Relevant bibliographies by topics / Limitations of tooth movement

Academic literature on the topic 'Limitations of tooth movement'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Limitations of tooth movement"

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Aksakalli, S., A. Balaban, K. Nazaroglu, and E. Saglam. "Accelerated Tooth Movement with Orthodontic Mini-Screws." Case Reports in Dentistry 2017 (2017): 1–4. http://dx.doi.org/10.1155/2017/2327591.

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This case report outlines the possibility of accelerated tooth movement with the combination of microosteoperforation and mini-screws. A 14-year-old male patient presented Class II malocclusion with maxillary incisor protrusion. Upper first premolars were extracted, and after leveling, accelerated canine distalization started. For pre- and postdistalization times, amount of distalization, periodontal health, and root resorption were assessed. Within the limitations of this case report, micro-osteoperforations with mini-screw have a potential for shortening the treatment time.
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Hong, Kyungjae, Won-Hyeon Kim, Emmanuel Eghan-Acquah, Jong-Ho Lee, Bu-Kyu Lee, and Bongju Kim. "Efficient Design of a Clear Aligner Attachment to Induce Bodily Tooth Movement in Orthodontic Treatment Using Finite Element Analysis." Materials 14, no. 17 (August 30, 2021): 4926. http://dx.doi.org/10.3390/ma14174926.

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Clear aligner technology has become the preferred choice of orthodontic treatment for malocclusions for most adult patients due to their esthetic appeal and comfortability. However, limitations exist for aligner technology, such as corrections involving complex force systems. Composite attachments on the tooth surface are intended to enable active control of tooth movements. However, unintended tooth movements still occur. In this study, we present an effective attachment design of an attachment that can efficiently induce tooth movement by comparing and analyzing the movement and rotation of teeth between a general attachment and an overhanging attachment. The 3D finite element modes were constructed from CBCT data and used to analyze the distal displacement of the central incisor using 0.5- and 0.75-mm-thick aligners without an attachment, and with general and overhanging attachments. The results show that the aligner with the overhanging attachment can effectively reduce crown tipping and prevent axial rotation for an intended distal displacement of the central incisor. In all models, an aligner with or without attachments was not capable of preventing the lingual inclination of the tooth.
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Khan, Mohamed Imran, and Dikeledi Maureen Gininda. "A radiographic analysis of Mandibular Symphysis dimension in black South African adult patients with differing skeletal patterns." South African Dental Journal 77, no. 04 (June 22, 2022): 208–15. http://dx.doi.org/10.17159/2519-0105/2022/v77no4a3.

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Orthodontic treatment often involves planned tooth movement within the confined spaces of the alveolar bone trough. Tooth movement within the alveolar trough may be limited by thin labial and lingual cortical plates. Moving lower incisors beyond the mandibular symphysis dimensions may result in damage to roots and alveolar bone.4 Aim and objective The aim of the study was to evaluate limitation of treatment in different skeletal patterns due to mandibular symphysis dimension in order to evaluate limitations of tooth movement within the confines of the mandibular alveolar trough.The objective was to determine the mandibular symphysis dimensions in subjects with differing skeletal patterns Design The design was a retrospective, cross-sectional study. Methods A sample of 180 pre-treatment lateral cephalometric radiographs of black South African subjects were stratified into three groups based on their skeletal classification. Each Class was further divided into equal numbers of males and females. Descriptive statistics, Student’s t-test, ANOVA test and Pearson correlation coefficient were used to analyse the data and p-values of <0.05 were considered statistically significant. Results Subjects with skeletal Class I pattern had a greater LA compared to subjects with skeletal Class II pattern. Subjects with skeletal Class I pattern had a greater LH and LA in females than in males. Subjects with skeletal Class III pattern had greater LH in males than in females.
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Pascoal, Selma, Aline Gonçalves, Andreia Brandão, Duarte Rocha, Sofia Oliveira, Francisca Monteiro, Óscar Carvalho, Susana Coimbra, and Teresa Pinho. "Human Interleukin-1β Profile and Self-Reported Pain Monitoring Using Clear Aligners with or without Acceleration Techniques: A Case Report and Investigational Study." International Journal of Dentistry 2022 (August 31, 2022): 1–11. http://dx.doi.org/10.1155/2022/8252696.

