1
|
Huang L, Chen X, Yang X, Zhang Y, Qiu X. GelMA-based hydrogel biomaterial scaffold: A versatile platform for regenerative endodontics. J Biomed Mater Res B Appl Biomater 2024; 112:e35412. [PMID: 38701383 DOI: 10.1002/jbm.b.35412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 02/26/2024] [Accepted: 04/13/2024] [Indexed: 05/05/2024]
Abstract
Endodontic therapy, while generally successful, is primarily limited to mature teeth, hence the pressing need to explore regenerative approaches. Gelatin methacryloyl (GelMA) hydrogels have emerged as pivotal biomaterials, promising a bright future for dental pulp regeneration. Despite advancements in tissue engineering and biomaterials, achieving true pulp tissue regeneration remains a formidable task. GelMA stands out for its injectability, rapid gelation, and excellent biocompatibility, serving as the cornerstone of scaffold materials. In the pursuit of dental pulp regeneration, GelMA holds significant potential, facilitating the delivery of stem cells, growth factors, and other vital substances crucial for tissue repair. Presently, in the field of dental pulp regeneration, researchers have been diligently utilizing GelMA hydrogels as engineering scaffolds to transport various effective substances to promote pulp regeneration. However, existing research is relatively scattered and lacks comprehensive reviews and summaries. Therefore, the primary objective of this article is to elucidate the application of GelMA hydrogels as regenerative scaffolds in this field, thereby providing clear direction for future researchers. Additionally, this article provides a comprehensive discussion on the synthesis, characterization, and application of GelMA hydrogels in root canal therapy regeneration. Furthermore, it offers new application strategies and profound insights into future challenges, such as optimizing GelMA formulations to mimic the complex microenvironment of pulp tissue and enhancing its integration with host tissues.
Collapse
Affiliation(s)
| | - Xuan Chen
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - XiaoXia Yang
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Yinchun Zhang
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | | |
Collapse
|
2
|
Yan ZY, Wang F, Han JM, Wu BZ, Guo CB, Cui NH. Alveolar ridge preservation of two-wall bone defects using mineralized dentin matrix: An experimental pre-clinical study. Clin Oral Implants Res 2024; 35:407-418. [PMID: 38287504 DOI: 10.1111/clr.14239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/01/2023] [Accepted: 01/16/2024] [Indexed: 01/31/2024]
Abstract
OBJECTIVES To study bone healing of two-wall bone defects after alveolar ridge preservation using mineralized dentin matrix. MATERIALS AND METHODS After distal roots extraction of second and fourth premolars (P2, P4) on one lateral mandible in 12 beagles, two-wall bone defects (5 × 5 × 5 mm) were surgically created distally to the remaining mesial roots of P2 and P4. A total of 24 sites were randomly allocated to three groups (implant material- time of execution): mineralized dentin matrix (MDM)-3 m (MDM + collagen membrane; 3 months), MDM-6 m (MDM particles + collagen membrane; 6 months), and C-6 m (collagen membrane only; 6 months). Clinical, radiographic, digital, and histological examinations were performed 3 and 6 months after surgery. RESULTS The bone healing in MDM groups were better compared to Control group (volume of bone regenerated in total: 25.12 mm3 vs. 13.30 mm3, p = .046; trabecular volume/total volume: 58.84% vs. 39.18%, p = .001; new bone formation rate: 44.13% vs. 31.88%, p = .047). Vertically, the radiological bone level of bone defect in MDM-6 m group was higher than that in C-6 m group (vertical height of bone defect: 1.55 mm vs. 2.74 mm, p = .018). Horizontally, no significant differences in buccolingual bone width were found between MDM and C groups at any time or at any level below the alveolar ridge. The percentages of remaining MDM were <1% in both MDM-3 m and MDM-6 m groups. CONCLUSIONS MDM improved bone healing of two-wall bone defects and might be considered as a socket fill material used following tooth extraction.
Collapse
Affiliation(s)
- Zi-Yu Yan
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Fei Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jian-Min Han
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing, China
| | - Bin-Zhang Wu
- First Clinical Division, Peking University School and Hospital of Stomatology, Beijing, China
| | - Chuan-Bin Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Nian-Hui Cui
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| |
Collapse
|
3
|
Ohshima H, Mishima K. Oral biosciences: The annual review 2023. J Oral Biosci 2024; 66:1-4. [PMID: 38309695 DOI: 10.1016/j.job.2024.01.011] [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: 01/12/2024] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
BACKGROUND The Journal of Oral Biosciences is dedicated to advancing and disseminating fundamental knowledge with regard to every aspect of oral biosciences. This review features review articles in the fields of "bone regeneration," "periodontitis," "periodontal diseases," "salivary glands," "sleep bruxism," and "Sjögren's syndrome." HIGHLIGHT This review focuses on human demineralized dentin and cementum matrices for bone regeneration, oxidized low-density lipoprotein in periodontal disease and systemic conditions, the relationship between inflammatory mediators in migraine and periodontitis, phosphoinositide signaling molecules in the salivary glands, and the pathophysiologies of sleep bruxism and Sjögren's syndrome. CONCLUSION The review articles featured in the Journal of Oral Biosciences have broadened the knowledge of readers regarding various aspects of oral biosciences. The current editorial review discusses the findings and significance of these review articles.
