Academic literature on the topic 'Partial removable prosthesis'

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Journal articles on the topic "Partial removable prosthesis"

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Dragomir, Georgiana, Alexandru Titus Farcasiu, and Iulia Pascal. "Romanian dentists’ perception of flexible removable partial dentures." Romanian Journal of Stomatology 67, no. 1 (2021): 53–56. http://dx.doi.org/10.37897/rjs.2021.1.9.

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Introduction. A flexible partial denture, as a treatment solution for partial edentulousness, is a current alternative in dental prosthetics, due to simplified design, aesthetic and biomechanical qualities of resin materials, that contribute to the favourable distribution of masticatory forces on the dental and mucosal support. Objective. This study aims to highlight the medical perception of Romanian dentists regarding the evolution of patients treated with flexible partial dentures. Material and method. The research was carried out over a period of two years (2017-2019), on a study group composed of 84 Romanian dentists. Subjects were asked to answer an anonymous questionnaire consisting of 14 closed questions, to outline frequently aspects encountered in practice related to the clinical evolution of the patient rehabilitated with flexible partial removable dentures. Outcomes. Patient comfort (76%) and higher aesthetic properties (54%) were the main reasons why dentists chose a partially flexible prosthetic for the prosthetic treatment of the patient. In the evolution of prosthetic patient, the main problems found at the partial flexible prosthesis were food pigment impregnation of the base (51%) and limited possibilities of repair (34%). Changes in maintenance, support, stability, aesthetic or possible fractures of base and clasps were seen by 46% of respondents, at approximately 1 to 2 years after the application of flexible partial dentures. Conclusions. Flexible partial prosthesis is a method of treatment, whose main advantages are represented by esthetics and superior adaptation of the patients, but because of the deficiencies that occur over time, it is better to be recommended as a provisional treatment solution.
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Cunha, Maria Aparecida Gonçalves Melo, Antônio Thomaz Gonzaga Matta-Machado, Simone Dutra Lucas, and Mauro Henrique Nogueira Guimarães Abreu. "Availability of Dental Prosthesis Procedures in Brazilian Primary Health Care." BioMed Research International 2018 (2018): 1–5. http://dx.doi.org/10.1155/2018/4536707.

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Objectives. To describe dental prosthesis provision in the Brazilian public health service and report the performance of dental prosthesis procedures according to the Brazilian macroregions. Methods. A structured interview was conducted with senior-level health professionals from each of the 18,114 oral health teams (OHT). The dependent variables were performance of removable prostheses and prosthesis procedures, including provision of fixed prostheses by OHT. Descriptive statistics were produced together with performing a cluster analysis using SPSS version 19.0. Results. The manufacture of any type of prosthesis was done by a minority of OHT (43%). The most commonly provided types of dental prosthesis were removable full and partial dentures. Cluster 1 (teams that performed prosthesis procedures the most) was composed of a smaller number of teams (n = 5,531), and Cluster 2 (composed of teams that do not perform prosthetics or that perform them in small amounts) consisted of 12,583 teams. The geographic distribution of clusters reveals that the largest proportion of Cluster 1 teams is located in the Northeast (33.9%) and Southeast (33.6%). Conclusions. A minority of OHT produce dental prostheses. There is an unequal geographical distribution of clusters.
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Gitanjali Mago and Puneet Sharma. "Flexible Denture: A Hope for Partial Edentulous Patient- A Case Report." International Healthcare Research Journal 3, no. 8 (2019): 267–70. http://dx.doi.org/10.26440/ihrj/0308.11302.

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The various treatment options for the aesthetic and functional rehabilitation of partially edentulous patients are conventional fixed partial dentures, implant supported fixed partial dentures and removable partial dentures. In some cases, removable partial dentures may be the only choice which is available other than implants and fixed partial denture. Removable cast partial dentures are used as definitive removable prostheses when indicated, but location of clasps is not aesthetically pleasant. So, when patient is concerned about aesthetics, flexible partial dentures which is aesthetically superior may be considered. But for the success of flexible removable partial denture, proper diagnosis, treatment planning, insertion, wearing and maintenance of this prosthesis is very important.
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Koodaryan, Roodabeh, and Ali Hafezeqoran. "The Quality of Written Prescriptions Received at Dental Laboratories in Tabriz, Iran." Global Journal of Health Science 8, no. 12 (2016): 266. http://dx.doi.org/10.5539/gjhs.v8n12p266.

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<p><strong>AIM:</strong> This study was aimed at evaluating the quality of written prescriptions for fixed and removable prosthesis in Tabriz, northwest Iran.<strong></strong></p><p><strong>METHODS:</strong> To assess the quality of written prescriptions for fixed and removable partial dentures, a total of 600 questionnaires were distributed among 15 licensed dental laboratories receiving both fixed and removable prosthesis projects. The technicians were instructed to complete the questionnaires for all the received projects of fixed and removable partial prostheses and the responses were evaluated.</p><p><strong>RESULTS:</strong> Only 9.3% of prescriptions had clearly mentioned the status of disinfection. The patient’s demographic data (age and sex) was noted in 41.3% of written prescription. Information about the shade, ceramic veneering area, and margin design of fixed partial dentures were determined in 82.6%, 16.3%, and 13.3% of cases, respectively. The number of pontics was mentioned in 41% and pontic design in 11% of written prescriptions. For removable partial prostheses, the clasp type and position and connector design were specified in 47.7% and 30.7% of cases, respectively. However, artificial tooth molds were only mentioned in 27.3% of prescriptions<strong>.</strong></p><p><strong>CONCLUSION: </strong>Unfortunately, written prescriptions were mostly incomplete which may adversely affect the quality of prosthetic treatment. </p>
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Kozak, R. V., and D. M. Korol. "MATHEMATICAL SUBSTANTIATION OF THE USE OF DIFFERENT TYPES OF CLAMMERS DURING THE RESTORATION OF THE DENTITION WITH DOUBLE-SIDED DISTAL DEFECTS AND THE DEFECT INCLUDED IN THE FRONTAL AREA BY REMOVABLE PROSTHETICS." Medical and Ecological Problems 23, no. 1-2 (2019): 13–16. http://dx.doi.org/10.31718/mep.2019.23.1-2.03.