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Introduction. There is a growing demand for more aesthetic, comfortable, and faster orthodontic treatments, and clear aligners emerged as a solution to fulfill this need. However, the effectiveness of clear aligners to treat complex malocclusions is yet contentious. The use of acceleration methods could improve the efficacy of clear aligners by stimulating cells' mechanobiology through numerous pathways, but this hypothesis is still poorly explored. Objective. We aimed to monitor the release profile of an inflammatory marker-the interleukin-1β-and to evaluate its relationship with self-reported pain scores with and without the use of acceleration techniques during an orthodontic treatment requiring difficult tooth movements with clear aligners. Case Report. Here, we report a case of a 46-year-old female patient who presented functional and aesthetic complaints. Intraoral examination revealed a diminished overjet and overbite, rotation of teeth 45 and 24, absence of teeth 25, 35, and 36, buccolingual dislocation of tooth 21, a tendency to a Class III malocclusion, and a 2 mm left deviation of the lower midline. This study is divided into three stimulation phases: no stimulation, mechanical vibration stimulation, and photobiomodulation. Interleukin-1β levels in gingival crevicular fluid samples from the pressure side of six selected teeth were evaluated at four time points after the orthodontic treatment onset. Pain monitoring in those teeth was performed using a visual analogue scale at the same time points. Results. Interleukin-1β protein production peaked 24 h after treatment onset. Complex movements were associated with increased self-reported pain. Conclusion. Clear aligners show limitations in solving complex tooth movements, even when combined with acceleration. The development of customized and programmable stimulation microdevices integrated into “smart aligners,” which could be designed to specifically stimulate the direction of movement and stimulation parameters and could constitute a solution to optimize the orthodontic tooth movement with clear aligners.
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Kaklamanos, Eleftherios G., Miltiadis A. Makrygiannakis, and Athanasios E. Athanasiou. "Does medication administration affect the rate of orthodontic tooth movement and root resorption development in humans? A systematic review." European Journal of Orthodontics 42, no. 4 (August 18, 2019): 407–14. http://dx.doi.org/10.1093/ejo/cjz063.

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Summary Background Recently, the potential impact of different medications on the rate of orthodontic tooth movement and the associated root resorption has been systematically reviewed in animal studies and various effects have been shown. However, animal data cannot be extrapolated to human clinical situations directly. Objectives To systematically investigate the most up to date available evidence from controlled human studies regarding the effect of medication administration on the rate of orthodontic tooth movement and associated root resorption development. Search methods We searched eight databases (covering also grey literature) without restrictions and we performed hand searching up until October 2018. Selection criteria Controlled studies in humans assessing the effect of various medications on the rate of orthodontic tooth movement and root resorption development. Data collection and analysis Study selection was followed by data extraction and risk of bias assessment using the ROBINS-I tool for non-randomized and the Cochrane Risk of Bias Tool for randomized studies. Results Eight studies, at various risk of bias, were finally identified. With regard to the rate of orthodontic tooth movement, local injections of prostaglandin E1 were found to exert an increasing effect, whereas systemic intake of nabumetone decreased it. Following tenoxicam administration, drinking water with fluoride or local injections of calcitriol (vitamin D metabolite), no significant effects were demonstrated. Concerning root resorption development, nabumetone administration was shown to reduce it, whereas fluoride, overall, was not observed to exert any effect. Only in individuals subjected to heavy orthodontic forces, did fluoride show a protective effect for the period of force application, but not in the longer term during retention. Conclusions The aforementioned substances may show varying effects on the rate of orthodontic tooth movement and root resorption development in human subjects. Despite the observed limitations, the orthodontist should be able to identify patients taking pharmaceuticals and consider any implications related to orthodontic treatment. Registration PROSPERO (CRD42017078208).
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Liu, Xin, Mao Liu, Bin Wu, Jingjing Liu, Wencheng Tang, and Bin Yan. "Effect of the Maxillary Sinus on Tooth Movement during Orthodontics Based on Biomechanical Responses of Periodontal Ligaments." Applied Sciences 12, no. 10 (May 15, 2022): 4990. http://dx.doi.org/10.3390/app12104990.

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The maxillary sinus is a common anatomic limitation for orthodontic tooth movement. The effect of orthodontic forces on a particular anatomy can be studied using finite element analysis (FEA). Our study aimed to determine the effect of different tooth penetration depths into the maxillary sinus floor (MSF) on the orthodontic force system for bodily tooth movement. Using the cone-beam computed tomography of a patient with low MSF, we modeled the geometry of canine, premolar, and molar teeth with their periodontal ligaments and the alveolar bone surrounding them. The models were manually modified to simulate different root penetration depths. Thereafter, the center of resistance and stress distributions for teeth penetrating into the MS were determined using FEA. Moreover, the force systems for teeth with a low MSF to varying degree were evaluated based on the FEA results. During orthodontic tooth movement, the individual differences in the periodontal anatomy should be considered. The CR position decreases with the penetration depth, while the average hydrostatic stress in the PDL increases rapidly. In this paper, we present the correction coefficients of the orthodontic force and moment for a tooth penetrating into the MSF, which is necessary for personalized treatment planning.
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Francisco, Inês, Maria Helena Fernandes, and Francisco Vale. "Platelet-Rich Fibrin in Bone Regenerative Strategies in Orthodontics: A Systematic Review." Materials 13, no. 8 (April 16, 2020): 1866. http://dx.doi.org/10.3390/ma13081866.

