1
|
Kashiwada H, Shimizu Y, Sano Y, Yamauchi K, Guang H, Kumamoto H, Unuma H, Zhu YJ. In vivo behaviors of highly flexible paper consisting of ultralong hydroxyapatite nanowires. J Biomed Mater Res B Appl Biomater 2021; 109:1611-1621. [PMID: 33665970 DOI: 10.1002/jbm.b.34819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/17/2021] [Accepted: 01/20/2021] [Indexed: 11/05/2022]
Abstract
This study was conducted in order to investigate biological compatibility of a thin and flexible hydroxyapatite (HAP) paper which consists of ultralong hydroxyapatite nanowires. Circular-shaped cranial bone defects with a diameter of 8.8 mm were prepared to expose the dura maters in Wistar rats. The similar-sized, circular-shaped HAP paper was placed at the bottom of the bone defects. After 2, 4, and 8 weeks, the rats were sacrificed, and the experimental sections were examined by micro-CT scanning and histological observation. The HAP paper covered with fibrous tissues showed no inflammatory cell infiltration, and their thicknesses decreased over time. Tartrate-resistant acid phosphatase-positive osteoclast-like cells were induced around the edges of the HAP paper along with the exfoliation of the HAP paper. The newly-formed bones were observed in the bone-defected areas, either with a direct contact with the HAP paper or through thin fibrous tissues. The HAP paper-induced osteoblast differentiation was confirmed since the alkaline phosphatase activities were detected on the surfaces of the HAP paper. These results indicated that the HAP paper may induce osteogenesis without causing any harmful effects. The highly flexible HAP paper can contribute to further development of bone regenerative therapy.
Collapse
Affiliation(s)
| | - Yoshinaka Shimizu
- Division of Oral Pathology, Graduate School of Dentistry, Sendai, Japan
| | - Yuya Sano
- Division of Oral Pathology, Graduate School of Dentistry, Sendai, Japan
| | | | - Hong Guang
- Division of International Collaborative and Innovative Dentistry, Tohoku University, Sendai, Miyagi, Japan
| | | | - Hidero Unuma
- Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yamagata, Japan
| | - Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| |
Collapse
|
2
|
Omar O, Elgali I, Dahlin C, Thomsen P. Barrier membranes: More than the barrier effect? J Clin Periodontol 2019; 46 Suppl 21:103-123. [PMID: 30667525 PMCID: PMC6704362 DOI: 10.1111/jcpe.13068] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/21/2018] [Accepted: 01/09/2019] [Indexed: 12/13/2022]
Abstract
AIM To review the knowledge on the mechanisms controlling membrane-host interactions in guided bone regeneration (GBR) and investigate the possible role of GBR membranes as bioactive compartments in addition to their established role as barriers. MATERIALS AND METHODS A narrative review was utilized based on in vitro, in vivo and available clinical studies on the cellular and molecular mechanisms underlying GBR and the possible bioactive role of membranes. RESULTS Emerging data demonstrate that the membrane contributes bioactively to the regeneration of underlying defects. The cellular and molecular activities in the membrane are intimately linked to the promoted bone regeneration in the underlying defect. Along with the native bioactivity of GBR membranes, incorporating growth factors and cells in membranes or with graft materials may augment the regenerative processes in underlying defects. CONCLUSION In parallel with its barrier function, the membrane plays an active role in hosting and modulating the molecular activities of the membrane-associated cells during GBR. The biological events in the membrane are linked to the bone regenerative and remodelling processes in the underlying defect. Furthermore, the bone-promoting environments in the two compartments can likely be boosted by strategies targeting both material aspects of the membrane and host tissue responses.