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The basic conditions that ensure good functional qualities and durability of prosthetic structures from the point of view of biomechanics, undoubtedly include an optimal way of fixing a partial removable prosthesis, which consists in the correct choice of the clamping system that ensures reliable fixation of the prosthesis in the given position and at the same time causing a minimum of harm supporting teeth, as well as the most rational distribution of occlusal loads transmitted to the supporting tissues, since it is these factors that determine the durability functioning dentures. The purpose of biomechanical studies is to analyze the stress-strain state of the supporting teeth of partial removable prostheses replacing the included and terminal defects of the dentition when fixing the prosthesis on the supporting teeth with the help of holding and supporting-retaining clamps. The studies were performed on a model of the mandible with overall dimensions of the cross section corresponding to some average dimensions. The first volumetric finite element model was developed to study the stress-strain state of periodontal ligaments of supporting teeth and supporting gingival tissues when the incomplete and bilaterial end defects of the dentition were replaced (1 class 1 subclass by Kennedy) of the mandible by a removable denture with fixation by retaining clamps on the canines and the first premolars. The second volumetric finite element model is designed to study the stress-strain state of periodontal ligaments of supporting teeth and supporting gum tissues when the included and two-sided end defects of the dentition of the lower jaw are replaced by a removable clasp prosthesis with fixation of support-retaining clamps on canines and first premolars with support arms of clamps from the distal sides of premolars. As a result of the studies performed, the following conclusions can be drawn: In both considered variants fixation of removable clasp prostheses loaded with maximum values of equivalent stresses in the periodontium of the supporting teeth is localized at the apex of the alveolar ridge, which indicates the transfer of the "clutching" supporting teeth of the clasp prosthesis. The maximum values f equivalent stresses in the periodontitis of the supporting teeth during fixation of the removable clasp prosthesis by the support-retaining clamps on the canines and the first premolars exceed the corresponding values of the equivalent stresses for the case of fixing the prosthesis with retention clamps by 30-140%! With an increase in gum compliance, the values of equivalent stresses in the periodontitis of the supporting teeth during fixation of the removable clasp prosthesis by the retaining clasps vary insignificantly within 25%, and an increase in the corresponding equivalent stresses with the use of support-holding clasps may be 65%. In order to ensure the maximum sparing regimen of periodontal tissues of supporting teeth and as a result - the possibility of the most prolonged use of the prosthesis without loosening of the supporting teeth, it seems more expedient to give preference to the use of clasp prostheses with the fixation of the retaining clasps.
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Shetty, Mallika S., Sanath Kumar Shetty, Suhaim Sayyed Karkala, Zahid Mohammed, and Tushar Milind Wankhede. "Prosthetic Management of a Posterior Ridge Defect Case with Fixed Removable Type of Hybrid Prosthesis - A Case Report." Journal of Evolution of Medical and Dental Sciences 10, no. 36 (2021): 3192–95. http://dx.doi.org/10.14260/jemds/2021/648.

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The main aim of prosthetic dentistry is restoring the form, function, comfort and appearance of the patient by the placement of a prosthesis replacing the missing teeth and contiguous tissues.1 Various prosthetic options for partially edentulous patients include an interim removable partial denture (RPD) to a cast partial denture, a fixed dental prosthesis (FDP), and a more implant-retained prosthesis. However, FDP and implant-retained prosthesis are not always feasible, particularly in patients with excessive residual ridge resorption and jaw defects due to trauma and / or surgical ablation. In such a situation, a dentist may resort to another option of fixed-RPD prosthesis, to restore the defective hard and soft tissues to achieve natural aesthetics, phonetics, comfort, and better hygiene. This hybrid prosthesis fulfils the objectives of the rehabilitation such as support, stability, and retention characteristics similar to a fixed prosthesis and aesthetics and hygiene maintenance of a removable prosthesis.2,3,4,5 Any prosthesis designed or fabricated should be based on the prosthetic principles of support, stability, retention, and preservation of remaining structures.1 From the patient's perspective, retention is one of the important factors for its acceptability. These retentive options range from simple bar and clip attachments to more sophisticated spark erosion overdentures.6,7 Spark erosion prosthesis is technique sensitive, bulky, and requires expensive equipment.6,7 On the other hand, precision attachments provide better vertical support and stimulation to the underlying tissue through intermittent vertical massage.8 Treatment with a hybrid denture is an affordable choice to fulfil the patient's aesthetic demands along with providing a good prognosis for the prosthesis and preservation of the remaining dentition. This article presents two case reports of prosthodontic rehabilitation of a patient with mandibular defects using an attachment-retained fixed-removable hybrid prosthesis.
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Dastevski, Blagoja, Aneta Mijoska, Biljana Kapusevska, et al. "Retention of Approximal Guiding Plane Surfaces in Removable Partial Skeletal Prosthesis." Open Access Macedonian Journal of Medical Sciences 6, no. 6 (2018): 1120–25. http://dx.doi.org/10.3889/oamjms.2018.230.

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BACKGROUND: The morphology of the retention tooth often does not correspond with the required design; hence there is often an indication for enamel recontouring or other restorative procedures.AIM: The study aimed to determine the impact of changing the path of insertion of the prosthesis by reshaping the anatomical and morphological structures of the natural teeth predetermined for the retention of the prosthesis.MATERIAL AND METHODS: The group of 40 patients with Class II, Subclass 1 according to Kennedy was formed, and 120 approximal surfaces of retention teeth were obtained. Two different types of prostheses were made on the models: one group in the zero point position of the model, and another group in the zero position of the model, with changing of the direction of input at an angle of 2˚.RESULTS: The difference between the established and theoretical normal distribution of frequencies was tested with the Kolmogorov-Smirnov and Lilliefors tests (r < 0.10; r < 0.01). The first group showed a retention force of 0.08 N. In the second group the retention force was 0.94 N.CONCLUSION: It could be concluded that the change in the path of insertion of the dental prosthesis with conservative restorations as composite inlays, as well as the accurate extension of the prosthesis onto guiding plane surfaces, will undoubtedly increase the retention force of the prosthesis.
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Batalha, A. E. F., and R. M. Araújo. "Development of removable partial dentures by using additive manufacture and casting processes." Archives of Materials Science and Engineering 1, no. 87 (2017): 33–40. http://dx.doi.org/10.5604/01.3001.0010.5969.

