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Journal articles on the topic 'Study Plaster Models'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Orozco, Odell Ali Chávez, Olivia Hernández Molina, and Cristóbal Landa Román. "Alginate Brand Comparison: A Study on Measurement and Hydration." EAS Journal of Dentistry and Oral Medicine 6, no. 06 (2024): 111–16. http://dx.doi.org/10.36349/easjdom.2024.v06i06.004.

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Alginate, discovered in 1881 by British chemist E.C.C. Stanford, is a polysaccharide isolated from seaweed. Since its introduction into dentistry in 1940, it has been used as an impression material due to its hydrophilic and hydrophobic properties, which allow dimensional changes during impression and solidification. For optimal impression, type 3 plaster is recommended, which presents lower expansion and longer setting time, ensuring dimensional accuracy. In addition, the stability of the dental model is crucial, including mechanical and dimensional strength. Plastic and metal trays offer dif

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Reuschl, Ralph Philip, Wieland Heuer, Meike Stiesch, Daniela Wenzel, and Marc Philipp Dittmer. "Reliability and validity of measurements on digital study models and plaster models." European Journal of Orthodontics 38, no. 1 (2015): 22–26. http://dx.doi.org/10.1093/ejo/cjv001.

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Shafaee, Hooman, Fahimeh Farzanegan, Bahareh Yaloodbardan, Seyed Hosein Hoseini Zarch, and Abdolrasoul Rangrazi. "Comparison of dental dimensions in models developed with digital procedures and plaster models." Journal of Oral Research 13, no. 1 (2024): 15–25. http://dx.doi.org/10.17126/joralres.2024.002.

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Aim: This study aimed to collect evidence on the validity and reliability of measurements obtained from digital impression techniques. Materials and Methods: This comparative study was conducted on 31 patients. Intraoral scanner was applied to all patients. For each patient, an alginate impression of the upper maxilla was taken and later the 3D digital model was extracted by dental cone-beam computed tomography (CBCT). For preparation of plaster models, alginate impressions were taken and immediately poured with dental stone. In the next stage, a comparison was performed among the intraoral sc

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Fleming, PS, V. Marinho, and A. Johal. "Orthodontic measurements on digital study models compared with plaster models: a systematic review." Orthodontics & Craniofacial Research 14, no. 1 (2010): 1–16. http://dx.doi.org/10.1111/j.1601-6343.2010.01503.x.

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Rebong, Raymund E., Kelton T. Stewart, Achint Utreja, and Ahmed A. Ghoneima. "Accuracy of three-dimensional dental resin models created by fused deposition modeling, stereolithography, and Polyjet prototype technologies: A comparative study." Angle Orthodontist 88, no. 3 (2018): 363–69. http://dx.doi.org/10.2319/071117-460.1.

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ABSTRACT Objectives: The aim of this study was to assess the dimensional accuracy of fused deposition modeling (FDM)–, Polyjet-, and stereolithography (SLA)–produced models by comparing them to traditional plaster casts. Materials and A total of 12 maxillary and mandibular posttreatment orthodontic plaster casts were selected from the archives of the Orthodontic Department at the Indiana University School of Dentistry. Plaster models were scanned, saved as stereolithography files, and printed as physical models using three different three-dimensional (3D) printers: Makerbot Replicator (FDM), 3

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Bedi, Prince, Divya Shetty, Bhupender Singh, Ayushi Nagar, and Payal Sharma. "Orthodontics in 3D: Unveiling the precision of printed models vs plaster traditions." Journal of Contemporary Orthodontics 9, no. 1 (2025): 111–16. https://doi.org/10.18231/j.jco.2025.015.

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Orthodontic treatment relies heavily on accurate diagnosis and treatment planning. Traditionally, study casts obtained from plaster models have been an essential component of orthodontic records. However, advancements in three-dimensional imaging and modeling have introduced digital alternatives, offering ease of access, storage, and transfer of patient information. To compare the accuracy of linear measurements obtained from 3D printed models with those taken from plaster study models and identify the most reliable type of printed model. The study was conducted on ten patients requiring fixed

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Tran, Vo Huyen Bao, Tran Hung Lam, Truong Nhut Khue, Tran Ngoc Quang Phi, and Hoang Viet. "Accuracy and Reliability of Digital Dental Models Obtained by Intraoral Scans Compared with Plaster Models." Applied Sciences 15, no. 6 (2025): 2927. https://doi.org/10.3390/app15062927.