Collapse
Affiliation(s)
- Omar Omar
- Department of BiomaterialsInstitute of Clinical SciencesSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Ibrahim Elgali
- Department of BiomaterialsInstitute of Clinical SciencesSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Christer Dahlin
- Department of BiomaterialsInstitute of Clinical SciencesSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Department of Oral Maxillofacial Surgery/ENTNU‐Hospital OrganisationTrollhättanSweden
| | - Peter Thomsen
- Department of BiomaterialsInstitute of Clinical SciencesSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| |
Collapse
|
3
|
Hu C, Gong T, Lin W, Yuan Q, Man Y. Immediate implant placement into posterior sockets with or without buccal bone dehiscence defects: A retrospective cohort study. J Dent 2017; 65:95-100. [PMID: 28739320 DOI: 10.1016/j.jdent.2017.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 06/28/2017] [Accepted: 07/19/2017] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES To evaluate bone reconstruction and soft tissue reactions at immediate implants placed into intact sockets and those with buccal bone dehiscence defects. METHODS Fifty-nine internal connection implants from four different manufacturers were immediately placed in intact sockets(non-dehiscence group, n=40), and in alveoli with buccal bone dehiscence defects: 1) Group 1(n= N10), the defect depth measured 3-5 mm from the gingival margin. 2) Group 2(n=9), the depth ranged from 5mm to 7mm. The surrounding bony voids were grafted with deproteinized bovine bone mineral (DBBM) particles. Cone beam computed tomography(CBCT) was performed immediately after surgery (T1), and at 6 months later(T2). Radiographs were taken at prosthesis placement and one year postloading(T3). Soft tissue parameters were measured at baseline (T0), prosthesis placement and T3. RESULTS No implants were lost during the observation period. For the dehiscence groups, the buccal bone plates were radiographically reconstructed to comparable horizontal and vertical bone volumes compared with the non-dehiscence group. Marginal bone loss occurred between the time of final restoration and 1-year postloading was not statistically different(P=0.732) between groups. Soft tissue parameters did not reveal inferior results for the dehiscence groups. CONCLUSIONS Within the limitations of this study, flapless implant placement into compromised sockets in combination with DBBM grafting may be a viable technique to reconstitute the defected buccal bone plates due to space maintenance and primary socket closure provided by healing abutments and bone grafts. CLINICAL SIGNIFICANCE Immediate implants and DBBM grafting without using membranes may be indicated for sockets with buccal bone defects.
Collapse
Affiliation(s)
- Chen Hu
- State Key Laboratory of Oral Diseases and Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ting Gong
- State Key Laboratory of Oral Diseases and Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Weimin Lin
- State Key Laboratory of Oral Diseases and Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Quan Yuan
- State Key Laboratory of Oral Diseases and Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yi Man
- State Key Laboratory of Oral Diseases and Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| |
Collapse
|
4
|
Sanz-Sánchez I, Ortiz-Vigón A, Sanz-Martín I, Figuero E, Sanz M. Effectiveness of Lateral Bone Augmentation on the Alveolar Crest Dimension. J Dent Res 2015. [DOI: 10.1177/0022034515594780] [Citation(s) in RCA: 146] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Lateral ridge augmentation procedures are aimed to reconstruct deficient alveolar ridges or to build up peri-implant dehiscence and fenestrations. The objective of this systematic review was to assess the efficacy of these interventions by analyzing data from 40 clinical studies evaluating bone augmentation through either the staged or the simultaneous approach. The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) guideline for systematic reviews was used. The primary outcomes were the changes at reentry, in the ridge width, and in the vertical and horizontal dimensions of the peri-implant defect, measured in millimeters, in the staged and simultaneous approaches, respectively. The results of the meta-analysis showed, for the simultaneous approach, a statistically significant defect height reduction when all treatments were analyzed together (weighted mean difference [WMD] = −4.28 mm; 95% confidence interval: [CI] –4.88, –3.69; P < 0.01). The intervention combining bone replacement grafts with barrier membranes was associated with superior outcomes The most frequently used intervention was the combination of xenograft and bioabsorbable membrane. Similarly, for the staged approach, there was a statistically significant horizontal gain when all treatment groups were combined (WMD = 3.90 mm; 95% CI: 3.52, 4.28; P < 0.001). The most frequently used intervention was the use of autogenous bone blocks. Both treatment strategies led to high survival and success rates (>95%) for the implants placed on the regenerated sites. Nonexposed sites gained significantly more in the simultaneous and staged approaches (WMD = 1.1 and 3.1 mm).
Collapse
Affiliation(s)
- I. Sanz-Sánchez
- Section of Graduate Periodontology, University Complutense, Madrid, Spain
| | - A. Ortiz-Vigón
- Section of Graduate Periodontology, University Complutense, Madrid, Spain
| | - I. Sanz-Martín
- Section of Graduate Periodontology, University Complutense, Madrid, Spain
| | - E. Figuero
- Section of Graduate Periodontology, University Complutense, Madrid, Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
| | - M. Sanz
- Section of Graduate Periodontology, University Complutense, Madrid, Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
| |
Collapse
|
5
|
Lim HP, Mercado-Pagan AE, Yun KD, Kang SS, Choi TH, Bishop J, Koh JT, Maloney W, Lee KM, Yang Y, Park SW. The effect of rhBMP-2 and PRP delivery by biodegradable β-tricalcium phosphate scaffolds on new bone formation in a non-through rabbit cranial defect model. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1895-1903. [PMID: 23779152 PMCID: PMC4012921 DOI: 10.1007/s10856-013-4939-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 04/20/2013] [Indexed: 06/02/2023]
Abstract
This study evaluated whether the combination of biodegradable β-tricalcium phosphate (β-TCP) scaffolds with recombinant human bone morphogenetic protein-2 (rhBMP-2) or platelet-rich plasma (PRP) could accelerate bone formation and increase bone height using a rabbit non-through cranial bone defect model. Four non-through cylindrical bone defects with a diameter of 8-mm were surgically created on the cranium of rabbits. β-TCP scaffolds in the presence and absence of impregnated rhBMP-2 or PRP were placed into the defects. At 8 and 16 weeks after implantation, samples were dissected and fixed for analysis by microcomputed tomography and histology. Only defects with rhBMP-2 impregnated β-TCP scaffolds showed significantly enhanced bone formation compared to non-impregnated β-TCP scaffolds (P < 0.05). Although new bone was higher than adjacent bone at 8 weeks after implantation, vertical bone augmentation was not observed at 16 weeks after implantation, probably due to scaffold resorption occurring concurrently with new bone formation.