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Purpose: This work aims to present a methodology developed for dimensional analysis of removable partial dentures, following a route with a model manufactured by additive manufacture and a further casting process of a Co-Cr alloy part. Design/methodology/approach: The method for designing and manufacturing removable partial dentures (RPD) is focused on their completely virtual design. They are manufactured with resin additive manufacturing chrome-cobalt cast alloys. A 3D image correlation scanner was used for dimensional and geometrical tolerance analysis. Findings: The prostheses manufactured by CAD-CAM route are more accurate than conventional ones, but they suffer distortion during the casting process. This distortion did not interfere with the patient's well-being or with the adaptation to the prosthesis. Research limitations/implications: The technique presented herein paper allows preparing better fitting prosthesis. Providing the best comfort and masticatory power. Practical implications: Improving the precision in the manufacturing process of a removable partial denture is very important for professional dentists and their patients. Originality/value: The proposed technique and the work approach provide the prosthesis preparation with shorter ambulatory time in addition to greater comfort to the patient.
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Friel, Tim, and Sarah Waia. "Removable Partial Dentures for Older Adults." Primary Dental Journal 9, no. 3 (2020): 34–39. http://dx.doi.org/10.1177/2050168420943435.

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Improvements in oral health including increased retention of natural teeth have given rise to a partially dentate older population. Replacement of missing natural teeth is important to improve function, aesthetics and quality of life for this patient group. A variety of options are available to replace missing teeth in partially dentate older adults, including fixed, removable and implant retained prostheses. This article will discuss the provision of removable partial dentures including treatment planning and denture design. When planning removable partial dentures, careful attention must be paid to stabilising the patient prior to delivering any prosthesis. Partial dentures should be designed to minimise the potential for plaque accumulation with carefully designed metal based frameworks. Acrylic resin can also be utilised with attention to detail to minimise the risk of damage to delicate supporting tissues. Removable dentures have the advantage that they can be readily added to in the event of further tooth loss which may be particularly relevant for older adults. Partial dentures which optimise support, retention and stability can function very successfully and significantly improve patients’ oral health related quality of life.
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Amorim, José Benedito Oliveira, Sylvia Bicalho Rabelo, Ana Carolina Souza, et al. "Masticatory muscle activity evaluation by electromyography in removable partial denture users." Brazilian Dental Science 16, no. 4 (2013): 41. http://dx.doi.org/10.14295/bds.2013.v16i4.917.

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<p><strong>Objectives: </strong>The aim of this study was to evaluateby electromyography the activity of the temporalisand masseter muscles in removable partial dentures(RPDs) users, before and after new RPDs installation.<strong>Material and Methods: </strong>Ten patients were selectedfor this study. All subjects were edentulous in theposterior mandibular region (Kennedy class I orII), fully dentate in the antagonist arch, and dentalprosthesis users, which needed to be replaced. Theelectromyographic activity (EMG) recorded thesuperficial masseter and temporalis muscles, duringthe maximum voluntary bite force and the restposition. Maximum mouth opening was also verified.The measurements were recorded at four specifictimes: using the old prosthesis (T0), right after thenew prosthesis installation (T1), two weeks (T2) andfour weeks (T4) after installing the new prosthesis.All the RPDs were made by an experienced dentistand the same laboratory. Data were statisticallyanalyzed by ANOVA and Tukey tests (α = 0.05).<strong>Results: </strong>EMG values had high standard deviation atthe time T0. Generally, the mean values decreasedafter new prosthesis installation, especially aftertwo weeks from the installation (T2). During therest position, the left masseter and left temporalismuscles showed statistically significant gradualdecrease in their activities over time. <strong>Conclusion:</strong>New prostheses have positive effect on the patient’smuscular activity. However, an adaptation period ofthe muscle fibers to the new prosthesis is needed.</p><p>Keywords<br />Electromyographic activity; Dental occlusion; Masseter; Removable partial dentures; Temporalis.</p>
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Dissertations / Theses on the topic "Partial removable prosthesis"

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Navarro, Jéssica Nery. "\"Avaliação comparativa por meio de eletromiografia de superfície do padrão de comportamento dos músculos masseter e temporal em pacientes parcialmente edentados antes e após a reabilitação com próteses parciais removíveis\"." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/23/23137/tde-07052007-180334/.

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Como um procedimento de avaliação, a eletromiografia clínica de superfície, envolve a detecção e o registro de potenciais elétricos de fibras musculares esqueléticas, fornecendo um instrumento útil para documentar o papel do músculo na atividade física e para avaliar a integridade do sistema neuromuscular. Tendo em vista sua utilidade, somada a relatos na literatura da existência de comprometimento muscular nos pacientes parcialmente edentados, e ainda a inexistência de relatos literários sobre a modificação do padrão de atividade muscular nos pacientes parcialmente edentados após a reabilitação; nosso objetivo nessa pesquisa foi registrar e comparar eletromiograficamente, as atividades musculares, de pacientes classe I e II de Kennedy (edentados posteriores uni ou bilaterais) em um dos arcos, antes e de 2 a 3 semanas após a instalação de próteses parciais removíveis (PPRs) e assim verificar o comportamento dos músculos masseter direito e esquerdo e temporal (feixe anterior) direito e esquerdo nessas duas situações durante a execução de abertura máxima, contração isométrica máxima voluntária (CIMV), repouso e mastigação. Após a realização desse estudo, pudemos concluir que a utilização das PPRs, restabelece os contatos oclusais posteriores perdidos e desta forma, modifica para melhor as atividades eletromiográficas da musculatura em questão (masseter e temporal). Os pacientes monitorados apresentaram um aumento extremamente significante (p < 0,0001) da eficiência da musculatura estudada durante a mastigação e ainda uma diminuição, também extremamente significante (p < 0,0001), da atividade elétrica dos masseteres e temporais durante o período de repouso e na execução da abertura máxima.<br>As an evaluation proceeding, the clinical surface electromyograph, envolves the detection and the registration of electric potential of muscular skinny fibers, being an useful instrument to verify the hole of the muscle in the physical activity and to evaluate the neuromuscular system condition. Keeping in mind its usefulness, added up to literature reports of the existence of muscular compromising in the partially edentulous patients, and also, the non-existence of literary articles reporting modification of muscular activity pattern in partially edentulous patients after the oral rehabilitation; our purpose in doing this research is register and compare by electromyographic study, the muscular activities, of Kennedy class I or II patients (uni or bilateral partially edentulous) in one of the arches, before and after the installation of removable partial dentures (RPDs) and also, check the behaviour of the elevator muscles: right and left masseter and right and left anterior temporal in these two situations during the execution of maximal opening, maximal isometric voluntary contraction (MIVC), rest and mastication. At the end of this study, we could conclude that the use of the RPDs, restores the oclusal contats (previously lost) and in this way, modifies the electromyographic activities of the evaluated muscles (masseter and anterior temporal). The monitored patients presented an increase extremely significant (p < 0,0001) of the musculature efficiency during the mastication and also, an extremely significant reduction (p <0,0001), of the electric activity of the four muscles during the period of rest and during the maximal opening movement.
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Gonçalves, Thais Marques Simek Vega 1980. "Masticatory function in partially edentulous patients after rehabilitation with removable and fixed prosthesis over osseointegrated implants = Função mastigatória de pacientes parcialmente edêntulos após reabilitação com próteses removíveis e fixas sobre implantes osseointegrados." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288671.