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Introduction: In orthodontics, determining the parameters of tooth size and dental arch and conducting Bolton analysis is crucial for diagnosis, treatment planning, and patient outcomes. This study evaluates the accuracy and reliability of measuring dental-arch dimensions on digital models created using the CEREC Primescan intraoral scanner, compared to measurements taken from plaster models. Methods: The study included two types of dental models (plaster and intraoral scan) from sixty-three subjects. Impressions were taken to create plaster models, and the subjects’ mouths were scanned with t

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Murugesan, Arathi, and Arvind Sivakumar. "Comparison of accuracy of mesiodistal tooth measurements made in conventional study models and digital models obtained from intraoral scan and desktop scan of study models." Journal of Orthodontics 47, no. 2 (2020): 149–55. http://dx.doi.org/10.1177/1465312520910755.

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Objective: To compare the measured values obtained from the plaster model, digital models created by scanning the plaster models and direct intraoral scanning with the values obtained from direct intraoral measurements. Design: This was a prospective clinical study. Setting: The study was conducted in Department of Orthodontics, Saveetha Dental College and Hospital, Tamil Nadu, India. Participants: Ten patients before the start of orthodontic treatment were selected for the study. Methods: A computer-aided design and manufacturing (CAD-CAM) system is an advanced technology that is being adopte

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Abizadeh, Neilufar, David R. Moles, Julian O’Neill, and Joseph H. Noar. "Digital versus plaster study models: How accurate and reproducible are they?" Journal of Orthodontics 39, no. 3 (2012): 151–59. http://dx.doi.org/10.1179/1465312512z.00000000023.

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Kardach, Hubert, Anna Szponar-Żurowska, and Barbara Biedziak. "A Comparison of Teeth Measurements on Plaster and Digital Models." Journal of Clinical Medicine 12, no. 3 (2023): 943. http://dx.doi.org/10.3390/jcm12030943.

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(1) Background: Modern imaging methods and constantly developing technologies extend the range of diagnostic tools in medicine and in orthodontics. Thanks to them, scientists and doctors can use devices designed to diagnose 3D structures of the human body. The aim of the study was to assess the usefulness of digital orthodontic models as a diagnostic tool in the work of an orthodontist through a comparative analysis of the value of orthodontic measurements made on traditional plaster models and virtual models. (2) Methods: A total of 80 sets of models were made, including 40 sets of plaster mo

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Almudhi, Abdullazez, Iman Almohammad, Sara Alswayyed, Elzahraa Eldwakhly, and Sarah Almugairin. "The Efficacy of Diagnostic Plaster Models in Orthodontic Diagnosis and Treatment Planning." Diagnostics 14, no. 19 (2024): 2124. http://dx.doi.org/10.3390/diagnostics14192124.

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Background: The growing integration of digital technologies in orthodontics is shifting the orthodontic diagnosis and recordkeeping paradigm, replacing conventional plaster models with intraoral scanning and 3D photography. This study investigated the impact of orthodontic plaster models on orthodontic diagnosis and treatment planning decisions by orthodontists. Methods: Thirty-three orthodontists assessed six patients’ records with different malocclusion cases. Each case was assessed twice by each orthodontist evaluating a case: the first evaluation with digital records without diagnostic cas

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Gunel, Rukiye, Merve Göymen, Aysegul Gulec, and Guzin Bilgin Buyuknacar. "Comparison of Measurements on Conventional Plaster Model and Computer-Aided Digital Dental Models." European Journal of Therapeutics 31, no. 1 (2025): 11–18. https://doi.org/10.58600/eurjther2550.

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Objective: The objective of the present study was to examine the veracity and precision of measurements obtained from plaster models and digital models of subjects presenting with different malocclusion patterns. Methods: A total of 68 orthodontic patients, who had requested treatment were randomly selected and included in the study and classified as Class I (n=20), Class II (n=20) and Class III (n=18). The first group underwent an alginate impression procedure, which involved taking measurements from both the upper and lower jaws. Subsequently, plaster models were created through the casting

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Peh, Yew Jia, Ming Tak Chew, Hung Chew Wong, and Mimi Yow. "Validity and Reliability of Peer Assessment Rating Index Measurement Derived from Digital and Plaster Models." APOS Trends in Orthodontics 8 (September 1, 2018): 131–38. http://dx.doi.org/10.4103/apos.apos_39_18.

