Relevant bibliographies by topics / Aligners

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Aligners'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 June 2025

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Journal articles on the topic "Aligners"

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Налбандян, М. С., Г. Ю. Тер-Погосян та Э. Р. Казарян. "ПЕРСПЕКТИВЫ ПРИМЕНЕНИЯ ЭЛАЙНЕРОВ В СОВРЕМЕННОЙ ОРТОДОНТИИ". MEDICINE, SCIENCE AND EDUCATION, № 33 (травень 2022): 122–24. http://dx.doi.org/10.56936/18291775-2022.33-122.

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The clear aligner treatment in the last years has been increasing its relevance and use. The use of aligners to treat malocclusion has had a remarkable surge in the last decades, a growing interest has been reported for such methods of invisible orthodontics, especially among adult patients. Clear aligners are orthodontic devices that use elastic thermoplastic material, applying pressure to the teeth to move into the aligner’s position, being an alternative to dental braces. They are esthetic, efficient, and comfortable compared to a traditional fixed appliance for mild-to-moderate malocclusion. A clinician should know strengths and weaknesses of aligners for a correct use, being guided by clinical indications. The present paper will highlight the increasing popularity of clear aligner appliances, as well as the clinical scope and the limitations of aligner therapy in general.
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Elshazly, Tarek M., Ludger Keilig, Yasmine Alkabani, et al. "Primary Evaluation of Shape Recovery of Orthodontic Aligners Fabricated from Shape Memory Polymer (A Typodont Study)." Dentistry Journal 9, no. 3 (2021): 31. http://dx.doi.org/10.3390/dj9030031.

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As an innovative approach to overcome the rate-limiting staging of conventional aligners, using shape memory polymers (SMPs) as aligners’ materials was investigated in this in vitro study. The ability of SMPs to shape recover and consequently move tooth, upon appropriate stimuli, was evaluated on a typodont model before clinical application. The study design was to achieve 1.9 mm correction movement of an upper central incisor by one aligner after multiple steps/activation. A custom-made aligned typodont model with a movable upper central incisor was scanned. Using an orthodontic software and a 3D printer, resin-models were generated. Seven aligners of ClearX sheets (SMPs) were fabricated by thermoforming on the resin aligned model. Each aligner was tested for repositioning of the central incisor in the typodont model. The model was scanned after each step and the corrective movement was measured through the superimposition of scans. Results showed that the total correction efficiency of the SMPs’ aligner was ≈93% (1.76 mm). The corrective movement was 0.94 ± 0.04 mm after the reforming step, 0.66 ± 0.07 mm after the first activation step, and 0.15 ± 0.10 mm after the second activation step. It was concluded that aligners made of SMPs could have a promising future-use in orthodontic aesthetic treatment.
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Dhanu, Sri T., Angrish Nidhi, Chandrasekharan Deepak, et al. "Pain Level in Clear Aligners and its Effects in Speech- Literature Review." International Journal of Current Science Research and Review 07, no. 10 (2024): 8048–52. https://doi.org/10.5281/zenodo.14005681.

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Abstract : In place of traditional braces for orthodontic treatment, clear aligners are becoming more and more popular because of their aesthetic appeal and convenience. Nonetheless, many patients report experiencing pain and discomfort, particularly during the initial adjustment period or when switching to a new set of aligners. The aligners’ pressure, which shifts teeth into their desired positions, primarily causes this discomfort. Research shows that pain levels usually peak within the first 24 to 48 hours after starting a new aligner and gradually subside over time. Various factors, including an individual’s pain threshold, the complexity of tooth movements, and the fit of the aligners, contribute to differences in pain intensity. Moreover, clear aligners can impact speech, especially during the early phases of treatment. Patients frequently experience temporary lisping or challenges in articulating certain sounds because of the thickness and placement of the aligners. Although these speech changes are generally mild and improve as patients adapt, they can lead to short-term discomfort in social and professional situations. In conclusion, both the pain and speech issues associated with clear aligners are typically manageable and tend to diminish as treatment progresses, although they may influence patient compliance and satisfaction during the initial adjustment phase.
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Bae, Gi-Sun. "Clinical limitations and its solutions of the digital clear aligner treatment." Journal of The Korean Dental Association 62, no. 5 (2024): 317–28. http://dx.doi.org/10.22974/jkda.2024.62.5.005.

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The digital clear aligner is widely used due to the convenience and efficiency of simultaneously manufacturing the entire aligner used in treatment with a single setup. However, due to the characteristics of clear aligners, which make it difficult to effectively transmit orthodontic force to the teeth compared to traditional brackets, the teeth do not move as planned, resulting in repeated refinements and increased treatment periods. The following measures have been proposed to solve these problems:1. Partial production of Clear aligner: Manufacturing the entire aligner not all at once but in stages, typically 8-10 at a time, allows for more precise management of the individual tooth movement. Additionally, adjustments can be made promptly if treatment does not go as planned.2. Direct 3D printing of clear aligners: Direct 3D printing offers the possibility of creating more efficient aligners that adhere more closely to the teeth than vacuum-formed ones. Moreover, effective tooth movement can be achieved by adjusting the aligner's thickness or designing structures to apply orthodontic forces as required.3. Digital hybrid treatment: Using 3D-printed brackets with two strands of NiTi wire allows for rapid and accurate tooth movement with gentle force. In particular, the ability to manufacture clear aligners and 3D-printed brackets together in a single digital setup enables various clinical applications. This not only shortens the treatment period but also allows for better treatment results.
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Chakraborty, Arunima, Sumita Mishra, and Ananya Panda. "Limitation of Aligners and How to Overcome Them." International Research Journal of Multidisciplinary Scope 05, no. 02 (2024): 577–82. http://dx.doi.org/10.47857/irjms.2024.v05i02.0581.

