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Shi Y, Liu J, Du M, Zhang S, Liu Y, Yang H, Shi R, Guo Y, Song F, Zhao Y, Lan J. Customized Barrier Membrane (Titanium Alloy, Poly Ether-Ether Ketone and Unsintered Hydroxyapatite/Poly-l-Lactide) for Guided Bone Regeneration. Front Bioeng Biotechnol 2022; 10:916967. [PMID: 35837554 PMCID: PMC9273899 DOI: 10.3389/fbioe.2022.916967] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022] Open
Abstract
Sufficient bone volume is indispensable to achieve functional and aesthetic results in the fields of oral oncology, trauma, and implantology. Currently, guided bone regeneration (GBR) is widely used in reconstructing the alveolar ridge and repairing bone defects owing to its low technical sensitivity and considerable osteogenic effect. However, traditional barrier membranes such as collagen membranes or commercial titanium mesh cannot meet clinical requirements, such as lack of space-preserving ability, or may lead to more complications. With the development of digitalization and three-dimensional printing technology, the above problems can be addressed by employing customized barrier membranes to achieve space maintenance, precise predictability of bone graft, and optimization of patient-specific strategies. The article reviews the processes and advantages of three-dimensional computer-assisted surgery with GBR in maxillofacial reconstruction and alveolar bone augmentation; the properties of materials used in fabricating customized bone regeneration sheets; the promising bone regeneration potency of customized barrier membranes in clinical applications; and up-to-date achievements. This review aims to present a reference on the clinical aspects and future applications of customized barrier membranes.
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Affiliation(s)
- Yilin Shi
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Jin Liu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Mi Du
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Shengben Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Yue Liu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Hu Yang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Ruiwen Shi
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Yuanyuan Guo
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Feng Song
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Yajun Zhao
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
- *Correspondence: Jing Lan, ; Yajun Zhao,
| | - Jing Lan
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
- *Correspondence: Jing Lan, ; Yajun Zhao,
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Effects of ultraviolet irradiation on beta-tricalcium phosphate as a bone graft substitute. Odontology 2022; 110:682-696. [PMID: 35332382 DOI: 10.1007/s10266-022-00704-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
Abstract
Surface modification of various materials using ultraviolet (UV) irradiation improves their wettability. The purpose of this study was to investigate the wettability of a β-tricalcium phosphate (TCP) surface and the composition changes and bioactivity of β-TCP after UV irradiation. We applied 172 nm UV treatment to a β-TCP surface and measured the contact angle before and after UV irradiation. Energy-dispersive X-ray and Fourier transform infrared spectroscopy examinations were performed on the β-TCP disk with or without UV treatment. In an adhesion test of bone marrow cells using β-TCP disks with and without UV irradiation, cell attachment was measured 10, 30, 50, and 70 h after β-TCP insertion. UV-irradiated β-TCP osteogenesis and absorption of bone substitutes were evaluated using hematoxylin and eosin and tartrate-resistant acid phosphatase (TRAP) staining in a rabbit sinus model. The contact angle on the TCP surface decreased from 70° to 10° owing to UV irradiation. Conversely, UV irradiation did not change the composition of carbon, oxygen, and phosphorus. In the cell adhesion test, UV-irradiated β-TCP significantly increased cell adhesion compared with UV-unirradiated β-TCP after 10 to 30 h of culture. In the rabbit sinus model, TRAP staining showed that UV-irradiated β-TCP significantly increased the number of TRAP-positive cells compared with unirradiated β-TCP granules in the central part of β-TCP. Our results indicate that the UV irradiation of β-TCP improves its clinical utility for surgical bone augmentation in the oral and maxillofacial region.
