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Статті в журналах з теми "Clear orthodontic aligner"
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Gold, Binu Punnoose, Suvetha Siva, Sangeetha Duraisamy, Azmina Idaayath, and Ravi Kannan. "Properties of Orthodontic Clear Aligner Materials - A Review." Journal of Evolution of Medical and Dental Sciences 10, no. 37 (September 13, 2021): 3288–94. http://dx.doi.org/10.14260/jemds/2021/668.
Повний текст джерелаАнотація:
BACKGROUND Clear aligners are orthodontic devices that are transparent, a plastic used to correct malaligned teeth. Here patient wears a series of customized clear, removable aligners that gradually move the teeth to the desired position. The clear aligner system is a modern adaptation of the systems described since the middle of the 20th century, therefore there were different devices and philosophies that have led to its creation and the system has evolved a lot over the decades. Clear aligner therapy has been a part of the orthodontic practice for years, but, popularity was increased since the introduction of Invisalign appliances (Align Technology) in 1998. There are almost 27 different clear aligner products currently on offer for orthodontic treatment. Nowadays, more people prefer clear aligner treatment because it is aesthetically superior to brackets and lingual orthodontics. The superiority of clear aligners lies in their aesthetics. The optical properties of the clear aligner material play a major role in aesthetics. The rising demand among adult patients for “invisible” orthodontic treatment has led to an exponential growth in the clear aligner market. Indeed, these aligners have a low aesthetic impact, as well as being able to effectively and progressively guide the teeth into their programmed positions. They are also removable and therefore do not hamper oral hygiene maintenance, in turn reducing the risk of white spots, caries, gingivitis and periodontal disease. All the materials do not possess the same chemical composition. The properties change before and after wear. In this article, we bring out the different materials used for the manufacture of clear aligners and their various properties. KEY WORDS Clear Aligners, Optical Properties, Thermoplastic Material, Mechanical Properties
2
Shetty, Sanjana, and Naazia Shaikh. "Clear aligner therepy – A review." Journal of Dental Specialities 9, no. 2 (December 15, 2021): 46–52. http://dx.doi.org/10.18231/j.jds.2021.013.
Повний текст джерелаАнотація:
Aesthetics is a major factor in Orthodontic treatment and it is a primary concern among patients seeking orthodontic treatment. To meet the growing aesthetic desire for an alternative to traditional braces, researchers have created a variety of alternatives, including ceramic or composite braces, lingual orthodontics, and transparent aligners. Clear aligner therapy is a treatment that consists of a set of clear dental appliances that are custom-made to fit the contour of a patient's teeth. Clear Aligners are an alternative to traditional braces that are used to guide teeth into appropriate alignment. Clear aligners, like braces, utilise a progressive force to regulate tooth movement, but without the need of metal wires or brackets.
3
Shetty, Sharath Kumar, Cecilia Wilson, Mahesh Kumar Y, and Vijayananda K. Madhur. "Orthodontic Treatment with Clear Aligners." Scholars Journal of Dental Sciences 8, no. 7 (August 13, 2021): 230–33. http://dx.doi.org/10.36347/sjds.2021.v08i07.008.
Повний текст джерелаАнотація:
The paradigm shift in orthodontics arrived with the introduction of Aligner System. It allows both dental practitioner and patient to develop a visual understanding of orthodontic tooth movement. The esthetic and practical advantages of the system have extended orthodontic services to a greater population. The transparency of the clear aligners enhances its esthetic appeal for those adult patients who are averse to wearing conventional labial fixed orthodontic appliances. Although guidelines about the types of malocclusions that this technique can treat exist, few clinical studies have assessed the effectiveness of the appliance.
4
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.
Повний текст джерелаАнотація:
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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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 (September 15, 2022): 120–24. http://dx.doi.org/10.18231/j.jco.2022.022.
Повний текст джерелаАнотація:
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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Wheeler, Timothy T. "Orthodontic clear aligner treatment." Seminars in Orthodontics 23, no. 1 (March 2017): 83–89. http://dx.doi.org/10.1053/j.sodo.2016.10.009.
Повний текст джерела
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Drake, Carl T., Susan P. McGorray, Calogero Dolce, Madhu Nair, and Timothy T. Wheeler. "Orthodontic Tooth Movement with Clear Aligners." ISRN Dentistry 2012 (August 14, 2012): 1–7. http://dx.doi.org/10.5402/2012/657973.