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Aligners are a popular choice for many people seeking Orthodontic treatment due to their aesthetic appeal and convenience. They offer a more discreet alternative to traditional braces, as they are difficult to notice when worn. Along with that it provides an excellent substitute in the era of three-dimensional treatment planning. Clear aligners gradually exert gentle forces on the teeth, moving them incrementally until they reach the desired alignment. The aligner trays are designed to apply pressure to specific areas of your teeth, gradually shifting them into the correct position. The treatment process continues until all the teeth are properly aligned and bite is optimized. Earlier clear aligner treatment was considered to be utilized for the simpler cases, but with advancements it is proved that aligners can be one of the many possibilities for extraction cases, open bite, deep bite, interceptive and even for hybrid approaches. However, aligners may not be suitable for all Orthodontic treatment modalities, especially those requiring significant jaw alignment or complex tooth movements. This review focuses on the limitations and constraints of the type of movements provided by the clear aligners. Furthermore, this will assess the possibilities to overcome these obstacles for better performances in the near future.
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Shah, Manan Jignesh, Ajay Kantilal Kubavat, Khyati Viral Patel, and Nikunj Harikrishna Prajapati. "Fabrication of in-house aligner- A review." Journal of Contemporary Orthodontics 6, no. 3 (2022): 120–24. http://dx.doi.org/10.18231/j.jco.2022.022.

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As the demand for aesthetic treatments is increasing, more people are seeking alternatives to fixed orthodontic appliances. Clear align­ers are aesthetically pleasing and comfortable option for orthodontic treatment and have gained immense popularity over the last decade. Moreover, with increasing demand there has been a constant attempt for cost reductions by number of aligner companies and laboratories. It will be beneficial not only to orthodontist but also to patients if aligners can be fabricated in-house itself. Thus, this review will highlight the fabrication of In-house aligners in detail.
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Cremonini, Francesca, Marta Cappelletti, Luca Brucculeri, Virginia Olivero, and Luca Lombardo. "An In Vitro Comparison Study Regarding Retention Force Expressed by Thermoformed Aligners and 3D-Printed Aligners with Different Thickness and Design." Applied Sciences 15, no. 3 (2025): 1345. https://doi.org/10.3390/app15031345.

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Background: Retention is a critical aspect of orthodontic treatment with aligners as it counteracts vertical displacing forces and ensures greater predictability of tooth movement. The aim of this study is to evaluate and compare the retention effectiveness of 3D-printed aligners and thermoformed aligners, analyzing how margin design and thickness gradients affect retention under different occlusal conditions. Methods: Tensile tests were conducted using a Sauter TVO-A01 machine, recording the force required to displace each aligner from the models. Quantitative data on the retention force of each aligner were collected based on malocclusion type and design specifics. Results: Scalloped thermoformed aligners demonstrated significantly lower retention values (p = 0.029) compared to 3D-printed aligners with high margins with horizontal and vertical gradients. Scalloped margin aligners exhibited significantly lower retention values (p = 0.008) compared to straight margin aligners. Additionally, 3D-printed aligners with uniform thickness gradients had significantly lower retention values (p = 0.040) compared to thermoformed aligners. Conclusions: The 3D printing production process enables customizable designs tailored to the unique characteristics of each patient. High-margin 3d-printed aligners with horizontal and vertical gradients provide superior retention, particularly in complex clinical situations such as dental crowding.
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Devi, Sumithra, Ramya Rajendran, Priyanka Selvaraj, Sruthi Jeevagan, and Mora Sathi Rami Reddy. "A scanning electron microscope evaluation of surface roughness of different clear aligners – A comparative in-Vitro study." IP Indian Journal of Orthodontics and Dentofacial Research 10, no. 3 (2024): 177–84. http://dx.doi.org/10.18231/j.ijodr.2024.032.