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Bone Regeneration Capacity of Newly Developed Uncalcined/Unsintered Hydroxyapatite and Poly-l-lactide-co-glycolide Sheet in Maxillofacial Surgery: An In Vivo Study. NANOMATERIALS 2020; 11:nano11010022. [PMID: 33374294 PMCID: PMC7824502 DOI: 10.3390/nano11010022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/19/2020] [Accepted: 12/22/2020] [Indexed: 12/18/2022]
Abstract
Uncalcined/unsintered hydroxyapatite and poly-l-lactide-co-glycolide (u-HA/PLLA/PGA) is a new bioresorbable nanomaterial with superior characteristics compared with current bioresorbable materials, including appropriate mechanical properties, outstanding bioactive/osteoconductive features, and remarkably shorter resorption time. Nevertheless, the bone regeneration characteristics of this nanomaterial have not been evaluated in maxillofacial reconstructive surgery. In this study, we used a rat mandible model to assess the bone regeneration ability of u-HA/PLLA/PGA material, compared with uncalcined/unsintered hydroxyapatite and poly-l-lactide acid (u-HA/PLLA) material, which has demonstrated excellent bone regenerative ability. A 4-mm-diameter defect was created at the mandibular angle area in 28 Sprague Dawley male rats. The rats were divided into three groups: u-HA/PLLA/PGA (u-HA/PLLA/PGA graft + defect), u-HA/PLLA (u-HA/PLLA graft + defect), and sham control (defect alone). At 1, 3, 8, and 16 weeks after surgeries, the rats were sacrificed and assessed by micro-computed tomography, histological analysis with hematoxylin and eosin staining, and immunohistochemical analyses. The results confirmed that the accelerated bone bioactive/regenerative osteoconduction of u-HA/PLLA/PGA was comparable with that of u-HA/PLLA in the rat mandible model. Furthermore, this new regenerative nanomaterial was able to more rapidly induce bone formation in the early stage and had great potential for further clinical applications in maxillofacial reconstructive surgery.
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Dong QN, Kanno T, Bai Y, Sha J, Hideshima K. Bone Regeneration Potential of Uncalcined and Unsintered Hydroxyapatite/Poly l-lactide Bioactive/Osteoconductive Sheet Used for Maxillofacial Reconstructive Surgery: An In Vivo Study. MATERIALS 2019; 12:ma12182931. [PMID: 31514283 PMCID: PMC6766281 DOI: 10.3390/ma12182931] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/21/2019] [Accepted: 09/09/2019] [Indexed: 12/11/2022]
Abstract
Uncalcined and unsintered hydroxyapatite/poly l-lactide (u-HA/PLLA) material has osteoconductive characteristics and is available for use as a maxillofacial osteosynthetic reconstruction device. However, its bone regeneration ability in the maxillofacial region has not been fully investigated. This study is the first to assess the bone regenerative potential of osteoconductive u-HA/PLLA material when it is used for repairing maxillofacial bone defects. A total of 21 Sprague-Dawley male rats were divided into three groups—the u-HA/PLLA, PLLA, or sham control groups. A critical size defect of 4 mm was created in the mandible of each rat. Then, the defect was covered with either a u-HA/PLLA or PLLA sheet on the buccal side. The rats in each group were sacrificed at 2, 4, or 8 weeks. The rats’ mandibles were sampled for histological analysis with hematoxylin and eosin staining, histomorphometry, and immunohistochemistry with Runx2 and osteocalcin (OCN) antibody. The amount of newly formed bone in the u-HA/PLLA group was significantly higher than that of the PLLA group. The expression of Runx2 and OCN in the u-HA/PLLA group was also significantly higher. These results demonstrate that the u-HA/PLLA material has excellent bone regenerative ability and confirm its applicability as a reconstructive device in maxillofacial surgery.
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Affiliation(s)
- Quang Ngoc Dong
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Shimane 693-8501, Japan.
| | - Takahiro Kanno
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Shimane 693-8501, Japan.
| | - Yunpeng Bai
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Shimane 693-8501, Japan.
| | - Jingjing Sha
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Shimane 693-8501, Japan.
| | - Katsumi Hideshima
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Shimane 693-8501, Japan.