Повний текст джерелаАнотація:
Clear aligners provide a convenient model to measure orthodontic tooth movement (OTM). We examined the role of in vivo aligner material fatigue and subject-specific factors in tooth movement. Fifteen subjects seeking orthodontic treatment at the University of Florida were enrolled. Results were compared with data previously collected from 37 subjects enrolled in a similar protocol. Subjects were followed prospectively for eight weeks. An upper central incisor was programmed to move 0.5 mm. every two weeks using clear aligners. A duplicate aligner was provided for the second week of each cycle. Weekly polyvinyl siloxane (PVS) impressions were taken, and digital models were fabricated to measure OTM. Initial and final cone beam computed tomography (CBCT) images were obtained to characterize OTM. Results were compared to data from a similar protocol, where subjects received a new aligner biweekly. No significant difference was found in the amount of OTM between the two groups, with mean total OTM of 1.11 mm. (standard deviation (SD) 0.30) and 1.07 mm. (SD 0.33) for the weekly aligner and biweekly control groups, respectively (P=0.72). Over eight weeks, in two-week intervals, material fatigue does not play a significant role in the rate or amount of tooth movement.
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Moon, Chiho, George K. Sándor, Edward Chengchuan Ko, and Yong-Deok Kim. "Postoperative Stability of Patients Undergoing Orthognathic Surgery with Orthodontic Treatment Using Clear Aligners: A Preliminary Study." Applied Sciences 11, no. 23 (November 25, 2021): 11216. http://dx.doi.org/10.3390/app112311216.
Повний текст джерелаАнотація:
Backgrond: Until now, there have been many studies on the postoperative stability of orthognathic patients treated with traditional fixed orthodontic appliances. Recently, the use of clear aligners as orthodontic appliances has increased in orthodontic treatment for aesthetic and patient convenience. The aim of this preliminary study was to investigate the stability and characteristics of patients undergoing orthognathic surgery using clear aligners. Patients and Methods: This study was performed on patients who underwent orthognathic surgery by one surgeon at Pusan National University Dental Hospital from April 2017 to August 2021. A comparative study was conducted on five patients treated with clear aligners during orthodontic treatment and ten patients treated with traditional fixed appliances as a control group. Postoperative skeletal changes and recurrence were evaluated by cone beam computed tomography and lateral cephalometric radiographs taken two days postoperatively and six months postoperatively. Several measurement variables were used to confirm the presence or absence of recurrence, preoperative and postoperative orthodontic treatment period, and the number of extracted teeth. Results: Postoperative stability for six months after surgery was not significantly different between the clear aligner group and the traditional fixed appliance group. The preoperative orthodontic treatment period was also shorter in the clear aligner group, and the number of extracted premolar teeth and impacted teeth were also fewer in the clear aligner group, but there was no significant difference. Conclusions: Orthodontic treatment using clear aligners continues to develop, and it is believed that there is no limit to what can be accomplished during orthodontic surgery accompanied by clear aligners.
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Yaosen, Chen, A. M. Mohamed, Wang Jinbo, Zheng Ziwei, Maher Al-balaa, and Yang Yan. "Risk Factors of Composite Attachment Loss in Orthodontic Patients during Orthodontic Clear Aligner Therapy: A Prospective Study." BioMed Research International 2021 (January 23, 2021): 1–6. http://dx.doi.org/10.1155/2021/6620377.
Повний текст джерелаАнотація:
Background. The composite attachment loss during orthodontic clear aligner therapy is an adverse event that commonly happens in our daily practice. However, there is a lack of related statistical analysis and studies analyzing the related risk factors. Therefore, the aim of this study is to assess the incidence of attachment loss during orthodontic clear aligner therapy and to identify rick factors that may predict such event. Materials and Methods. The demographics and clinical variables of 94 patients undergoing clear aligner therapy (27 males and 67 females; average age: 27.60 ± 0.86 years ) were recorded. Both patient-related and tooth-related attachment loss was recorded. The chi-squared test and logistic regressive analysis were applied to identify the potential risk factors. SPSS for Mac (version 23.0, IBM, USA) was used for statistical analyses. P < 0.05 was considered statistically significant. Results. Our study suggested that the risk factors for attachment loss include frequent aligner removal (≥ 5 times a day) ( losing rate = 60.0 % , P = 0.005 ), aligner wear time less than 18 hours a day ( losing rate = 50.8 % , P = 0.014 ), eating without aligners inserted ( losing rate = 47.9 % , P = 0.034 ), utilizing aligner tray seaters ( losing rate = 48.2 % , P = 0.006 ), and unilateral mastication ( losing rate = 52.1 % , P = 0.002 ). The multivariable logistic regression analysis indicates that aligner wear time less than 18 hours a day ( P = 0.020 , B = 0.925 ), using aligner tray seaters ( P = 0.007 , B = 1.168 ), and unilateral mastication ( P = 0.034 , B = − 0.458 ) were considered independent factors that can predict the composite attachment loss in orthodontic clear aligner therapy. Conclusion. Wearing aligner less than 18 hours a day, using aligner tray seaters, and unilateral mastication may contribute to increased incidence of composite attachment loss during orthodontic clear aligner therapy.
