1
|
Yan Y, Yan Q, Cai K, Wang Z, Li Q, Zhao K, Jian Y, Jia X. Silk fibroin microgrooved zirconia surfaces improve connective tissue sealing through mediating glycolysis of fibroblasts. Mater Today Bio 2024; 27:101158. [PMID: 39081464 PMCID: PMC11287005 DOI: 10.1016/j.mtbio.2024.101158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 07/12/2024] [Accepted: 07/12/2024] [Indexed: 08/02/2024] Open
Abstract
The use of zirconia has significantly enhanced the aesthetic outcomes of implant restorations. However, peri-implantitis remains a challenge to long-term functionality of implants. Unlike the perpendicularly arranged collagen fibers in periodontal tissue, those in peri-implant tissue lie parallel to the abutment surface and contain fewer fibroblasts, making them more prone to inflammation. Studies have shown that microgroove structures on implant abutments could improve surrounding soft tissue structure. However, creating precise microgrooves on zirconia without compromising its mechanical integrity is technically challenging. In this study, we applied inkjet printing, an additive manufacturing technique, to create stable silk fibroin microgroove (SFMG) coatings of various dimensions on zirconia substrates. SFMG significantly improved the hydrophilicity of zirconia and showed good physical and chemical stability. The SFMG with 90 μm interval and 10 μm depth was optimal in promoting the proliferation, alignment, and extracellular matrix production of human gingival fibroblasts (HGFs). Moreover, the in vitro results revealed that SFMG stimulated key glycolytic enzyme gene expression in HGFs via the PI3K-AKT-mTOR pathway. Additionally, the in vivo results of histological staining of peri-abutments soft tissue showed that SFMG promoted the vertical alignment of collagen fibers relative to the abutment surface, improving connective tissue sealing around the zirconia abutment. Our results indicated that SFMG on zirconia can enhance HGF proliferation, migration and collagen synthesis by regulating glycolysis though PI3K-AKT-mTor pathway, thereby improving connective tissue sealing.
Collapse
Affiliation(s)
- Yinuo Yan
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Qiqian Yan
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Kexin Cai
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Zhihan Wang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Qiulan Li
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Ke Zhao
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yutao Jian
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoshi Jia
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| |
Collapse
|
2
|
Guimarães LHDS, Pereira Neto ARL, de Oliveira TL, Kataoka MSDS, Pinheiro JDJV, Alves Júnior SDM. Platelet-rich fibrin stimulates the proliferation and expression of proteins related to survival, adhesion, and angiogenesis in gingival fibroblasts cultured on a titanium nano-hydroxyapatite-treated surface. J Oral Biosci 2024; 66:160-169. [PMID: 38048849 DOI: 10.1016/j.job.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/06/2023]
Abstract
OBJECTIVES This in vitro study aimed to evaluate the cell viability and expression of proteins related to angiogenesis, adhesion, and cell survival (vascular endothelial growth factor, paxillin, vinculin, fibronectin, and protein kinase B) in gingival fibroblasts that were cultured on titanium discs treated with or without nanohydroxyapatite and exposed to platelet-rich fibrin (PRF)-conditioned medium. METHODS To obtain the conditioned medium, the PRF membranes were prepared and incubated for 48 h in a culture medium without fetal bovine serum. Analyses were performed at 24 and 48 h for the cells cultured on machined-titanium discs or surfaces treated with nanohydroxyapatite in a control medium or PRF-conditioned medium, resulting in four experimental groups (CT-TI, CT-NANO, PRF-TI, and PRF-NANO). RESULTS A decrease in the viability of the gingival fibroblasts was not observed in any of the experimental groups. The PRF-NANO group showed significantly higher immunoexpression of paxillin and AKT at 24 and 48 h (p < 0.01). The same result was observed for vinculin expression at 24 h (p < 0.001). The expression of fibronectin at 48 h and VEGF at 24 and 48 h was significantly higher when the cells were exposed to the PRF-conditioned medium, regardless of the disc surface (p < 0.05). CONCLUSION Gingival fibroblasts cultured on a nanohydroxyapatite-treated surface and in a PRF-conditioned medium showed a greater expression of proteins modulating adhesion, angiogenesis, and cell survival. Our results may contribute to the understanding of the mechanisms related to peri-implant soft tissue sealing.