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Preservation of the alveolar bone is a determinant in the outcome of orthodontic treatment. Alveolar bone defects or a decrease of their height and width may occur due to common reasons such as inflammation, tooth extraction, or cleft lip and palate. The aim of this systematic review was to investigate and appraise the quality of the most up to date available evidence regarding the applications and effects of platelet-rich fibrin (PRF) in orthodontics. This study was carried out according to preferred reporting items for systematic reviews and meta-analyses guidelines using the following databases: Medline via PubMed, Cochrane Library, Web of Science Core Collection and EMBASE. The qualitative assessment of the included studies was performed using Cochrane Risk of Bias tool and ROBINS-I guidelines. Results: From a total of 489 studies, nine studies were selected. The majority of the included studies demonstrate that autogenous anterior iliac graft with PRF had a higher amount of newly formed bone. Furthermore, this review also suggests that the application of platelet derivatives in the extraction socket can accelerate orthodontic tooth movement. Despite the limitations in the included studies, this systematic review suggested that PRF can improve alveolar cleft reconstruction and orthodontic tooth movement.
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Reiss, Stacey, Marie Claude Chouinard, Dasha Frias Landa, Ravindra Nanda, Taranpreet Chandhoke, Takanori Sobue, Veerasathpurush Allareddy, Chia-Ling Kuo, Jinjian Mu, and Flavio Uribe. "Biomarkers of orthodontic tooth movement with fixed appliances and vibration appliance therapy: a pilot study." European Journal of Orthodontics 42, no. 4 (June 23, 2020): 378–86. http://dx.doi.org/10.1093/ejo/cjaa026.

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Summary Introduction The aim of this study was to investigate the effect of supplemental vibratory force on biomarkers of bone remodelling during orthodontic tooth movement, the rate of mandibular anterior alignment (RMAA), and compliance with a vibration device. Design, settings, and participants Forty patients between the ages 15–35 undergoing fixed appliance treatment that presented to a university orthodontic clinic were randomly allocated to supplemental use of an intraoral vibrational device (n = 20, AcceleDent®) or fixed appliance only (n = 20). Salivary multiplex assay was completed to analyse the concentration of selected biomarkers of bone remodelling before treatment (T0) and at three following time points (T1, T2, T3), 4–6 weeks apart. Irregularity of the mandibular anterior teeth and compliance was assessed at the same trial time points. Data were analysed blindly on an intention-to-treat basis with descriptive statistics, Mann–Whitney U-test, Wilcoxon signed-rank test, and linear mixed effects regression modelling. Results No difference in the changes in salivary biomarkers of bone remodelling and RMAA between groups at any time point over the trial duration was observed. No correlation was found between changes in irregularity and biomarker level from baseline to another time point. Lastly, there was no association between RMAA and compliance with the AcceleDent® device. Conclusions Supplemental vibratory force during orthodontic treatment with fixed appliances does not affect biomarkers of bone remodelling or the RMAA. Limitations The main limitation of the study was the small sample size and the large variability in the salivary biomarkers. Harms No harms were observed during the duration of the trial. Protocol The protocol was not published prior to trial commencement. Registration The study was registered in Clinical Trials.gov (NCT02119455) first posted on April 2014.
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Acharya, Pujan, Charanjeet Singh Saimbi, Khushbu Adhikari, Bikash Kumar, and Sita Niure. "Expediting the Irksome - the Cortical Approach: A Case report." Journal of Nepalese Society of Periodontology and Oral Implantology 1, no. 1 (June 1, 2017): 34–36. http://dx.doi.org/10.3126/jnspoi.v1i1.23526.

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Corticotomy assisted orthodontic treatment is a promising interdisciplinary approach, which has offered solution to many limitations in the orthodontic therapy. The procedure involves the alveolar decortication in the form of cortical grooves and perforations performed around the teeth that are to be moved. In this case report, a 17 year old male under fixed orthodontic therapy with a complaint of delayed protraction of mandibular second molars underwent corticotomy procedure. The decortication was done followed by elevation of buccal and lingual flaps. After 2 weeks of the surgical procedure, orthodontic tooth movement was initiated.
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Uzuner, F. Deniz, and Nilufer Darendeliler. "Dentoalveolar surgery techniques combined with orthodontic treatment: A literature review." European Journal of Dentistry 07, no. 02 (April 2013): 257–65. http://dx.doi.org/10.4103/1305-7456.110201.

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ABSTRACTSurgery on the dentoalveolar process combined with orthodontic treatment was emphasized as an alternative method for reducing the treatment time and improving the orthodontic treatment on post-adolescent and adult patients. This combined treatment facilitates and accelerates orthodontic tooth movement. This article reviews the clinical practice in surgery-assisted orthodontic treatment in relation to historical perspective, indications and biological principles, as well as limitations and risks of dento-osseous surgical techniques, including dento-osseous osteotomy and/or ostectomy, dento-osseous microfracture, dento-osseous corticotomy, and/or corticoectomy, and dental distraction.
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Dissertations / Theses on the topic "Limitations of tooth movement"

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Lam, Garret Chi Yan. "Biomechanics of orthodontic tooth movement /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?MECH%202003%20LAM.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003.
Includes bibliographical references (leaves 118-122). Also available in electronic version. Access restricted to campus users.
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Tsui, Wai-kin, and 徐偉堅. "Bone anchorage for orthodontic tooth movement." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44661605.

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Derringer, Kathryn. "Angiogenesis in human dental pulp following orthodontic tooth movement." Thesis, King's College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271545.

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Weltman, Belinda Jessica. "Root resorption associated with orthodontic tooth movement a systematic review /." Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1236022079.