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Aims The aim of the study was to determine the validity and reliability of Peer Assessment Rating (PAR) index score derived from digital and plaster models of the same patient. Subjects and Methods Thirty orthodontic plaster study models were digitalized using the 3Shape R700™ Orthodontic 3D scanner. PAR Index scoring was carried out on both the plaster and digital models by one independent examiner calibrated in the PAR Index. The measurements were repeated at a second sitting. Measurements were made on plaster models with the PAR Index ruler and on digital models with the 3Shape OrthoAnalyze

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Petrović, Valentina, Martina Šlaj, Mia Buljan, Tadej Čivljak, Ana Zulijani, and Berislav Perić. "Comparison of Tooth Size Measurements in Orthodontics Using Conventional and 3D Digital Study Models." Journal of Clinical Medicine 13, no. 3 (2024): 730. http://dx.doi.org/10.3390/jcm13030730.

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(1) Background: The objective of this study was to assess which digitization method produces the biggest deviation in the 3D images of tooth size from plaster models made using alginate impressions, which are considered the gold standard in orthodontics. (2) Methods: The sample used in this study included 30 subjects (10 males and 20 females). Measurements were made on four types of models: (1) digital models obtained through intraoral scanning and digitized models of plaster cast made from (2) alginate impressions, (3) silicone impressions, and (4) conventional plaster models. Mesio-distal (M

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Kasparova, Magdalena, Lucie Grafova, Petr Dvorak, et al. "Possibility of reconstruction of dental plaster cast from 3D digital study models." BioMedical Engineering OnLine 12, no. 1 (2013): 49. http://dx.doi.org/10.1186/1475-925x-12-49.

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RABELO, Rodrigo, and Roberta Tarkany BASTING. "Retrospective study on the angle of the upper permanent second molars in schoolchildren with normal occlusion." RGO - Revista Gaúcha de Odontologia 64, no. 1 (2016): 37–42. http://dx.doi.org/10.1590/1981-863720160001000053005.

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ABSTRACT Objective: The aims of this study were to evaluate the angle of permanent second molars in schoolchildren with a normal occlusion, using panoramic radiographs and plaster models, and to evaluate the correlation between measurements obtained by these two methods. Methods: Thirty Brazilian schoolchildren with a mean age of 14 years and 7 months were selected. These individuals had not previously undergone orthodontic interventions, required a minimum of four of Andrews' six keys of occlusion, with the first key (interarch relation) being mandatory, and significant facial asymmetry was a

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Belandria, Cesar Daniel Avendaño. "Comparative Analysis between Conventional Plaster Models and Digital Models in the Accuracy of Prosthetic Adaptation." Revista JRG de Estudos Acadêmicos 8, no. 18 (2025): e081976. https://doi.org/10.55892/jrg.v8i18.1976.

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The comparison between conventional plaster cast models and digital models in the accuracy of prosthetic fitting is a relevant topic in modern dentistry. Several studies have shown that digital models, obtained by intraoral scanning, have advantages in terms of accuracy, processing time, and patient satisfaction over conventional plaster models. While both methods can be effective, digital models offer greater flexibility, allowing for better fitting of prostheses, with fewer impression errors and greater reproducibility. However, it is important to consider the variations that may occur depen

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Nocar, Adam, Aleš Procházka, Magdaléna Kloubcová, Pavel Hyšpler, Martin Schatz, and Tatjana Dostálová. "A Three-Year Prospective Study Comparing Stereolithography Printed Models to Classical Impression and Plaster Cast Models in Orthodontic Therapy: A 3D Objectification Approach." Applied Sciences 13, no. 13 (2023): 7542. http://dx.doi.org/10.3390/app13137542.

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The integration of computational intelligence and augmented reality has become increasingly prevalent in dental practices. Three-dimensional (3D) printing techniques have now become routine in orthodontics, prosthetics, and maxillofacial surgery. The objective of this study is to assess the effectiveness of stereolithography (SLA) printed models compared to traditional plaster casts over a three-year period. The experimental dataset consisted of 36 orthodontic patients, each with SLA printed models and plaster casts for both the upper and lower jaws, resulting in a total of 72 scans in the for

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Leung, Chung-Yan Vanessa, Yanqi Yang, Chongshan Liao, et al. "Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment Outcomes." Scientific World Journal 2018 (June 12, 2018): 1–5. http://dx.doi.org/10.1155/2018/9819384.

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Objective. This study aimed to compare the use of digital models and plaster casts in assessing the improvement in occlusion following orthodontic treatment. Materials and Methods. Digital models and plaster casts of 39 consecutive patients at pre- and posttreatment stages were obtained and assessed using the Peer Assessment Rating (PAR) index and the Index of Complexity and Treatment Need (ICON). PAR and ICON scores were compared at individual and group levels. Categorization of improvement level was compared using Kappa (κ) statistics. Results. There was no significant difference in neither

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Shastry, Shruti, and Jae Hyun Park. "Evaluation of the use of digital study models in postgraduate orthodontic programs in the United States and Canada." Angle Orthodontist 84, no. 1 (2013): 62–67. http://dx.doi.org/10.2319/030813-197.1.