Collapse
Affiliation(s)
| | | | - Thaianna Lima de Oliveira
- Department of Periodontology, School of Dentistry, Federal University of Pará, Av. Augusto Correa 01, Belém, PA, Brazil.
| | - Maria Sueli da Silva Kataoka
- Department of Oral Pathology, School of Dentistry, Federal University of Pará, Av. Augusto Correa 01, Belém, PA, Brazil.
| | - João de Jesus Viana Pinheiro
- Department of Oral Pathology, School of Dentistry, Federal University of Pará, Av. Augusto Correa 01, Belém, PA, Brazil.
| | - Sérgio de Melo Alves Júnior
- Department of Oral Pathology, School of Dentistry, Federal University of Pará, Av. Augusto Correa 01, Belém, PA, Brazil.
| |
Collapse
|
3
|
Kučera J, Lofaj F, Nagyová-Krchova Z, Šurín Hudáková N, Vojtko M, Březina V. Stimulation of Osteogenic Activity of Autologous Teeth Hard Tissues as Bone Augmentation Material. BIOLOGY 2024; 13:40. [PMID: 38248471 PMCID: PMC10813725 DOI: 10.3390/biology13010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/08/2024] [Accepted: 01/08/2024] [Indexed: 01/23/2024]
Abstract
The issue of bone volume loss is playing an increasing role in bone tissue engineering. Research has focused on studying the preparation and use of different types of human or xenogenic materials and their osteogenic properties. An alternative source for this purpose could be autologous extracted teeth. The simple preparation protocol, minimal immune response, and rapid organizing of the newly formed bone with optimal mechanical properties predispose autologous hard teeth tissues (HTTs) as a promising material suitable in the indication of augmentation of maxillary and mandible defects, comparable to other high-end augmentation materials. The aim of this study was to experimentally evaluate the osteogenic potential of ground native autologous HTTs prepared by different demineralization procedures, aimed at potentiating the osteoinductive and osteoconductive properties of their organic components. The results indicate that the most effective preparation process for HTT stimulation is the application of Cleanser for 10 min followed by exposure to 0.6 N HCl for 5 min with a wash in phosphate-buffered saline solution.
Collapse
Affiliation(s)
- Jan Kučera
- Department of Dentistry and Maxillofacial Surgery, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, Tr. SNP 1, 040 01 Kosice, Slovakia
| | - František Lofaj
- Institute of Materials Research, Slovak Academy of Sciences, ÚMV SAV Košice, 040 01 Kosice, Slovakia; (F.L.); (M.V.)
| | - Zuzana Nagyová-Krchova
- Department of Stomatology and Maxillofacial Surgery, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, Tr. SNP 1, 040 11 Kosice, Slovakia;
| | - Natália Šurín Hudáková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia;
| | - Marek Vojtko
- Institute of Materials Research, Slovak Academy of Sciences, ÚMV SAV Košice, 040 01 Kosice, Slovakia; (F.L.); (M.V.)
| | - Vitěslav Březina
- Department of Stomatology, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic;
| |
Collapse
|
4
|
Enamel Matrix Derivatives for Periodontal Regeneration: Recent Developments and Future Perspectives. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:8661690. [PMID: 35449833 PMCID: PMC9017460 DOI: 10.1155/2022/8661690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/23/2022] [Indexed: 11/18/2022]
Abstract
In the era of the growing population, the demand for dental care is increasing at a fast pace for both older and younger people. One of the dental diseases that has attracted significant research is periodontitis. Periodontal therapy aims to regenerate tissues that are injured by periodontal disease. During recent decades, various pioneering strategies and products have been introduced for restoring or regeneration of periodontal deficiencies. One of these involves the regeneration of tissues under guidance using enamel matrix derivatives (EMDs) or combinations of these. EMDs are mainly comprised of amelogenins, which is one of the most common biological agents used in periodontics. Multiple studies have been reported regarding the role of EMD in periodontal tissue regeneration; however, the extensive mechanism remains elusive. The EMDs could promote periodontal regeneration mainly through inducing periodontal attachment during tooth formation. EMD mimics biological processes that occur during periodontal tissue growth. During root development, enamel matrix proteins are formed on the root surface by Hertwig's epithelial root sheath cells, initiating the process of cementogenesis. This article reviews the challenges and recent advances in preclinical and clinical applications of EMDs in periodontal regeneration. Moreover, we discuss the current evidence on the mechanisms of action of EMDs in the regeneration of periodontal tissues.