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Vakani, Arvind Kenneth. "Effect of nitric oxide (NO) on orthodontic tooth movement in rats." [Gainesville, Fla.]: University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000811.

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Goldade, Kent Douglas. "Physical properties of the upper lip measured during simulated tooth movement." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq23317.pdf.

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Saloom, Hayder Fadhil. "The influence of obesity on orthodontic tooth movement : a clinical study." Thesis, King's College London (University of London), 2017. https://kclpure.kcl.ac.uk/portal/en/theses/the-influence-of-obesity-on-orthodontic-tooth-movement(4d0d68c8-99da-47eb-bb29-0e472bec3db4).html.

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Obesity is a global public health problem, arising from the interaction between behavioural, environmental and genetic factors. The implications of obesity on orthodontic treatment included orthodontic treatment plan, less cooperation, longer duration and more healthrelated problems. However no data exists in relation to orthodontic tooth movement (OTM) in obese patients, from either a clinical or biochemical perspective. The aim of this project was to study the influence of obesity on OTM by measuring (1) The rate of tooth movement and the time taken to achieve completion of tooth alignment using fixed orthodontic appliances in normal weight and obese patients; (2) The effect of obesity on orofacial pain response during the early stages of orthodontic treatment with fixed-appliances; and (3) The effect of obesity on the biochemical changes in unstimulated whole mouth saliva (UWMS), gingival crevicular fluid (GCF) and serum with and without orthodontic treatment. Different biomarkers were detected, including (1) Obesity-related biomarkers such as adiponectin, leptin and resistin; (2) Tissue remodelling biomarkers such as Matrix metalloproteinase-8 (MMP8), Matrix metalloproteinase-9 (MMP9) and their inhibitor (TIMP-1); (3) Bone remodelling biomarker such as Receptor Activator of Nuclear Factor Kappa B Ligand (RANKL); and (4) Inflammation biomarker such as Myeloperoxidase (MPO) and C-reactive protein (CRP). Two main studies were conducted in this thesis: The first study is a cross sectional study in which UWMS, GCF and serum were collected from normal weight and obese adults (18-45 years) without orthodontic treatment. Same samples were collected from a matched number, age and gender of normal weight and obese patients have fixed orthodontic appliance with 0.019 x 0.025 – inch stainless steel archwire in upper and lower arches. The rationale behind this study is to detect the effect of obesity and/or orthodontic treatment on the levels of the selected biomarkers in different bio-fluids. The second study is a prospective cohort study in which data were collected from 12-18 years old normal weight and obese patients at 4 time-points: (T1) prior to treatment at the normal records appointment; (T2) 1 hour following placement of the fixed appliance; (T3) 1 week following placement of the fixed appliance; and (T4) at the end of alignment stage (0.019 x 0.025 – inch stainless steel archwire in the lower arch). The responses to orthodontic treatment were assessed in different ways: (1) Rate of tooth movement using dental study casts (T1, T3, T4); (2) Pain and discomfort using a self-reporting questionnaire (1st week); and (3) Biochemical assay of markers in UWMS, GCF and peripheral serum (T1, T2, T3, T4). The data of this study presented that the rate of OTM was significantly higher in obese patients compared to normal weight, and obese patients needed less time to achieve tooth alignment compared to normal weight, but this was non-significant. Obese patients experience higher mean pain than normal weight patients accompanied by higher consumption of analgesics. Alongside, GCF was more likely to express biochemical changes during OTM compared to UWMS and serum, with GCF-levels of leptin; resistin, MPO and RANKL were significantly different between obese and normal weight patients and associated with observed rates of OTM.
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Bellante, Laurel. "Building the local food movement in Chiapas, Mexico: rationales, benefits, and limitations." SPRINGER, 2016. http://hdl.handle.net/10150/623140.

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Alternative food networks (AFNs) have become a common response to the socioecological injustices generated by the industrialized food system. Using a political ecology framework, this paper evaluates the emergence of an AFN in Chiapas, Mexico. While the Mexican context presents a particular set of challenges, the case study also reveals the strength the alternative food movement derives from a diverse network of actors committed to building a “community economy” that reasserts the multifunctional values of organic agriculture and local commodity chains. Nonetheless, just as the AFN functions as an important livelihood strategy for otherwise disenfranchised producers it simultaneously encounters similar limitations as those observed in other market-driven approaches to sustainable food governance.
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Lopes, Michelle Cristina. "Efeito do conteudo de monomero na proporção monomero-polimero no deslocamento dental em protese total superior." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288554.