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Orientador: Renata Cunha Matheus Rodrigues-Garcia<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-23T21:43:34Z (GMT). No. of bitstreams: 1 Goncalves_ThaisMarquesSimekVega_D.pdf: 2684657 bytes, checksum: b1b361a499cc2e74dc84aa2b63d2ae75 (MD5) Previous issue date: 2013<br>Resumo: Estudos revelam melhora na mastigação após o uso de próteses sobre implantes osseointegrados. Entretanto, poucos são aqueles que avaliam a mastigação de pacientes parcialmente edêntulos, comparando a função mastigatória após a reabilitação por meio de diferentes próteses parciais, o qual foi o objetivo deste ensaio clínico pareado. Para tanto, foram selecionados 12 voluntários (8 gênero feminino, idade média 62.6 ± 7.8 anos), apresentando edentulismo total superior e parcial inferior (classe I de Kennedy), os quais receberam, de forma sequencial, próteses parciais removíveis (PPR), PPR com encaixe implanto-retido (PPRI) e prótese parcial fixa sobre implantes (PPFI). Todos os tratamentos foram realizados na mandíbula e utilizados por 2 meses antes da avaliação mastigatória, enquanto a maxila recebeu uma nova prótese total que foi utilizada durante todo o estudo. A mastigação foi avaliada por meio da mensuração da performance mastigatória (PM), índice de trituração dos alimentos (ITA), força máxima de mordida (FMM), espessura dos músculos masseter e temporal, movimento mastigatório, limiar de deglutição (LD), habilidade mastigatória, estado nutricional, qualidade de vida (QV) e satisfação do paciente. Foi realizada a análise exploratória dos dados e aplicada análise de variância para medidas repetidas seguido de teste de Tukey-Kramer para as comparações múltiplas entre os tratamentos. Todas as análises foram realizadas utilizando SAS software (release 9.1, 2003; SAS Institute Inc., Cary, USA) (p ? 0.05). A PM melhorou consideravelmente após o uso de PPRI e PPFI com aumento de 85% e 87%, respectivamente. Resultados similares foram observados em relação ao ITA e à FMM com aumento (p ? 0.0001) de 91% e 62% no ITA de 79% e 62% na FMM após o uso de PPRI e PPFI, respectivamente. Independente do tipo de prótese, o uso de PPRI e PPFI aumentou a espessura do masseter durante a contração voluntária máxima (p ? 0.0001) e alterou o movimento mastigatório, reduzindo o tempo total do ciclo, bem como a duração das fases de abertura e fechamento (p ? 0.05). A habilidade mastigatória melhorou após o uso da PPRI e PPFI, independente do alimento avaliado. O LD foi alterado pelo tratamento reabilitador, com redução no número de ciclos e tamanho da partícula triturada, sendo os menores valores observados com o uso da PPFI. Houve aumento no consumo de fibras (p = 0.007), cálcio (p = 0.001) e ferro (p = 0.02) após o uso de PPFI, além da redução no consumo de alimentos com altos níveis de colesterol (p = 0.02). A satisfação aumentou (p ? 0.05) e o impacto da saúde oral na QV reduziu, tanto no score geral (p = 0.04) quanto no domínio de dor física (p = 0.02) após o uso da PPFI. A reabilitação de pacientes parcialmente edêntulos com PPRI e PPFI melhorou significativamente a função mastigatória e a magnitude do efeito relacionou-se ao tipo de prótese<br>Abstract: Studies revealed the masticatory improvement after the use of prosthesis over dental implants. However, few are those who evaluated the chewing of partially edentulous patients, comparing the masticatory function after treatment with different partial dentures, which was the aim of this paired clinical trial. Therefore, 12 volunteers (8 females, mean age 62.6 ± 7.8 years) presenting total edentulism in maxilla and partial edentulism in the mandible (Kennedy class I) were selected and received, in a sequential way, a conventional removable partial dentures (RPD), implant-retained partial dentures (IRPD) and implant fixed partial denture (IFPD). All treatment were assembled in the mandible and used for 2 months, while the edentulous maxilla received a new complete denture which was used throughout the study. Mastication was assessed by measuring masticatory performance (MP), food comminution index (FCI), maximum bite force (MBF), masseter and temporal muscle thickness, chewing movements, swallowing threshold (ST), masticatory ability, nutritional status, quality of life (QOL) and patient satisfaction. Data were analyzed and repeated measures analysis of variance was applied followed by Tukey-Kramer multiple for comparisons between treatments. All analyzes were performed using SAS software (release 9.1, 2003, SAS Institute Inc., Cary, USA) (p ? 0.05). MP greatly improved after IRPD and IFPD use with an increase of 85% and 87% respectively. Similar results were observed in respect to FCI and MBF with an increase (p ? 0.0001) of 91% and 62% in FCI and of 79% and 62% in MBF after the IRPD and IFPD use, respectively. Regardless the prosthesis type, the use of IRPD and IFPD increased the masseter thickness during maximum voluntary clenching (p ? 0.0001) and altered the chewing movements, reducing the total cycle time, as well as the duration of opening and closing phases (p ? 0.05). MA improved after IRPD and IFPD use, irrespectively of the food rated. ST was affected by prosthetic treatment, showing a reduction in the number of chewing cycles and in the size of the comminuted particle, with the lowest values observed after IFPD use. There was a raise in fiber (p = 0.007), calcium (p = 0.001) and iron (p = 0.02) intake after the IFPD use and a reduction in the intake of food with high cholesterol levels (p = 0.02). Patients satisfaction also increased (p ? 0.05) and the impact of oral health on QOL decreased in overall score (p = 0.04) and in the physical pain domain (p = 0.02) after the IFPD use. The rehabilitation of partially edentulous patients with IRPD and IFPD significantly improved masticatory function and the magnitude of the effect was related to the prosthesis type<br>Doutorado<br>Protese Dental<br>Doutora em Clínica Odontológica
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Aquino, Luana Maria Martins de. "Avalia??o da desadapta??o das selas de pr?teses parciais remov?veis ap?s 1 a 5 anos de uso." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17047.