Collapse
|
5
|
The Applications of Enamel Matrix Derivative in Implant Dentistry: A Narrative Review. MATERIALS 2021; 14:ma14113045. [PMID: 34204976 PMCID: PMC8199880 DOI: 10.3390/ma14113045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 05/30/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022]
Abstract
Enamel matrix derivative (EMD) has been successfully used for periodontal regeneration in intrabony defects. Recently, its use for peri-implant bone regeneration has also been hypothesized. The aim of this paper is to review preclinical and clinical studies investigating the use of EMD in correspondence with titanium implants, alone or as an adjunct to other biomaterials. Clinical trials and case series with more than five cases were included. Seven in vitro studies evaluated the effect of EMD, placed on titanium surfaces: An increase in proliferation and viability of osteoblasts was observed in all but two studies. An increase in TGF-β1 and osteocalcin production, alkaline phosphatase activity, and angiogenesis was also reported. Nine animal studies investigated the use of EMD at implant placement or for bone regeneration of peri-implant bone defects, and some of them reported a significant increase in bone formation or bone-to-implant contact. In four of eleven clinical trials on humans, EMD was successfully used at implant placement. The other seven evaluated the use of EMD in protocols for the treatment of peri-implantitis. In conclusion, the results of EMD seem promising, but further randomized clinical trials are needed to evaluate its efficacy.
Collapse
|
6
|
Cold Atmospheric Plasma Promotes Regeneration-Associated Cell Functions of Murine Cementoblasts In Vitro. Int J Mol Sci 2021; 22:ijms22105280. [PMID: 34067898 PMCID: PMC8156616 DOI: 10.3390/ijms22105280] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/05/2021] [Accepted: 05/14/2021] [Indexed: 12/15/2022] Open
Abstract
The aim of the study was to examine the efficacy of cold atmospheric plasma (CAP) on the mineralization and cell proliferation of murine dental cementoblasts. Cells were treated with CAP and enamel matrix derivates (EMD). Gene expression of alkaline phosphatase (ALP), bone gamma-carboxyglutamate protein (BGLAP), periostin (POSTN), osteopontin (OPN), osterix (OSX), collagen type I alpha 1 chain (COL1A1), dentin matrix acidic phosphoprotein (DMP)1, RUNX family transcription factor (RUNX)2, and marker of proliferation Ki-67 (KI67) was quantified by real-time PCR. Protein expression was analyzed by immunocytochemistry and ELISA. ALP activity was determined by ALP assay. Von Kossa and alizarin red staining were used to display mineralization. Cell viability was analyzed by XTT assay, and morphological characterization was performed by DAPI/phalloidin staining. Cell migration was quantified with an established scratch assay. CAP and EMD upregulated both mRNA and protein synthesis of ALP, POSTN, and OPN. Additionally, DMP1 and COL1A1 were upregulated at both gene and protein levels. In addition to upregulated RUNX2 mRNA levels, treated cells mineralized more intensively. Moreover, CAP treatment resulted in an upregulation of KI67, higher cell viability, and improved cell migration. Our study shows that CAP appears to have stimulatory effects on regeneration-associated cell functions in cementoblasts.