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Saypeeva, M. M., E. V. Brusnitsyna, E. S. Bimbas, I. V. Gavrilov, T. V. Zakirov, and V. A. Trubina. "Orthodontic treatment with clear aligners and enamel remineralization in adolescents." Pediatric dentistry and dental profilaxis 21, no. 2 (July 17, 2021): 95–102. http://dx.doi.org/10.33925/1683-3031-2021-21-2-95-102.
Повний текст джерелаАнотація:
Relevance. The effectiveness of the new remineralizing agent PRESIDENT®PROFI REM "MINERALS GEL" was assessed at different stages of clear aligner orthodontic treatment in adolescents with reduced enamel resistance.Materials and methods. PRESIDENT®PROFI REM "MINERALS GEL" was evaluated in a one-month open, single center, non-comparative study where 20 adolescents took part (mean age 14.9 ± 1.1 years).Results. OHI-S decreased by 24.75%, PMA and ERT reduced by 44.33% and 17.11% respectively, after one month of the orthodontic treatment with clear aligners and simultaneous use of the remineralizing gel. The pH in the mixed saliva increased from 6.97 ± 0.16 to 7.69 ± 0.11, calcium went up by 48.5%, and the total antioxidant activity decreased by 29.36% (according to the mixed saliva biochemical parameters). The OHIP-14 questionnaire revealed that the quality of life decreased in 75% of adolescent patients during the orthodontic treatment with aligners due to "communication problems". The quality of life was significantly higher during the aligner treatment with simultaneous remineralizing therapy than during the conventional treatment with fixed appliances (4.25 ± 0.86 points in the aligner group versus 7.05 ± 1.16 points – the brackets group).Conclusions. The remineralizing gel PRESIDENT®PROFI REM "MINERALS GEL" has an anti-plaque and mineralizing effect. The quality of life is significantly higher during the clear aligner treatment with simultaneous remineralizing therapy than during the conventional treatment with fixed appliances.
Дисертації з теми "Clear orthodontic aligner"
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Best, Alexandra D. "Comparison of treatment management between orthodontists and general practitioners performing clear aligner therapy." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4158.
Повний текст джерелаАнотація:
The purpose of this study was to investigate differences in case confidence, treatment management, and Invisalign® expertise between orthodontists and general dentists. A survey was mailed to 1,000 randomly selected orthodontists and general dentists, respectively, who are Invisalign® providers, and results were analyzed. The results indicated that orthodontists treated significantly more Invisalign® cases and received more Invisalign® training than general dentists (P
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Roblee, Thomas, Robert R. Boyd, James Chen, and Heesoo Oh. "EFFICIENCY AND EFFECTIVENESS OF ARCH EXPANSION WITH CORTICOTOMY-ASSISTED CLEAR ALIGNER THERAPY." Scholarly Commons, 2020. https://scholarlycommons.pacific.edu/dugoni_etd/7.