Collapse
Affiliation(s)
- Hayato Ohshima
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata, 951-8514, Japan.
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| |
Collapse
|
4
|
Guan D, Zhao R, Guo Y, Li J, Ma N, Gong J. Efficacy of autogenous tooth block for lateral ridge augmentation compared with autogenous bone block: A systematic review and meta-analysis. Medicine (Baltimore) 2023; 102:e35326. [PMID: 37773788 PMCID: PMC10545093 DOI: 10.1097/md.0000000000035326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/31/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Autogenous tooth block (ATB) has been used as an alternative material for bone regeneration, but its efficacy compared with autogenous bone block (ABB) remains uncertain. The aim of this systematic review was to investigate and compare the clinical and histological performance of ATB and ABB grafts in lateral alveolar ridge augmentation (LARA). METHODS Electronic retrieval of MEDLINE, Embase, Cochrane Library (CENTRAL), Scopus, Web of Science, China national knowledge infrastructure, Wanfang data, SinoMed, and manual searching until July 2023 were used to identify controlled clinical trials employing ATB grafts in LARA. The identified reports included at least one of the following outcome variables: ridge width gain, graft resorption, postoperative complications, histology, and histomorphometry. Weighted or mean differences (MD), relative risk, and corresponding 95% confidence intervals (CI) were calculated. Descriptive analysis was applied to the qualitative statistics. The protocol followed the preferred reporting items for systematic reviews and meta-analyses statement and was prospectively registered in PROSPERO (CRD42023399611). RESULTS Four controlled clinical trials with 77 participants each using ATB and ABB grafts were included. Meta-analysis indicated that ATB grafts resulted in greater bone width (MD = 1.31, 95% CI [0.92, 1.71], P < .00001) and less graft resorption (MD = -0.71, 95% CI [-1.22, -0.21], P = .005) than ABB grafts on LARA. There was no statistical difference in postoperative complications between ATB and ABB grafts (relative risk = 0.81, 95% CI [0.32, 2.04], P = .66). Furthermore, the ATB grafts exhibited positive replacement resorption with alveolar bone for favorable signs of new bone activity on histology and histomorphometry. CONCLUSION Within the limitations of this study, ATB grafts could serve as an alternative material for ABB to support LARA. Further research with a longer follow-up period is required to verify these findings.
Collapse
Affiliation(s)
- Delin Guan
- The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation Army, Department of Stomatology, Lanzhou City, China
| | - Ruimin Zhao
- The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation Army, Department of Stomatology, Lanzhou City, China
- Quzhou Hospital Affiliated to Wenzhou Medical University (Quzhou People’s Hospital), Department of Stomatology, Quzhou City, China
| | - Yan Guo
- The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation Army, Department of Stomatology, Lanzhou City, China
| | - Jianxue Li
- The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation Army, Department of Stomatology, Lanzhou City, China
| | - Na Ma
- The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation Army, Out-patient department, Lanzhou City, China
| | - Jiaming Gong
- The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation Army, Department of Stomatology, Lanzhou City, China
- Quzhou Hospital Affiliated to Wenzhou Medical University (Quzhou People’s Hospital), Department of Stomatology, Quzhou City, China
| |
Collapse
|
5
|
Heggendorn FL, do Nascimento MB, Lima AM, Ribeiro AA. Demineralized dentin matrix technique - a comparison of different demineralizing solutions. Braz Dent J 2023; 34:72-84. [PMID: 37909644 PMCID: PMC10642266 DOI: 10.1590/0103-6440202305353] [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: 12/17/2022] [Accepted: 07/24/2023] [Indexed: 11/03/2023] Open
Abstract
This study aimed to evaluate the microstructure formed after the chemical treatment of teeth, for the development of autogenous grafts from the demineralized dentin matrix (DDM) technique, in order to identify the most efficient demineralizing solution. The specimens, originating from the root and coronal portion, were submitted to ultrasonic cleaning and drying in an oven for 1h at 100 ºC. Then, the density was determined by Archimedes' principle for each specimen, using distilled water as immersion liquid. The samples were separated into five groups: Control group: negative control, Distilled water;EDTA group: positive control, trisodium EDTA; NaOCl group: 2.5% sodium hypochlorite; HCl-0.6M group: 0.6M hydrochloric acid; and H2O2/H2SO4 group: hydrogen peroxide and sulfuric acid. Each specimen was immersed for 1h in the corresponding group descaling solution at 60 ºC. Subsequently, the mass loss and density of the treated specimens were determined by Archimedes' principle. Ultimately, the specimens of each group were characterized by microtomography, Scanning Electron Microscopy, and Energy Dispersive Spectrometry X-ray (SEM-EDS). The results demonstrated that the H2O2/H2SO4 solution allowed the formation of interconnected micropores, suggesting better pore structures for application in scaffolds, when compared to the other studied solutions.