Collapse
|
7
|
Dias-Netipanyj MF, Sopchenski L, Gradowski T, Elifio-Esposito S, Popat KC, Soares P. Crystallinity of TiO 2 nanotubes and its effects on fibroblast viability, adhesion, and proliferation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:94. [PMID: 33128627 DOI: 10.1007/s10856-020-06431-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
Titanium and titanium alloys are widely used as a biomaterial due to their mechanical strength, corrosion resistance, low elastic modulus, and excellent biocompatibility. TiO2 nanotubes have excellent bioactivity, stimulating the adhesion, proliferation of fibroblasts and adipose-derived stem cells, production of alkaline phosphatase by osteoblasts, platelets activation, growth of neural cells and adhesion, spreading, growth, and differentiation of rat bone marrow mesenchymal stem cells. In this study, we investigated the functionality of fibroblast on titania nanotube layers annealed at different temperatures. The titania nanotube layer was fabricated by potentiostatic anodization of titanium, then annealed at 300, 530, and 630 °C for 5 h. The resulting nanotube layer was characterized using SEM (Scanning Electron Microscopy), TF-XRD (Thin-film X-ray diffraction), and contact angle goniometry. Fibroblasts viability was determined by the CellTiter-Blue method and cytotoxicity by Lactate Dehydrogenase test, and the cell morphology was analyzed by scanning electron microscopy. Also, cell adherence, proliferation, and morphology were analyzed by fluorescence microscopy. The results indicate that the modification in nanotube crystallinity may provide a favorable surface fibroblast growth, especially on substrates annealed at 530 and 630 °C, indicating that these properties provide a favorable template for biomedical implants.
Collapse
Affiliation(s)
- Marcela Ferreira Dias-Netipanyj
- Graduate Program in Health Science, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA
| | - Luciane Sopchenski
- Department of Mechanical Engineering, Polytechnic School, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Thatyanne Gradowski
- Graduate Program in Health Science, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Selene Elifio-Esposito
- Graduate Program in Health Science, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Ketul C Popat
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, USA
| | - Paulo Soares
- Department of Mechanical Engineering, Polytechnic School, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil.
| |
Collapse
|
8
|
Efficacy of growth factors for the treatment of peri-implant diseases: a systematic review and meta-analysis. Clin Oral Investig 2020; 24:2141-2161. [PMID: 32418012 DOI: 10.1007/s00784-020-03240-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 02/11/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The aim of this study was to conduct a systematic review and meta-analysis on the efficacy of growth factors (GF) on clinical outcomes after treatment (surgical/non-surgical) of peri-implant diseases (peri-implant mucositis and peri-implantitis). MATERIALS AND METHODS A protocol was developed to answer the following focused question: Is there any difference for the use of GF for treatment of peri-implant diseases versus comparative GF treatment or without GF? Electronic database and manual searches were independently conducted to identify randomized controlled trials (RCTs). Publications were selected based on eligibility criteria and then assessed for risk-of-bias using the Cochrane Handbook. The primary outcome was probing depth (PD) and bleeding on probing (BOP) reduction along with changes in vertical defect depth (VDD). Changes in clinical attachment level, gingival recession, and plaque index, among others, were studied as secondary outcomes. Based on primary outcomes, random-effects meta-analysis was conducted. RESULTS A total of five RCTs were included. GF enhance the reduction of PD (standardized mean difference (SMD) = - 1.28; 95% confidence interval (CI) - 1.75, - 0.79; p = < 0.0001) and BOP (SMD = - 1.23; 95% CI - 1.70, - 0.76; p = < 0.0001) in the management of peri-implant mucositis. For the treatment of peri-implantitis, the use of GF yielded to significantly greater improvement in VDD (SMD = 0.68; 95% CI 0.22, 1.14; p = 0.004); however, there were no significant differences in terms of PD (SMD = 0.08; 95% CI - 1.08, 1.26; p = 0.887) and BOP (SMD = 0.211; 95% CI - 0.20, 0.63; p = 0.317). The overall risk of bias of the included studies was low to unclear. CONCLUSION The results of the present systematic review suggest that the addition of GF might enhance the outcomes in the treatment of peri-implant mucositis. However, there is a lack of evidence for supporting additional benefit of GF managing peri-implantitis. CLINICAL RELEVANCE Within the limitations of the current systematic review and based on the meta-analyses, (1) the addition of GF for the treatment peri-implant mucositis might be associated with better outcomes in terms of PD and BOP, and (2) an additional benefit of GF for the treatment peri-implantitis could not be determined on the basis of the selected evidence.