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ABSTRACT Objective: To investigate the extent, experience, and trends associated with digital model use, as well as the advantages of using a particular study model type (digital or plaster) in postgraduate orthodontic programs in the United States and Canada. Materials and Methods: An electronic survey consisting of 14 questions was sent to 72 program directors or chairpersons of accredited orthodontic postgraduate programs in the United States and Canada. Results: Fifty-one responded for a 71% response rate. Sixty-five percent of the schools use plaster study models compared with 35% that us

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Raza, Monis, Mandeep Singh, Achint Juneja, Divya Shetty, Payal Sharma, and Shubhangi Jain. "Accuracy and reproducibility of laser-scanned digital models compared to plaster models – An in vitro study." Indian Journal of Dental Sciences 15, no. 1 (2023): 20. http://dx.doi.org/10.4103/ijds.ijds_125_21.

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Petrović, Valentina, Martina Šlaj, Mia Buljan, Luka Morelato, Ana Zulijani, and Berislav Perić. "A Comparison of Dental Arch Width and Length on 3D Digital and Plaster Models." Applied Sciences 14, no. 9 (2024): 3572. http://dx.doi.org/10.3390/app14093572.

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The aim of the study was to determine potential deviation in measurements of commonly used orthodontic variables, including intermolar width (IMW), intercanine width (ICW), and arch perimeter (AP), when measured on three-dimensional images compared to measurements performed on plaster models obtained from alginate impressions using a hand-held digital vernier caliper. A total of 120 sets of models were divided into four groups: plaster models made from an alginate impression, digitized plaster models made from an alginate and silicone impression, and digital models obtained via intraoral scan.

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Zhulev, Evgeny N., and Yuliya A. Vokulova. "Study of the dimensional accuracy of jaw models obtained by 3d printing using stereolithography." Kuban Scientific Medical Bulletin 27, no. 1 (2020): 40–48. http://dx.doi.org/10.25207/1608-6228-2020-27-1-40-48.

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Aim. To study the dimensional accuracy of dentition models produced by digital and conventional methods using an experimental model and digital technologies.Materials and methods. This article presents an assessment of the dimensional accuracy of jaw models created using an Asiga Max UV 3D printer from digital images of dentition created by an iTero Cadent intraoral scanner and plaster jaw models obtained from one-stage two-layer A-silicone impressions. The DentalCAD software and the Meshlab computer program were used to study the dimensional accuracy of the as-obtained digital images. The non

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Hassan, Nurul Huda, BudiAslinie Md. Sabri, and Mohamed Ibrahim Abu Hassan. "Accuracy of In-Vivo Digital Impressions of Complete Arch with Intraoral Scanner Vs Conventional Impression - A Review." Journal of Evolution of Medical and Dental Sciences 11, no. 1 (2022): 283–92. http://dx.doi.org/10.14260/jemds/2022/53.

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BACKGROUND We intend to evaluate the accuracy of in vivo conventional and digital methods in generating complete-arch dental models for measuring tooth dimension. METHODS Search was conducted through an electronic database in Medline, Cochrane Library, ResearchGate, PubMed and Google Scholar using query terms such as intraoral scanning; digital impression; accuracy in vivo full arch digital impression; analog impression; accuracy conventional impression; in vivo intraoral scanning; alginate impression; accuracy of plaster models; digital models; and complete arch accuracy. The outcomes were th

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Moylan, Heather B., Caroline K. Carrico, Steven J. Lindauer, and Eser Tüfekçi. "Accuracy of a smartphone-based orthodontic treatment–monitoring application: A pilot study." Angle Orthodontist 89, no. 5 (2019): 727–33. http://dx.doi.org/10.2319/100218-710.1.

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ABSTRACT Objectives: To investigate the reliability and accuracy of a monitoring system in patients undergoing orthodontic treatment with a rapid maxillary expander. Specifically, the amount of tooth movement calculated by the software was compared with the actual measurements taken on plaster models obtained during an in-office visit. Materials and Methods: Patients took intraoral video scans using the monitoring software's smartphone application (Dental Monitoring, Paris, France), immediately followed by impressions for plaster models. Intercanine and intermolar width measurements were calcu

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Sennimalai, Karthik, and Madhanraj Selvaraj. "Orthodontic model analysis in the permanent dentition: A review of past, and current methods." IP Indian Journal of Orthodontics and Dentofacial Research 8, no. 4 (2022): 220–26. http://dx.doi.org/10.18231/j.ijodr.2022.038.

