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Early Bone Healing on Hydroxyapatite-Coated and Chemically-Modified Hydrophilic Implant Surfaces in an Ovine Model. Int J Mol Sci 2021; 22:ijms22179361. [PMID: 34502270 PMCID: PMC8430562 DOI: 10.3390/ijms22179361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/21/2021] [Accepted: 08/21/2021] [Indexed: 11/17/2022] Open
Abstract
Implant topography affects early peri-implant bone healing by changing the osteoconduction rate in the surrounding biological environment. Implant surfaces have been designed to promote faster and stronger bone formation for rapid and stable prosthesis loading. Early peri-implant bone healing has been observed with a sandblasted, acid-etched implant that was chemically modified to be hydrophilic (cmSLA). The present study investigates whether early peri-implant bone healing extends to a rough surface implant with a high crystalline hydroxyapatite surface (TSV MP-1 HA). Three implants were randomly placed in porous trabecular bone within both medial femoral condyles of 10 sheep. Early peri-implant bone stability was measured at 3- and 6-weeks healing time following implant insertion. Results indicated a similar implant stability quotient between the implants at insertion and over time. The significant increase over time of reverse torque values with respect to insertion torque (p < 0.001) did not differ between the implants. However, the bone-to-implant contact of TSV MP-1 HA was significantly higher than that of cmSLA implants at 6 weeks (p < 0.01). These data validate previous findings of a hydrophilic implant surface and extend the observation of early osseointegration to a rough surface implant in porous trabecular bone.
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Lee J, Yoo JM, Amara HB, Lee YM, Lim YJ, Kim H, Koo KT. Bone healing dynamics associated with 3 implants with different surfaces: histologic and histomorphometric analyses in dogs. J Periodontal Implant Sci 2019; 49:25-38. [PMID: 30847254 PMCID: PMC6399089 DOI: 10.5051/jpis.2019.49.1.25] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 01/30/2019] [Indexed: 11/08/2022] Open
Abstract
Purpose This study evaluated differences in bone healing and remodeling among 3 implants with different surfaces: sandblasting and large-grit acid etching (SLA; IS-III Active®), SLA with hydroxyapatite nanocoating (IS-III Bioactive®), and SLA stored in sodium chloride solution (SLActive®). Methods The mandibular second, third, and fourth premolars of 9 dogs were extracted. After 4 weeks, 9 dogs with edentulous alveolar ridges underwent surgical placement of 3 implants bilaterally and were allowed to heal for 2, 4, or 12 weeks. Histologic and histomorphometric analyses were performed on 54 stained slides based on the following parameters: vertical marginal bone loss at the buccal and lingual aspects of the implant (b-MBL and l-MBL, respectively), mineralized bone-to-implant contact (mBIC), osteoid-to-implant contact (OIC), total bone-to-implant contact (tBIC), mineralized bone area fraction occupied (mBAFO), osteoid area fraction occupied (OAFO), and total bone area fraction occupied (tBAFO) in the threads of the region of interest. Two-way analysis of variance (3 types of implant surface×3 healing time periods) and additional analyses for simple effects were performed. Results Statistically significant differences were observed across the implant surfaces for OIC, mBIC, tBIC, OAFO, and tBAFO. Statistically significant differences were observed over time for l-MBL, mBIC, tBIC, mBAFO, and tBAFO. In addition, an interaction effect between the implant surface and the healing time period was observed for mBIC, tBIC, and mBAFO. Conclusions Our results suggest that implant surface wettability facilitates bone healing dynamics, which could be attributed to the improvement of early osseointegration. In addition, osteoblasts might become more activated with the use of HA-coated surface implants than with hydrophobic surface implants in the remodeling phase.
