期刊
APPLIED SCIENCES-BASEL
卷 12, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/app12062956
关键词
boron-doped diamond; brushite; hydroxyapatite; obturation; reactive oxygen species
类别
资金
- Forschungsgemeinschaft Dental e.V. [01/2020]
- Dr. Rolf M. Schwiete Stiftung [2020-037]
This study investigates the use of boron-doped diamond electrodes for root canal obturation. The research shows that boron-doped diamond electrodes can successfully precipitate brushite within a clinically applicable timeframe, but achieving tight sealing of the canal system based on brushite is not possible.
Featured Application Use of boron-doped diamond electrodes for root canal obturation. Achieving adequate disinfection and preventing reinfection is the major goal in endodontic treatment. Variation in canal morphology and open porosity of dentine prevents achieving complete disinfection. Questionable biocompatibility of materials as well as a lack of sealing ability questions the usefulness of current obturation methods. With a novel disinfection approach based on the use of boron-doped diamond (BDD) electrodes having shown promising results it was the goal of this series of experiments to investigate the possibility of BDD-mediated in situ forming of a biocompatible obturation material. A combination of calcium phosphate and maleic acid was used as precursor solution while Ion Chromatography Mass Spectrometry (IC-MS), Raman spectroscopy (RAMAN), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), dye penetration and micro-computed tomography (mu CT) were applied for characterizing the precipitate. It was possible to achieve a BDD-mediated precipitation of brushite in a clinically applicable timeframe. However, tight sealing of the canal system based on brushite could not be achieved.
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