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The study models are regarded as the gold standard tool in orthodontics since they aid in the diagnosis, treatment planning and monitoring of the changes that may occur throughout treatment. Besides these, plaster models are also used to monitor growth and clinical audits. A study model accurately replicates the teeth, surrounding soft tissues and occlusion. Traditionally, the orthodontic study models have been used to measure the overjet and overbite, tooth size, arch length, arch width, the curve of Wilson and Spee, space analysis and diagnostic setup. However, plaster models are still prefe

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Rosseto, Maria Cristina, Fernanda Maria Cassinelli Palma, Rívea Inês Ferreira, Arnaldo Pinzan, and Flávio Vellini-Ferreira. "Comparative study of dental arch width in plaster models, photocopies and digitized images." Brazilian Oral Research 23, no. 2 (2009): 190–95. http://dx.doi.org/10.1590/s1806-83242009000200016.

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Tonetto, Mateus Rodrigues, Matheus Coelho Bandéca, Mônica Barros Silva, et al. "Comparison of Linear Measurements and Analyses taken from Plaster Models and Three-dimensional Images." Journal of Contemporary Dental Practice 15, no. 6 (2014): 681–87. http://dx.doi.org/10.5005/jp-journals-10024-1599.

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ABSTRACT Digital models are an alternative for carrying out analyses and devising treatment plans in orthodontics. The objective of this study was to evaluate the accuracy and the reproducibility of measurements of tooth sizes, interdental distances and analyses of occlusion using plaster models and their digital images. Thirty pairs of plaster models were chosen at random, and the digital images of each plaster model were obtained using a laser scanner (3Shape R-700, 3Shape A/S). With the plaster models, the measurements were taken using a caliper (Mitutoyo Digimatic®, Mitutoyo (UK) Ltd) and

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Goonewardene, Roy W., Mithran S. Goonewardene, John M. Razza, and Kevin Murray. "Accuracy and validity of space analysis and irregularity index measurements using digital models." Australasian Orthodontic Journal 24, no. 2 (2008): 83–90. http://dx.doi.org/10.2478/aoj-2008-0012.

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Abstract Background Digital copies of study models may avoid the storage and retrieval issues of plaster study models, but measurements made on digital models may not be as accurate as measurements made on traditional study models. Aim To determine the reliability and validity of tooth size–arch length discrepancies (TALD), irregularity indices and arch lengths (four- and six-segment analyses) measured directly on study models with digital calipers with the same measurements measured on digital copies of the study models with proprietary software. Methods The irregularity indices and TALDs (fo

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Dmitrienko, Dmitry S., Vladimir V. Shkarin, Igor V. Fomin, and Tatyana D. Dmitrienko. "Clinical possibilities of applying the method of photostatic biometrics of plaster models of jaws." Journal of Volgograd State Medical University 20, no. 4 (2024): 49–53. http://dx.doi.org/10.19163/1994-9480-2023-20-4-49-53.

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The development of modern methods of biometrics is an urgent task of clinical dentistry. Aim. To determine the clinical possibilities of applying the method of photostatic biometrics of plaster models of jaws. Material and methods. A retrospective study was conducted on 46 pairs of plaster jaw models with physiological occlusion. Biometrics of jaw models from plaster was carried out according to generally accepted methods. The method of photostatic biometrics of jaw models is based on photographing models with a ruler for the convenience of subsequent scaling. The photo was marked with l

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Tancu, Ana Maria Cristina, Mihaela Pantea, Alexandra Totan, Mihaela Tanase, and Marina Imre. "3D Printed Dental Models A comparative analysis." Materiale Plastice 56, no. 1 (2019): 51–54. http://dx.doi.org/10.37358/mp.19.1.5121.

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The aim of this study is to compare two different methods used for obtaining printed dental models -intraoral scanning and extraoral scanning; the comparative analysis was made in correlation to the accuracy of the traditional plaster cast model. Nine dental models were obtained: three plaster cast ones, three printed after intraoral scanning and there printed after impression scanning. A total of 137 measurements (arch and tooth measurements) were done on the three types of models and a statistical evaluation was performed (t-test, Fisher Test). Our results highlighted that 3D printed dental

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Shin, Seo Young, Yong Kwon Chae, Ko Eun Lee, et al. "Evaluating Measurements: A Comparative Study of Digital and Plaster Models for Orthodontic Applications in Mixed Dentition." JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 51, no. 1 (2024): 55–65. http://dx.doi.org/10.5933/jkapd.2024.51.1.55.