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Clear aligner are thermoplastic polyurethane materials which produces small increments of tooth movements by each aligner tray. Clinical effectiveness of the treatment largely depend on the mechanical properties of the material. The use of scanning electron microscopy (SEM) in invitro environment allows to evaluate the surface morphology of the aligners The aim of the study is to compare the surface roughness of different types of clear aligners after thermoforming and after invitro aging. A sample of 15 aligners from Group A (DURAN), Group B (ERKODUR), Group C (MONOFLEX) were taken for this study. After screening the subjects were scanned by intraoral scanner and STL file were imported to Maestero 3D software. Then resin models were printed and aligners were fabricated in the models by thermoforming machine. The first set of aligners were scanned by Scanning Electron Microscope and another set of aligners were placed in chewing simulator for simulating intraoral environment. Then the second set of aligners were sent for SEM evaluation. Mean comparison of surface roughness and root mean square surface roughness was compared by paired t test and comparison among the groups was done by one way ANOVA test. The surface roughness of both aligners increased after thermoforming. This could be due to thermoforming process which could be due to temperature variation. After the ageing of the aligners in the invitro environment, there is homogenous and smooth layer of the aligner surfaces which could be due to adhesion of biofilm and polishing effect by chewing strokes.
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Barile, Claudia, Claudia Cianci, Vimalathithan Paramsamy Kannan, et al. "Experimental assessment of damage and microplastic release during cyclic loading of clear aligners." PLOS ONE 20, no. 2 (2025): e0318207. https://doi.org/10.1371/journal.pone.0318207.

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The widespread adoption of clear aligners in orthodontic treatments in recent years has necessitated a more precise examination of the mechanical properties of the devices currently available in orthodontics. Recent studies indicate that aligners, when exposed to the forces exerted during swallowing, undergo fatigue-like phenomena, leading to chip formation and cracks. The cumulative damage results in a compromised fit between the tooth and aligner, which is crucial for the effective execution of orthodontic treatment. Additionally, the formation of chips poses a potential risk to patients, as there is a possibility of inadvertently ingesting microplastics that become detached from the aligner over time. This study attempts to assess the release of microplastics from the aligners subjected to cyclic compressive loading. Three different aligners (Essix Ace, Ghost Aligner and Invisalign) are tested to simulate swallowing conditions over the aligner usage period. The mechanical performance is studied in terms of the energy absorbed by the aligner, which shows that the Essix Ace has a stable energy absorption behaviour, while the energy absorbed by the Invisalign is significantly higher than their counterparts. Ghost Aligner did not perform well in the cyclic compression tests. The microplastics (MPs) released by the aligners are examined under an optical microscope. A dimensional analysis based on k-means image segmentation and edge detection algorithm is developed to analyse the MPs. The dimensional analysis of the MPs revealed that the ingestion of the MPs released by all the three aligners does not pose a health risk.
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Ravuri, Preetham, Ajay K. Kubavat, Vipul Rathi, et al. "Effectiveness and Biocompatibility of Tooth Aligners Made from Polyethylene Terephthalate Glycol (PeT-G), Polypropylene (PP), Polycarbonate (PC), Thermoplastic Polyurethanes (TPUs), and Ethylene-Vinyl Acetate (EVA): A Systematic Review." Journal of Pharmacy and Bioallied Sciences 16, Suppl 1 (2024): S93—S96. http://dx.doi.org/10.4103/jpbs.jpbs_883_23.

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ABSTRACT Objective: This systematic review examines the efficacy and biocompatibility of orthodontic clear aligner tooth aligners constructed from polyethylene terephthalate glycol (PeT-G), polypropylene (PP), polycarbonate (PC), thermoplastic polyurethanes (TPUs), and ethylene-vinyl acetate (EVA). Materials and Methods: To find relevant papers published through September 2021, PubMed was searched extensively. Randomized clinical trials (RCTs) and observational studies assessing the effectiveness and biocompatibility of the aligner materials were included. Data were extracted independently, and the quality of included research was appraised using relevant procedures. The research variability necessitated a narrative synthesis. Results: Five studies were included for comparison. All materials were biocompatible; however, PeT-G and EVA aligners caused the least tissue irritation. Patients preferred TPU aligners for initial comfort and PeT-G aligners for transparency and endurance. Conclusion: Biocompatible PeT-G, PP, PC, TPU, and EVA tooth aligners fix malocclusions. Aligner materials should be chosen based on patient preferences, treatment goals, and material qualities. For stronger proof, a longer-term study is needed.
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Dissertations / Theses on the topic "Aligners"

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Ceesay, Ismaila. "Aligners, lovers and deceptors : aspirations and strategies of young urban hustlers in the Gambia." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/22956.

