Examinando por Autor "Lazaro Prudencio, Jhenny Medalit"

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    Evaluation of dimensional accuracy changes and marginal adaptation of models fabricated using 3D dental printers with fixed prosthesis structures: An in vitro study.
    (Universidad Privada Norbert Wiener, 2024-06-14) Lazaro Prudencio, Jhenny Medalit; Gómez Carrión, Christian Esteban
    The objective of this study was to evaluate the differences in dimensional accuracy and marginal fit of models produced using 3D dental printers for fixed prosthesis structures. The methodology used a hypothetical-deductive method with a quantitative approach, applied type, and in vitro experimental design. The sample consisted of 120 models (60 models for LCD printer) (60 models for SLA printer). Two types of 3D printers (LCD and SLA) and the Dental System software by 3Shape were employed to assess the marginal fit with the fixed prosthesis structure and the dimensional distortion of the printed models. The results showed significant differences in dimensional accuracy and marginal fit between the LCD and SLA printers for different dimensions of dental pieces. In the LCD printer, in the Cervico-Occlusal section 3.4, a dimensional accuracy of approximately 0.0439 ± 0.055 mm and a marginal fit of 0.147 ± 0.051 mm were recorded. In contrast, in the SLA printer, in the Mesio-Distal section 3.4, a dimensional accuracy of around 0.1162 ± 0.031 mm and a marginal fit of 0.110 ± 0.031 mm were obtained. In conclusion, there are notable variations in dimensional accuracy and marginal fit in models produced by 3D printers for the creation of dental fixed prostheses (p ≤ 0.05).