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This study aimed to assess the accuracy of tooth widths, intermolar widths, and arch lengths acquired through two intraoral scanners, including iTero Element Plus Series (Align Technology, Santa Clara, CA, USA) and Trios 4 (3Shape, Copenhagen, Denmark), specifically on mixed dentition. A total of 30 subjects were divided into 2 groups, each undergoing both alginate impressions and intraoral scanning using either the iTero or Trios scanner. The plaster models were measured with a caliper, while the digital models were measured virtually. In the iTero group, all tooth width measurements exhibite

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Siéssere, Selma, Mathias Vitti, Luiz Gustavo de Sousa, Marisa Semprini, and Simone Cecílio Hallak Regalo. "Educational material of dental anatomy applied to study the morphology of permanent teeth." Brazilian Dental Journal 15, no. 3 (2004): 238–47. http://dx.doi.org/10.1590/s0103-64402004000300014.

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The purpose of this report is to present educational material that would allow the dental student to learn to easily identify the morphologic characteristics of permanent teeth, and how they fit together (occlusion). In order to do this, macro models of permanent teeth with no attrition were carved in wax and later molded with alginate. These molds were filled with plaster, dental stone and/or cold-cured acrylic resin. The large individual dental stone tooth models were mounted on a wax base, thus obtaining maxillary and mandibular arches which were occluded. These dental arches were molded wi

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Katbeh, I., T. F. Kosyreva, N. S. Tuturov, and A. S. Birukov. "Optimization of Dentition Measurements in Orthodontic Practice." RUDN Journal of Medicine 23, no. 4 (2019): 373–80. http://dx.doi.org/10.22363/2313-0245-2019-23-4-373-380.

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Orthodontic treatment planning is a practice that depends on the accuracy of teeth and dental arches’ size measurement. The purpose of the study is to compare the accuracy and the duration of teeth and dental arches’ measurement, utilizing different approaches from conventional plaster models to virtual 3D models obtained by intraoral and extraoral scanners. Fifteen patients were included in the study (7 males, 8 females, mean age 21.7 ± 0.7 years), with a moderate anterior teeth crowding and class I Angle’s classification of malocclusion. Plaster models, as well as virtual 3D scans were obtai

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Saleh, Waleed K., Emy Ariffin, Martyn Sherriff, and Dirk Bister. "Accuracy and reproducibility of linear measurements of resin, plaster, digital and printed study-models." Journal of Orthodontics 42, no. 4 (2015): 301–6. http://dx.doi.org/10.1179/1465313315y.0000000016.

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Cousley, Richard. "Accuracy and Reproducibility Of Linear Measurements Of Resin, Plaster, Digital and Printed Study-Models." Journal of Orthodontics 42, no. 4 (2015): 272. http://dx.doi.org/10.1080/14653125.2015.1122915.

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Yoo, Jo-Kwang, Yoon-Koo Kang, Su-Jung Lee, Seong-Hun Kim, and Cheol-Hyun Moon. "Accuracy of inter-arch measurements performed on digital models generated using two types of intraoral scanners: Ex vivo study." Journal of The Korean Dental Association 58, no. 4 (2020): 194–205. http://dx.doi.org/10.22974/jkda.2020.58.4.001.

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Objective: The purpose of this study was to evaluate the accuracy of the inter-arch relationship of digital models generated using two types of intraoral scanners. Methods: In total, 34 plaster model samples were used. Two corresponding digital models were created using two types of intraoral scanners. A total of 15 variables were measured. The plaster model was directly measured using a digital caliper, while the digital models were measured using a software. The accuracy of the measurements was evaluated using repeated measures analysis of variance and the Friedman test. Results: Among the 1

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Duarte, Danilo Maciel, Walace Henry Miranda Coimbra, Francisco Fernando Massola Filho, Caio Marques Martins, Sílvio Mecca Júnior, and Geraldo Alberto Pinheiro de Carvalho. "ACCURACY OF DIFFERENT RESINS USED IN 3D PRINTING OF DENTAL MODELS: IN VITRO STUDY." Revista CPAQV - Centro de Pesquisas Avançadas em Qualidade de Vida 17, no. 1 (2025): 11. https://doi.org/10.36692/v17n1-17.

