Thomaz Faraco Zanetti
Thomaz Faraco Zanetti
Professional Profile
Thomaz Faraco Zanetti is a mechanical engineer, technology developer, researcher, and engineering executive whose professional trajectory is centered on three-dimensional acquisition technologies, photogrammetry, digital manufacturing, hardware and software development, and the translation of engineering systems into practical biomedical and clinical applications.
He is Engineering Director at dOne 3D, a Brazilian technology company focused on three-dimensional acquisition and digital manufacturing solutions. His activities include the development and technical implementation of integrated systems involving optical capture, computational processing, digital models, engineering hardware, software, and digital-to-physical manufacturing workflows.
His professional work is particularly relevant to the interface between engineering and healthcare, where the usefulness of a digital technology depends not only on technical innovation, but also on measurement accuracy, repeatability, reproducibility, acquisition conditions, calibration, computational processing, manufacturing fidelity, and compatibility with real clinical workflows.
His participation in scientific research and technological innovation provides the Journal of Digital Health and Advanced Biomaterials (JDHAB) with an industry-facing perspective on how emerging three-dimensional technologies progress from engineering development toward experimental validation and applied biomedical use.
Engineering and Technology Leadership
Zanetti's professional activity combines engineering development with practical technology implementation.
At dOne 3D, his work involves systems in which mechanical engineering, digital acquisition, optical technologies, computational processing, software architecture, and manufacturing must operate as an integrated workflow.
This systems-oriented approach is important because the performance of a three-dimensional technology cannot be attributed to a single component in isolation. Camera geometry, illumination, calibration, acquisition protocol, reconstruction algorithms, mesh processing, file transformations, manufacturing parameters, and operator procedures may all influence the final output.
His engineering background therefore provides experience with the complete technological chain, from initial design and prototype development through validation, implementation, and practical use.
3D Engineering and Digital Acquisition
Three-dimensional acquisition is a central component of Zanetti's technological work.
Digital acquisition systems convert optical information obtained from physical objects or anatomical surfaces into digital three-dimensional representations.
This process requires integration among acquisition geometry, image quality, sensor configuration, calibration, computational reconstruction, surface generation, and subsequent digital processing.
In biomedical applications, additional requirements emerge because anatomical surfaces are complex and the resulting models may be used for measurement, treatment planning, documentation, design, or manufacturing.
Consequently, engineering performance must be evaluated relative to the intended use of the technology rather than solely by the visual sophistication of the generated 3D model.
Photogrammetry and Facial 3D Reconstruction
Photogrammetry is one of the principal three-dimensional acquisition technologies associated with Zanetti's work.
Photogrammetric systems reconstruct surface geometry from images acquired from multiple viewpoints. Their performance depends on camera positioning, calibration, image correspondence, reconstruction algorithms, acquisition conditions, and the characteristics of the scanned surface.
Facial acquisition introduces additional complexity because soft tissues are dynamic, anatomical landmarks may be difficult to reproduce, and relatively small dimensional differences can influence clinical interpretation.
For this reason, three-dimensional facial scanning intended for clinical use requires quantitative evaluation of measurement reliability and accuracy.
Scientific Validation of 3D Facial Scanning
A particularly relevant component of Zanetti's trajectory is his participation in the scientific validation of three-dimensional technologies developed for clinical and dental applications.
He is a coauthor of a controlled clinical study evaluating the accuracy of the Cloner 3D photogrammetric facial scanner, connecting engineering development with formal assessment of measurement reliability and reproducibility.
The study included 11 participants and compared seven linear facial measurements obtained directly with a digital caliper with corresponding measurements performed on three-dimensional facial models generated through photogrammetric scanning.
Intra- and inter-examiner reliability were excellent, with intraclass correlation coefficients above 0.9. The overall measurement difference reported between direct and three-dimensional measurements was approximately −0.8 ± 1.2 mm.
Most investigated measurements remained within the clinical acceptability range established by the study, although three of the seven measurements exceeded that predefined threshold.
These findings illustrate an important principle for digital-health technologies: clinical applicability should be established through explicit validation protocols and quantitative evidence rather than inferred solely from technological capability.
Engineering Development and Scientific Validation
Zanetti's profile is characterized by a position at the interface between engineering development, technological implementation, and scientific validation.
Engineering development requires practical integration of hardware, software, optical acquisition, computational processing, manufacturing constraints, usability, maintenance, and implementation.
Scientific validation introduces a complementary requirement: performance must be demonstrated through transparent methods, reference measurements, reproducibility assessment, appropriate statistics, and interpretation proportional to the data.
His participation in the controlled clinical evaluation of the Cloner 3D scanner illustrates this transition. A technological system developed for three-dimensional facial acquisition was subjected to direct comparison with physical reference measurements and tested for intra- and inter-examiner reliability.
This development-to-validation pathway is particularly important in digital Dentistry and Digital Health, where sophisticated output does not automatically establish measurement validity or clinical usefulness.