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In Vivo Degradation of Forged-Unsintered Hydroxyapatite and Poly-L-lactide Mesh Used for Orbital Reconstruction. J Craniofac Surg 2019; 30:1208-1210. [PMID: 30676443 DOI: 10.1097/scs.0000000000005163] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to assess compositional changes in a forged-unsintered hydroxyapatite and poly-L-lactide (uHA/PLLA) mesh at 651 days after insertion into human body.A 35-year-old female patient had left tripod fracture, orbital medial wall and floor fracture, and superficial lateral palpebral ligament rupture. On the 9th posttrauma day, the tripod fracture was reduced and fixed with plates, and the orbital wall and floor were reconstructed with a resorbable mesh. The floor and medial wall were reconstructed with a trimmed mesh made of uHA/PLLA (Osterotrans-MX; Takiron Co, Umeda, Japan). On postoperative day 620, she complained of enophthalmos of left eye (right eye, 18 mm; left eye, 16 mm). Secondary reconstruction of the orbital floor was performed with an iliac bone graft 651 days after insertion. During the secondary operation, the uHA/PLLA mesh that had been previously inserted was removed. The mesh was removed and analyzed using gel permeation chromatography (GPC) and Fourier transform infrared spectroscopy (FTIR).The GPC revealed that the weight average molecular weight (Mw) decreased from 542,000 to 83,300 Da and the number average molecular weight (Mn) decreased from 124,000 to 20,200 Da in the specimen from the operation. In the postinsertion FTIR spectrum, weak 1648.6 and 1656.1/cm peaks newly appeared. The strong 1038/cm peak of the initial specimen changed slightly into a less strong 1041.8/cm peak.In conclusion, the reduced Mw and Mn in the postinsertion specimen suggest that uHA/PLLA has one of the favorable degradation properties. The newly appeared bands are thought to be carbon-carbon double bonds of alkenes.
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Takayama A, Moroi A, Saito Y, Yoshizawa K, Nishida T, Ueki K. Evaluation of Space-Maintaining Sinus Membrane Using the Absorbable Screws in Sinus Lifting Bone Augmentation. IMPLANT DENT 2018; 28:28-38. [PMID: 30507651 DOI: 10.1097/id.0000000000000843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE We investigated whether it was possible to perform a sinus lift maintaining absorbable screw material with biological activity. MATERIALS AND METHODS Thirty rabbits were used. The screws used in this study were unsintered hydroxyapatite/poly-L-lactic acid (uHA/PLLA) (uHA/PLLA group) and titanium alloy (Ti group). Some uHA/PLLA screws were treated with ultraviolet light (UV-uHA/PLLA group). Each group consisted of 10 rabbits, and 2 screws were implanted for 1 rabbit. The screws were implanted into the frontal bone. Rabbits were euthanized at 3 days, 1, 2, 3, and 4 weeks postoperatively and prepared for histological examination, BMP-2 cell staining, and micro-computed tomography (micro-CT) assessment. RESULTS At 1, 2, and 3 weeks, the UV uHA/PLLA group had significantly more bone contact and new bone ratio on histological assessment than the other 2 groups. At 1, 2, 3, and 4 weeks, micro-CT assessment revealed significant differences between the UV uHA/PLLA group and the other 2 groups. CONCLUSIONS Sinus lift surgery using absorbable screw allowed bone formation. The UV-treated hydroxyapatite/poly-L-lactic acid (uHA/PLLA) was superior for sinus lift bone augmentation using a screw.