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Affiliation(s)
- Jungwon Lee
- Department of Periodontics, One-Stop Specialty Center, Seoul National University Dental Hospital, Seoul, Korea
| | - Jung Min Yoo
- Department of Periodontology, Seoul National University School of Dentistry, Seoul, Korea
| | - Heithem Ben Amara
- Department of Periodontology, Seoul National University School of Dentistry, Seoul, Korea
| | - Yong-Moo Lee
- Department of Periodontology, Seoul National University School of Dentistry, Seoul, Korea.,Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
| | - Young-Jun Lim
- Department of Prosthodontics, Seoul National University School of Dentistry, Seoul, Korea.,Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
| | - Haeyoung Kim
- Department of Health Policy and Management, Korea University College of Health Science, Seoul, Korea
| | - Ki-Tae Koo
- Department of Periodontology, Seoul National University School of Dentistry, Seoul, Korea.,Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
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Behavior of Human Osteoblast Cells Cultured on Titanium Discs in Relation to Surface Roughness and Presence of Melatonin. Int J Mol Sci 2017; 18:ijms18040823. [PMID: 28406458 PMCID: PMC5412407 DOI: 10.3390/ijms18040823] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 04/04/2017] [Accepted: 04/08/2017] [Indexed: 11/17/2022] Open
Abstract
The aim of this work was to observe the behavior of osteoblast cells cultured in vitro on titanium discs in relation to disc surface roughness and the addition of melatonin to the culture medium. MG63 osteoblast cells were cultivated on 120 Grade 5 Ti divided into three groups: Group E, treated with dual acid etch; Group EP, treated with dual acid etch and calcium phosphate; and Group M, machined. Surface roughness was examined under a laser scanning confocal microscope (CLSM) and scanning electron microscopy (SEM). The proliferation and morphology of cells were determined under fluorescence microscopy and SEM. Messenger ribonucleic acid (mRNA) of different genes related to osteoblastic differentiation was quantified by means of real-time quantitative polymerase chain reaction (RT-PCR) assay. The greatest surface roughness was found in Group EP (Ra 0.354 µm), followed by Group E (Ra 0.266 µm), and Group M (Ra 0.131 µm), with statistically significant differences between the groups (p < 0.001). In the presence of melatonin a trend to a higher cell proliferation was observed in all groups although significant differences were only found in Group M (p = 0.0079). Among the genes studied, a significant increase in phosphate-regulating neutral endopeptidase, X-linked (PHEX) expression was observed in cells cultured on EP discs. The addition of melatonin increased osteoblast cell proliferation and differentiation, and may favor the osseointegration of dental implants.
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Menini M, Dellepiane E, Baldi D, Longobardi MG, Pera P, Izzotti A. Microarray expression in peri-implant tissue next to different titanium implant surfaces predicts clinical outcomes: a split-mouth study. Clin Oral Implants Res 2016; 28:e121-e134. [PMID: 27492799 DOI: 10.1111/clr.12943] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVES This split-mouth study evaluated miRNA expression of tissues around implants with different surface treatments. MATERIAL AND METHODS Each patient of the sample (five men and five women) received two implants (one control and one test) into an edentulous quadrant to support fixed partial dentures. The control implants (Osseotite) had a dual acid-etched (DAE) surface in the apical portion and a machined coronal part, test implants (Full Osseotite, FOSS) were completely DAE. Machined healing abutments were placed on control implants and DAE abutments on test ones. All implants were assigned codes for blinding. Standardized periapical radiographs were taken at baseline, 2 and 6 months, and 1 year after surgery. Plaque index (PI), bleeding on probing (BOP), and probing depth (PD) were recorded at 3 and 6 weeks, and 2, 3, 6, and 12 months post-implant placement. After 3 months, a mini-invasive sample of soft tissue was collected from seven patients (four women and three men) for miRNA microarray analysis. RESULTS Control implants showed greater bone resorption (BR) and lower PI: this was not statistically significant. No statistically significant differences in BOP and PD appeared. miRNA modulated by implant surfaces as well as by other clinical conditions has been identified. miRNA microarray analysis revealed that: (i) implant sites with low PI and absence of BOP had a miRNA expression profile similar to those with plaque and absence of BOP; sites with high PI and high BOP had a different profile. (ii) Implant sites with BOP presented similar profiles independently from implant surface. (iii) Implant sites with high PI and normal BR differed from others for miRNA expression profile. (iv) Implant sites with normal BR despite high BOP differed from others. This profile resembled that of FOSS implants. (v) Implant surface affected BR; groups having similar BR clusterized differently according to the implant type. CONCLUSIONS DAE surfaces induced lower BR and more plaque accumulation: This did not affect the health of soft tissues. miRNA analysis indicated that soft tissue inflammation is more related to gene expression profile than to plaque or to implant surface. Specific miRNA profile can protect implant sites from bleeding and BR irrespective of plaque accumulation.