Collapse
Affiliation(s)
- Hyun-Pil Lim
- Department of Prosthodontics, Dental Science Research Institute and BK21 Project, School of Dentistry, Chonnam National University
| | | | - Kwi-Dug Yun
- Department of Prosthodontics, Dental Science Research Institute and BK21 Project, School of Dentistry, Chonnam National University
| | - Seong-Soo Kang
- College of Veterinary Medicine, Chonnam National University, Gwangju, Korea
| | - Taek-Hue Choi
- Department of Prosthodontics, Dental Science Research Institute and BK21 Project, School of Dentistry, Chonnam National University
| | - Julius Bishop
- Department of Orthopedic Surgery, Stanford University, Stanford, CA, USA
| | - Jeong-Tae Koh
- Department of Pharmacology and Dental Therapeutics, Dental Science Research Institute and BK21 Project, School of Dentistry, Chonnam National University, Gwangju
| | - William Maloney
- Department of Orthopedic Surgery, Stanford University, Stanford, CA, USA
| | - Kwang-Min Lee
- Department of Materials Science and Engineering, Research Institute for Functional Surface Engineering, Chonnam National University, Gwangju, Korea
| | - Yunzhi Yang
- Department of Orthopedic Surgery, Stanford University, Stanford, CA, USA
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | - Sang-Won Park
- Department of Prosthodontics, Dental Science Research Institute and BK21 Project, School of Dentistry, Chonnam National University
| |
Collapse
|
6
|
Zigdon H, Lewinson D, Bick T, Machtei EE. Vertical Bone Augmentation Using Different Osteoconductive Scaffolds Combined with Barrier Domes in the Rat Calvarium. Clin Implant Dent Relat Res 2012; 16:138-44. [DOI: 10.1111/j.1708-8208.2012.00452.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
7
|
Yeom J, Chang S, Park JK, Je JH, Yang DJ, Choi SK, Shin HI, Lee SJ, Shim JH, Cho DW, Hahn SK. Synchrotron X-ray bioimaging of bone regeneration by artificial bone substitute of MegaGen Synthetic Bone and hyaluronate hydrogels. Tissue Eng Part C Methods 2011; 16:1059-68. [PMID: 20073984 DOI: 10.1089/ten.tec.2009.0759] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Synchrotron X-ray bioimaging was successfully carried out to observe bone regeneration by a novel artificial bone substitute of bioactive MegaGen Synthetic Bone (MGSB) and hyaluronate (HA) hydrogels. A biphasic calcium phosphate of MGSB was prepared by chemical precipitation method, with a porous spherical morphology. On the basis of the fact that HA plays important roles in bone regeneration and promotes the differentiation, vascularization, and migration of stem cells, HA-cystamine (CYS) hydrogels with cleavable disulfide linkages were prepared to supply HA continuously for effective bone regeneration by their controlled degradation in vivo. Among seven different samples using Bio-OSS®, MGSB, and/or several kinds of HA hydrogels, MGSB/HA-CYS hydrogels resulted in the most significant bone regeneration in the calvarial critical bone defect of New Zealand white rabbits. Histological and histomorphometric analyses revealed that the bone regeneration by MGSB/HA-CYS hydrogels was as high as 43%, occupying 71% of the bone defect area with MGSB in the form of a calvarial bone plate in 4 weeks. After that, MGSB was bioabsorbed and replaced gradually with regenerated bones as observed in 8 weeks. Synchrotron X-ray imaging clearly confirmed the effective bone regeneration by MGSB/HA-CYS hydrogels, showing three-dimensional micron-scale morphologies of regenerated bones interconnected with MGSB. In addition, sequential nondestructive synchrotron X-ray tomographic analysis results from anterior to posterior of the samples were well matched with the histomorphometric analysis results. The clinically feasible artificial bone substitutes of MGSB/HA-CYS hydrogels will be investigated further for various bone tissue engineering applications using the synchrotron X-ray bioimaging systems.
