scholarly journals Dental Pulp Stem Cells on Implant Surface: An In Vitro Study

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Luigi Laino ◽  
Marcella La Noce ◽  
Luca Fiorillo ◽  
Gabriele Cervino ◽  
Ludovica Nucci ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Implant ◽  
Dental Pulp ◽  
In Vitro Study ◽  
Implant Surface ◽  
Oral Surgical Procedures ◽  
Excellent Starting Point ◽  
Starting Point ◽  
Dental Implant Surface

In the field of biology and medicine, one hears often about stem cells and their potential. The dental implant new surfaces, subjected to specific treatments, perform better and allow for quicker healing times and better clinical performance. The purpose of this study is to evaluate from a biological point of view the interaction and cytotoxicity between stem cells derived from dental pulp (DPSCs) and titanium surfaces. Through the creation of complex cells/implant, this study is aimed at analyzing the cytotoxicity of dental implant surfaces (Myth (Maipek Manufacturer Industrial Care, Naples, Italy)) and the adhesion capacity of cells on them and at considering the essential factors for implant healing such as osteoinduction and vasculogenesis. These parameters are pointed out through histology (3D cell culture), immunofluorescence, proliferation assays, scanning electron microscopy, and PCR investigations. The results of the dental implant surface and its interaction with the DPSCs are encouraging, obtaining results increasing the mineralization of the tissues. The knowledge of this type of interaction, highlighting its chemical and biological features, is certainly also an excellent starting point for the development of even more performing surfaces for having better healing in the oral surgical procedures related to dental implant positioning.

scholarly journals Decontamination of Dental Implant Surfaces by the Er:YAG Laser Beam: A Comparative in Vitro Study of Various Protocols

2018 ◽  
Vol 6 (4) ◽  
pp. 66 ◽  
Author(s):  
Rima Nejem Wakim ◽  
Melanie Namour ◽  
Hoang Nguyen ◽  
Andre Peremans ◽  
Toni Zeinoun ◽  
...  
Keyword(s):  
Dental Implant ◽  
Er:Yag Laser ◽  
In Vitro Study ◽  
Low Energy ◽  
Vitro Study ◽  
Water Spray ◽  
Implant Surface ◽  
Dental Implant Surface ◽  
Irradiation Energy

Oral rehabilitation with dental implants has revolutionized the field of dentistry and has been proven to be an effective procedure. However, the incidence of peri-implantitis has become an emerging concern. The efficacy of the decontamination of the implant surface, by means of lasers, is still controversial. Previous studies have revealed a reduction in osteoblast adhesion to carbon-contaminated implant surfaces. This in-vitro study aimed to evaluate the decontamination of failed implants by assessing the carbon proportion, after irradiation by low-energy erbium yttrium-aluminum-garnet laser (Er:YAG) (Fotona; 2940 nm, Ljubljana, Slovenia) for a single and for multiple passages, until getting a surface, free of organic matters; to find the appropriate procedure for dental-implant surface-decontamination. Ninety implants were used. Thirty sterile implants were kept as a negative control. Thirty failed implants were irradiated by the Er:YAG laser, for a single passage, and the other thirty, for multiple passages. The parameters used in our experiments were an irradiation energy of 50 mJ, frequency of 30 Hz, and an energy density of 3.76 J/cm2. A sapphire tip, with a length of 8 mm, was used with concomitant water spray irrigation, under air 6 and water spray 4. Super short pulse mode (SSP) was of 50 μs; irradiation speed being 2 mm/s. We used energy-dispersive X-ray spectroscopy (EDX) to evaluate the carbon proportion on the surfaces of the sterile implants, the contaminated, and the lased implants, with one (LX1) and with three passages (LX3). Statistical analysis was performed by ANOVA. Results showed mean difference between the three groups (contaminated, LX1, and LX3) with p < 0.0001, as between LX1 and Group A (p < 0.0001), while the difference between LX3 and the control group was not statistically significant. The decontamination of the implant surfaces with a low-energy Er:YAG laser with three passages, appeared to be an encouraging approach.