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This study investigates young Gambians’ social and economic aspirations. It considers how young Gambians’ aspirations are shaped and negotiated, and the strategies they employ to achieve their objectives. Whilst existing research tends to view young Gambians’ social and economic advancement through a lens of international migration, this study focuses on the aspirations and strategies of those who find themselves in a state of ‘involuntary immobility’ – that is, an aspiration to migrate but the inability to do so. The study looks at how two groups of young urban Gambians from low socio-economic backgrounds pursue local livelihoods. Known as ‘beach hustlers’ and ‘chanters’, these youths take advantage of the resources of the tourism sector and of opportunities provided by information and communication technologies (ICT) in an attempt to fulfil their aspirations. Drawing on data collected from multi-sited ethnographic fieldwork conducted between 2013 and 2014 in Kololi, the country’s main tourism hotspot on the shore of the Atlantic Ocean, and Brikama, where internet use in cybercafés has rapidly grown over the past two decades, I use the cases of ‘beach hustlers’ and ‘chanters’ (cyber hustlers) to shed light on the life-trajectories of young Gambians. I discuss how ‘beach hustlers’ take advantage of the Gambia’s booming tourism industry by engaging in diverse informal economic activities. I then consider how ‘chanters’ accumulate wealth by employing various methods and ruses in their interactions with toubabs (white westerners) through internet-mediated encounters. This study shows that the majority of young Gambians who find it increasingly difficult to migrate to the West pursue local livelihoods to fulfil their aspirations of social and economic advancement. The aspirations and strategies of the hustlers in this study are shaped and influenced by intervening social, cultural and religious obligations and expectations. The study argues that the formation of Gambian hustlers’ aspirations is the result of an interplay between familial and societal dynamics; such as generational and gender relations and reciprocal social exchange, and personal desires of upward social mobility. The study further shows that the strategies young Gambians employ are influenced by the structural constraints and opportunities that appear in specific space–time conditions. By doing so, this study contributes to the literature on the aspirations of urban youths in developing countries and the strategies they employ to achieve them, and how young people experience and respond to conditions of ‘involuntary immobility’.
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Zaverdinos, Micaela, Paul Kasrovi, James Chen, and Heesoo Oh. "Comparison of Maxillary Expansion Between Clear Aligners and Removable Expansion Appliance in the Mixed Dentition." Scholarly Commons, 2021. https://scholarlycommons.pacific.edu/dugoni_etd/20.

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Introduction: Orthodontic and orthopedic expansion is necessary to create space to resolve crowding due to arch deficiency or tooth size discrepancy. The Invisalign First clear aligner appliance as a modality for early interceptive orthodontic treatment has become incorporated into orthodontic practices in very recent years. The present study aims to investigate the magnitude of expansion of the Invisalign First clear aligner appliance compared to a Schwartz removable expander in patients with mixed dentition. Additionally, the study aims to compare the efficacy and predictability of Invisalign First clear aligners in this population. Materials & Methods: In this retrospective study, a sample was collected from a single orthodontist practitioner. The sample consisted of 34 patients, 16 patients treated with Invisalign First clear aligners only (Group1) and 19 patients treated with a Schwartz removable appliance and Invisalign First clear aligners (Group 2). Intraoral scans of four timepoints, initial (T1), post-expansion for Group 2 only (T1Exp), first refinement (T2), and final (T3), and planned Clincheck goal (P) model from Clincheck software were imported to Align Technology’s digital measure program (Quantify©). Arch widths and molar inclinations were measured at each timepoint and the changes between timepoints were calculated. Predictability of arch expansion was calculated as T13 (change between initial and final) divided by the Planned dimension multiplied by one hundred. A two sample t-test was used to assess differences in the changes in arch widths and predictability of expansion between two groups. Results: There were statistically significant differences found in the magnitude of expansion and predictability of arch expansion between two groups. Group 2 showed a greater amount of expansion and predictability. Group 1 showed about 50-60% of the planned expansion at the end of treatment. In regards to magnitude of expansion when comparing the two groups, the efficacy predictability of transverse dimensional changes were significantly greater in the Group 2 compared to Group 1, 83% vs 56% (p = 0.001), respectively. The changes in inclination were similar in both groups, with no statistically significant differences.Conclusions: There is a significantly greater amount of expansion and greater predictability with the Schwartz removable appliance compared to the Invisalign First clear aligner appliance in the mixed dentition. The predictability of Invisalign First was 56% and indicates a significant overcorrection of arch expansion is required at the virtual treatment planning stage in Clincheck in order to obtain the arch expansion that was planned
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Oguchi, Chizoba. "A Comparison of Sensitive Splice Aware Aligners in RNA Sequence Data Analysis in Leaping towards Benchmarking." Thesis, Högskolan i Skövde, Institutionen för biovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-18513.

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Bioinformatics, as a field, rapidly develops and such development requires the design ofalgorithms and software. RNA-seq provides robust information on RNAs, both alreadyknown and new, hence the increased study of the RNA. Alignment is an important step indownstream analyses and the ability to map reads across splice junctions is a requirement ofan aligner to be suitable for mapping RNA-seq reads. Therefore, the necessity for a standardsplice-aware aligner. STAR, Rsubread and HISAT2 have not been singly studied for thepurpose of benchmarking one of them as a standard aligner for spliced RNA-seq reads. Thisstudy compared these aligners, found to be sensitive to splice sites, with regards to theirsensitivity to splice sites, performance with default parameter settings and the resource usageduring the alignment process. The aligners were matched with featureCounts. The resultsshow that STAR and Rsubread outperform HISAT2 in the aspects of sensitivity and defaultparameter settings. Rsubread was more sensitive to splice junctions than STAR butunderperformed with featureCounts. STAR had a consistent performance, with more demandon the memory and time resource, but showed it could be more sensitive with real data.
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ROSSINI, GABRIELE. "FINITE ELEMENT ANALYSIS OF CLEAR ORTHODONTIC ALIGNERS' BIOMECHANICS: FROM CAD-FE FRAMEWORK DESIGN TO CLINICAL OPTIMIZATION." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2858347.

