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2 results on '"Luana Lascu"'

1. APPLICATIONS OF 3D PRINTING TECHNIQUES FOR OCCLUSAL SPLINTS USED IN BRUXISM

Author

Adrian Marcel Popescu, Diana Elena Vlăduțu, Petre Costin Mărășescu, Marina Olimpia Amărăscu, Daniel Adrian Târtea, Sanda Mihaela Popescu, Luana Lascu, and Veronica Mercuț

Subjects
occlusal splint, 3d printing, rigid pmma, bruxism, Dentistry, RK1-715
Abstract

Currently, there are several digital technologies for the manufacture of occlusal appliances used in bruxism, which may involve subtractive technologies or additive technologies. The purpose of the study is the presentation of a digital workflow for occlusal splint through CAD-CAM with 3D printing. Material and method: The technology used for the manufacture of the occlusal splint included as stages: obtaining digital models, creating the digital design of the splint, 3D printing of the splint from a rigid PMMA material, adapting the splint on dental arch and in occlusion. Results: The digital technology for the occlusal appliance was used for a patient with sleep bruxism. The patient wore the occlusal splint for 9 weeks, with positive feedback. Conclusions: The digital technology proposed for occlusal splints in bruxism is reliable, and the rigid PMMA occlusal splints 3D printed are a viable alternative to conventional occlusal appliances in bruxism.

Published
2024
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2. OCT Application in Direct Dental Restorations Marginal Fit Evaluation

Author

Emma Cristina Drăghici, Oana Gingu, Monica Scrieciu, Alina Iren Moraru, Horia Octavian Manolea, Luana Lascu, Eugen Osiac, Veronica Mercut, Mihaela Jana Tuculina, and Sanda Mihaela Popescu

Subjects
stomatognathic diseases, stomatognathic system, Materials Science (miscellaneous), Process Chemistry and Technology, Materials Chemistry, General Engineering, General Chemistry, General Medicine, General Pharmacology, Toxicology and Pharmaceutics, General Biochemistry, Genetics and Molecular Biology
Abstract

To apply OCT analysis in secondary caries and marginal gap detection and evaluation for direct dental restorations is the aim of the paper. 15 extracted teeth with pre-existing direct dental restorations were analysed through OCT to evaluate marginal fit of restorations. The OCT system used wasmanufactured by Thorlabs (OCS1300SS), powered by a swept laser source with central 1310 nm wavelength, 100 nm spectral bandwidth and 12 mW average power. The occlusal area of the teeth was sampled pictured in 10 mm width, 10 mm distance and 3 mm depth. OCT was used also to evaluate in micrometers (mm) the maximum marginal gap between dental filling and tooth. OCT analysis of the marginal fit of direct dental restorations after A scan examination revealed that amalgam had the smallest marginal gap (width 210 mm, depth 90 mm), followed by glass ionomer (width 350 mm, depth 280 mm), and composite (width 520 mm, depth 300 mm). OCT analysis revealed that for marginal fit evaluation amalgam had best performance, followed by glass ionomer, and ultimately, by resin composite. OCT could be used as an alternative method to appreciate the marginal fit of direct dental restorations giving details that could help dentists to take best treatment decision, whether to repair or to replace the restorations.

Published
2019

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