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Affiliation(s)
- Akihiro Takayama
- Graduate Student, Division of Clinical Medicine, Department of Oral and Maxillofacial Surgery, Graduate Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
| | - Akinori Moroi
- Junior Associate Professor, Division of Clinical Medicine, Department of Oral and Maxillofacial Surgery, Graduate Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
| | - Yuki Saito
- Graduate Student, Division of Clinical Medicine, Department of Oral and Maxillofacial Surgery, Graduate Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
| | - Kunio Yoshizawa
- Lecture, Division of Clinical Medicine, Department of Oral and Maxillofacial Surgery, Graduate Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
| | - Taro Nishida
- Junior Associate Professor, Department of Endodontics and Operative Dentistry, School of Life Dentistry, Nippon Dental University, Tokyo, Japan
| | - Koichiro Ueki
- Professor, Division of Clinical Medicine, Department of Oral and Maxillofacial Surgery, Graduate Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
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Ikawa H, Moroi A, Yoshizawa K, Saida Y, Hotta A, Tsutsui T, Fukaya K, Hiraide R, Takayama A, Tsunoda T, Saito Y, Ueki K. Bone regeneration enhancement by ultra-violet (UV) treatment for uHA/PLLA absorbable mesh. J Craniomaxillofac Surg 2017; 45:634-641. [PMID: 28325653 DOI: 10.1016/j.jcms.2017.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 12/01/2016] [Accepted: 02/01/2017] [Indexed: 10/20/2022] Open
Abstract
PURPOSE The purpose of this study was to evaluate the effect of bone regeneration enhancement by ultra-violet (UV) treatment of an unsintered hydroxyapatite (u-HA)/poly-l-lactic acid (PLLA) mesh in rabbitnasal bone. MATERIALS AND METHODS Thirty adult male Japanese white rabbits (12-16 weeks, 2.5-3.0 kg) were used in this study. After incising along the nasal bone, 6 × 6 × depth 1 mm two bone defects were made on both sides. In the UV group (n = 30), the defects were covered with uHA/PLLA mesh, treated by UV (wavelength 172 nm, tube wall illumination 13 mW/cm2, period 8 min, intensity 6.26 J/cm2) and screwed. In the control group (n = 30), untreated uHA/PLLA was applied in a similar manner. The rabbits were sacrificed at 1, 2, 3, 4 and 6 weeks postoperatively, and formalin-fixed specimens were frozen. The specimens were stained with haematoxylin and eosin. For immunohistochemical analysis, the specimens were treated with anti-alkaline phosphatase (ALP). Finally, bone ratio and ALP expression were evaluated microscopically. RESULTS The UV group had a significantly higher number of ALP stained cells than the control group after 1, 2, and 3 weeks (P < 0.05). The bone ratio was also significantly higher in the UV group than in the control group after 1, 2, 3, and 4 weeks (P < 0.05). CONCLUSION This study suggests that bone regeneration can be enhanced by UV treatment using an uHA/PLLA mesh.
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Affiliation(s)
- Hiroumi Ikawa
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Akinori Moroi
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan.
| | - Kunio Yoshizawa
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Yuriko Saida
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Asami Hotta
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Takamitsu Tsutsui
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Kenichi Fukaya
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Ryota Hiraide
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Akihiro Takayama
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Tatsuya Tsunoda
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Yuki Saito
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
| | - Koichiro Ueki
- Department of Oral & Maxillofacial Surgery (Chief Professor: Koichiro Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan
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Moroi A, Okuno M, Kobayashi G, Gamo H, Serizawa I, Yoshizawa K, Ikawa H, Ueki K. Effect on surface character and mechanical property of unsintered hydroxyapatite/poly-l