Collapse
|
9
|
de Souza VZ, Manfro R, Joly JC, Elias CN, Peruzzo DC, Napimoga MH, Martinez EF. Viability and collagen secretion by fibroblasts on titanium surfaces with different acid-etching protocols. Int J Implant Dent 2019; 5:41. [PMID: 31749041 PMCID: PMC6868076 DOI: 10.1186/s40729-019-0192-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/24/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND From the consolidation of surface treatments of dental implants and knowledge on the cellular mechanisms of osseointegration, studies have highlighted the importance of a connective tissue seal against the implant to prevent contamination from the oral environment and consequent biofilm formation. OBJECTIVE This in vitro study aimed to evaluate whether different titanium surface treatments using acid solutions promoted an increase in collagen secretion, proliferation, and viability of fibroblasts. MATERIAL AND METHODS Commercially pure grade-4 titanium disks (6 × 2 mm) were treated with different acid solutions (hydrochloric, nitric, and sulfuric) for 20 and 60 min, respectively, obtaining mean surface roughness of 0.1 to 0.15 μm and 0.5 to 0.7 μm. Human fibroblasts were seeded onto different surfaces and assessed after 24 h, 48 h, and 72 h for cell proliferation and viability using Trypan blue staining and MTT, respectively, as well as the secretion of type I collagen on to such surfaces using ELISA. Machined titanium surfaces were used as controls. Data were statistically analyzed using one-way ANOVA and Fisher's LSD test for multiple comparisons, adopting a significance level of 5%. RESULTS No significant difference was observed in cell proliferation for the different surfaces analyzed. Cell viability was significantly lower on the machined surface, after 48 h, when compared to the groups treated with acid for 20 or 60 min, which did not differ from each other. The expression of type I collagen was lowest on the acid-treated surfaces. CONCLUSION The results showed that the acid treatment proposed did not promote fibroblast proliferation and viability nor favor type I collagen synthesis.
Collapse
Affiliation(s)
| | - Rafael Manfro
- Division of Implantology, SOEBRÁS, Passo Fundo, RS, Brazil
| | - Júlio César Joly
- Division of Implantology, Faculdade São Leopoldo Mandic, Campinas, SP, Brazil
| | - Carlos Nelson Elias
- Materials Science Department, Instituto Militar de Engenharia, Rio de Janeiro, RJ, Brazil
| | | | | | - Elizabeth Ferreira Martinez
- Division of Oral Biology and Cell Biology, Faculdade São Leopoldo Mandic, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil.
| |
Collapse
|
10
|
Ikawa T, Akizuki T, Shujaa Addin A, Fukuba S, Stavropoulos A, Izumi Y. Enamel matrix derivative in liquid form as adjunct to natural bovine bone grafting at buccal bone dehiscence defects at implant sites: An experimental study in beagle dogs. Clin Oral Implants Res 2019; 30:989-996. [PMID: 31319440 DOI: 10.1111/clr.13512] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 06/04/2019] [Accepted: 07/03/2019] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To evaluate the effect of enamel matrix derivative in liquid form (EMD-liquid) as adjunct to grafting with natural bovine bone (NBB), on new bone formation and osseointegration in buccal dehiscence defects at dental implants. MATERIAL AND METHODS In six beagles, 3 months after extraction of the mandibular premolars and first molars. Three titanium implants (3.3 Ø × 8.0 mm) were inserted, and dehiscence-type defects (mesiodistal width 3 mm × 5 mm depth) were created on their buccal aspect. The defects were randomly assigned to one of the following three treatment groups: Group 1: NBB, Group 2: NBB/EMD-L, Group 3: Control. All sites were covered with a collagen membrane. Histomorphometric measurements were performed after 3 months of healing. RESULTS New bone area, bone-to-implant contact (BIC), and first BIC (fBIC) in the NBB and NBB/EMD-L groups were significantly greater than in the control group (p < .05). Further, f-BIC was at a significantly more coronal position in the NBB + EMD-liquid group (0.4 ± 0.1 mm) compared with the NBB group (1.2 ± 0.2 mm). CONCLUSIONS Natural bovine bone grafting enhances bone regeneration and osseointegration at implants with buccal bone dehiscences compared with no grafting, and adjunct use of EMD-liquid appears to further enhance bone formation and osseointegration.