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Orientador: Rafael Leonardo Xediek Consani
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-14T14:57:31Z (GMT). No. of bitstreams: 1 Lopes_MichelleCristina_M.pdf: 433524 bytes, checksum: 7d01d350cce34280c9bae82f9e766739 (MD5) Previous issue date: 2009
Resumo: O propósito neste estudo foi verificar a movimentação linear de dentes em prótese total superior confeccionada em resina acrílica, com conteúdo de monômero na proporção monômero-polímero indicado pelo fabricante, com 25% de excesso e com 25% a menos, nas técnicas de polimerização convencional e por microondas. Foram confeccionados 30 modelos em gesso pedra tipo III, a partir de um molde de silicone, representando uma arcada maxilar desdentada com rebordo normal. As bases de prova foram confeccionadas com espessura de ±2,5mm e os planos de orientação em cera, com 1cm de altura posterior e 2 cm de altura anterior. O modelo de gesso com o plano de orientação em cera foi fixado no ramo superior do articulador semi-ajustável, com distância intercondilar média, ângulo de Bennet em 15 graus e guia condilar em 30 graus. Em seguida, um modelo de arcada mandibular dentada foi posicionado sobre o plano de cera do modelo superior e fixado na haste inferior do articulador, posicionando o pino incisal em zero. Depois da montagem dos dentes artificiais, o modelo da prótese foi removido do articulador e moldado com silicone. Os dentes foram colocados no molde e sobre eles foi vertida cera rosa liquefeita, até o completo preenchimento do molde. Antes da solidificação da cera, o modelo de gesso foi adaptado no molde e mantido em posição até o completo esfriamento da cera, quando o conjunto modelo de gesso-base de prova com dentes artificiais foi removido do molde. Foram confeccionados pontos referenciais sobre a região mediana da borda incisal dos incisivos centrais, cúspide vestibular dos primeiros pré-molares e cúspide disto-vestibular dos segundos molares, por meio de perfurações para fixação de segmentos de alfinetes metálicos com adesivo instantâneo à base de cianoacrilato. As mensurações foram realizadas nas distâncias transversais entre: incisivos centrais; primeiros pré-molares; e segundos molares, e ântero-posteriores entre: incisivo central direito e molar direito; incisivo central esquerdo e molar esquerdo, com microscópio comparador linear antes da inclusão e depois do acabamento das próteses. Nos grupos com proporção recomendada pelos fabricantes, as próteses foram prensadas convencionalmente. Nos demais grupos, os mesmos procedimentos foram adotados, com exceção da proporção de monômero que foi de 25% a mais ou 25% a menos. Os dados de deslocamento dental foram submetidos à análise de variância e ao teste de Tukey (5%). Não houve diferença estatística entre os grupos com quantidade de monômero recomendada pelo fabricante (grupo controle) e os demais grupos tanto na polimerização convencional como por microondas. A alteração na quantidade de monômero para mais ou para menos em relação à proporção monômero-polímero não influenciou a movimentação dental linear nos sentidos transversal e ântero-posterior.
Abstract: The purpose of the study was to verify the linear displacement of the teeth in complete upper denture made with acrylic resin, with monomer content indicated by the manufacturer, with 25% in excess and 25% less, in the conventional and microwaves polymerization techniques. Thirty casts were made with type III stone plaster, based on silicone mould, representing an edentulous maxillary arch with normal edge. The wax baseplates were manufactured in a ±2.5mm thickness and the wax rims with 10 mm of posterior height and 20 mm of anterior height. The stone cast related with the wax rim was fixed at the top stem of semi-adjustable articulator, adjusting the intercondylar distance in Medium, the angle of Bennet in 15 degrees and the condylar guidance in 30 degrees. A mandibular arch with teeth was placed on the wax rim and fixed on the bottom shaft of the articulator, positioning the incisal pin to zero. After mounting the artificial teeth, the denture was removed from the articulator and impressed with silicone. The teeth were placed in the impression mold and over them it was poured a liquid wax, until the mold filling was completed. Before solidification of the wax, the stone cast mold was adapted in the impression and kept in position until the wax setting. After wax setting, the stone cast- denture with artificial teeth set was removed from the silicone impression. Reference points were fixed over the median region of the incisal edge of central incisors, buccal cusp of the first premolar and distal-buccal cusp of the second molars in drill holes performed for fixation of the metal pin segments with instantaneous adhesive based on cyanoacrylate. The measurements were made in the transverse distances among: central incisors; first premolar; second molar, and anteroposterior among: central right incisor and right molar; central left incisor and left molar, with a linear comparator microscope before and after denture procedure. In the groups with monomer content recommended by the manufacturer, the dentures were conventionally pressed. In the other groups, the same procedures were adopted, with exception of the monomer content that was 25% in excess or 25% less. The dental displacement data were submitted to ANOVA and Tukey's test (5%). There was no statistically significant difference among the groups with the monomer content recommended by the manufacturer and other groups, in both conventional and microwaved activations. To change the content of monomer to more or less in relation to monomer-polymer proportion did not influence the linear displacement of the teeth in transverse or anteroposterior directions.
Mestrado
Protese Dental
Mestre em Clínica Odontológica
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Silva, Vanessa Camila da. "Efeitos da intrusão ortodôntica na reparação de lesões de furca grau III em cães, e da presença de TNFα e/ou IL-β 1 na mecanoresposta de células ósseas in vitro /." Araraquara : [s.n.], 2008. http://hdl.handle.net/11449/104736.