Collapse
Affiliation(s)
- Junseok Yeom
- Department of Material Science and Engineering, Pohang University of Science and Technology (POSTECH), Nam-gu, Pohang, Korea
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Lee JA, Ku Y, Rhyu IC, Chung CP, Park YJ. Effects of fibrin-binding oligopeptide on osteopromotion in rabbit calvarial defects. J Periodontal Implant Sci 2010; 40:211-9. [PMID: 21072217 PMCID: PMC2967808 DOI: 10.5051/jpis.2010.40.5.211] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Accepted: 08/01/2010] [Indexed: 11/08/2022] Open
Abstract
PURPOSE Fibronectin (FN) has been shown to stimulate bone regeneration in animal models. The aim of this study was to evaluate the capacity of bovine bone mineral coated with synthetic oligopeptides to enhance bone regeneration in rabbit calvarial defects. METHODS Oligopeptides including fibrin-binding sequences of FN repeats were synthesized on the basis of primary and tertiary human plasma FN structures. Peptide coated and uncoated bone minerals were implanted into 10 mm calvarial defects in New Zealand white rabbits, and the animals were sacrificed at 4 or 8 weeks after surgery. After specimens were prepared, histologic examination and histomorphometric analysis were performed. RESULTS At 4 weeks after surgery, the uncoated groups showed a limited amount of osteoid formation at the periphery of the defect and the oligopeptide coated groups showed more osteoid formation and new bone formation in the center of the defect as well as at the periphery. At 8 weeks, both sites showed increased new bone formation. However, the difference between the two sites had reduced. CONCLUSIONS Fibrin-binding synthetic oligopeptide derived from FN on deproteinized bovine bone enhanced new bone formation in rabbit calvarial defects at the early healing stage. This result suggests that these oligopeptides can be beneficial in reconstructing oral and maxillofacial deformities or in regenerating osseous bone defects.
Collapse
Affiliation(s)
- Ju-A Lee
- Department of Periodontology and Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
| | | | | | | | | |
Collapse
|
9
|
Zhou X, Zhang Z, Li S, Bai Y, Xu H. Osteoconduction of different sizes of anorganic bone particles in a model of guided bone regeneration. Br J Oral Maxillofac Surg 2010; 49:37-41. [PMID: 20106572 DOI: 10.1016/j.bjoms.2010.01.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Accepted: 01/01/2010] [Indexed: 02/07/2023]
Abstract
The aim of this study was to evaluate the effect of two different sizes of anorganic bone particles (300-500 and 850-1000μm) on the formation of new bone in a model of guided bone regeneration. In both groups, newly formed bone was seen histologically adjacent to the original surface of the skull, and there were outgrowths to the centre of the secluded graft 4 weeks after implantation. Some particles near the surface were in contact with the newly formed bone, and osteoconductive bone growth was present along their surface. Ten weeks after implantation the area created by grafting with small particles seemed to have a denser structure than that created with large particles. Histomorphometric analysis showed a higher density of newly formed bone in the small-particle group than in the large-particle group both 4 and 10 weeks after implantation. The total contact length between newly formed bone and particles and the ratio of bone:space between the particles were also significantly higher in the small-particle group at both time points. We conclude that the size of grafted particles of bone and the spaces between particles are important determinants of osteogenesis during guided bone regeneration.
Collapse
Affiliation(s)
- Xinwen Zhou
- Department of Prothodontics, School of Stomatology, Capital Medical University, Beijing, China
| | | | | | | | | |
Collapse
|
10
|
Jian YK, Tian XB, Li B, Qiu B, Zhou ZJ, Yang Z, Li QH. Properties of deproteinized bone for reparation of big segmental defect in long bone. Chin J Traumatol 2008; 11:152-6. [PMID: 18507944 DOI: 10.1016/s1008-1275(08)60032-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE To explore suitable scaffold material for big segmental long bone defect by studying the properties of the prepared deproteinized bone. METHODS Cancellated bone were made as 30 mm x mm x 3 mm bone blocks from inferior extremity of pig femur along bone trabecula. The deproteinized bone was prepared with an improved method. Their morphological features, components, cell compatibility, mechanical and immunological properties were investigated respectively. RESULTS Deproteinized bone maintained natural reticular pore system. The main organic material is collagen I and inorganic composition is hydroxyapatite. It has good mechanical properties, cell adhesion rate and histocompatibility. CONCLUSION This deproteinized bone can be applicable as scaffold for reparation of big segmental defect in long bone.
Collapse
Affiliation(s)
- Yue-kui Jian
- Department of Orthopedics, Guizhou Provincial People's Hospital, Gui Yang 550002, China.
| | | | | | | | | | | | | |
Collapse
|