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Olson, Jeffrey C. "Comparison of Patient Factors Influencing the Selection of an Orthodontist, General Dentist, or Direct-To-Consumer Aligners for Orthodontic Treatment." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5766.

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Purpose: To evaluate the factors that influence potential orthodontic patients choosing between an orthodontist, general dentist, and direct-to-consumer (DTC) aligners for their treatment, and to determine the demand for each provider type. Methods: An electronic survey was administered to 250 individuals among the general population of adults in the United States. Questions were designed to determine the respondent’s level of interest in pursuing orthodontic treatment with each provider type, evaluate their current level of knowledge concerning provider options, and identify factors influencing their selection. Pearson’s chi-squared test and ANOVA were used to evaluate the factors influencing patients in their selection. Results: When asked their preference in provider type, 43.8% of respondents selected orthodontist, 34.1% selected DTC aligners, and 22.1% selected general dentist. Among respondents with the highest level of interest in pursuing orthodontic treatment, 50% selected an orthodontist and 27% selected DTC aligners. For respondents with moderate levels of interest in pursuing treatment, only 21% selected an orthodontist and 48% selected DTC aligners. The biggest perceived advantage of treatment with an orthodontist was quality of treatment, and the biggest disadvantage was cost. For DTC aligners, the biggest perceived advantage was convenience, followed by cost, and the biggest disadvantage was quality of treatment. Among adults with children, 34% selected DTC aligners for themselves and only 16% selected DTC aligners when selecting for their children. Conclusion: Adults in the United States have similar levels of interest in pursuing orthodontic treatment with orthodontists and DTC aligners and, to a lesser degree, general dentists. A significant portion of those who select DTC aligners for their treatment are patients who would not have otherwise undergone treatment with an orthodontist. Patients tend to select orthodontists due to quality of treatment, whereas DTC aligners are selected due to convenience, followed by cost. Even among parents who prefer DTC aligners for their own treatment, parents tend to select an orthodontist for their child’s treatment.
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Cole, David J. "Evaluation of fit for 3D printed retainers as compared to thermoform retainers." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5332.

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ABSTRACT EVALUATION OF FIT FOR 3D PRINTED RETAINERS AS COMPARED TO THERMOFORM RETAINERS By David Cole, D.M.D. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Dentistry at Virginia Commonwealth University Thesis Directors: Eser Tüfekçi, D.D.S., M.S., Ph.D., M.S.H.A. Professor, Department of Orthodontics Sompop Bencharit, D.D.S., M.S., Ph.D. Associate Professor and Director of Digital Dentistry, Department of General Practice Introduction: Despite recent advances in three-dimensional (3D) printing, little information is available on 3D printed retainers Methods: Three reference models were used to fabricate traditional vacuum formed, commercially-available vacuum formed, and 3D printed retainers. For each model, three retainers were made using the three methods (a total of 27 retainers). To determine the trueness, the distances between the intaglio surface of the retainers and the occlusal surface of the reference models were measured using an engineering software. A small difference was indicative of a good fit. Results: Average differences of the traditional vacuum formed retainers ranged from 0.10 to 0.20mm. The commercially-available and 3D printed retainers had a range of 0.10 to 0.30mm and 0.10 to 0.40mm, respectively. Conclusions: The traditional vacuum formed retainers showed the least amount of deviation from the original reference models while the 3D printed retainers showed the greatest deviation.
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Lenis, Josefina. "Execution strategies for memory-bound applications on NUMA systems." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/666763.