Collapse
Affiliation(s)
- Takahiro Ikawa
- Department of Periodontology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Tatsuya Akizuki
- Department of Periodontology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ammar Shujaa Addin
- Department of Periodontology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shunsuke Fukuba
- Department of Periodontology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Andreas Stavropoulos
- Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan.,Oral Care Perio Center, Southern TOHOKU General Hospital, Southern TOHOKU Research Institute for Neuroscience, Fukushima, Japan
| |
Collapse
|
11
|
Wang Y, Qi H, Miron RJ, Zhang Y. Modulating macrophage polarization on titanium implant surface by poly(dopamine)-assisted immobilization of IL4. Clin Implant Dent Relat Res 2019; 21:977-986. [PMID: 31373150 DOI: 10.1111/cid.12819] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 05/14/2019] [Accepted: 06/29/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND In the past few decades, very little research has been carried out to modify implant surfaces to improve osteointegration through the regulation of immune cells. PURPOSE The aim of this study is to investigate whether the poly(dopamine) (pDA)-assisted immobilization of IL4 on titanium surfaces could modulate the inflammatory profile of macrophages in vitro and search for the possibility of enhancing implant integration in this way. MATERIAL AND METHODS The surface composition, topography, and roughness of SLA, SLA-pDA, and SLA-pDA-IL4 discs were examined by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). Then the releasing profile of the SLA-pDA-IL4 implants was recorded for 1 week and the bioactivity of released IL4 was investigated by ELISA. Then macrophage polarization was investigated via three methods including: (a) surface marker via immunofluorescence; (b) mRNA levels of M1 and M2 polarization markers via real-time PCR, and (c) cytokine release via ELISA. RESULTS SEM and EDS revealed that pDA and IL4 were coated successfully on SLA surfaces. The ELISA results showed that IL4 remained its bioactivity on SLA surface and were immobilized on the SLA surface. The immobilization of IL4 through pDA has no significant influence on the attachment, morphology, and proliferation of macrophages, while it increased the M2/M1 proportion in human macrophages revealed by immunofluorescence. The real-time PCR and ELISA results demonstrated that SLA-pDA-IL4 surface reduced the pro-inflammatory profile compared with SLA-pDA and SLA surfaces. CONCLUSIONS The SLA-pDA-IL4 surfaces described here is able to activate adherent macrophages into M2 phenotype and reduce the release of pro-inflammatory cytokines. Immobilization of IL4 via pDA is convenient and effective, thus providing an applicable way to control macrophage behavior upon implant insertion and is anticipated to accelerating further bone integration.