-lactic acid (uHA/PLLA) material by UV treatment. J Biomed Mater Res B Appl Biomater 2016; 106:191-200. [DOI: 10.1002/jbm.b.33833] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/24/2016] [Accepted: 12/01/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Akinori Moroi
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research; University of Yamanashi, 1110 Shimokato; Chuo Yamanashi Japan
| | - Masaki Okuno
- Depatment of Medical Institure; Takiron Co. Ltd, 7-1-9, Minatojimaminamimachi, Chuo-ku; Kobe Hyogo Japan
| | - Go Kobayashi
- Suwa factory ORC Manufacturing Co., Ltd, 4896 Tamagawa; Chinoshi Nagano Japan
| | - Hitoshi Gamo
- Suwa factory ORC Manufacturing Co., Ltd, 4896 Tamagawa; Chinoshi Nagano Japan
| | - Izumi Serizawa
- Suwa factory ORC Manufacturing Co., Ltd, 4896 Tamagawa; Chinoshi Nagano Japan
| | - Kunio Yoshizawa
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research; University of Yamanashi, 1110 Shimokato; Chuo Yamanashi Japan
| | - Hiroumi Ikawa
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research; University of Yamanashi, 1110 Shimokato; Chuo Yamanashi Japan
| | - Koichiro Ueki
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research; University of Yamanashi, 1110 Shimokato; Chuo Yamanashi Japan
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Song WY, Liu GM, Li J, Luo YG. Bone morphogenetic protein-2 sustained delivery by hydrogels with microspheres repairs rabbit mandibular defects. Tissue Eng Regen Med 2016; 13:750-761. [PMID: 30603456 DOI: 10.1007/s13770-016-9123-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/17/2016] [Accepted: 03/14/2016] [Indexed: 02/06/2023] Open
Abstract
Mandible defect is a difficult issue in dental surgery owing to limited therapeutic options. Recombinant human bone morphogenetic protein-2 (rhBMP2) is osteoinductive in bone regeneration. This article prepared chitosan/collagen hydrogels with rhBMP2-incorporated gelatin microsphere (GMs) for a sustained release of rhBMP2 to induce bone regeneration in rabbits. In experiments, mandibular defects of 8 mm in diameter and 3 mm in depth were surgically prepared on the right cheek of 27 rabbits. Either chitosan/collagen hydrogels alone, rhBMP2-incorporated hydrogels, or hydrogels with rhBMP2-incorporated GMs were implanted to the defect sites. The animals were euthanized at 2, 6, 12 weeks following surgery. In results, scanning electronic microscope images revealled spherical GMs. The complex delivery systems, hydrogels with rhBMP2-incorporated GMs, exhibited ideal release profiles in vitro. The complex delivery systems resulted in apparent new bone formation within 12 weeks, as evidenced by computed tomography and histological observations. All these results demonstrated that the chitosan/collagen hydrogels with rhBMP2-incorporated GMs had a better capacity to heal mandible defects than other two hydrogel scaffolds. Chitosan/collagen hydrogels with rhBMP2-incorporated GMs might be potential carriers of rhBMP2 for accelerating the repair of mandibular defects.
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Affiliation(s)
- Wei-Yi Song
- 1College of Public Health, Jilin University, Changchun, Jilin, P R China
| | - Guo-Min Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, P R China
| | - Juan Li
- 1College of Public Health, Jilin University, Changchun, Jilin, P R China.,4College of Public Health, Jilin University, 828 Xinmin Street, 130021 Changchun, Jilin, P R China
| | - Yun-Gang Luo
- Department of Stomatology, The Second Hospital of Jilin University, 218 Ziqiang Street, 130041 Changchun, Jilin, P R China
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Higuchi M, Moroi A, Yoshizawa K, Kosaka A, Ikawa H, Iguchi R, Saida Y, Hotta A, Tsutsui T, Ueki K. Comparison between various densities of pore titanium meshes and e-polytetrafluoroethylene (ePTFE) membrane regarding bone regeneration induced by low intensity pulsed ultrasound (LIPUS) in rabbit nasal bone. J Craniomaxillofac Surg 2016; 44:1152-61. [PMID: 27443802 DOI: 10.1016/j.jcms.2016.06.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/18/2016] [Accepted: 06/27/2016] [Indexed: 10/21/2022] Open
Abstract