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En los últimos años, muchas herramientas de alineadores de secuencias han aparecido y se han hecho populares por la rápida evolución de las tecnologías de secuenciación de próxima generación (NGS). Obviamente, los investigadores que usan tales herramientas están interesados en obtener el máximo rendimiento cuando los ejecutan en infraestructuras modernas. Las arquitecturas NUMA (acceso no uniforme a memoria) de hoy en día presentan grandes desafíos para lograr que dichas aplicaciones logren una buena escalabilidad a medida que se utilizan más procesadores/núcleos. El sistema de memoria en los sistemas NUMA muestra una alta complejidad y puede ser la causa principal de la pérdida del rendimiento de una aplicación. La existencia de varios bancos de memoria en sistemas NUMA implica un aumento lógico en la latencia asociada con los accesos de un procesador dado a un banco remoto. Este fenómeno generalmente se atenúa mediante la aplicación de estrategias que tienden a aumentar la localidad de los accesos a la memoria. Sin embargo, los sistemas NUMA también pueden sufrir problemas de contención que pueden ocurrir cuando los accesos concurrentes se concentran en un número reducido de bancos. Las herramientas de alineadores de secuencia usan estructuras de datos grandes para contener genomas de referencia a los que se alinean todas las lecturas. Por lo tanto, estas herramientas son muy sensibles a los problemas de rendimiento relacionados con el sistema de memoria. El objetivo principal de este estudio es explorar las ventajas y desventajas entre la ubicación de datos y la dispersión de datos en los sistemas NUMA. Hemos introducido una serie de pasos metódicos para caracterizar las arquitecturas NUMA y ayudar a comprender el potencial de los recursos. Con esta información, diseñamos y experimentamos con varias herramientas de alineación de secuencias populares, en dos sistemas NUMA ampliamente disponibles para evaluar el rendimiento de diferentes políticas de asignación de memoria y estrategias de replicación y partición de datos. Encontramos que no hay un método que sea el mejor en todos los casos. Sin embargo, concluimos que aplicar “interleave” a la memoria es la política de asignación de memoria que proporciona el mejor rendimiento cuando se utiliza una gran cantidad de procesadores y bancos de memoria. En el caso de la partición y replicación de datos, los mejores resultados se obtienen generalmente cuando el número de particiones utilizadas es mayor, a veces combinado con una política de “interleave”.<br>Over the last several years, many sequence alignment tools have appeared and become popular thanks to the fast evolution of next-generation sequencing (NGS) technologies. Researchers that use such tools are interested in getting maximum performance when they execute them in modern infrastructures. Today’s NUMA (Non-Uniform Memory Access) architectures present significant challenges in getting such applications to achieve good scalability as more processors/cores are used. The memory system in NUMA systems shows a high complexity and may be the primary cause for the loss of an application’s performance. The existence of several memory banks in NUMA systems implies a logical increase in latency associated with the accesses of a given processor to a remote bank. This phenomenon is usually attenuated by the application of strategies that tend to increase the locality of memory accesses. However, NUMA systems may also suffer from contention problems that can occur when concurrent accesses are concentrated on a reduced number of banks. Sequence alignment tools use large data structures to contain reference genomes to which all reads are aligned. Therefore, these tools are very sensitive to performance problems related to the memory system. The main goal of this study is to explore the trade-offs between data locality and data dispersion in NUMA systems. We introduced a series of methodical steps to characterize NUMA architectures and to help understand the potential of the resources. With this information we designed and experimented with several popular sequence alignment tools on two widely available NUMA systems to assess the performance of different memory allocation policies and data partitioning and replication strategies. We find that there is not one method that is best in all cases. However, we conclude that memory interleaving is the memory allocation policy that provides the best performance for applications using large centralized data structured on a large number of processors and memory banks. In the case of data partitioning and replication, the best results are usually obtained when the number of partitions used is higher, and in some cases, combined with an interleaving policy.
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Mikhaiel, Bishoy [Verfasser]. "The effect of composite attachments on the force and moment systems generated by thermoplastic PET-G aligners during the rotation of a mandibular canine : an in-vitro study / Bishoy Mikhaiel." Ulm : Universität Ulm, 2019. http://d-nb.info/1194465900/34.

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Hariri, Farah. "FENICIA : un code de simulation des plasmas basé sur une approche de coordonnées alignées indépendante des variables de flux." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4760/document.

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Ce travail porte sur le développement et la vérification d’une nouvelle approche de coordonnées alignées FCI (Flux-Coordinate Independent), qui tire partie de l’anisotropie du transport dans un plasma immergé dans un fort champ magnétique. Sa prise en compte dans les codes numériques permet de réduire grandement le coût de calcul nécessaire pour une précision donnée. Une particularité de l’approche nouvellement développée dans ce manuscrit est en particulier sa capacité à traiter, pour la première fois, des configurations avec point X. Toutes ces analyses ont été conduites avec FENICIA, code modulaire entièrement développé dans le cadre de cette thèse, et permettant la résolution d’une classe de modèles génériques. En résumé, la méthode développée dans ce travail est validée. Elle peut s’avérer pertinente pour un large champ d’application dans le contexte de la fusion magnétique. Il est montré dans cette thèse que cette technique devrait pouvoir s’appliquer aussi bien aux modèles fluides que gyrocinétiques de turbulence, et qu’elle permet notamment de surmonter un des problèmes fondamentaux des techniques actuelles, qui peinent à traiter de manière précise la traversée de la séparatrice<br>The primary thrust of this work is the development and implementation of a new approach to the problem of field-aligned coordinates in magnetized plasma turbulence simulations called the FCI approach (Flux-Coordinate Independent). The method exploits the elongated nature of micro-instability driven turbulence which typically has perpendicular scales on the order of a few ion gyro-radii, and parallel scales on the order of the machine size. Mathematically speaking, it relies on local transformations that align a suitable coordinate to the magnetic field to allow efficient computation of the parallel derivative. However, it does not rely on flux coordinates, which permits discretizing any given field on a regular grid in the natural coordinates such as (x, y, z) in the cylindrical limit. The new method has a number of advantages over methods constructed starting from flux coordinates, allowing for more flexible coding in a variety of situations including X-point configurations. In light of these findings, a plasma simulation code FENICIA has been developed based on the FCI approach with the ability to tackle a wide class of physical models. The code has been verified on several 3D test models. The accuracy of the approach is tested in particular with respect to the question of spurious radial transport. Tests on 3D models of the drift wave propagation and of the Ion Temperature Gradient (ITG) instability in cylindrical geometry in the linear regime demonstrate again the high quality of the numerical method. Finally, the FCI approach is shown to be able to deal with an X-point configuration such as one with a magnetic island with good convergence and conservation properties
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Moel, Modiano Alberto. "An aligner for X-ray nanolithography." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/11991.