Collapse
Affiliation(s)
- Yulan Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Haoning Qi
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Richard J Miron
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Yufeng Zhang
- Department of Oral Implantology, School of Stomatology, Wuhan University, Wuhan, Hubei, China
| |
Collapse
|
12
|
Fujioka-Kobayashi M, Miron RJ, Lussi A, Gruber R, Ilie N, Price RB, Schmalz G. Effect of the degree of conversion of resin-based composites on cytotoxicity, cell attachment, and gene expression. Dent Mater 2019; 35:1173-1193. [DOI: 10.1016/j.dental.2019.05.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 05/14/2019] [Indexed: 01/13/2023]
|
13
|
Ingendoh-Tsakmakidis A, Nolte L, Winkel A, Meyer H, Koroleva A, Shpichka A, Ripken T, Heisterkamp A, Stiesch M. Time resolved 3D live-cell imaging on implants. PLoS One 2018; 13:e0205411. [PMID: 30304039 PMCID: PMC6179276 DOI: 10.1371/journal.pone.0205411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 09/25/2018] [Indexed: 11/18/2022] Open
Abstract
It is estimated that two million new dental implants are inserted worldwide each year. Innovative implant materials are developed in order to minimize the risk of peri-implant inflammations. The broad range of material testing is conducted using standard 2D, terminal, and invasive methods. The methods that have been applied are not sufficient to monitor the whole implant surface and temporal progress. Therefore, we built a 3D peri-implant model using a cylindrical implant colonized by human gingival fibroblasts. In order to monitor the cell response over time, a non-toxic LIVE/DEAD staining was established and applied to the new 3D model. Our LIVE/DEAD staining method in combination with the time resolved 3D visualization using Scanning Laser Optical Tomography (SLOT), allowed us to monitor the cell death path along the implant in the 3D peri-implant model. The differentiation of living and dead gingival fibroblasts in response to toxicity was effectively supported by the LIVE/DEAD staining. Furthermore, it was possible to visualize the whole cell-colonized implant in 3D and up to 63 hours. This new methodology offers the opportunity to record the long-term cell response on external stress factors, along the dental implant and thus to evaluate the performance of novel materials/surfaces.
Collapse
Affiliation(s)
- Alexandra Ingendoh-Tsakmakidis
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Hannover, Germany
- * E-mail:
| | - Lena Nolte
- Industrial and Biomedical Optics Department, Laser Zentrum Hannover e.V., Hannover, Germany
| | - Andreas Winkel
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Hannover, Germany
| | - Heiko Meyer
- Industrial and Biomedical Optics Department, Laser Zentrum Hannover e.V., Hannover, Germany
| | - Anastasia Koroleva
- Nanotechnology Department, Laser Zentrum Hannover e.V., Hannover, Germany
| | - Anastasia Shpichka
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Tammo Ripken
- Industrial and Biomedical Optics Department, Laser Zentrum Hannover e.V., Hannover, Germany
| | | | - Meike Stiesch
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Hannover, Germany
| |
Collapse
|
14
|
Wang X, Wang Y, Bosshardt DD, Miron RJ, Zhang Y. The role of macrophage polarization on fibroblast behavior-an in vitro investigation on titanium surfaces. Clin Oral Investig 2017; 22:847-857. [DOI: 10.1007/s00784-017-2161-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 06/23/2017] [Indexed: 01/13/2023]
|
15
|
Kobayashi E, Fujioka-Kobayashi M, Sculean A, Chappuis V, Buser D, Schaller B, Dőri F, Miron RJ. Effects of platelet rich plasma (PRP) on human gingival fibroblast, osteoblast and periodontal ligament cell behaviour. BMC Oral Health 2017; 17:91. [PMID: 28578703 PMCID: PMC5457736 DOI: 10.1186/s12903-017-0381-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 05/22/2017] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The use of platelet rich plasma (PRP, GLO) has been used as an adjunct to various regenerative dental procedures. The aim of the present study was to characterize the influence of PRP on human gingival fibroblasts, periodontal ligament (PDL) cells and osteoblast cell behavior in vitro. METHODS Human gingival fibroblasts, PDL cells and osteoblasts were cultured with conditioned media from PRP and investigated for cell migration, proliferation and collagen1 (COL1) immunostaining. Furthermore, gingival fibroblasts were tested for genes encoding TGF-β, PDGF and COL1a whereas PDL cells and osteoblasts were additionally tested for alkaline phosphatase (ALP) activity, alizarin red staining and mRNA levels of osteoblast differentiation markers including Runx2, COL1a2, ALP and osteocalcin (OCN). RESULTS It was first found that PRP significantly increased cell migration of all cells up to 4 fold. Furthermore, PRP increased cell proliferation at 3 and 5 days of gingival fibroblasts, and at 3 days for PDL cells, whereas no effect was observed on osteoblasts. Gingival fibroblasts cultured with PRP increased TGF-β, PDGF-B and COL1 mRNA levels at 7 days and further increased over 3-fold COL1 staining at 14 days. PDL cells cultured with PRP increased Runx2 mRNA levels but significantly down-regulated OCN mRNA levels at 3 days. No differences in COL1 staining or ALP staining were observed in PDL cells. Furthermore, PRP decreased mineralization of PDL cells at 14 days post seeding as assessed by alizarin red staining. In osteoblasts, PRP increased COL1 staining at 14 days, increased COL1 and ALP at 3 days, as well as increased ALP staining at 14 days. No significant differences were observed for alizarin red staining of osteoblasts following culture with PRP. CONCLUSIONS The results demonstrate that PRP promoted gingival fibroblast migration, proliferation and mRNA expression of pro-wound healing molecules. While PRP induced PDL cells and osteoblast migration and proliferation, it tended to have little to no effect on osteoblast differentiation. Therefore, while the effects seem to favor soft tissue regeneration, the additional effects of PRP on hard tissue formation of PDL cells and osteoblasts could not be fully confirmed in the present in vitro culture system.