Повний текст джерелаАнотація:
Introduction: Surgically Facilitated Orthodontic Therapy (SFOT) has been utilized for years to overcome the limitations encountered with traditional orthodontic treatment of dentoalveolar and alveoloskeletal malocclusions. The procedure, which consists of full flap corticotomies and bone grafting, has many proposed benefits including increased speed and range of tooth movement. The purpose of this study is to evaluate arch expansion in patients treated with SFOT and clear aligners. Materials and Methods: A retrospective cohort study design was used to evaluate 51 consecutive adult patients that were treatment planned for significant arch expansion with corticotomies, bone grafting, and clear aligners. 17 of the 51 patients refused the surgical procedure and served as controls. Eight transverse arch width measurements were obtained at three different time points (Initial, ClinCheck, Refinement). Five calculations were performed to determine the magnitude, predictability, and efficiency of arch expansion. Results: The difference in treatment time between the two groups was statistically significant at 5.2 months (P < .0001). On average, corticotomies reduced the length of treatment by 46% and increased the rate of expansion 2.4x. Patients that received SFOT achieved a greater magnitude (+28%) of expansion at a significantly higher rate (P< 0.002) than controls for all eight interarch measurements. The SFOT group displayed higher predictability (% goal achieved) and a smaller difference between predicted and achieved tooth movements for all measures obtained. The mean age for the entire sample was 42.81 (+12.51 years). Conclusion: Arch expansion with corticotomy-assisted clear aligner therapy is significantly more effective, efficient, and predictable than with clear aligners alone. The predictability of expansion with aligners appears to have a higher range than initially thought, even in patients that do not receive corticotomies.
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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.
Повний текст джерелаАнотація:
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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Rondinelli, Loana Pinto. "Ortodontia plástica: vantagens e limitações." Master's thesis, 2019. http://hdl.handle.net/10400.26/30577.
Повний текст джерелаАнотація:
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas MonizIntrodução: O avanço na Ortodontia que ocorreu nas últimas décadas foi impulsionado pela demanda estética. O aumento do interesse dos adultos na correção dentária impõe o fator estético como ponto determinante na decisão do tipo de aparelho ortodôntico a utilizar. Assim sendo, os alinhadores surgem como uma alternativa aos dispositivos multibrackets com arcos, uma alternativa não só confortável, mas também impercetível. Por sua vez, a responsabilidade de se realizar atualizações frequentes e conhecer as aplicações e principalmente limitações da nova técnica, é unicamente do Ortodontista. Objetivos: Esta revisão de literatura tem como objetivo avaliar as vantagens, desvantagens e eficácia clínica da Ortodontia Plástica em comparação com os sistemas multibrackets. Metodologia: Para a busca eletrônica de artigos usamos as seguintes bases de dados: “Cochrane”, “ScienceDirect”, “B-on”, “Google Acadêmico” e finalmente o “PubMed”. Restringimos a pesquisa a artigos na língua portuguesa, inglesa e espanhola publicados desde 2013 incluindo todos os tipos de estudo com preferência pelas revisões sistemáticas e meta-análises, bem como artigos chave listados nas referências dos artigos selecionados. Recorremos ainda ao arquivo bibliográfico do IUEM. Conclusão: Concluímos neste trabalho que as vantagens do uso dos alinhadores plásticos como aparelho ortodôntico apresentam a estética como principal ponto de decisão, seguido do conforto do paciente e por último da higiene oral. Por outro lado, a desvantagem dos sistemas plásticos está atualmente relacionada com a limitação de tipos de movimentos ortodônticos, sendo estes os movimentos de extrusão, rotação e torque os mais difíceis de serem alcançados. Acreditamos que avanços na tecnologia ocorrem continuamente e podem vir a mudar definitivamente as limitações ortodônticas dos alinhadores plásticos.
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Lozano, Liseth. "Distalization of upper molars in treatments with aligners: a narrative review." Master's thesis, 2021. http://hdl.handle.net/10284/10731.
Повний текст джерелаАнотація:
Objective: To assess in orthodontic treatment the distalization of uppers molars with invisalign Materials and methods: A literature review was carried out through articles and journals retrieved from the “PubMed" data base using the following keywords "orthodontic treatment", "tooth movement technique", "aligner appliances", "invisalign", "removable orthodontic appliance” “clear aligners”. Several articles were pre-selected, of which 24 were used to compose write this document.
Discussion: Clear aligner as an orthodontics treatment during the distalization purposes has been a controversial topic due to its complexity and lees studies. In This paper provides a deeper knowledge of the distalization in upper molars under invisalign treatment enable and helping professionals to make the right decision when planning orthodontic treatment.
Conclusion: The Upper Molars Distalization with clear aligner could be effective, being able to reach up to 3mm of movement; however, is very important for the clinician to develop a thorough knowledge of the current Align Protocol and to acquire sufficient Invisalign experience before attempting the complex movements required for successful completion of these types of cases.