PURPOSE The purpose of this study was to compare bone regenerative capability following use of polytetrafluoroethylene (ePTFE) membrane against that when various densities of pore titanium meshes are used with and without low intensity pulsed ultrasound (LIPUS). MATERIALS AND METHODS Adult male white rabbits were divided into 8 groups. In 4 groups, after incising along the nasal bone, four 3 × 8 mm bone defects were made in both sides and covered by an ePTFE membrane (group E: n = 15), a high density pore titanium mesh (group H: n = 15), a low density pore titanium mesh (group L: n = 15), and no mesh (control) (group C: n = 15). Furthermore, LIPUS was irradiated after surgery in 4 groups (groups EL, HL, LL and CL, in each n = 15). The rabbits were sacrificed at 1, 2 and 8 weeks postoperative, and formalin-fixed specimens were embedded in acrylic resin. The specimens were stained with hematoxylin and eosin. For immunohistochemical analysis, the specimens were treated with bone morphogenetic protein (BMP)-2 antibody. RESULTS Group H had significantly higher values than groups L, E, and C regarding bone area ratio and labeling index of BMP-2 positive cells (P < 0.05). Furthermore, Group HL also had significantly higher values than the other groups regarding bone area ratio and labeling index of BMP-2 positive cells at 1, 2 and 8 weeks postoperative (P < 0.05). CONCLUSION The results suggested that high density pore titanium mesh could induce new bone regeneration more than low density pore titanium mesh and ePTFE membrane. New bone formation may increase following LIPUS application.
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Affiliation(s)
- Masatoshi Higuchi
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Akinori Moroi
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Kunio Yoshizawa
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Akihiko Kosaka
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Hiroumi Ikawa
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Ran Iguchi
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Yuriko Saida
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Asami Hotta
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Takamitsu Tsutsui
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan
| | - Koichiro Ueki
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. K. Ueki), Division of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, 409-3898, Japan.
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11
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Zhao B, Qiu X, Wang D, Li H, He X. Application of bioabsorbable screw fixation for anterior cervical decompression and bone grafting. Clinics (Sao Paulo) 2016; 71:320-4. [PMID: 27438565 PMCID: PMC4930666 DOI: 10.6061/clinics/2016(06)06] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 03/21/2016] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES To examine the application of bioabsorbable screws for anterior cervical decompression and bone grafting fixation and to study their clinical effects in the treatment of cervical spondylosis. METHODS From March 2007 to September 2012, 56 patients, 36 males and 20 females (38-79 years old, average 58.3±9.47 years), underwent a novel operation. Grafts were fixed by bioabsorbable screws (PLLA, 2.7 mm in diameter) after anterior decompression. The bioabsorbable screws were inserted from the midline of the graft bone to the bone surface of the upper and lower vertebrae at 45 degree angles. Patients were evaluated post-operatively to observe the improvement of symptoms and evaluate the fusion of the bone. The Japanese Orthopaedic Association (JOA) score was used to evaluate the recovery of neurological functions. RESULTS All screws were successfully inserted, with no broken screws. The rate of symptom improvement was 87.5%. All of the grafts fused well with no extrusion. The average time for graft fusion was 3.8±0.55 months (range 3-5 months). Three-dimensional reconstruction of CT scans demonstrated that the grafts fused with adjacent vertebrae well and that the screws were absorbed as predicted. The MRI findings showed that the cerebrospinal fluid was unobstructed. No obvious complications appeared in any of the follow-up evaluations. CONCLUSIONS Cervical spondylosis with one- or two-level involvement can be effectively treated by anterior decompression and bone grafting with bioabsorbable screw fixation. This operative method is safe and can avoid the complications induced by metal implants.