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Affiliation(s)
- M Menini
- Division of Implant Prosthodontics, Department of Surgical Sciences, University of Genoa, Genoa, Italy
| | - E Dellepiane
- Division of Implant Prosthodontics, Department of Surgical Sciences, University of Genoa, Genoa, Italy
| | - D Baldi
- Division of Implant Prosthodontics, Department of Surgical Sciences, University of Genoa, Genoa, Italy
| | - M G Longobardi
- Department of Health Sciences, University of Genoa, Genoa, Italy
| | - P Pera
- Division of Implant Prosthodontics, Department of Surgical Sciences, University of Genoa, Genoa, Italy
| | - A Izzotti
- Department of Health Sciences, University of Genoa, Genoa, Italy.,IRCCS AOU San Martino IST, Genoa, Italy
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Barone A, Toti P, Bertossi D, Marconcini S, De Santis D, Nocini PF, Iurlaro A, Alfonsi F, Covani U. Gene Expression of Human Mesenchymal Stem Cells Cultured on Titanium Dental Implant Surfaces. J Craniofac Surg 2016; 27:712-7. [PMID: 27054428 DOI: 10.1097/scs.0000000000002551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE The study shows how the influence of titanium surfaces on human mesenchymal stem cells differentiates toward osteocytes lineage and how, after growth, on machined titanium disk or etched titanium disk, changes, in gene expression for RUNX1, CTNNB1, SP7, and DLX5. METHODS Genes were analyzed by means of quantitative real-time polimerase chain reaction. Osseo genic lineage differentiation was also tested by means of the catenin-β1 immunofluorescence, induced osteoblasts, which represented the internal control. RESULTS The RUNX1 and SP7 expressions in the induced osteoblasts prove to be different, compared with cells cultured on metallic supports. Moreover, the levels of expression of the runt-related transcription factor 1 and the osterix appeared more down-regulated in cells that grew on a machined titanium surface. In the present experimental model, mRNA expression of DLX5 and CTNNB1 in human mesenchymal stem cells, cultured on each of the titanium surfaces, showed no differences, compared with osteoblast-induced cells. The immunofluorescence scores, for protein expression of beta-catenin in human mesenchymal stem cell treated cells, illustrates significantly improved results with the etched surface. CONCLUSIONS Present results suggested that different titanium surfaces might induce some differences in terms of gene expression. The only gene analyzed, which proved significant differences between the 2 titanium supports, was SP7; however, the other 3 genes indicating the existence of differences between the 2 titanium groups.
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Affiliation(s)
- Antonio Barone
- *Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa†Tuscan Stomatologic Institute, Versilia General Hospital, Lido di Camaiore (LU)‡Department of Surgical Sciences, Dental and Maxillofacial Department, University of Verona, Verona§Free practice in Francavilla Fontana||Department of Translational Medicine and Surgery, University of Florence, Florence, Italy
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Identification of genetic loci stratified by diabetic status and microRNA related SNPs influencing kidney function in Korean populations. Genes Genomics 2016. [DOI: 10.1007/s13258-016-0411-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Effect of dental implant materials on the extracellular matrix formation and cellular adhesion in MG-63 cells. Mol Cell Toxicol 2013. [DOI: 10.1007/s13273-013-0041-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
Osseointegration-based dental implants have become a well-accepted treatment modality for complete and partial edentulism. The success of this treatment largely depends on the stable integration and maintenance of implant fixtures in alveolar bone; however, the molecular and cellular mechanisms regulating this unique tissue reaction have not yet been fully uncovered. Radiographic and histologic observations suggest the sustained retention of peri-implant bone without an apparent susceptibility to catabolic bone remodeling; therefore, implant-induced bone formation continues to be intensively investigated. Increasing numbers of whole-genome transcriptome studies suggest complex molecular pathways that may play putative roles in osseointegration. This review highlights genetic networks related to bone quality, the transient chondrogenic phase, the vitamin D axis, and the peripheral circadian rhythm to elute the regulatory mechanisms underlying the establishment and maintenance of osseointegration.
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Affiliation(s)
- I Nishimura
- Weintraub Center for Reconstructive Biotechnology, Divisions of Advanced Prosthodontics and Oral Medicine & Biology, UCLA School of Dentistry, Los Angeles, CA 90095-1668
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AlFarraj Aldosari A, Anil S, Alasqah M, Al Wazzan KA, Al Jetaily SA, Jansen JA. The Influence of implant geometry and surface composition on bone response. Clin Oral Implants Res 2013; 25:500-5. [DOI: 10.1111/clr.12190] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Abdullah AlFarraj Aldosari
- Department of Prosthetic Dental Science, College of Dentistry; King Saud University; Riyadh Saudi Arabia
- Dental Implant and Osseointegration Research Chair (DIORC), College of Dentistry; King Saud University; Riyadh Saudi Arabia
| | - Sukumaran Anil
- Department of Periodontics and Community Dentistry, College of Dentistry; King Saud University; Riyadh Saudi Arabia
- Dental Implant and Osseointegration Research Chair (DIORC), College of Dentistry; King Saud University; Riyadh Saudi Arabia
| | - Mohammed Alasqah
- Department of Periodontology; Tufts University School of Dental Medicine; Boston MA USA