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In this study, 3D printing resins were evaluated, using digital light processing technology, verifying their accuracy. For this, a plaster model was produced from a prefabricated synthetic resin model, which was scanned by a SHINING bench scanner, generating an STL file. This file was used as reference measurements, from which they were printed by a 3D printer, DLP Anycubic Photon, thirty models (N=30) with 3 different 3D printing resins (n=10), namely: Low Smell Skin, Prizma 3D - Model - DM-300 and Smart Print LCD Model. After printing the resin models were also scanned. The reproduction accu

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Džemidžić, Vildana, Velida Nukić, and Alisa Tiro. "Tooth size discrepancy: Digital vs manual measurement." Balkan Journal of Dental Medicine 28, no. 2 (2024): 129–32. http://dx.doi.org/10.5937/bjdm2402129d.

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Background/Aim: The aim of this study was to determine the accuracy of overall and anterior Bolton's ratio measurements obtained with an intraoral scanner compared to standard caliper measurements on plaster models. Material and Methods: This study included 33 subjects (18 female and 15 male), aged 12 to 18 years. All subjects were taken impression for the purpose of making study plaster models. In addition, all subjects underwent intraoral scanning for the purpose of creating digital models. Tooth width was measured with a caliper on plaster models, while digital models were analyzed using Ce

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Muralidharan, Dhanasekaran. "Evaluation of efficacy, treatment outcome, and stability of tooth movement with clear aligner treatment (Mysmartalign) - Clinical study." Journal of the Indian Dental Association Tamil Nadu 14, no. 2 (2024): 18. http://dx.doi.org/10.26634/jidat.14.2.20659.

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The study was conducted to evaluate the efficacy, treatment outcomes, and stability of tooth movement with clear aligner therapy. Fifty subjects were selected for aligner treatment and followed a retention protocol as instructed by the orthodontist. To calculate efficacy, changes in Little's Irregularity Index from T0 to T4, T0 to T6, and T0 to T8 of clinical plaster models were compared with STL models for both the maxilla and mandible. A comparison of pre-treatment and posttreatment PAR scores was performed to assess treatment outcomes. Stability was evaluated using the PAR score by comparin

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Shetty, Shravan, Srikant Natarajan, Supriya Nambiar, Prithvi Shetty, Kavery Chengappa, and Mukul Shetty. "An evaluation of concordance between linear measurements obtained from conventional, digital and reconstructed three-dimensional printed orthodontic models: An in vitro study." Acta Marisiensis - Seria Medica 68, no. 4 (2022): 159–63. http://dx.doi.org/10.2478/amma-2022-0028.

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Abstract Objective: To evaluate the potential use of digital and reconstructed three-dimensional printed models as an alternative to conventional plaster models by assessing the accuracy of their linear measurements. Methodology: Pre-treatment plaster models of 45 patients were selected from the archives of the Department of Orthodontics. Each physical plaster model was scanned and digitized using a three-dimensional (3D) laser surface scanning system (inEOS X5, Dentsply Sirona, Bensheim, Germany). The scanned STL files were later used to reconstruct models by 3D printing using Figure4® standa

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Lo Giudice, Antonino, Simone Muraglie, Stefano Martina, Vincenzo Ronsivalle, and Rosalia Leonardi. "Accuracy and Reliability of Space Analysis Measurements in Digital Models with Different Degrees of Crowding." Open Dentistry Journal 13, no. 1 (2019): 505–11. http://dx.doi.org/10.2174/1874210601913010505.

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Background: With the introduction of digital systems in the orthodontic field, it is not still clear if such systems can accurately substitute analogical systems in the diagnosis and orthodontic treatment plane. Objective: The study compared the Arch Length Discrepancy (TALD) and Bolton ratio obtained from plaster dental casts (gold standard) and digital models and tested the null hypothesis that TALD and Bolton ratio measurements in digital models are affected by the degree of crowding. Methods: The sample included 40 dental models divided into five sub-groups, according to the American Board

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Jacquet, Wolfgang, Edgard Nyssen, Gabriele Ibel, and Bart Vande Vannet. "On the augmented reproducibility in measurements on 3D orthodontic digital dental models and the definition of feature points." Australasian Orthodontic Journal 29, no. 1 (2013): 28–33. http://dx.doi.org/10.2478/aoj-2013-0005.

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Abstract Objective: The objective of this study was to explore digital measurement methodology on 3-dimensional (3D) dental models. Standardised manipulation and practices have lead to reliable measurements on plaster casts. Identifying landmarks on digital models or digitised plaster casts is fundamentally different from actual measurements. Three-dimensional models are represented on flat screens and landmarks are individually indentified. A procedure is proposed that resolves the deficiencies associated with a 2-dimensional (2D) display through an appropriate model representation and throug

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Whetten, Josh. "Variation in orthodontic treatment planning decisions of Class II cases between virtual 3D models and traditional plaster study models." American Journal of Orthodontics and Dentofacial Orthopedics 128, no. 2 (2005): 262. http://dx.doi.org/10.1016/j.ajodo.2005.05.003.

