Publications by authors named "Claudia C B O Mota"
In vivo assessment of periodontal structures and measurement of gingival sulcus with Optical Coherence Tomography: a pilot study.
J Biophotonics
June 2017
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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- 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.
Objectives: To analyze marginal integrity of resin composites dental restorations using optical coherence tomography (OCT).
Methods: Thirty extracted human premolars had occlusal cavities prepared and were randomly divided according to the restorative systems evaluated: Filtek P90™/P90 Adhesive System™, Filtek Z350™, and Filtek Z250™/Single Bond™ (3M/ESPE). The teeth were then stored in the dark for 24h in 0.
This study used optical coherence tomography (OCT) compared to scanning electron microscopy (SEM) and optical microscopy (OM) to evaluate qualitatively crack propagation and final fracture in restorative composite materials - Filtek Z250 and Filtek Z350 (3M ESPE) - with fiber reinforcement after cyclic loading. Samples were made using a split mold. Initially, 3-point bending tests were performed to determine the maximum force and tension at the fracture moment using samples without fiber reinforcement.
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