| | - Khalid A. Al Wazzan
- Department of Prosthetic Dental Science, College of Dentistry; King Saud University; Riyadh Saudi Arabia
- Dental Implant and Osseointegration Research Chair (DIORC), College of Dentistry; King Saud University; Riyadh Saudi Arabia
| | - Samer A. Al Jetaily
- Department of Prosthetic Dental Science, College of Dentistry; King Saud University; Riyadh Saudi Arabia
- Dental Implant and Osseointegration Research Chair (DIORC), College of Dentistry; King Saud University; Riyadh Saudi Arabia
| | - John A. Jansen
- Department of Biomaterials; Radboud University, Nijmegen Medical Center; Nijmegen The Netherlands
- Dental Implant and Osseointegration Research Chair (DIORC), College of Dentistry; King Saud University; Riyadh Saudi Arabia
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Significance of nano- and microtopography for cell-surface interactions in orthopaedic implants. J Biomed Biotechnol 2012; 2007:69036. [PMID: 18274618 PMCID: PMC2233875 DOI: 10.1155/2007/69036] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2007] [Accepted: 08/05/2007] [Indexed: 01/12/2023] Open
Abstract
Cell-surface interactions play a crucial role for biomaterial application in orthopaedics. It is evident that not only the chemical composition of solid substances influence cellular adherence, migration, proliferation and differentiation but also the surface topography of a biomaterial. The progressive application of nanostructured surfaces in medicine has gained increasing interest to improve the cytocompatibility and osteointegration of orthopaedic implants. Therefore, the understanding of cell-surface interactions is of major interest for these substances. In this review, we elucidate the principle mechanisms of nano- and microscale cell-surface interactions in vitro for different cell types onto typical orthopaedic biomaterials such as titanium (Ti), cobalt-chrome-molybdenum (CoCrMo) alloys, stainless steel (SS), as well as synthetic polymers (UHMWPE, XLPE, PEEK, PLLA). In addition, effects of nano- and microscaled particles and their significance in orthopaedics were reviewed. The significance for the cytocompatibility of nanobiomaterials is discussed critically.
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Hakki SS, Bozkurt SB, Hakki EE, Korkusuz P, Purali N, Koç N, Timucin M, Ozturk A, Korkusuz F. Osteogenic differentiation of MC3T3-E1 cells on different titanium surfaces. Biomed Mater 2012; 7:045006. [DOI: 10.1088/1748-6041/7/4/045006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Patel M, Dunn TA, Tostanoski S, Fisher JP. Cyclic acetal hydroxyapatite composites and endogenous osteogenic gene expression of rat marrow stromal cells. J Tissue Eng Regen Med 2011; 4:422-36. [PMID: 20047194 DOI: 10.1002/term.252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this study, bone marrow stromal cells (BMSCs) were differentiated on cyclic acetal composites containing hydroxyapatite (HA) particles (110 or 550 nm). These composites were evaluated for their role in influencing osteogenic signalling by encapsulated BMSCs. While a number of factors exert influence on osteogenic signalling during the production of an osteogenic matrix, we hypothesize that HA particles may upregulate bone growth factor expression due to enhanced BMSC adhesion. To this end, fluorescence-activated cell sorting (FACS) analysis was performed for the evaluation of BMSC surface marker expression after culture on two-dimensional (2D) cyclic acetal/HA composites. Three-dimensional (3D) composites were then fabricated by incorporating 110 or 550 nm HA particles at 5, 10 and 50 ng/ml concentrations. Bone growth factor molecules (TGFbeta1, FGF-2 and PDGFa), bone biomarker molecules (ALP, OC, OPN and OCN) and extracellular matrix-related molecules (FN, MMP-13, Dmp1 and aggrecan) were selected for evaluation of osteogenic signalling mechanisms when in presence of these composites. FACS results at day 0 demonstrated that BMSCs were a heterogeneous population with a small percentage of cells staining positive for CD29, CD90 and CD51/61, while staining negative for CD34 and CD45. At day 3, a significant enrichment of cells staining strongly for CD29, CD90 and CD51/61 was achieved. Gene expression patterns for bone growth factors and extracellular matrix molecules were found to be largely dependent upon the size of HA particles. Bone marker molecules, except OCN, had unaltered expression patterns in response to the varied size of HA particles. Overall, the results indicate that larger-sized HA particles upregulate PDGF and these groups were also associated with the most significant increase in osteodifferentiation markers, particularly ALP. Our results suggest that endogenous signalling is dependent upon material properties. Furthermore, we propose that studying gene expression patterns induced by the surrounding biomaterials environment is a fundamental step in the creation of engineered tissues.
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Affiliation(s)
- Minal Patel
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
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Fontana F, Rocchietta I, Addis A, Schupbach P, Zanotti G, Simion M. Effects of a calcium phosphate coating on the osseointegration of endosseous implants in a rabbit model. Clin Oral Implants Res 2010; 22:760-766. [DOI: 10.1111/j.1600-0501.2010.02056.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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FUMING H, GUOLI Y, XIAOXIANG W, SHIFANG Z. The removal torque of titanium implant inserted in rabbit femur coated with biomimetic deposited Ca-P coating. J Oral Rehabil 2008; 35:754-65. [DOI: 10.1111/j.1365-2842.2008.01859.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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