Accuracy, repeatability, acquisition protocol, calibration, data processing, intended use, and clinically relevant thresholds must all be considered when evaluating a digital measurement technology.
Digital Manufacturing and Additive Technologies
Zanetti's engineering activities extend from digital acquisition into digital manufacturing and additive technologies.
A complete digital-manufacturing workflow may integrate three-dimensional scanning, surface reconstruction, mesh generation, computer-aided design, file transformation, additive manufacturing, and physical implementation.
The dimensional fidelity of the final component is therefore influenced by the entire chain. Acquisition error, digital reconstruction, mesh processing, transformation, manufacturing resolution, material properties, and post-processing can each contribute to the final result.
This systems-level perspective is especially relevant in Dentistry and biomedical engineering, where digital models may become the basis for guides, appliances, anatomical models, prosthetic components, and other patient-specific devices.
Hardware, Software and Integrated Digital Systems
Modern three-dimensional technologies depend on coordinated development of physical and computational components.
Zanetti's professional activities include engineering problems involving hardware configuration, optical acquisition, software integration, computational reconstruction, digital models, user workflows, and manufacturing processes.
This integrated perspective is relevant to scientific assessment because the performance of a digital system cannot be attributed exclusively to a sensor, software algorithm, scanner, or manufacturing device considered independently.
System-level validation requires understanding how individual components interact and how variability propagates through the complete workflow.
Biomedical and Assistive Technologies
Zanetti's technological activities also extend toward biomedical and assistive applications, demonstrating the translation of mechanical engineering and digital-manufacturing principles into human-centered technologies.
Such developments require simultaneous consideration of anatomical geometry, engineering constraints, device design, human–device interaction, manufacturing feasibility, fit, and intended functional use.
This translational dimension is particularly relevant to JDHAB because many biomedical technologies emerge through interdisciplinary collaboration among clinicians, engineers, designers, material scientists, and technology developers.
Technological Innovation and Intellectual Property
Zanetti is also involved in protected technological development through Brazilian intellectual-property activity.
Industry–Science Translation
A distinctive feature of Zanetti's contribution is his position at the interface between industrial technology development and scientific validation.
Industry develops technologies under practical constraints involving engineering feasibility, manufacturing, cost, usability, maintenance, implementation, scalability, and integration with existing workflows.
Scientific research introduces different but complementary requirements: explicit methodology, reference standards, reproducible measurements, statistical analysis, transparent reporting, and conclusions proportional to the available evidence.
Experience across these environments provides a valuable perspective for distinguishing technological novelty from scientifically demonstrated performance.
This distinction is especially relevant in rapidly developing areas such as digital Dentistry, biomedical imaging, three-dimensional scanning, patient-specific manufacturing, and additive technologies.
Advisory Role at JDHAB
As an Industry and Technology Advisory Board Member of the Journal of Digital Health and Advanced Biomaterials, Thomaz Faraco Zanetti contributes specialized expertise in mechanical engineering, three-dimensional scanning, photogrammetry, digital manufacturing, additive technologies, and biomedical engineering applications.
His perspective is particularly relevant to emerging technologies in which scientific claims depend on the performance of integrated hardware and software systems, digital acquisition, three-dimensional reconstruction, measurement accuracy, manufacturing fidelity, and clinically relevant validation.
His experience with the scientific assessment of a photogrammetric facial scanner also provides direct familiarity with the transition from technological development to quantitative clinical validation.
His advisory contribution supports the journal's understanding of technology development, engineering feasibility, manufacturing, and translation into practical biomedical applications.
This role remains distinct from routine manuscript handling, peer-review management, and editorial decision-making responsibilities, which remain under the journal's scientific editorial structure.
This separation allows JDHAB to benefit from specialized industry and engineering expertise while preserving the independence of scientific peer review and editorial decisions.
Technology and Advisory Focus
Selected Scientific and Technological Contributions
Contribution to the JDHAB Scientific and Technological Scope
Zanetti's profile strengthens the technological dimension of JDHAB by bringing direct engineering and industry experience to areas in which biomedical innovation depends on integrated digital systems.
His expertise is particularly relevant to technologies involving facial and anatomical scanning, photogrammetry, digital modeling, three-dimensional reconstruction, additive manufacturing, digital workflows, and patient-specific technological solutions.
His participation in controlled clinical validation of a facial scanner also provides experience at a critical boundary between technological development and scientific evidence.
This perspective reinforces a principle central to JDHAB: technological novelty alone does not establish measurement validity, reproducibility, or clinical usefulness.
Emerging systems should be evaluated through appropriate reference methods, accuracy testing, reproducibility assessment, transparent processing procedures, and validation appropriate to their intended use.
His industry experience further contributes practical knowledge of the engineering pathway from conceptual design through hardware, software, prototyping, manufacturing, validation, implementation, and real-world use.
As an advisory member rather than a routine scientific decision editor, he provides this technological perspective while maintaining an appropriate separation between industry consultation and the journal's independent peer-review and editorial decision processes.