Comparing the osteogenic potential of schneiderian membrane and dental pulp mesenchymal stem cells: an in vitro study

2021 ◽  
Author(s):  
Antoine Berbéri ◽  
Joseph Sabbagh ◽  
Rita Bou Assaf ◽  
Michella Ghassibe-Sabbagh ◽  
Fatima Al-Nemer ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Dental Pulp ◽  
In Vitro Study ◽  
Vitro Study ◽  
Osteogenic Potential ◽  
Schneiderian Membrane

scholarly journals Similar Features, Different Behaviors: A Comparative In Vitro Study of the Adipogenic Potential of Stem Cells from Human Follicle, Dental Pulp, and Periodontal Ligament

2021 ◽  
Vol 11 (8) ◽  
pp. 738
Author(s):  
Melissa D. Mercado-Rubio ◽  
Erick Pérez-Argueta ◽  
Alejandro Zepeda-Pedreguera ◽  
Fernando J. Aguilar-Ayala ◽  
Ricardo Peñaloza-Cuevas ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
Periodontal Ligament ◽  
Adipogenic Differentiation ◽  
In Vitro Study ◽  
Mrna Levels ◽  
Dental Tissue ◽  
Periodontal Ligament Stem Cells ◽  
Differentiation Potential

Dental tissue-derived mesenchymal stem cells (DT-MSCs) are a promising resource for tissue regeneration due to their multilineage potential. Despite accumulating data regarding the biology and differentiation potential of DT-MSCs, few studies have investigated their adipogenic capacity. In this study, we have investigated the mesenchymal features of dental pulp stem cells (DPSCs), as well as the in vitro effects of different adipogenic media on these cells, and compared them to those of periodontal ligament stem cells (PLSCs) and dental follicle stem cells (DFSCs). DFSC, PLSCs, and DPSCs exhibit similar morphology and proliferation capacity, but they differ in their self-renewal ability and expression of stemness markers (e.g OCT4 and c-MYC). Interestingly, DFSCs and PLSCs exhibited more lipid accumulation than DPSCs when induced to adipogenic differentiation. In addition, the mRNA levels of adipogenic markers (PPAR, LPL, and ADIPOQ) were significantly higher in DFSCs and PLSCs than in DPSCs, which could be related to the differences in the adipogenic commitment in those cells. These findings reveal that the adipogenic capacity differ among DT-MSCs, features that might be advantageous to increasing our understanding about the developmental origins and regulation of adipogenic commitment.

An In Vitro Study of the Effects of Crocin on the Modulation of DSPP, VEGF-A, HLA-G5, STAT3 and CD200 Expression in Human Dental Pulp Stem Cells

2021 ◽  
Author(s):  
Mansoore Saharkhiz ◽  
Fariba Emadian Razavi ◽  
Seyed Mohammad Riahi ◽  
Malaksima Ayadilord ◽  
Zeinab Rostami ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
In Vitro Study ◽  
Dental Pulp Stem Cells ◽  
Vitro Study ◽  
Human Dental Pulp

scholarly journals Preparation of Bioactive Titanium Surfaces via Fluoride and Fibronectin Retention

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Carlos Nelson Elias ◽  
Patricia Abdo Gravina ◽  
Costa e Silva Filho ◽  
Pedro Augusto de Paula Nascente
Keyword(s):  
Dental Implants ◽  
Dental Implant ◽  
Osteoblastic Cells ◽  
Acid Etching ◽  
Implant Surface ◽  
Force Microscopy ◽  
Dental Implant Surface ◽  
Before And After ◽  
Titanium Surfaces

Statement of Problem. The chemical or topographic modification of the dental implant surface can affect bone healing, promote accelerated osteogenesis, and increase bone-implant contact and bonding strength.Objective. In this work, the effects of dental implant surface treatment and fibronectin adsorption on the adhesion of osteoblasts were analyzed.Materials and Methods. Two titanium dental implants (Porous-acid etching and PorousNano-acid etching followed by fluoride ion modification) were characterized by high-resolution scanning electron microscopy, atomic force microscopy, and X-ray diffraction before and after the incorporation of human plasma fibronectin (FN). The objective was to investigate the biofunctionalization of these surfaces and examine their effects on the interaction with osteoblastic cells.Results. The evaluation techniques used showed that the Porous and PorousNano implants have similar microstructural characteristics. Spectrophotometry demonstrated similar levels of fibronectin adsorption on both surfaces (80%). The association indexes of osteoblastic cells in FN-treated samples were significantly higher than those in samples without FN. The radioactivity values associated with the same samples, expressed as counts per minute (cpm), suggested that FN incorporation is an important determinant of thein vitrocytocompatibility of the surfaces.Conclusion. The preparation of bioactive titanium surfaces via fluoride and FN retention proved to be a useful treatment to optimize and to accelerate the osseointegration process for dental implants.

scholarly journals Human Periodontal Ligament Stem Cells Response to Titanium Implant Surface: Extracellular Matrix Deposition