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Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.<br>Includes bibliographical references (leaves 159-172).<br>by Albert Moel Modiano.<br>Sc.D.
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Books on the topic "Aligners"

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1963-, Karr Allan, ed. Church turned inside out: A guide for designers, refiners, and re-aligners. Jossey-Bass, 2010.

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Bergquist, Linda. Church turned inside out: A guide for designers, refiners, and re-aligners. Jossey-Bass, 2010.

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Steffen, Jim. Aligned Thinking. Berrett-Koehler Publishers, Inc., 2010.

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Huang, Anderson T., and Darren Huang. Controversies in Clear Aligner Therapy. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92810-0.

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Abela, Stefan. Aligner Systems in Invisible Orthodontics. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-49204-4.

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Ren, Zhifeng, Yucheng Lan, and Yang Wang. Aligned Carbon Nanotubes. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-30490-3.

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Cader, Muhanned. Non-aligned, 2011. Barefoot Gallery, 2011.

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Chaudhary, K. C. Non-aligned summitry. Capital Pub. House, 1988.

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I, Kovalenko I., and Tuzmukhamedov R. A, eds. The non-aligned movement. Progress Publishers, 1988.

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Hall, Stephen John. Fusion-fission with aligned sodium. University of Birmingham, 1990.

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Book chapters on the topic "Aligners"

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Gill, Daljit S., and Farhad B. Naini. "Clear Aligners." In Orthodontics: Principles and Practice. John Wiley & Sons, Ltd,., 2013. http://dx.doi.org/10.1002/9781118785041.ch34.

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Abela, Stefan. "Overcoming Aligners’ Limitations." In Aligner Systems in Invisible Orthodontics. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-49204-4_15.

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Chan, Eugene, and M. Ali Darendeliler. "Class II Correction with Clear Aligners." In Orthodontic Management of Class II Malocclusion. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-57530-3_8.

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Huang, Anderson T., and Darren Huang. "Problematic Complex Movements: Can Clear Aligners Treat Them Alone?" In Controversies in Clear Aligner Therapy. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92810-0_4.

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Bajaj, Divya, Aditi Rawat, Deepkamal Kaur Gill, Mamta Juneja, and Prashant Jindal. "Efficacy of Softwares for Generation of Dental Aligners." In Proceedings of 2nd International Conference on Communication, Computing and Networking. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1217-5_78.

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Wolf, Beat, Pierre Kuonen, and Thomas Dandekar. "Meta-Alignment: Combining Sequence Aligners for Better Results." In Bioinformatics and Biomedical Engineering. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78723-7_34.

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Lenis, Josefina, and Miquel Angel Senar. "Optimized Execution Strategies for Sequence Aligners on NUMA Architectures." In Euro-Par 2016: Parallel Processing Workshops. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58943-5_40.

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Barone, Sandro, Alessandro Paoli, Armando Viviano Razionale, and Roberto Savignano. "Modelling Strategies for the Advanced Design of Polymeric Orthodontic Aligners." In Biomedical Engineering Systems and Technologies. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-54717-6_5.

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Abela, Stefan. "Clinical Management of Hybrid Approaches with Aligners and Fixed Appliances, Sectional Lingual Appliances and Mini-implants." In Aligner Systems in Invisible Orthodontics. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-49204-4_13.

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Lombardo, Luca, Mario Palone, Giuliano Bortolo Maino, Emanuele Paoletto, and Giuseppe Siciliani. "Potential and Applications of STL and DICOM Data Matching: MAPA Systems and F22 Aligners." In 3D Diagnosis and Treatment Planning in Orthodontics. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-57223-5_8.

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Conference papers on the topic "Aligners"

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Ngweta, Lilian, Mayank Agarwal, Subha Maity, Alex Gittens, Yuekai Sun, and Mikhail Yurochkin. "Aligners: Decoupling LLMs and Alignment." In Findings of the Association for Computational Linguistics: EMNLP 2024. Association for Computational Linguistics, 2024. http://dx.doi.org/10.18653/v1/2024.findings-emnlp.808.

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Yang, Helin, Rui Lin, Yong Tian, and Jindong Tian. "Automatic cutting path recognition of invisible aligners." In Sixteenth International Conference on Digital Image Processing (ICDIP 2024), edited by Zhaohui Wang, Jindong Tian, and Mrinal Mandal. SPIE, 2024. http://dx.doi.org/10.1117/12.3037259.

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Xing, Yazhou, Yingqing He, Zeyue Tian, Xintao Wang, and Qifeng Chen. "Seeing and Hearing: Open-domain Visual-Audio Generation with Diffusion Latent Aligners." In 2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2024. http://dx.doi.org/10.1109/cvpr52733.2024.00683.

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Zhu, Zhihong, Xuxin Cheng, Zhanpeng Chen, Xianwei Zhuang, Zhiqi Huang, and Yuexian Zou. "Code-Switching Can be Better Aligners: Advancing Cross-Lingual SLU through Representation-Level and Prediction-Level Alignment." In Proceedings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers). Association for Computational Linguistics, 2024. http://dx.doi.org/10.18653/v1/2024.acl-short.15.