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Resumo: O objetivo dessa tese foi avaliar os efeitos da intrusão ortodôntica no processo de reparação de lesão de furca grau III em cães, e da presença de fator de necrose tumoral alfa (TNFα) e/ou interleucina-1 beta (IL-1ß) na mecanoresposta de células com característica de osteócitos e osteoblastos in vitro. No estudo in vivo, lesões de furca grau III foram criadas em pré-molares inferiores de sete cães. Após 75 dias, as lesões foram aleatoriamente tratadas com cirurgia a retalho (OFD) associada ou não à regeneração tecidual guiada (GTR) e enxerto ósseo autógeno (BA). Após um mês, iniciou-se a intrusão ortodôntica (I) em parte dos dentes tratados pelas duas diferentes abordagens (grupos teste), por meio de ancoragem em miniimplantes. Os cães foram sacrificados após três meses de movimentação e um mês de contenção. Todas as lesões de furca grau III foram reduzidas para grau II ou I nos grupos teste. O mesmo foi observado em 50% das lesões nos grupos controle (sem movimentação). O nível de inserção clínico foi reduzido nos grupos teste, no final da contenção (p<0.01). O grupo OFD+I apresentou maior preenchimento ósseo que os demais grupos (p<0.05), demonstrando superioridade desta associação, no tratamento de lesões de furca grau III, em cães. Esses resultados levantaram a hipótese de que o processo de degradação da membrana e/ou enxerto ósseo interagiria negativamente sobre o processo de reparo quando associado a forças ortodônticas, pois a presença de mediadores inflamatórios estaria intensificada. É conhecido que a alteração tecidual proveniente da movimentação ortodôntica é resultado da ação de mediadores químicos sobre as células dos tecidos periodontais. Portanto, buscamos avaliar in vitro a ação de duas citocinas pró-inflamatórias, TNFα e IL-1ß, sobre células ósseas em presença e ausência de carga mecânica.
Abstract: The aim was to assess the effects of orthodontic intrusion on the healing of class III furcation lesions in dogs, and of the presence of tumor necrosis factor alpha (TNFα) and/or interleukin-1 beta (IL-1ß) on the mechanoresponse of osteocyte and osteoblast-like cells in vitro. In the in vivo study, class III furcation lesions were created in lower pre-molars of seven mongrel dogs. After 75 days, teeth were randomly treated with open flap debridment (OFD) associated or not to guided tissue regeneration (GTR) and bone autograft (BA). After one month, teeth were randomly assigned to orthodontic intrusion using mini-implants anchorage or no movement. Dogs were sacrificed after three months of movement and one month contention. All class III furcations were closed or reduced to class II or I lesions in the intrusion groups while 50% of the class III lesions in non-moved teeth remained unchanged. Clinical attachment level was reduced in the intrusion groups by the end of contention (p<0.01). OFD + I presented smaller soft tissues area and larger bone tissue area than other groups (p<0.05). Orthodontic intrusion with mini-implants anchorage improved healing of class III furcation defects after OFD in dogs. Based on these results we hypothesized that degradation of membrane and/or bone autograft can negatively interfere on repair when associated to orthodontic movement because inflammatory mediators are intensified. It's known that cytokines are present during orthodontic movement which are acting on periodontal cells. Therefore we evaluated in vitro the effects of two pro-inflammatory cytokines, TNFα and IL-1ß, on bone cells in presence or absence of mechanical loading.
Orientador: Joni Augusto Cirelli
Coorientador: Rosemary Adriana Chiérici Marcantonio
Banca: Ana Cláudia Moreira Melo
Banca: Enilson Antonio Sallum
Banca: Ary dos Santos Pinto
Banca: Silvana Regina Perez Orrico
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Books on the topic "Limitations of tooth movement"

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Tooth movement. Basel: Karger, 2016.

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A, Norton Louis, Burstone Charles 1928-, and Biology of Tooth Movement Conference (1986 : Farmington, Conn.), eds. The Biology of tooth movement. Boca Raton, Fla: CRC Press, 1989.

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Krishnan, Vinod, and Ze'ev Davidovitch, eds. Biological mechanisms of tooth movement. Chichester, UK: John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118916148.

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Shroff, Bhavna, ed. Biology of Orthodontic Tooth Movement. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26609-1.

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Vinod, Krishnan, and Davidovitch Zeev, eds. Biological mechanisms of tooth movement. Chichester, West Sussex: Blackwell, 2009.

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Perspectives on a parent movement: The revolt of parents of children with intellectual limitations. [Cambridge, MA]: Brookline Books, 1990.

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Towards Black community development: Moving beyond the limitations of the lecture model : a critical review of the current Africentric movement. 2nd ed. Oakland, Calif: Advancing the Research, 1996.

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Kantarci, A., L. Will, and S. Yen, eds. Tooth Movement. S. Karger AG, 2015. http://dx.doi.org/10.1159/isbn.978-3-318-05480-4.

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Davidovitch, Zeev, and Vinod Krishnan. Biological Mechanisms of Tooth Movement. Wiley & Sons, Incorporated, John, 2015.

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Davidovitch, Zeev, and Vinod Krishnan. Biological Mechanisms of Tooth Movement. Wiley & Sons, Incorporated, John, 2015.

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Book chapters on the topic "Limitations of tooth movement"

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Salah, Philippe, and K. Hero Breuning. "Monitoring of Tooth Movement." In Digital Planning and Custom Orthodontic Treatment, 55–63. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119087724.ch8.