Biology ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 931
Author(s):  
Guya Diletta Marconi ◽  
Luigia Fonticoli ◽  
Ylenia Della Della Rocca ◽  
Thangavelu Soundara Rajan ◽  
Adriano Piattelli ◽  
...  
Keyword(s):  
Stem Cells ◽  
Extracellular Matrix ◽  
Dental Implants ◽  
Dental Implant ◽  
Periodontal Ligament ◽  
Implant Surface ◽  
Periodontal Ligament Stem Cells ◽  
Matrix Deposition ◽  
Dental Implant Surface ◽  
The Impact

The major challenge for dentistry is to provide the patient an oral rehabilitation to maintain healthy bone conditions in order to reduce the time for loading protocols. Advancement in implant surface design is necessary to favour and promote the osseointegration process. The surface features of titanium dental implant can promote a relevant influence on the morphology and differentiation ability of mesenchymal stem cells, induction of the osteoblastic genes expression and the release of extracellular matrix (ECM) components. The present study aimed at evaluating the in vitro effects of two different dental implants with titanium surfaces, TEST and CTRL, to culture the human periodontal ligament stem cells (hPDLSCs). Expression of ECM components such as Vimentin, Fibronectin, N-cadherin, Laminin, Focal Adhesion Kinase (FAK) and Integrin beta-1 (ITGB1), and the osteogenic related markers, as runt related transcription factor 2 (RUNX2) and alkaline phosphatase (ALP), were investigated. Human PDLSCs cultured on the TEST implant surface demonstrated a better cell adhesion capability as observed by Scanning Electron Microscopy (SEM) and immunofluorescence analysis. Moreover, immunofluorescence and Western blot experiments showed an over expression of Fibronectin, Laminin, N-cadherin and RUNX2 in hPDLSCs seeded on TEST implant surface. The gene expression study by RT-PCR validated the results obtained in protein assays and exhibited the expression of RUNX2, ALP, Vimentin (VIM), Fibronectin (FN1), N-cadherin (CDH2), Laminin (LAMB1), FAK and ITGB1 in hPDLSCs seeded on TEST surface compared to the CTRL dental implant surface. Understanding the mechanisms of ECM components release and its regulation are essential for developing novel strategies in tissue engineering and regenerative medicine. Our results demonstrated that the impact of treated surfaces of titanium dental implants might increase and accelerate the ECM apposition and provide the starting point to initiate the osseointegration process.

scholarly journals Effect of Vitamins D and E on the Proliferation, Viability, and Differentiation of Human Dental Pulp Stem Cells: An In Vitro Study

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Lina M. Escobar ◽  
Zita Bendahan ◽  
Andrea Bayona ◽  
Jaime E. Castellanos ◽  
María-Clara González
Keyword(s):  
Stem Cells ◽  
Cell Proliferation ◽  
Dental Pulp ◽  
Morphological Changes ◽  
In Vitro Study ◽  
Osteoblastic Differentiation ◽  
Dental Pulp Stem Cells ◽  
Alizarin Red ◽  
Human Dental Pulp

Introduction. The aim of the present study was to determine the effects of vitamins D and E on the proliferation, morphology, and differentiation of human dental pulp stem cells (hDPSCs). Methods. In this in vitro experimental study, hDPSCs were isolated, characterized, and treated with vitamins D and E, individually and in combination, utilizing different doses and treatment periods. Changes in morphology and cell proliferation were evaluated using light microscopy and the resazurin assay, respectively. Osteoblast differentiation was evaluated with alizarin red S staining and expression of RUNX2, Osterix, and Osteocalcin genes using real-time RT-PCR. Results. Compared with untreated cells, the number of cells significantly reduced following treatment with vitamin D (49%), vitamin E (35%), and vitamins D + E (61%) after 144 h. Compared with cell cultures treated with individual vitamins, cells treated with vitamins D + E demonstrated decreased cell confluence, with more extensive and flatter cytoplasm that initiated the formation of a significantly large number of calcified nodules after 7 days of treatment. After 14 days, treatment with vitamins D, E, and D + E increased the transcription of RUNX2, Osterix, and Osteocalcin genes. Conclusions. Vitamins D and E induced osteoblastic differentiation of hDPSCs, as evidenced by the decrease in cell proliferation, morphological changes, and the formation of calcified nodules, increasing the expression of differentiation genes. Concurrent treatment with vitamins D + E induces a synergistic effect in differentiation toward an osteoblastic lineage.

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