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Denis, Justine Marie. "Movimento dentário ortodôntico com Invisalign®." Master's thesis, 2018. http://hdl.handle.net/10284/7467.
Повний текст джерелаАнотація:
O sistema de alinhadores do sistema Invisalign® foi introduzido como uma alternativa
estética ao uso de brackets no tratamento ortodôntico. Os alinhadores são aparelhos
removíveis transparentes feitos à medida e capazes de induzir movimento dentario.
Face a uma maior procura por parte dos pacientes, este sistema tem evoluído
significativamente com o objetivo de atingir resultados semelhantes aos obtidos com os
tratamentos convencionais com brackets.
Levando em conta os fatores que podem influenciar o movimento dentário ortodôntico,
através de uma revisão bibliográfica, a autora deste trabalho teve como objetivo a
avaliação da eficácia e eficiência do sistema Invisalign®.Clear aligners of the Invisalign® system were introduced as an aesthetic alternative to the use of brackets in orthodontic treatment. The aligners are custom-made removable transparent appliances capable of inducing tooth movement. Faced with increasing patient demand, this system has evolved significantly in order to achieve results similar to those obtained with conventional brackets treatments. Taking into account factors that may influence orthodontic tooth movement, through a bibliographic review, the author of this work had the objective of evaluating the effectiveness and efficiency of the Invisalign® system.
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Bompard, Robin. "Periodontal impact of orthodontic treatment with clear aligners." Master's thesis, 2020. http://hdl.handle.net/10284/9421.
Повний текст джерелаАнотація:
Objective: To compare the periodontal health of patients treated with conventional
fixed appliance and patients treated with clear aligner systems, in various
malocclusions.
Methods: A systematic literature search comprised three databases: PubMed, B-on and
Cochrane. Eligible studies were selected based on the inclusion and exclusion criteria.
Results: Seven studies were selected for data extraction, three randomized controlled
trials and four cohort studies. The total number of participants making up this
systematic review was 390. The plaque index showed a statistically significant
differences between patients with fixed orthodontic appliances and clear aligners while
the others indices showed no statistically significant differences.
Conclusion: This review didn’t found data that support the existence of significant
statistic differences between clear aligners and fixed orthodontic appliances regarding
periodontal health impact. More studies are needed to clarify this aspect related with
the orthodontic treatment.Objetivo: Comparar o status periodontal dos pacientes tratados com aparelhos ortodônticos fixos convencionais e o status periodontal dos pacientes tratados com aparelhos removíveis comummente designados alinhadores, em diferentes más oclusões. Metodologia: Foi realizada uma revisão sistemática da literatura, nas fontes electrónicas de informação seguintes: PubMed, B-on e Cochrane. Foram definidos critérios de inclusão e de exclusão que permitiram a seleção dos artigos analisados no trabalho. Resultados: Foram selecionados sete artigos para revisão, dos quais três respeitavam a ensaios clínicos randomizados controlados e quatro a estudos de coorte. O número total de participantes incluídos nesta revisão foi de 390 indivíduos. A análise dos dados relativos aos índices de placa bacteriana dos pacientes revelam diferenças estatisticamente significativas entre os dois grupos estudados, enquanto na análise dos restantes índices periodontais não se detectam diferenças estatisticamente significativas. Conclusão: Este trabalho não encontrou evidência científica que permita concluir que existem diferenças estatisticamente significativas relativas ao estado de saúde dos tecidos periodontais dos pacientes tratados ortodonticamente, em função do tipo de aparelhos analisados neste estudo. Sugere-se a realização de novas investigações para melhor clarificação deste assunto.
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You, Sheng-Zhe, and 游聖哲. "Preparation and Characteristization of PETG-based Orthodontic Clear Aligners." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ry798t.