Collapse
Affiliation(s)
- Eizaburo Kobayashi
- Department of Cranio-Maxillofacial Surgery, University Hospital, University of Bern, Bern, Switzerland
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata, Japan
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, University Hospital, University of Bern, Bern, Switzerland
- Department of Oral Surgery, Clinical Dentistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Vivianne Chappuis
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Daniel Buser
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Benoit Schaller
- Department of Cranio-Maxillofacial Surgery, University Hospital, University of Bern, Bern, Switzerland
| | - Forenc Dőri
- Department of Periodontology, Semmelweis University, Budapest, Hungary
| | - Richard J. Miron
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL USA
- Cell Therapy Institute, Center for Collaborative Research, Nova Southeastern University, Fort Lauderdale, FL USA
| |
Collapse
|
16
|
Wang X, Zhang Y, Choukroun J, Ghanaati S, Miron RJ. Behavior of Gingival Fibroblasts on Titanium Implant Surfaces in Combination with either Injectable-PRF or PRP. Int J Mol Sci 2017; 18:E331. [PMID: 28165420 PMCID: PMC5343867 DOI: 10.3390/ijms18020331] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 01/18/2017] [Accepted: 01/23/2017] [Indexed: 12/24/2022] Open
Abstract
Various strategies have been employed to speed tissue regeneration using bioactive molecules. Interestingly, platelet concentrates derived from a patient's own blood have been utilized as a regenerative strategy in recent years. In the present study, a novel liquid platelet formulation prepared without the use of anti-coagulants (injectable-platelet-rich fibrin, i-PRF) was compared to standard platelet-rich plasma (PRP) with gingival fibroblasts cultured on smooth and roughened titanium implant surfaces. Standard PRP and i-PRF (centrifuged at 700 rpm (60× g) for 3 min) were compared by assays for fibroblast biocompatibility, migration, adhesion, proliferation, as well as expression of platelet-derived growth factor (PDGF), transforming growth factor-β (TGF-β), collagen1 (COL1) and fibronectin (FN). The results demonstrate that i-PRF induced significantly higher cell migration, as well as higher messenger RNA (mRNA) levels of PDGF, TGF-β, collagen1 and fibronectin when compared to PRP. Furthermore, collagen1 synthesis was highest in the i-PRF group. These findings demonstrate that liquid platelet concentrates can be formulated without the use of anticoagulants and present much translational potential for future research. Future animal and clinical trials are now necessary to further investigate the potential of utilizing i-PRF for soft tissue regenerative protocols in combination with various biomaterials.
Collapse
Affiliation(s)
- Xuzhu Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
- Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
- Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
| | | | - Shahram Ghanaati
- FORM, Frankfurt Oral Regenerative Medicine, Clinic for Maxillofacial and Plastic Surgery, Johann Wolfgang Goethe University, 60596 Frankfurt Am Main, Germany.
| | - Richard J Miron
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA.
- Cell Therapy Institute, Collaborative Centre for Research, Nova Southeastern University, Fort Lauderdale, FL 33328, USA.
- Department of Periodontics and Oral Surgery, University of Ann Arbor, Ann Arbor, MI 48109, USA.
| |
Collapse
|