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Alikhani, Mani, Sarah Alansari, Chinapa Sangsuwon, Jeanne Nervina, and Cristina Teixeira. "Biphasic Theory of Tooth Movement: Cytokine Expression and Rate of Tooth Movement." In Biology of Orthodontic Tooth Movement, 45–65. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26609-1_3.

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Krishnan, Vinod, and Ze'ev Davidovitch. "Controversies in tooth-movement research." In Biological mechanisms of tooth movement, 261–78. Chichester, UK: John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118916148.ch18.

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Krishnan, Vinod, and Ze'ev Davidovitch. "Biology of orthodontic tooth movement." In Biological mechanisms of tooth movement, 15–29. Chichester, UK: John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118916148.ch2.

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Maleeh, Imad, Jennifer Robinson, and Sunil Wadhwa. "Role of Alveolar Bone in Mediating Orthodontic Tooth Movement and Relapse." In Biology of Orthodontic Tooth Movement, 1–12. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26609-1_1.

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Ferguson, Donald J., and M. Thomas Wilcko. "Tooth Movement Mechanobiology: Toward a Unifying Concept." In Biology of Orthodontic Tooth Movement, 13–44. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26609-1_2.

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Brezniak, Naphtali, and Atalia Wasserstein. "Orthodontitis: The Inflammation Behind Tooth Movement and Orthodontic Root Resorption." In Biology of Orthodontic Tooth Movement, 67–101. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26609-1_4.

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Hartsfield, James K., and Lorri Ann Morford. "Genetic Implications in Orthodontic Tooth Movement." In Biology of Orthodontic Tooth Movement, 103–32. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26609-1_5.

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Bartzela, Theodosia N., and Jaap C. Maltha. "Medication Effects on the Rate of Orthodontic Tooth Movement." In Biology of Orthodontic Tooth Movement, 133–59. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26609-1_6.

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Davidovitch, Ze'ev, and Vinod Krishnan. "Biological basis of orthodontic tooth movement." In Biological mechanisms of tooth movement, 1–14. Chichester, UK: John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118916148.ch1.

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Conference papers on the topic "Limitations of tooth movement"

1

Dong, J., S. Y. Hong, and G. Hasselgren. "Tool Selection and Path Control for Automated Posterior Teeth Coronal Canal Treatment Preparation." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62519.

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This paper represents a part of research plan of “Advanced Endodontic Technology Development.” In order to aid endodontic treatment a 3-D computer model of root canals has been created which shows the geometrical characteristics. The extent of work needed for root canal treatment is obtained from this 3-D model. The objective of this paper is to convert the geometrical characteristics into automatic treatment procedure planning. This computer-aided process planning for endodontic treatment determines tool selection and process method. It also calculates tool path and optimum tool movement distance. The output of this planning system is a numerical controlled program. Because of paper size limitation, only tool selection and path control during coronal canal treatment preparation for posterior teeth are discussed in the paper. The computer-aided treatment procedure planning system provides transformation from a 3-D canal model to a machine-controlled program that will yield a treated root canal ready for filling. It serves as a bridge between design (3-D canal model) and manufacturing (canal treatment). Unlike conventional methods for root canal treatment, the computer-aided treatment process planning system emphasizes a non-destructive internal tooth geometry examination and less invasive access preparation.
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Dong, J., S. Y. Hong, and G. Hasselgren. "Tool Selection and Path Control for Automated Anterior Teeth Coronal Canal Treatment Preparation." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80473.

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This paper represents a part of research plan of “Advanced Endodontic Technology Development”. In order to aid endodontic treatment a 3-D computer model of root canals has been created which shows the geometrical characteristics. The extent of work needed for root canal treatment is obtained from this 3-D model. The objective of this paper is to convert the geometrical characteristics into automatic treatment procedure planning. This computer-aided process planning for endodontic treatment determines tool selection and process method. It also calculates tool path and optimum tool movement distance. The output of this planning system is a numerical controlled program. Because of paper size limitation, only tool selection and path control during coronal canal treatment preparation for anterior teeth are discussed in the paper. The computer-aided treatment procedure planning system provides transformation from a 3-D canal model to a machine-controlled program that will yield a treated root canal ready for filling. It serves as a bridge between design (3-D canal model) and manufacturing (canal treatment). Unlike conventional methods for root canal treatment, the computer-aided treatment process planning system emphasizes a non-destructive internal tooth geometry examination and less invasive access preparation.
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Bani-Hani, Muath, and M. Amin Karami. "Piezoelectric Tooth Aligner for Accelerated Orthodontic Tooth Movement." In 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2018. http://dx.doi.org/10.1109/embc.2018.8513375.

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Sufarnap, Erliera, Ervina Sofyanti, and Syafrudin Ilyas. "The Effect of Platelet-Rich Plasma to Orthodontic Tooth Movement." In International Dental Conference of Sumatera Utara 2017 (IDCSU 2017). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/idcsu-17.2018.22.

