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A influência do design dos scanbodies na fiabilidade das impressões digitais em desdentados totais reabilitados com implantes
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Resumo(s)
Com a evolução tecnológica, o fluxo de trabalho digital em Reabilitação Oral tornou-se mais previsível e preciso. Contudo, a sua aplicação em casos de desdentados totais reabilitados com implantes ainda apresenta algumas limitações, inerentes à ausência de referências anatómicas.
Neste contexto, a impressão digital com scanner intraoral constitui um passo fundamental para garantir a exatidão do modelo protético. A captura digital da posição dos implantes assenta na utilização de scanbodies, os componentes protéticos responsáveis pela transferência da posição tridimensional dos implantes para o software.
Entre outros fatores, o design do scanbody pode influenciar a precisão das impressões digitais, afetando a fiabilidade e o ajuste passivo das próteses.
Estudos recentes sugerem que scanbodies horizontais podem oferecer maior precisão em impressões digitais de arcadas totalmente desdentadas reabilitadas com implantes, comparativamente aos scanbodies de geometria vertical.
No entanto, a inexistência de um consenso na comunidade científica reforça a necessidade de verificar de que forma o design dos scanbodies influencia a fiabilidade das impressões digitais. O objetivo principal deste trabalho é avaliar a influência do design dos scanbodies na fiabilidade das impressões digitais em desdentados totais reabilitados com implantes, analisando comparativamente o impacto das geometrias verticais e horizontais e identificando orientações clínicas para otimizar a precisão do processo.
Metodologicamente, o projeto consiste numa revisão narrativa da literatura sobre a influência do design dos scanbodies em pacientes totalmente desdentados. Para o efeito, foi realizada uma pesquisa bibliográfica em bases de dados de referência, nomeadamente PubMed/MEDLINE, Scopus e Web of Science. Os artigos selecionados foram analisados de forma descritiva, comparando os resultados obtidos com os diferentes designs de scanbodies.
Em síntese, esta revisão narrativa pretende contribuir para uma seleção clínica dos scanbodies mais fundamentada na evidência científica atual.
Technological evolution in the dental field has led to the clinical application of a fully digital workflow in Oral Rehabilitation, which has shown predictable and highly accurate results. However, the application of this type of workflow in cases of fully edentulous patients rehabilitated with implants still presents some limitations, mainly due to the absence of anatomical landmarks. In this context, digital impressions using intraoral scanners constitute a fundamental step in ensuring the accuracy of the final prosthetic model. The digital capture of implant positions relies on the use of scanbodies: prosthetic components responsible for transferring the three-dimensional position of implants to the software. Among other factors, scanbody design can influence the accuracy of digital impressions, affecting the reliability of the virtual model and the passive fit of the prosthesis. Recent studies suggest that horizontal scanbody geometries may offer greater accuracy in digital impressions of fully edentulous arches rehabilitated with implants when compared with vertical geometry scanbodies. However, the lack of consensus within the scientific community reinforces the need to investigate how scanbody design influences the reliability of digital impressions in full-arch implant rehabilitations, contributing to the optimization of clinical protocols. The primary objective of this study is to evaluate the influence of scanbody design on the reliability of digital impressions in edentulous patients rehabilitated with implants, comparatively analysing the impact of vertical and horizontal geometries and identifying clinical guidelines to optimize the process. Methodologically, this project consists of a narrative literature review on the influence of scanbody design in fully edentulous patients. To this end, a bibliographic search was conducted in reference databases, namely PubMed/MEDLINE, Scopus and Web of Science. The selected articles were descriptively analysed, comparing the results obtained with different scanbody designs. Overall, this literature review aims to contribute to informed clinical decision-making regarding scanbody design selection.
Technological evolution in the dental field has led to the clinical application of a fully digital workflow in Oral Rehabilitation, which has shown predictable and highly accurate results. However, the application of this type of workflow in cases of fully edentulous patients rehabilitated with implants still presents some limitations, mainly due to the absence of anatomical landmarks. In this context, digital impressions using intraoral scanners constitute a fundamental step in ensuring the accuracy of the final prosthetic model. The digital capture of implant positions relies on the use of scanbodies: prosthetic components responsible for transferring the three-dimensional position of implants to the software. Among other factors, scanbody design can influence the accuracy of digital impressions, affecting the reliability of the virtual model and the passive fit of the prosthesis. Recent studies suggest that horizontal scanbody geometries may offer greater accuracy in digital impressions of fully edentulous arches rehabilitated with implants when compared with vertical geometry scanbodies. However, the lack of consensus within the scientific community reinforces the need to investigate how scanbody design influences the reliability of digital impressions in full-arch implant rehabilitations, contributing to the optimization of clinical protocols. The primary objective of this study is to evaluate the influence of scanbody design on the reliability of digital impressions in edentulous patients rehabilitated with implants, comparatively analysing the impact of vertical and horizontal geometries and identifying clinical guidelines to optimize the process. Methodologically, this project consists of a narrative literature review on the influence of scanbody design in fully edentulous patients. To this end, a bibliographic search was conducted in reference databases, namely PubMed/MEDLINE, Scopus and Web of Science. The selected articles were descriptively analysed, comparing the results obtained with different scanbody designs. Overall, this literature review aims to contribute to informed clinical decision-making regarding scanbody design selection.
Descrição
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Palavras-chave
Scanbodies Impressão digital Reabilitação de desdentados totais Implantes dentários