Dental hard tissue trauma is among the most common cases encountered in dental practice. Simple tooth fractures, which occur due to sharp blows, are widely seen in all age groups, especially in young adults. If in case of complex fractures the fractured tooth fragments are available to the dentist in a clean and hydrated state, reattachment of the tooth fragment is the most conservative and biological treatment option possible. Cases of enamel and dentin fractures not involving pulp are treated by reattaching the fragment with adhesives and composite resin. However, fractures involving the pulp require reinforcement by quartz fiber posts and resin luting cement. In cases of fractures extending subgingivally, an envelope flap helps to achieve the desired isolation and visibility. This article presents 2 case reports of reattachment of fractured tooth fragments. The first case showing a 4-year success was treated without raising a flap. The second case with a subgingival fracture was treated by raising a flap. Reattachment is the most economical, biologically acceptable and esthetic restorative option for dental trauma.
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http://dx.doi.org/10.4103/0972-0707.136519 | DOI Listing |
Sensors (Basel)
December 2024
National Key Laboratory of Laser Spatial Information, Harbin Institute of Technology, Harbin 150001, China.
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View Article and Find Full Text PDFPhotoacoustics
April 2024
Centre for Advanced Photonics and Process Analysis, Munster Technological University, Cork, T12 P928, Ireland.
We present an all-fiber-based laser gas analyzer (LGA) employing quartz-enhanced photoacoustic spectroscopy (QEPAS) and a side-polished fiber (SPF). The LGA comprises a custom quartz tuning fork (QTF) with 0.8 mm prong spacing, two acoustic micro-resonators (mR) located on either side of the prong spacing, and a single-mode fiber containing a 17 mm polished section passing through both mRs and QTF.
View Article and Find Full Text PDFPart Fibre Toxicol
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Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institute of Experimental and Clinical Research (IREC), Université catholique de Louvain (UCLouvain), Brussels, Belgium.
Langmuir
December 2024
Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal.
Immobilization of peptides onto nanofiber dressings holds significant potential for chronic wound treatment. However, it is necessary to understand the adsorptive capacity of the produced substrates and the binding affinity of the peptides to determine the interface success. This study aims at exploring for the first time the influence of electrospun poly(vinyl alcohol)-based nanofibers on the adsorption of a cyclic peptide, Tiger 17, and of a linear peptide, Pexiganan, using quartz crystal microbalance with dissipation monitoring (QCM-D).
View Article and Find Full Text PDFMaterials (Basel)
November 2024
Division of Restorative Dentistry, Periodontology and Prosthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, 8010 Graz, Austria.
This study evaluates the mechanical properties of materials used in the post-endodontic restoration of root-treated teeth and examines their performance under stress to provide insights for material selection in clinical applications. Particular attention is given to zirconium oxide, which demonstrates promising characteristics due to its esthetic color and favorable material properties, positioning it as a potential material for future use in post-endodontic treatments. Three materials-prefabricated quartz fiber-reinforced composite, milled zirconium oxide, and additively manufactured cobalt-chromium-were evaluated using compressive-deflection tests.
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