Light Desktop 3D Scanner and Cone Beam CT Scanner Compared to a Multi-Slice CT Scanner to Digitize Anatomical 3D Models: A Pilot Study." Craniomaxillofacial Trauma & Reconstruction 18, no. 2 (2025): 27. https://doi.org/10.3390/cmtr18020027.

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Additive manufacturing, in combination with virtual surgery planning, leads to the predictability of complex surgical cases. To guarantee patient safety, three-dimensional (3D) print quality must be ensured and verified. The aim of this study is to compare the accuracy of an optical white-light desktop scanner (OWLDS) and a cone beam CT (CBCT) scanner to that of a multi-slice CT scanner (MSCT) for scanning and digitizing 3D anatomical models. Twenty-two removable parts of a CE-certified anatomical skull, used as a patient-specific surrogate in a clinical workflow, were each scanned by MSCT, CB

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Henson, Kristy, Paul Constantino, F. Robin O’Keefe, and Greg Popovich. "Three-dimensional scanning and printing techniques to analyze and archive human skeletal remains." Library Hi Tech 37, no. 3 (2019): 389–400. http://dx.doi.org/10.1108/lht-10-2017-0206.

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Purpose The topic of human skeletal analysis is a sensitive subject in North America. Laws and regulations surrounding research of human skeletal material make it difficult to use these remains to characterize various populations. Recent technology has the potential to solve this dilemma. Three-dimensional (3D) scanning creates virtual models of this material, and stores the information, allowing future studies on the material. The paper aims to discuss these issues. Design/methodology/approach To assess the potential of this methodology, the authors compared processing time, accuracy and cost

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