Повний текст джерелаАнотація:
碩士逢甲大學
纖維與複合材料學系
105
The advantages of using transparent and invisible braces as orthodontic aligner material were due to its properties of beautiful, comfortable, health, security and other advantages and therefore, they have been widely used. The thermoplastic polyester PETG as matrix material, which was modified by blending research and led to excellent comprehensive properties of orthodontic materials, were preparated. We explore the comparison with commercially available stealth orthodontic materials. In this experiment, PETG, PC and TPU were mixed according to respective different proportion of 80/10/10, 65/10/25, and 50/10/40 weight percentages. The matrix blended at different melting temperature of 200℃ and 210℃for mixing. The mixtures as experimental groups and commercialized orthodontic materials as compared group were studied. Through the experiment discovered: When the PETG content in the mixture is 80%, the blend and tensile strength are closest to each other orthodontic material. Orthodontic material tensile strength is 590MPa. The more PETG content in the blend and Orthodontic material tensile sections are rigid fracture. The more TPU content in the blend is higher the brightness. The largest brightness L is at the value of 87.77. Blend with the contact angle of 67ﾟ~78ﾟ，shows the blend has the relative hydrophobic property. The commercialized orthodontic material of CA has a water absorb rate of 0.37% after 336 hours of immersion, The PPT blend has a water absorption of 0.3 to 0.32% after 336 hours of immersion. DSC：The masured glass temperature of Blends conversion point is 68 ~ 75℃that is consisted of the commercialized orthodontic materials CA with glass temperature of conversion point 75.84℃. Both glass temperatures are quite close to the point of theoretical conversion. Normal diet will not cause too much impact on the stealth appliance, thus it will not cause material melting.
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Warshawsky, Noah. "Preliminary efficacy of tooth movement in clarity aligners." Thesis, 2019. https://hdl.handle.net/2144/34841.
Повний текст джерелаАнотація:
The newly emerging Clarity™ Clear Aligner System from 3M has set out to address one of the biggest pitfalls of thermoplastic aligners: accuracy of orthodontic movements. The 3M Clarity™ Clear Aligner System is unique among clear aligners because it employs a proprietary, sophisticated machine-learning algorithm to design orthodontic movement schematics. The core of the Clarity™ Aligner System is artificial intelligence, meaning that a prospective analysis of preliminary data is essential for the development and improvement of the accuracy of the algorithm. This study investigates movement and accuracy of the Clarity™ Aligner System, from a preliminary data subset from ongoing prospective, randomized clinical trials. Movement from the first trial subset is examined in terms of the following movement factors: secondary premolar-secondary premolar (5+5 in the Palmer system) arch expansion or crowding resolved, absolute rotation, absolute mesial-distal tipping, and absolute torque for both the crown and root. These movements are further examined according to specific tooth types.
Both actual observational orthodontic movements and theoretical movements are designed by the Clarity™ System. The accuracy of actual movement in terms of theoretical movements is calculated; however, it is impossible to calculate the significance of these accuracies due to a complete lack of benchmark movement values for the clear aligner market. There are no benchmark values to compare to, so orthodontic movements will be critically examined for performance, and casually compared to alternative aligner systems. Identifying potential weaknesses in the Clarity™ Aligner System is imperative for maximizing its effectiveness.
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Robitaille, Pascale. "Traitement combiné d’orthodontie et de chirurgie orthognatique avec Invisalign® : revue de la durée de traitement et des résultats obtenus." Thèse, 2016. http://hdl.handle.net/1866/16432.
Повний текст джерелаАнотація:
INTRODUCTION Il existe actuellement de nombreuses options esthétiques de traitement pour corriger orthodontiquement les malocclusions dentaires. Le standard de traitement en chirurgie orthognatique est d’utiliser des boîtiers conventionnels fixes. Récemment, une nouvelle technique gagne en popularité en pratique privée : l’utilisation de coquilles d’alignement transparentes comme alternative esthétique. La littérature actuelle sur ce sujet consiste exclusivement de rapports de cas. Ainsi, il semble raisonnable d’affirmer que davantage de recherche est nécessaire sur ce sujet.
OBJECTIFS L’objectif principal de cette étude rétrospective est d’évaluer la qualité des résultats obtenus à la suite de traitements combinés d’orthodontie et de chirurgie orthognatique en utilisant le système Invisalign®, en comparaison avec les boîtiers orthodontiques traditionnels. L’objectif secondaire de comparer la durée de traitement entre les deux systèmes.
MATÉRIEL/MÉTHODES Quarante-neuf patients ont été recrutés en provenance de deux pratiques orthodontiques privées (24 Invisalign® / 25 contrôles de boîtiers fixes). Les deux groupes étaient initialement similaires, tel que mesuré par le Discrepancy Index de l’American Board of Orthodontics. Les résultats finaux ont été évalués en utilisant l’outil Phase III (Model Grading System) de l’American Board of Orthodontics.