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Verma, Sanjeev, RajKumar Verma, SatinderPal Singh, Vinay Kumar, NamekshRaj Bhupali, and Sohail Arora. "Comparison of reliability, validity, and accuracy of linear measurements made on pre- and posttreatment digital study models with conventional plaster study models." journal of orthodontic science 8, no. 1 (2019): 18. http://dx.doi.org/10.4103/jos.jos_14_19.

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Asquith, J. A., and G. T. McIntyre. "Dental Arch Relationships on Three-Dimensional Digital Study Models and Conventional Plaster Study Models for Patients with Unilateral Cleft Lip and Palate." Cleft Palate-Craniofacial Journal 49, no. 5 (2012): 530–34. http://dx.doi.org/10.1597/10-099.

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Emara, Aalaa, Neha Sharma, Florian S. Halbeisen, Bilal Msallem, and Florian M. Thieringer. "Comparative Evaluation of Digitization of Diagnostic Dental Cast (Plaster) Models Using Different Scanning Technologies." Dentistry Journal 8, no. 3 (2020): 79. http://dx.doi.org/10.3390/dj8030079.

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Rapidly developing digital dental technologies have substantially simplified the documentation of plaster dental models. The large variety of available scanners with varying degrees of accuracy and cost, however, makes the purchase decision difficult. This study assessed the digitization accuracy of a cone-beam computed tomography (CBCT) and an intraoral scanner (IOS), as compared to a desktop optical scanner (OS). Ten plaster dental models were digitized three times (n = 30) with each scanner. The generated STL files were cross-compared, and the RMS values were calculated. Conclusions were dr

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Tavares, Alana, Emanuel Braga, and Telma Martins de Araújo. "Digital models: How can dental arch form be verified chairside?" Dental Press Journal of Orthodontics 22, no. 6 (2017): 68–73. http://dx.doi.org/10.1590/2177-6709.22.6.068-073.oar.

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ABSTRACT Introduction: Plaster dental casts are routinely used during clinical practice to access maxillary dental arch form and assist on fabrication of individualized orthodontic archwires. Recently introduced, digital model technology may offer a limitation for the obtainment of a dental physical record. In this context, a tool for dental arch form assessment for chairside use is necessary when employing digital models. In this regard, paper print of the dental arch seems thus to be useful. Methods: In the present study, 37 lower arch models were used. Intercanine and intermolar widths and

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Cristache, Corina Marilena, Eugenia Eftimie Totu, Irina Adriana Beuran, Elena Mihaela Carausu, Tiberiu Totu, and Liliana Burlibasa. "Virtual Models Obtained via Intraoral Scanning as Alternated to Clinical Evaluation and b-Hemihydrate Plaster Models." Revista de Chimie 70, no. 10 (2019): 3753–58. http://dx.doi.org/10.37358/rc.19.10.7640.

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Digital scanners are currently use in various fields of dentistry such as prosthodontics, dental implantology, orthodontics, with a high degree of accuracy, mostly for replacing conventional impressions. The aim of the present study was to assess the accuracy (trueness and precision) of gingival margin measurements, on virtual models obtained by intraoral scanning, for precise diagnosis and treatment monitoring of periodontal disease. Three methods were compared for accuracy: clinical measurements using periodontal probes, digital intraoral scanning and measurements in MeshLab software and 2D

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Santana, Ivone Lima, Cibelly de Fátima Vieira Ferreira, Gabriel Cutrim Silva, and Joaquim Rodrigues Mochel Filho. "Simulation of Tooth Preparation: Innovating the Prosthodontics’ Study in Times of Pandemic." ARCHIVES OF HEALTH INVESTIGATION 11, no. 2 (2021): 322–24. http://dx.doi.org/10.21270/archi.v11i2.5593.

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The aim of this study was to report a simulation active learning methodology, used in a School Clinic, from the Bachelor’s Degree in Dentistry at Federal University of Maranhão (UFMA) for refining students’ psicomotor capability and critical-cognitive reasoning, related to the competence to make tooth preparation. Proposed simulation was making some plaster models from a partial molding of interest region, using dental material with dimensional stability. Thus, three models were obtained, in plaster type IV, in which two models were destined to the operator and another to the assistant. Operat

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