Efficacy of Collagen-Based Membranes in Alveolar Bone Augmentation

Choi, Na-Rae; Sándor, George K.B.; Kim, Yong-Deok

doi:10.3390/app8112048

Cited by 5 publications

(4 citation statements)

References 22 publications

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“…The in vivo testing shows that the defects that were covered with a membrane had a larger number of blood vessels ( Figure 6) and osteocytes ( Figures 6 and 7, Table 5) than the defects without a membrane. Similar results were obtained by other researchers who observed that the use of resorbable membrane improves bone repair (44,45).…”

Section: Discussionsupporting

confidence: 91%

Properties of a bovine collagen type I membrane for guided bone regeneration applications

et al. 2021

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Dental implant treatment requires an available bone volume in the implantation site to ensure the implant’s mechanical stability. When the bone volume is insufficient, one must resort to surgical means such as guided bone regeneration (GBR). In GBR surgery, bone grafts and membranes are used. The objective of this work is to manufacture and characterize the in vitro and in vivo properties of resorbable collagen type I membranes (Green Membrane®) for GBR. Membrane surface morphology was characterized by SEM and roughness was measured using an interferometric noncontact 3D system. In vivo skin sensitization and toxicity tests have been performed on Wistar rats. Bone defects were prepared in 24 adult male rats, filled with biomaterials (Blue Bone® and Bio Oss®) and covered with collagen membranes to maintain the mechanical stability of the site for bone regeneration. The incisions were closed with simple stitches; and 60 days after the surgery, the animals were euthanized. Results showed that the analyzed membrane was homogeneous, with collagen fiber webs and open pores. It had no sign of cytotoxicity and the cells at the insertion site showed no bone morphological changes. There was no tissue reaction and no statistical difference between Blue Bone® and Bio Oss® groups. The proposed membrane has no cytotoxicity and displays a biocompatibility profile that makes it suitable for GBR.

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Section: Discussionsupporting

confidence: 91%

Properties of a bovine collagen type I membrane for guided bone regeneration applications

et al. 2021

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“…where a varies between 1.0 and 2.0 depending on factors such as the shape, size, surface smoothness, and concentration of the ER particles [53,58]. As shown in figure 9, the results for the 10 wt% PNMA-based ER fluid were mostly consistent with the conduction model, with a = 1.5 [59].…”

Section: Resultssupporting

confidence: 51%

Monodisperse semiconducting poly(N-methylaniline) microspheres and their electrorheological response

Dong¹,

Kim²,

Choi³

2021

Smart Mater. Struct.

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Monodisperse semiconducting poly(N-methylaniline) (PNMA) microspheres with a suitable electrical conductivity were fabricated using a chemical oxidation process and employed in an electrorheological (ER) suspension. Morphological image of the synthesized PNMA microsphere was assessed via scanning electron microscope and transmission electron microscope. Its chemical composition and thermal behavior were determined using Fourier-transform infrared and thermal gravimetric analysis, respectively. Chain-like structure formation under an input electric field in ER fluid containing silicone oil and 10 wt% PNMA microspheres was observed directly with optical microscopy. Viscoelastic characteristics of the ER fluid under an input electric field were evaluated with a rotational rheometer. Yield stress with a power exponent of 1.5 was observed, along with typical solid-like property under electric field. Dielectric behavior of the ER suspension measured was also found to be closely associated with its ER behavior.

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“…Bone proteins are present in the extracellular matrix and mostly consist of collagenous proteins (~90%) [142]. Bone collagens are extremely stable due to their cross-linked structure and the protection of the bone matrix [143]. Thus, Buckley et al determined a peptide with 33 amino acids derived from collagen, which could be used to distinguish between sheep and goat bone because this peptide differs between the two species at two positions [144].…”

Section: Bone Proteomementioning

confidence: 99%

Proteomics in Forensic Analysis: Applications for Human Samples

et al. 2021

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Proteomics, the large-scale study of all proteins of an organism or system, is a powerful tool for studying biological systems. It can provide a holistic view of the physiological and biochemical states of given samples through identification and quantification of large numbers of peptides and proteins. In forensic science, proteomics can be used as a confirmatory and orthogonal technique for well-built genomic analyses. Proteomics is highly valuable in cases where nucleic acids are absent or degraded, such as hair and bone samples. It can be used to identify body fluids, ethnic group, gender, individual, and estimate post-mortem interval using bone, muscle, and decomposition fluid samples. Compared to genomic analysis, proteomics can provide a better global picture of a sample. It has been used in forensic science for a wide range of sample types and applications. In this review, we briefly introduce proteomic methods, including sample preparation techniques, data acquisition using liquid chromatography-tandem mass spectrometry, and data analysis using database search, spectral library search, and de novo sequencing. We also summarize recent applications in the past decade of proteomics in forensic science with a special focus on human samples, including hair, bone, body fluids, fingernail, muscle, brain, and fingermark, and address the challenges, considerations, and future developments of forensic proteomics.

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Efficacy of Collagen-Based Membranes in Alveolar Bone Augmentation

Cited by 5 publications

References 22 publications

Properties of a bovine collagen type I membrane for guided bone regeneration applications

Properties of a bovine collagen type I membrane for guided bone regeneration applications

Monodisperse semiconducting poly(N-methylaniline) microspheres and their electrorheological response

Proteomics in Forensic Analysis: Applications for Human Samples

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