RÉSULTATS Les scores moyens de chaque catégorie du Model Grading System étaient supérieurs pour le groupe Invisalign® et une différence significative existait entre les groupes pour les catégories d’alignement, de contacts occlusaux, d’angulation des racines et de score total. Les durées de la préparation pré-chirurgicale et du traitement total se sont révélées plus courtes pour le groupe Invisalign® (p ≤ 0.05).
CONCLUSION Invisalign® a produit des traitements combinés d’orthodontie et de chirurgie orthognatique plus courts que les boîtiers traditionnels. Par contre, des scores du Model Grading System supérieurs ont été répertoriés lorsque comparés avec les boîtiers conventionnels, signifiant la production de résultats de qualité inférieure à la technique traditionnelle fixe.INTRODUCTION Numerous esthetic orthodontic treatment options currently exist to correct dental malocclusions. The gold standard in orthognathic surgery is to use bonded orthodontic brackets. Recently, clear aligners have been proposed as an alternative. The current available literature on this topic consists exclusively of case reports. Therefore, it seems reasonable to assume that further research is needed on this topic. OBJECTIVE The primary objective of this retrospective study aims to evaluate the quality of the outcomes of combined orthodontic and surgical treatments with Invisalign® when compared with conventional orthodontic treatments. The secondary objective is to compare the duration of treatment between Invisalign® and conventional brackets. MATERIAL/METHODS Forty-nine patients were recruited from two orthodontic private practices (24 Invisalign® / 25 bracket controls). Both groups were initially similar, as per the ABO Discrepancy Index. The results were assessed using the ABO Phase III method (MGS). RESULTS The MGS mean scores were consistently higher for Invisalign® and there was a significant difference between the groups regarding alignment, occlusal contacts, root angulations and total score. The duration of pre-surgical preparation and the total treatment time were shorter for the Invisalign® group (p ≤ 0.05). CONCLUSION Invisalign® provided faster combined orthodontic and orthognathic surgery treatment, yet demonstrated inferior quality of results when compared to conventional brackets using the MGS.
Частини книг з теми "Clear orthodontic aligner"
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Gill, Daljit S., and Farhad B. Naini. "Clear Aligners." In Orthodontics: Principles and Practice, 318–24. West Sussex, UK: John Wiley & Sons, Ltd,., 2013. http://dx.doi.org/10.1002/9781118785041.ch34.
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Sahim, Soukaina, and Farid El Quars. "Effectiveness and Stability of Treatment with Orthodontics Clear Aligners: What Evidence?" In Current Trends in Orthodontics [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99998.
Повний текст джерелаАнотація:
Clear aligners, as a transparent and removable appliance, offer an alternative to conventional fixed appliance to patients with high demands for esthetics and comfort. Only a few investigations have focused on the efficacy of clear aligner therapy in controlling orthodontic tooth movement. Furthermore, the stability after treatment has not been thoroughly investigated. The purpose of this chapter was to update the knowledge of the available evidence about effectiveness and stability of clear aligners in non-growing subjects. Searches was made in different databases from January 2015 to January 2021. Relevant articles that met the inclusion criteria were selected. The level of evidence of the studies was moderate. The vertical movements of tooth were difficult to accomplish. Mesiodistal tipping showed the most predictability (82.5%) followed by vestibulolingual tipping. Molar distalization was also recorded as the highest accuracy. Derotation was difficult to accomplish with aligners especially of rounded teeth. The effectiveness of aligners in achieving the simulated transverse goals was 45%. The stability of clear aligner therapy was assessed by only two studies. Refinements are likely needed in almost all cases and to ensure treatment stability a retention period using a specific protocol is necessary.
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Cohen-Levy, DDS, Julia. "Orthodontic Monitoring and Case Finishing With the T-Scan System." In Advances in Medical Technologies and Clinical Practice, 1057–124. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9254-9.ch015.