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Febrina Pargaputri, Agni, and Noengki Prameswari. "The Role of Osteocytes in Alveolar Bone During Tooth Movement." In Surabaya International Physiology Seminar. SCITEPRESS - Science and Technology Publications, 2017. http://dx.doi.org/10.5220/0007331700100014.

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Erliera, Aditya Rachmawati, and Veranyca Chiuman. "Osteoclast and Osteoblast Quantity Change in Guinea Pig’s Tooth Movement." In International Conference of Science, Technology, Engineering, Environmental and Ramification Researches. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0010076405050508.

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Li, Zhanli, Kangjun Li, and Binjie Li. "Research on Path Planning for Tooth Movement Based on Genetic Algorithms." In 2009 International Conference on Artificial Intelligence and Computational Intelligence. IEEE, 2009. http://dx.doi.org/10.1109/aici.2009.422.

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Trejo-Guerra, R., E. Tlelo-Cuautle, J. M. Munoz-Pacheco, and C. Sanchez-Lopez. "Frequency limitations from the circuit realization of saw-tooth based multi-scroll oscillators." In 16th Int'l Symposium on Theoretical Electrical Engineering (ISTET). IEEE, 2011. http://dx.doi.org/10.1109/inds.2011.6024824.

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Camerlingo, C., F. d'Apuzzo, V. Grassia, G. Parente, L. Perillo, and M. Lepore. "Micro-Raman spectroscopy during orthodontic tooth movement: Follow-up of gingival status." In 2015 International Conference on BioPhotonics (BioPhotonics). IEEE, 2015. http://dx.doi.org/10.1109/biophotonics.2015.7304028.

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LoPresti, Edmund, David M. Brienza, and Jennifer Angelo. "Computer head control software to compensate for neck movement limitations." In Proceedings on the 2000 conference. New York, New York, USA: ACM Press, 2000. http://dx.doi.org/10.1145/355460.355551.

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Reports on the topic "Limitations of tooth movement"

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Savchenko, Olena. ANALYSIS OF THE APPLICATION OF LASER RADIATION IN THE PROCESS OF ORTHODONTIC TOOTH MOVEMENT AND SUGGESTIONS ABOUT THE IMPROVEMENT OF TECHNOLOGY. Intellectual Archive, June 2019. http://dx.doi.org/10.32370/iaj.2148.

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Dalton, Ben. The Landscape of School Rating Systems. RTI Press, September 2017. http://dx.doi.org/10.3768/rtipress.2017.op.0046.1709.

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The rise of the accountability movement in education has resulted in the proliferation of school report cards, school ratings and rankings, and other kinds of performance reporting for public consumption and policy use. To understand the strengths and limitations of school rating systems and the role they play in shaping public perceptions and school improvement practices, this paper situates rating systems within the broader field of comparative organizational assessments and neo-institutional theory; describes school rankings and rating systems in use by states and consumer-oriented enterprises; and details four aspects of school ratings (measurement, transformation, integration, and presentation) that affect their use and interpretation.
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Roberts, Tony, and Kevin Hernandez. Open Data for Agriculture and Nutrition: A Literature Review and Proposed Conceptual Framework. Institute of Development Studies (IDS), January 2021. http://dx.doi.org/10.19088/ids.2021.018.

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This paper begins by locating the Global Open Data for Agriculture and Nutrition project (GODAN) in the context of wider debates in the open data movement by first reviewing the literature on open data and open data for agriculture and nutrition (ODAN). The review identifies a number of important gaps and limitations in the existing literature. There has been no independent evaluation of who most benefits or who is being left behind regarding ODAN. There has been no independent evaluation of gender or diversity in ODAN or of the development outcomes or impacts of ODAN. The existing research on ODAN is over-reliant on key open data organisations and open data insiders who produce most of the research. This creates bias in the data and analysis. The authors recommend that these gaps are addressed in future research. The paper contributes a novel conceptual ‘SCOTA’ framework for analysing the barriers to and drivers of open data adoption, which could be readily applied in other domains. Using this framework to review the existing literature highlights the fact that ODAN research and practice has been predominantly supply-side focused on the production of open data. The authors argue that if open data is to ‘leave no one behind’, greater attention now needs to be paid to understanding the demand-side of the equation and the role of intermediaries. The paper argues that there is a compelling need to improve the participation of women, people living with disabilities, and other marginalised groups in all aspects of open data for agriculture and nutrition. The authors see a need for further research and action to enhance the capabilities of marginalised people to make effective use of open data. The paper concludes with the recommendation that an independent strategic review of open data in agriculture and nutrition is overdue. Such a review should encompass the structural factors shaping the process of ODAN; include a focus on the intermediary and demand-side processes; and identify who benefits and who is being left behind.
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Internal High Ratio Gear Rotary Actuator with Involute Profile for Variable Compression Ratio Systems. SAE International, September 2021. http://dx.doi.org/10.4271/2021-01-5091.

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This paper introduces an internal high ratio gear system with eccentric movement using an involute tooth profile but not the commonly used cycloidal gear profile, and a solution deemed particularly suitable for variable compression ratio actuators. The design challenges of these rotary actuators are discussed, contact ratio values exhibited, and efficiency measurements shown.
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