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Xu, Jiarui, Xingyi Zhou, Shen Yan, et al. "Pixel Aligned Language Models." In 2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2024. http://dx.doi.org/10.1109/cvpr52733.2024.01238.

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Boltayevich, Elov Botir, Khamroeva Shahlo Mirdjonovna, Dauletov Adilbek Yusupbayevich, and Matyakubova Noila Shakirjanovna. "Algorithm for Aligning Paragraphs and Sentences in Aligner Tool." In 2024 9th International Conference on Computer Science and Engineering (UBMK). IEEE, 2024. https://doi.org/10.1109/ubmk63289.2024.10773529.

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Inaguma, Hirofumi, Ilia Kulikov, Zhaoheng Ni, Sravya Popuri, and Paden Tomasello. "Massively Multilingual Forced Aligner Leveraging Self-Supervised Discrete Units." In 2024 IEEE Spoken Language Technology Workshop (SLT). IEEE, 2024. https://doi.org/10.1109/slt61566.2024.10832291.

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Crawford, Joseph, Yihan Suny, and Tijana Milenkovic. "Fair evaluation of global network aligners." In 2015 IEEE International Conference on Bioinformatics and Biomedicine (BIBM). IEEE, 2015. http://dx.doi.org/10.1109/bibm.2015.7359956.

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Crawford, Joseph, Yihan Sun, and Tijana Milenkovic. "Fair evaluation of global network aligners." In the 6th ACM Conference. ACM Press, 2015. http://dx.doi.org/10.1145/2808719.2811423.

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Bani-Hani, Muath, M. Amin Karami, Nikta Amiri, and Mostafa Tavakkoli Anbarani. "Piezoelectric Teeth Aligners for Accelerated Orthodontics." In ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/smasis2018-8199.

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In this paper, a new prototype is proposed for accelerated orthodontic tooth treatment. In contrast to conventional methods, where heavy vibration generators are used, the proposed design is light and small and may remain into patient’s mouth without obstructing his daily activities. To do that, a PVDF Piezoelectric actuator layer is incorporated into a bio-compatible flexible structure which is to be excited by an external electric source. Generally, application of cyclic loading (vibration) reverses bone loss, stimulates bone mass, induces cranial growth, and accelerates tooth movement. This reduce the pain experience and discomfort associated with the treatment and also enhances the patient compliance with the treatment. Vibration has the advantage of minimal side effects in comparison to medicinal treatments. This configuration enables the operator to adjust the vibration frequency as well as the orthodontic force exerted on the tooth.
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Reports on the topic "Aligners"

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Belanche Monterde, Alba, Javier Flores-Fraile, Esteban Pérez Pevida, and Álvaro Zubizarreta-Macho. Biofilm Composition Changes During Orthodontic Clear Aligners Compared To Multibracket Appliances: A Systematic Review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2025. https://doi.org/10.37766/inplasy2025.4.0079.

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Bazán, Christian Regalado, Andrea Espichan Salazar, and Luis Arriola Guillen. COMPARISON OF RELAPSE OF ORTHODONTIC TREATMENT WITH ALIGNERS VERSUS CONVENTIONAL FIXED APPLIANCES: A SYSTEMATIC REVIEW. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.6.0097.

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Decoux, Marine, Álvaro Zubizarreta-Macho, and José María Montiel-Company. Disinfection Capability of Three Cleaning Techniques for Orthodontic Clear Aligners Maintenance - Systematic Review and Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2025. https://doi.org/10.37766/inplasy2025.6.0046.

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Syed, Altafuddin, and Ravinder Saini. Comparative Impact of Clear Aligners and Fixed Appliances on Quality of Life, Periodontal Health and Pain: A systematic Review and Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2025. https://doi.org/10.37766/inplasy2025.3.0100.

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Kump, Isabell, and Amadée Mudie-Mantz. Fragmented and Multi-Aligned. Munich Security Conference, 2024. https://doi.org/10.47342/ryfc9534.

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Mike Ferguson, Mike Ferguson. Frugal DIY Mask Aligner Kit for High Resolution Photolithography. Experiment, 2024. http://dx.doi.org/10.18258/67502.

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Brinker, C. Jeffrey, and Yunfeng Lu. Aligned mesoporous architectures and devices. Office of Scientific and Technical Information (OSTI), 2011. http://dx.doi.org/10.2172/1010416.

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Niederle, Muriel, and Leeat Yariv. Decentralized Matching with Aligned Preferences. National Bureau of Economic Research, 2009. http://dx.doi.org/10.3386/w14840.

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Lazanas, Antonios, Zarvan Khambatta, Yingjin Gan, Lingjuan Ma, and Niall Smith. Building “Net-Zero-Aligned” Portfolios. CFA Institute, 2025. https://doi.org/10.56227/25.1.2.

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Krishna, Sanjay. Aligner/Bonder for Fabrication of Nanoscale Spectral and Polarimetric Sensors. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada492513.

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