Повний текст джерелаАнотація:
This chapter reviews T-Scan use in orthodontics from diagnosis to case finishing, and then in retention, while defining normal T-Scan recording parameters for orthodontically-treated subjects versus untreated subjects. T-Scan use in the case-finishing process is also described, which compensates for changes in the occlusion that occur during “post-orthodontic settling,” as teeth move freely within the periodontium to find an equilibrium position when the orthodontic appliances have been removed. T-Scan implementation is necessary because, often, despite there being a post treatment, visually “perfect” angle's Class I relationship established with the orthodontic treatment, ideal occlusal contacts do not result solely from tooth movement. Creating simultaneous and equal force occlusal contacts following fixed appliance removal can be accomplished using T-Scan data to optimize the end-result occlusal contact pattern. The T-Scan software's force distribution and timing indicators (the two- and three-dimensional force views, force percentage per tooth and arch half, the center of force trajectory and icon, the occlusion time [OT], and the disclusion time [DT]), all aid the Orthodontist in obtaining an ideal occlusal force distribution during case-finishing. Fortunately, most orthodontic cases remain asymptomatic during and after tooth movement. However, an occlusal force imbalance or patient discomfort may occur along with the malocclusion that needs orthodontic treatment. Symptomatic cases require special documentation at the baseline, and careful monitoring throughout the entire orthodontic process. The clinical use of T-Scan in these “fragile” cases of patient muscle in-coordination, mandibular deviation, atypical pain, and/or TMJ idiopathic arthritis, are illustrated by several case reports. The presented clinical examples highlight combining T-Scan data recorded during case diagnosis, tooth movement, and in case finishing, with patients that underwent lingual orthodontics and orthognathic surgery, orthodontic treatment using clear aligners, or conventional fixed treatment with a camouflage treatment plan, which require special occlusal finishing (when premolars are extracted in only one arch).
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"Orthodontic Biomechanics Using Clear Aligners." In Recent Advances in Dentistry, edited by Tarek El-Bialy, Donna Galante, and Sam Daher, 28–39. BENTHAM SCIENCE PUBLISHERS, 2016. http://dx.doi.org/10.2174/9781681083117116010007.
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Dharmadeep, G., Sakshi Tiwari, M. Balagangadhar, and Nettam Venkatesh. "Clear Aligner Therapy - The Advancements & Updates of Aligners in Orthodontics." In Recent Developments in Medicine and Medical Research Vol. 3, 152–69. Book Publisher International (a part of SCIENCEDOMAIN International), 2021. http://dx.doi.org/10.9734/bpi/rdmmr/v3/4757f.
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Elmoutawakkil, Dalal, and Nabil Hacib. "Digital Workflow for Homemade Aligner." In Current Trends in Orthodontics [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100347.
Повний текст джерелаАнотація:
Advanced digital technology is rapidly changing the world, as well as transforming the dental profession. The adoption of digital technologies in dental offices allied with efficient processes and accurate high-strength materials are replacing conventional aligners workflows to improve overall patients’ experiences and outcomes. Various digital devices such as 3D printers, intraoral and face scanners, cone-beam computed tomography (CBCT), software for computer 3D ortho setup, and 3D printing provide new potential alternatives to replace the traditional outsourced workflow for aligners. With this new technology, the entire process for bringing clear aligner production in-office can significantly reduce laboratory bills and increase patient case acceptance to provide high-quality and customized aligner therapy.
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Abdallah, Mohamed-Nur, Tiantong Lou, Jean-Marc Retrouvey, and Sunjay Suri. "Biomaterials used in orthodontics: brackets, archwires, and clear aligners." In Advanced Dental Biomaterials, 541–79. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-08-102476-8.00020-7.
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"Unique Features of Clear Aligners Compared to Regular Orthodontic Appliances." In Recent Advances in Dentistry, edited by Tarek El-Bialy, Donna Galante, and Sam Daher, 24–27. BENTHAM SCIENCE PUBLISHERS, 2016. http://dx.doi.org/10.2174/9781681083117116010006.
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babu, Harish Suresh, Daya Srinivasan, and Senthil Eagappan. "MEWING – AN OVERVIEW." In Emerging Trends in Oral Health Sciences and Dentistry. Technoarete Publishers, 2022. http://dx.doi.org/10.36647/etohsd/2022.01.b1.ch014.
Повний текст джерелаАнотація:
Aesthetics has evolved over the years and it is still evolving. Orthodontic correction of the teeth and the jaws are deemed to be the only modality for esthetic correction. A variety of orthodontic techniques like clear aligners are being used in daily practice to achieve this. But the irony is, that there is no clear evidence for the etiology of malocclusion. The concepts regarding the etiology of malocclusion are based on philosophies that have been accepted widely. Mewing is a technique that dictates for placement of the tongue against the palate with lips closed to achieve an ideal jaw alignment. This paper aims in evaluating and assessing the role of orthotropics as a potential treatment modality for improving jaw alignment and facial aesthetics.