Publications by authors named "Luana O Fernandes"

This study aimed to evaluate the behavior of spiral polishing systems in restorative materials through optical coherence tomography (OCT). Performance of spiral polishers specific to resin and ceramics were evaluated. The surface roughness of restorative materials was measured, and images of the polishers were acquired by OCT and stereomicroscope.

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The available methods for veneer evaluation are limited to clinical and radiographic examinations, which may not allow the appropriate identification of failure. In this report, we demonstrate the use of optical coherence tomography (OCT) as a noninvasive diagnostic and follow-up method to evaluate gingival recovery and the adhesive interface in aesthetic oral rehabilitation involving periodontal plastic surgery and ceramic laminate veneers. OCT was efficient for evaluating both soft and hard tissues, as well as the quality of the adhesive interface.

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Optical coherence tomography (OCT) is one of the most important imaging modalities for biophotonics applications. In this work, an important step towards the clinical use of OCT in dental practice is reported, by following-up patients treated from periodontal disease (PD). A total of 147 vestibular dental sites from 14 patients diagnosed with PD were evaluated prior and after treatment, using a swept-source OCT and two periodontal probes (Florida probe and North Carolina) for comparison.

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There has been increasing interest on the development of clinically acceptable, more sensitive and specific methods for non-invasive diagnosis in Periodontics. In this pilot study, the performance of an Optical Coherence Tomography (OCT) system in imaging periodontal structures in humans was evaluated. Gingival sulcus depth measurements were obtained and compared with traditional probes.

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Article Synopsis
  • Periodontitis is a complex infectious disease that can lead to serious health issues, and this study investigates two different optical coherence tomography (OCT) systems at wavelengths of 930 nm and 1,325 nm for analyzing periodontal tissue in pig jaws.
  • The methods involved using five preserved porcine jaws to create detailed 2D and 3D images of the tooth and gum interface, allowing for measurement of important gingival structures and comparison with high-quality stereomicroscope images.
  • Results indicated that the 1,325 nm OCT system performed better for visualizing periodontal structures due to greater tissue penetration, while the 930 nm system provided useful information but was limited in visibility of some features.
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