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Made available in DSpace on 2014-12-17T15:30:52Z (GMT). No. of bitstreams: 1 LuanaMMA.pdf: 2018250 bytes, checksum: 40d3a2d59df5edbadcdae3ffaf599eb2 (MD5) Previous issue date: 2009-02-03<br>The non-adaptation of the removable partial prosthesis (RPP) base to fibromucosal tissue is caused by resorption of residual ridges (RRR). The onset of bone resorption, which occurs after tooth extraction and continues throughout life, is accelerated by local or systemic factors. Aim: Assess the degree of non-adaptation of removable partial prosthesis saddles and the factors that influence it. Methodology: A sectional study was conducted with 81 patients using RPP who had their prostheses installed between 2003 and 2007 (1 to 5 years of use) at the Faculty of Dentistry of the Universidade Federal do Rio Grande do Norte (UFRN). After anamnese and clinical examination, a cast was made with polyether-based material, using the base of the prosthesis to make the impression. The base of the saddle was loaded with the casting material and positioned in the mouth, applying pressure on the supports. After polymerization, the material was removed from the saddle and measurements were taken at 3 different points using a pachymeter. Results: The non-adaptation of the saddle increased significantly with years of use (p = 0.005). The tooth-tissue supported prostheses obtained higher mean non-adaptation values than those of tooth supported prostheses (p < 0.001). Flaccid mucosa showed the worst non-adaptation results, which were statistically different from resilient mucosa (p < 0.001). The greater the extension of the saddle, the greater the non-adaptation (p < 0.001). The natural tooth antagonistic arch yielded better results than did RPP and total prosthesis (p < 0.001). Saddle non-adaptation at the free end was less near the pillar tooth and greater in the more posterior region (p < 0.001). When adaptation of the supports to the niches was poor, greater saddle non-adaptation occurred than when it was good or fair (p < 0.001). Saddles located in the posterior region of the arch had greater non-adaptation than those in the anterior region (p = 0.023). Conclusion: The mean non-adaptation of the saddle to the residual ridges was 0.27 mm. It can be concluded that, even with the use of RPP, bone height reduction was slight within the 1-5-year period of use. The following are factors that influence adaptation of the RPP saddle base: years of use, age, force transmission path to the alveolar bone, location of the toothless area, antagonistic arch, type of mucosa, adaptation of supports to the niche and extension of the saddle<br>A desadapta??o da base das pr?teses parciais remov?veis (PPR) com o tecido fibromucoso ? causada pela reabsor??o dos rebordos residuais (RRR). A reabsor??o ?ssea inicia logo ap?s a exodontia de um elemento dent?rio e continua por toda a vida, sendo acelerada por fatores locais ou sist?micos. Objetivo: Avaliar o grau de desadapta??o das selas de pr?teses parciais remov?veis e os fatores que a influenciam. Metodologia: Foi realizado um estudo seccional com 81 pacientes usu?rios de PPR que instalaram suas pr?teses no per?odo de 2003 a 2007 (1 a 5 anos de uso) no Departamento de Odontologia da UFRN. Ap?s a anamnese e do exame f?sico, foi realizada uma moldagem com material a base de poli?ter, utilizando a base da pr?tese como moldeira, para copiar o espa?o existente entre a base da sela e o rebordo residual. A base da sela foi carregada com o material de moldagem e levada em posi??o na boca, fazendo-se press?o sobre os apoios. Ap?s a polimeriza??o, removeu-se o material de moldagem da sela e realizou-se a medi??o da espessura do molde com o aux?lio de um paqu?metro manual. Resultados: A desadapta??o da sela aumentou significativamente a medida que aumentavam os anos de uso (p=0,005). Indiv?duos com 50 anos ou mais, apresentaram maior desadapta??o do que indiv?duos mais jovens (p<0,001). As pr?teses dentomucossuportadas obtiveram maiores m?dias de desadapta??o do que as dentossuportadas (p<0,001). O tipo de mucosa fl?cida apresentou piores resultados de adapta??o sendo estatisticamente diferente da mucosa resiliente (p<0,001). Quanto maior a extens?o da sela, maior a desadapta??o (p<0,001). O arco antagonista dente natural apresentou melhores resultados em rela??o a PPR e pr?tese total (p<0,001). A desadapta??o da sela em extremidade livre foi menor pr?ximo ao dente pilar e maior na regi?o mais posterior da sela (p<0,001). A adapta??o dos apoios aos nichos quando se encontrava ruim obteve maior desadapta??o da sela comparadas as adapta??es do tipo boa e regular (p<0,001). Selas localizadas em regi?o posterior do arco obtiveram maiores desadapta??o que as selas em regi?o anterior (p=0,023). Conclus?o: A m?dia de desadapta??o da sela sobre os rebordos residuais foi de 0,27mm, podendo-se concluir que, mesmo com o uso da PPR, a redu??o da altura ?ssea foi pequena dentro do per?odo de 1 a 5 anos de uso. S?o fatores que influenciam na adapta??o da base da sela de PPR: tempo de uso da pr?tese, idade, via de transmiss?o de for?a para o osso alveolar, local da ?rea desdentada, arco antagonista, tipo de mucosa, adapta??o dos apoios nos nichos e extens?o da sela
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Yeung, Lai-ping Agnes. "Oral and prosthetic findings of cobalt-chromium removable partial denture wearers a five-year survey /." Hong Kong : Faculty of Dentistry, The University of Hong Kong, 1996. http://sunzi.lib.hku.hk/HKUTO/record/B3862803X.

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楊麗萍 and Lai-ping Agnes Yeung. "Oral and prosthetic findings of cobalt-chromium removable partial denture wearers: a five-year survey." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B3862803X.

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Friedli, Monika Kaufmann Regula. "Removable partial dentures with implant support in strategic position : prosthetic results /." [S.l.] : [s.n.], 2008. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000279100.

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Meira, Vânia Irina Da Rocha. "Próteses dentárias removíveis flexíveis: uma solução alternativa." Master's thesis, 2019. http://hdl.handle.net/10284/8828.