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Affiliation(s)
- Bo Zhao
- The Second Affiliated Hospital of Xi’an Jiaotong University, Department of Orthopedics, Xi’an/Shaanxi Province, PR China
- # Co-first authors
| | - Xiaowen Qiu
- The Second Affiliated Hospital of Xi’an Jiaotong University, Department of Orthopedics, Xi’an/Shaanxi Province, PR China
- # Co-first authors
| | - Dong Wang
- The Second Affiliated Hospital of Xi’an Jiaotong University, Department of Orthopedics, Xi’an/Shaanxi Province, PR China
| | - Haopeng Li
- The Second Affiliated Hospital of Xi’an Jiaotong University, Department of Orthopedics, Xi’an/Shaanxi Province, PR China
| | - Xijing He
- The Second Affiliated Hospital of Xi’an Jiaotong University, Department of Orthopedics, Xi’an/Shaanxi Province, PR China
- E-mail:
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12
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Peng W, Zheng W, Shi K, Wang W, Shao Y, Zhang D. An
in vivo
evaluation of PLLA/PLLA-gHA nano-composite for internal fixation of mandibular bone fractures. Biomed Mater 2015; 10:065007. [DOI: 10.1088/1748-6041/10/6/065007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Hamaji M, Kojima F, Koyasu S, Nobashi T, Tsuruyama T, Date H, Nakamura T. A rigid and bioabsorbable material for anterior chest wall reconstruction in a canine model. Interact Cardiovasc Thorac Surg 2014; 20:322-8. [PMID: 25505306 DOI: 10.1093/icvts/ivu416] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES The optimal material for anterior chest wall reconstruction following chest wall resection remains controversial. The aim of this experimental study was to evaluate short-term, morphological and histological outcomes of anterior chest wall reconstruction with a rigid and bioabsorbable material in a canine model. METHODS Twenty adult beagle dogs underwent anterior chest wall resection. In the experimental group (n = 10), the anterior chest wall was reconstructed with a rigid and bioabsorbable material composed of poly-L-lactide acid matrix (60 wt%) and uncalcined and unsintered hydroxyapatite particles (40 wt%), whereas in the control group it was (n = 10) reconstructed with dual polypropylene mesh sheets. Short-term complication rates were compared with a χ(2) test. Postoperative sternal deviations were evaluated with sternal alignment angles using computed tomography and multiplanar reconstruction and were compared with Mann-Whitney U-test immediately after reconstruction, and at 1, 3, 6, 9 and 12 months postoperatively. Histological findings of the regenerated chest wall tissue were obtained after staining with haematoxylin and eosin and Elastica van Gieson (EVG) and compared at 3, 6, 9 and 12 months. RESULTS There was not a significant difference in the short-term postoperative complication rate (P = 0.53) and the complication rate was 20% (wound infection, n = 1 and lethal mediastinitis, n = 1) in the control group and 10% (wound infection, n = 1) in the experimental group. The postoperative sternal deviation was significantly less remarkable at 1 month (123.3 ± 32.2° vs 159.4 ± 19.7°, P = 0.027), 3 months (109.8 ± 34.7° vs 150.9 ± 34.2°, P = 0.039) and 12 months (61 ± 15.6° vs 170.3 ± 6.6°, P = 0.046) in the experimental group than in the control group, whereas no significant difference was noted immediately after reconstruction (165.7 ± 6.4° vs 168.4 ± 9.1°, P = 0.50). Histological findings showed dense connective tissue in the regenerated chest wall in both groups and showed chondroblasts in the regenerated chest wall tissue at 3 and 6 months only in the experimental group. CONCLUSIONS Our results suggest that anterior chest wall reconstruction with a rigid and bioabsorbable material is feasible and may be a valuable alternative to reconstruction with a non-rigid and non-absorbable material.
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Affiliation(s)
- Masatsugu Hamaji
- Department of Bioartificial Organs, Graduate School of Medicine, Kyoto University, Kyoto, Japan Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Fumitsugu Kojima
- Department of Bioartificial Organs, Graduate School of Medicine, Kyoto University, Kyoto, Japan Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Sho Koyasu
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomomi Nobashi
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tatsuaki Tsuruyama
- Center for Anatomical, Pathological and Forensic Medical Researches, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Date
- Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tatsuo Nakamura
- Department of Bioartificial Organs, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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