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FeedNavigator (EU) 05/09/2020 09:52
Background: In this study it is evaluated whether autogenous bone mixed with biphasic calcium phosphate (BCP) used in a maxillary sinus floor elevation (MSFE) leads to improved bone formation. Materials and methods: In five patients a unilateral MSFE was performed. Histological and histomorphometric analyses were performed on bone biopsies that were obtained 6 months after MSFE during dental implant surgery. Results: The average vital bone volume was 29.9% of the total biopsy (BV/TV, SD ± 10.1) of which 7.1% was osteoid (OV/BV, SD ± 4.8). The osteoid surface (OS/BS) covered 26.0% (SD ± 13.4) of the bone surface. The BS/TV covered 4.7 mm2/mm3 (SD ± 2.3). Compared with previous studies the analyses showed a difference for trabecular thickness.
FeedNavigator (EU) 04/24/2020 06:22
Despite many discussions about Ti versus Zr, Ti remains the golden standard for dental implants. With the extended use of implants, their rejection in peri-implantitis due to material properties is going to be an important part of oral health problems. Extended use of implants leading to a statistical increase in implant rejection associated with peri-implantitis raises concerns in selecting better implant materials. In this context, starting in the last decade, investigation and use of TiZr alloys as alternatives for Ti in oral dentistry became increasingly more viable. Based on existing new results for Ti16Zr (Roxolid) implants and Ti50Zr alloy behaviour in oral environments, this paper presents the trends of research concerning the elect.
FeedNavigator (EU) 03/28/2020 08:53
NRL-AgNP was developed bringing important properties of natural rubber as occlusive membrane with antimicrobial activity of silver nanoparticles. Biological aspects, such as cell viability, tissue reaction, and occlusive membrane performance of NRL-AgNP, are presented. In addition, in vivo degradation was investigated by Fourier Transform Infrared Spectroscopy (FTIR). The cell viability test was performed in mesenchymal stem cells of human deciduous dental pulp seeded with the new material. Tissue reaction was tested through subcutaneous implant of NRL-AgNP and compared to Polytetrafluoroethylene (PTFE) at the dorsum of rats. The performance of the NRL-AgNP as an occlusive membrane in Guided Bone Regeneration (GBR) was tested in full thickn.
FeedNavigator (EU) 03/18/2020 06:22
The aim of this study was to evaluate the cytotoxicity and mineralization potential of four calcium silicate-based cements on human gingiva-derived stem cells (GDSCs). The materials evaluated in the present study were ProRoot MTA (Dentsply Tulsa Dental Specialties), Biodentine (Septodont), Endocem Zr (Maruchi), and RetroMTA (BioMTA). Experimental disks of 6 mm in diameter and 3 mm in height were produced and placed in a 100% humidified atmosphere for 48 h to set. We evaluated the cytotoxic effects of the cements using methyl-thiazoldiphenyl-tetrazolium (MTT) and live/dead staining assays. We used a scratch wound healing assay to evaluate cell migratory ability. Mineralization potential was determined with an Alizarin red S (ARS) staining as.

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