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Na medicina dentária, os principais objetivos são os de diagnosticar, tratar e prevenir todas as patologias dentárias. Quando se depara com ausência de dentes a sua preocupação é a de restituir função e estética de modo a conseguir melhorar a qualidade de vida dos pacientes. Com a evolução dos materiais e da medicina em si, é possível projetar diferentes alternativas para a reabilitação oral. O objetivo desta dissertação é o de mencionar as características e indicações das próteses confecionadas com material flexível de forma a conhecer o seu desempenho clínico através de uma pesquisa bibliográfica. Como método de pesquisa foi feita uma revisão bibliográfica de acordo com as palavras-chave alusivas ao tema em questão. As palavras-chave utilizadas na pesquisa foram: “flexible denture”, “nylon prosthesis”, “dental prothesis”, “removable partial flexível denture”.<br>In dentistry, the main objectives are to diagnose, treat and prevent all dental pathologies. When faced with toothlessness, their concern is to restore function and aesthetics in order to improve patients' quality of life. With the evolution of materials and medicine itself, it is possible to design different alternatives for oral rehabilitation. The aim of this dissertation is to mention the characteristics and indications of prostheses made with flexible material in order to know their clinical performance through a bibliographic search. As a research method, a bibliographic review was made according to the keywords related to the theme in question. The keywords used in the research were: flexible denture, nylon prosthesis, dental prothesis, removable partial flexible denture.
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Desplanches, Marlène Suzanne. "Estratégias de reabilitação em prótese parcial removível de extremo livre: revisão bibliográfica." Master's thesis, 2017. http://hdl.handle.net/10284/6339.

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Pacientes parcialmente desdentados têm uma ampla gama de alterações físicas e condições de saúde. Os desdentados de classes I e II de Kennedy apresentam-se como as classes mais complexa em termos de biomecânica oral. O objetivo deste trabalho foi avaliar as diferentes classificações das desdentações de extremo livre, identificação dos diferentes materiais de impressão, as técnicas utilizadas para a confecção das PPRs de extremo livre que apresentam um impacto positivo na reabilitação, como a técnica de modelo modificado. Visando uma reabilitação protética de qualidade, tendo em conta satisfação do paciente, a necessidade de conscientização do mesmo, bem como a sua capacidade a aceitação da PPR como uma necessidade essencial para uma vida com saúde e bem-estar. Identificando necessidades, hábitos dos pacientes e de práticas de higiene oral, manutenção das próteses, exames periódicos, a adaptação as mesmas.<br>Partially edentulous patients have a wide range of physical changes and health conditions, edentulous Kennedy I and II classes present themselves as the most complex classes in terms of oral biomechanics. The objective of this work was to evaluate the different classifications of free end indentations, identification and the different printing materials, the techniques used to make free end PPRs that have a positive impact on rehabilitation, as the modified model technique. Aiming at a prosthetic rehabilitation with quality, taking into account patient satisfaction, the need for awareness of it, as well as its ability to accept the PPR as an essential need for a life with health and well-being. Identifying needs, patients' habits and oral hygiene practices, maintenance of the prostheses, periodic exams, adaptation to them.
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Ferreira, Nuno Miguel Farias Dias. "Reabilitação de selas livres com prótese removível : caracterização e resolução de complicações." Master's thesis, 2015. http://hdl.handle.net/10400.14/18788.

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Introdução: a reabilitação oral com prótese parcial removível assume um papel muito relevante no restabelecimento das principais funções do sistema estomatognático, em função da prevalência das desdentações parciais numa população cada vez mais envelhecida. Nesta perspetiva, torna-se importante conhecer e caracterizar as principais complicações associadas ao uso de próteses parciais removíveis, por forma a contribuir para a otimização da sua resolução. Objetivos: identificar e caracterizar as complicações existentes em próteses parciais removíveis em desdentações tipo classe I e II de Kennedy, assim como o processo de resolução das mesmas. Metodologia: este estudo é do tipo observacional longitudinal retrospectivo. Foi efetuada uma pesquisa dos pacientes reabilitados com prótese parcial removível, em desdentações tipo Classe I e II de Kennedy, na Clínica Universitária da Universidade Católica Portuguesa, desde o ano de 2011. Para tal foi utilizado o programa de gestão clínica NewSoft®, assim como os registos em papel da Área Disciplinar de Prótese Removível. Foi também solicitada a comparência dos pacientes em consultas de controlo para atualização de dados e registo de eventuais alterações da sua reabilitação protética. Após caracterização das complicações e da sua resolução, realizou-se uma análise comparativa com: género, idade, ano de colocação da PPR, localização da PPR e tipo de desdentação baseado na classificação de Kennedy. Comparou-se ainda a presença/identificação de patologia sistémica relevante para o metabolismo ósseo com a necessidade de rebasamento das selas. Os dados recolhidos foram tratados e sujeitos a análise estatística recorrendo ao programa IBM SPSS Statistics, v21.0.0 (Software Statistical Package for the Social Science). Resultados: A complicação biológica mais verificada foi a doença periodontal nos dentes pilares; por outro lado, a complicação mecânica mais incidente foi a necessidade de rebasamento das selas; no que diz respeito à análise comparativa, não se verificou uma relação significativa de dependência entre nenhuma das varáveis abordadas, isto é, em parâmetros como género, idade, ano de colocação da PPR, localização da PPR e tipo de desdentação (segundo Kennedy) não foi averiguada uma relação significativa com nenhuma das complicações protéticas abordadas. Conclusões: Segundo este estudo, não existe uma relação significativa entre género, idade, ano de colocação da PPR, localização da PPR e tipo de desdentação (segundo Kennedy) e cada uma das complicações protéticas abordadas, quer biológicas, quer mecânicas. São requeridos, portanto, novos estudos, com uma maior dimensão amostral, um maior tempo de follow-up e com intervenientes reabilitados noutras clínicas médico-dentárias universitárias e/ou privadas.<br>Introduction: the oral rehabilitation with removable partial prosthesis plays a very important role in the restoration of the main functions of the stomatognathic system due to the prevalence of partial edentulism in an increasingly aging population. In this perspective it is important to know and to characterize the main complications associated with the use of removable partial dentures in order to contribute to the optimization of their resolution. Objectives: To identify and characterize the existing failures in removable partial prosthesis in Kennedy’s class I and II type edentulism, as well as the process of resolving them. Materials and Methods: This study was a retrospective longitudinal observational study type. It was performed a survey of rehabilitated patients with removable partial dentures in Kennedy’s class I and II type edentulism in the University Clinic of Portuguese Catholic University, since the year 2011. For that it was used the clinical management program called NewSoft®, as well as the paper records of Removable Prosthodontics Subject Area. It was also requested to attend the patients in control visits for data update and registration of any changes in its prosthetic rehabilitation. After complications characterization and their resolution it was analysed a relationship with: gender, age, year of RPD placement, RPD location and type of edentulism based on Kennedy‘s classification. It was also compared the presence / identification of systemic pathology with relevance in bone metabolism with the need for saddles relining. The collected data was processed and subjected to statistical analysis using the IBM SPSS Statistics program, v21.0.0 (Software Statistical Package for the Social Sciences). Results: The most observed biological complication was periodontal disease in abutment teeth; on the other hand, the more common mechanical complication was the need for saddles relining; into the comparative analysis, there was no significant dependence relationship between any of the variables discussed; in other words in parameters such as gender, age, year of RPD placement, RPD location and type of edentulism (based on Kennedy) it wasn’t found a significant relationship with any of prosthetic complications addressed. Conclusions: According to this study, there was no significant relationship between gender, age, year of placement of PPR, the PPR location and type of edentulous (based on Kennedy) and each of the prosthetic complications addressed, whether biological or mechanical. Therefore it is required further studies with a larger sample size, a bigger follow-up time and participants rehabilitated in others dental university clinics and/or private clinics.
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Sousa, Vera Lúcia Azevedo de. "Accuracy of intraoral digital impressions and conventional impressions: at the level of partial removable prostheses." Master's thesis, 2017. http://hdl.handle.net/10316/81980.

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Trabalho de Projeto do Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina<br>Introdução: A introdução do sistema CAD/CAM permite utilizar ficheiros STL obtidos por uma câmara intra-oral para confeção de próteses removíveis em modelos 3D, com a ausência do envio de modelos de gesso ou impressões convencionais em silicone ou alginato para o laboratório.Materiais e Métodos: Realizou-se uma revisão bibliográfica na base de dados PubMed com a combinação de palavras-chave e conectores Booleanos: “removable dentures” OR “removable prostheses” AND (“digital impression technique” OR “CAD/CAM”) NOT “fixed prostheses”, seguida de uma segunda revisão nas bases de dados PubMed, Web of ScienceTM, B-On, ClinicalKey® e ScienceDirect com a combinação: “CAD/CAM” AND “Intraoral digital impression” AND “Prosthodontic”. O estudo clínico piloto consistiu na realização, em 3 doentes, de duas impressões convencionais em alginato e duas impressões digitais intraorais com o scanner Cerec Omnicam (Dentsply Sirona, Wals, Áustria), efetuadas pelo mesmo operador. Os dois modelos de gesso obtidos das impressões convencionais foram digitalizados, pelo mesmo scanner, e as duas imagens resultantes foram sobrepostas, assim como as duas imagens das impressões digitais. Seguiu-se a análise através de medições lineares no software Cerec inLab SW 15.0 (Sirona Dental Systems, Wals, Áustria).Resultados: Na revisão bibliográfica obtivemos 35 artigos na Pubmed. Após leitura do título, abstract e aplicando os critérios de inclusão, selecionamos 4 artigos. Atráves das bases de dados ClinicalKey®, B-On, Web of ScienceTM e ScienceDirect selecionamos 14 artigos e 5 por referência cruzada manual, ficando com 23 artigos. Na análise das imagens, realizamos medições lineares, horizontais e verticais, para verificar a exatidão e a precisão, respectivamente. A exatidão variou em média 0,31mm e 0,49mm entre o modelo de referência e os modelos virtuais obtido pela digitalização do modelo de referência e da digitalização intra-oral, respectivamente. A precisão das impressões digitais intra-orais apresenta melhores resultados do que as impressões convencionais em desdentações parciais com pequenas áreas edêntulas. Conclusão: Dentro das limitações deste estudo, podemos verificar que análise da precisão das impressões digitais apresentou melhores resultados do que os modelos de referência digitalizados em desdentados parciais com pequenas áreas êdentulas. Neste estudo piloto verificou-se que a precisão da técnica de impressão digital é influenciada pelas condições da cavidade oral e pelo tipo de substrato digitalizado, já as diferenças na exatidão podem atribuir-se à mudança dimensional do alginato e distorção dos modelos de referência. A análise da exatidão da técnica de impressão convencional é influenciada pelos problemas intrínsecos à mesma e por não terem sido utilizados pontos de referência precisos para efetuar as medições.<br>Introduction: The introduction of CAD/CAM technology allows the use of STL files obtained by an intraoral camera for production of fixed and removable prostheses, without sending cast stone models or conventional intraoral impressions in silicone or alginate to the laboratory.Materials and Methods: A literature review was carried out through the search engine: Pubmed, using the combinations of key-words and Boolean connectors: “removable dentures” OR “removable prostheses” AND (“digital impression technique” OR “CAD-CAM”) NOT “fixed prostheses” and then a second literature review was carried out through the search engines: PubMed, Web of ScienceTM, B-On, ClinicalKey® and ScienceDirect, using the combination:“CAD/CAM” AND “Intraoral digital impression” AND “Prosthodontic”. A clinical pilot study was performed with 3 patients, each patient had two conventional impressions in alginate and two intraoral digital impressions done with the Cerec Omnicam scanner (Dentsply Sirona, Wals, Austria), by the same operator; posteriorly, two stone cast models were also scanned. The two scans of the digital impressions were overlapped as were the two scans the stone cast models and analyzed in the Cerec inLab SW 15.0 software (Sirona Dental Systems, Wals, Austria). Results: In the literature review, we obtained 35 articles in the PubMed. After reading title, abstract and applying the inclusion criteria, we selected 4 articles. Through search engine ClinicalKey®, Web of ScienceTM, B-On and ScienceDirect were selected 14 articles and 5 articles by manual cross reference, staying with 23 articles. In the images analysis, linear measurements, horizontal and vertical were obtained, to verify trueness and precision, respectively. The trueness varied in mean 0.31mm and 0.49mm between the reference model and the virtual models obtained by the scan of the reference model and the intraoral scan, respectively. The precision of intraoral digital impressions are better than conventional impressions in partial edentulous jaws with small edentulous areas. Conclusion: Within the limitations of this study, we can verify that the precision analysis of intraoral scans was better than the scans of reference model in partial edentulous jaws with small edentulous areas. In this pilot study we verified that the precision of digital impression technique is influenced by the oral cavity conditions and by substrate scanning and the differences in the trueness can be attributed to the dimensional change of the alginate and distortion of the reference models. The trueness analysis of the conventional impression technique was influenced by intrinsic problems and the fact that precise reference points for measurements were not used.
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Books on the topic "Partial removable prosthesis"

1

Shiba, Akihiko. The conical double-crown telescopic removable periodontic prosthesis. Ishiyaku EuroAmerica, Inc., 1993.

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J, Wiebelt Frank, ed. An atlas of removable partial denture design. Quintessence Pub. Co., 1988.

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Removable partial dentures on osseointegrated implants: Principles of treatment planning and prosthetic rehabilitation in edentulous mandible. Quintessence, 1998.

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1913-, Miller Ernest L., ed. Removable partial prosthodontics. 3rd ed. Mosby Year Book, 1991.

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B, Carr Alan, and McCracken William L, eds. McCracken's removable partial prosthodontics. Mosby, 2000.

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J, Castleberry Dwight, and McCracken William L, eds. McCracken's removable partial prosthodontics. 9th ed. Mosby, 1994.

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Katsev, Robert A. Partial denture design: A lingual locking approach. Ishiyaku EuroAmerica, 1987.

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Katsev, Robert A. Partial denture design: A lingual locking approach. Ishiyaku EuroAmerica, 1987.

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Precision Attachments in Prosthodontics: Overdentures and Telescopic Prosthesis. Quintessence Pub Co, 1985.

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McCracken's Removable Partial Prosthodontics. Elsevier - Health Sciences Division, 2015.

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Book chapters on the topic "Partial removable prosthesis"

1

Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Treatment of a Partially Edentulous Patient with Implant-Retained Removable Partial Denture Prosthesis." In Clinical Cases in Prosthodontics. Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch6.

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Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Treatment of a Partially Edentulous Patient with Fixed and Removable Prostheses." In Clinical Cases in Prosthodontics. Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch7.

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Çağlar Çınar, İhsan, B. Alper Gültekin, Alper Sağlanmak, and Cem Töre. "Dental Implants." In Biomaterials. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.91377.

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The goal of modern dentistry is to return patients to oral health in a predictable fashion. The partial and complete edentulous patient may be unable to recover normal function, esthetics, comfort, or speech with a traditional removable prosthesis. The patient’s function when wearing a denture may be reduced to one sixth of the level formerly experienced with natural dentition; however, an implant prosthesis may return the function to near-normal limits. The esthetics of the edentulous patient is affected as a result of muscle and bone atrophy. In order to replace a missing tooth, the development of materials science and technology improved the materials for implant application. Nowadays, titanium has become the most popular implant material due to its advantages. The first submerged implant placed by Strock was still functioning 40 years later. Recently, zirconia implants and innovative surface designs are being researched and practiced. In this chapter, these materials will be comparatively discussed through contemporary literature and research.
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Carr, Alan B., and David T. Brown. "Removable Partial Denture Considerations in Maxillofacial Prosthetics." In McCracken's Removable Partial Prosthodontics. Elsevier, 2011. http://dx.doi.org/10.1016/b978-0-323-06990-8.00024-5.

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"Analysis of failure cobalt-chromiun alloy for partial removable dental prostheses." In Biodental Engineering II. CRC Press, 2013. http://dx.doi.org/10.1201/b15986-39.

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Conference papers on the topic "Partial removable prosthesis"

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Tsukanova, E. A., A. V. Sushchenko, A. V. Podoprigora, and P. A. Popov. "The interaction of methylacrylic polymer materials of removable plate prosthetics and the mucous membrane of the prosthetic bed of patients with partial secondary adentia and concomitant gastrointestinal diseases: a comparative analysis of complications." In General question of world science. L-Journal, 2020. http://dx.doi.org/10.18411/gq-30-11-2020-03.

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The article presents the data of an original study on the improvement of orthopedic treatment of partial secondary adentia in patients with concomitant chronic pathology of the gastrointestinal tract by the method of removable plate prosthetics. For this purpose, a comparative analysis of three alternative to each other preparations of methyl acrylic polymer for the manufacture of bases of prostheses was made: 1) «GC», 2) «3M-Espe», 3) «Ftorax». A scientific assumption has been formulated that the choice of a specific polymer preparation (within the comparison base) will lead to a change in the number of complications developing during the operation of the prosthesis. In three independent groups of patients, using the compared preparations of methyl acrylic polymer, the relative number of complications was estimated. After the implementation of the study, it was found that the most positive results are shown by the polymer «GC», the least positive – by the polymer «Ftorax», the polymer «3M-Espe» occupies an «intermediate position». The results obtained have a high level of statistical significance, which makes it possible to recommend them for consideration for use in the practice of orthopedic dentistry.
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Shanmuga Sundaram, Karibeeran, Gurusami Kiliyappan, and Senthil Kumaran Selvadurai. "The Influence of Laser Irradiation Parameters on Tribological Behaviour of Commercially Pure Titanium for Dental Prostheses." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66524.

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Laser shock peening (LSP) is one of the innovative technique that produces a compressive residual stress on the surface of metallic materials, thereby significantly increasing its fatigue life in applications where failure is caused by surface-initiated cracks. The specimens were treated with laser shock waves with different processing parameters, and characterization studies were made on treated specimens. The purpose of the present study was to investigate the influence of Nd:YAG laser on commercially pure titanium (CP-Ti) used in prosthetic dental restorations. The treatment influenced change in microstructure, micro hardness, surface roughness, and wear resistance characteristics. Though CP-Ti is considered as an excellent material for dental applications due to its outstanding biocompatibility, it is not suitable when high mastication forces are applied. In the present study, pulsed Nd:YAG laser surface treatment technique was adopted to improve the wear resistance of CP-Ti. The wear test pin specimens of CP-Ti were investment cast with centrifugal titanium casting machine. The wear properties of specimens were evaluated after LSP on a “pin-on-disc” wear testing tribometer, as per ASTM G99-05 standards. The results of the wear experiment showed that the treated laser surface has higher wear resistance, micro hardness, and surface roughness compared to as-cast samples. The improvement of wear resistance may be attributed due to grain refinement imparted by LSP processes. The microstructure, wear surfaces, wear debris, and morphology of the specimen were analyzed by using optical electron microscope, scanning electron microscope, and X-ray diffraction (XRD). The data were compared using ANOVA and post-hoc Tukey tests. The characteristic change resulted in increase in wear resistance and decrease in wear rate. Hence, it is evident that the more reliable and removable partial denture metal frameworks for dental prostheses may find its applications.
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