Collapse
Affiliation(s)
- Fabiano Luiz Heggendorn
- Postgraduate Program in Dentistry (PPGO) at UNIGRANRIO, Street
Prof. José de Souza Herdy, 1,160, block C, 2nd floor - 25th of August - Duque de
Caxias - Rio de Janeiro, Brazil. Zip code 25071-202
| | - Márcio Batista do Nascimento
- Postgraduate Program in Dentistry (PPGO) at UNIGRANRIO, Street
Prof. José de Souza Herdy, 1,160, block C, 2nd floor - 25th of August - Duque de
Caxias - Rio de Janeiro, Brazil. Zip code 25071-202
| | - Andreza Menezes Lima
- Laboratory of Powder Technology, Division of Materials, National
Institute of Technology, N° 82 Venezuela Avenue, Room 602, Zip code 20081-312, Rio
de Janeiro, RJ, Brazil
| | - Alexandre Antunes Ribeiro
- Laboratory of Powder Technology, Division of Materials, National
Institute of Technology, N° 82 Venezuela Avenue, Room 602, Zip code 20081-312, Rio
de Janeiro, RJ, Brazil
| |
Collapse
|
6
|
Human dentin materials for minimally invasive bone regeneration: Animal studies and clinical cases. J Oral Biosci 2023; 65:13-18. [PMID: 36336319 DOI: 10.1016/j.job.2022.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES Bone, platelet concentrate, and tooth-derived dentin/cementum have been used as autologous materials in regenerative medicine Dentin materials were first recycled in 2002 for bone regeneration in humans, although bone autografts were noted in the 19th century, and auto-platelet concentrates were developed in 1998. Dentin/cementum-based material therapy has been applied as an innovative technique for minimally invasive bone surgery, while bone autografts are associated with donor site morbidity. METHODS In October 2021, PubMed, Google Scholar, Scopus, and the Cochrane Library databases from 1980 to 2020 were screened. RESULTS The demineralized dentin/cementum matrix (DDM) had better performance in bone induction and bone regeneration than mineralized dentin. CONCLUSIONS Unlike cell culture therapy, DDM is a matrix-based therapy that includes growth factors. A matrix-based system is a realistic and acceptable treatment, even in developing countries. The aim of this review was to summarize the evidence related to both animal studies and human clinical cases using human dentin materials with a patch of cementum, especially DDM.
Collapse
|
7
|
Wang B, Han F, You R, Chen C, Xie H. Polyphenols Can Improve Resin-Dentin Bond Durability by Promoting Amorphous Calcium Phosphate Nanoparticles to Backfill the Dentin Matrix. Int J Nanomedicine 2023; 18:1491-1505. [PMID: 36998600 PMCID: PMC10046144 DOI: 10.2147/ijn.s395631] [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: 11/07/2022] [Accepted: 03/14/2023] [Indexed: 04/01/2023] Open
Abstract
Objective To investigate the effects of proanthocyanidins (PA), myricetin, resveratrol, and kaempferol on the modification of dentin collagen and the inhibition of matrix metalloproteinase (MMP) activity, and to evaluate their contributions to the biomimetic remineralization and resin-dentin bonding performance. Methods Attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and in situ zymography were applied to verify the collagen modification and MMP activity inhibition induced by these four polyphenols. Scanning electron microscopy/energy dispersive spectrometer (SEM/EDS) analysis, X-ray diffraction (XRD), ATR-FTIR, Vickers hardness numbers (VHN), and micro-computed tomography (micro-CT) were performed to characterize the remineralized dentin. Microtensile bond strength (μTBS) and nanoleakage were investigated to evaluate the effects of the four polyphenols on resin-dentin bonding durability. Results ATR-FTIR and in situ zymography confirmed that these four polyphenols could modify dentin collagen and inhibit MMP activity, respectively. Chemoanalytic characterization exhibited the efficacies of the four polyphenols in promoting dentin biomimetic remineralization. The surface hardness of PA-pretreated dentin was the greatest. Micro-CT results demonstrated that the PAs group possessed the highest amount of dentin surface minerals and the lowest amount of deep-layer minerals. The surface and deep-layer mineral contents of the Myr group were higher than Res and Kae groups. Treatment with these four polyphenols significantly increased the initial μTBS compared with the control group without primer conditioning. μTBS decreased significantly during aging, and the decrease was more severe in the PAs and Kae groups than in the Myr and Res groups. With or without aging, the polyphenol groups exhibited relatively less fluorescence. However, the Myr and Res groups showed less serious nanoleakage after aging. Conclusion PA, myricetin, resveratrol, and kaempferol can modify dentin collagen, inhibit MMP activity, promote biomimetic remineralization, and improve resin-dentin bond durability. Compared with PA and kaempferol, myricetin and resveratrol are more effective in improving resin-dentin bonding.
Collapse
Affiliation(s)
- Beibei Wang
- Department of Prosthodontics, Affiliated Stomatology Hospital, Nanjing Medical University; Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, People’s Republic of China
| | - Fei Han
- Department of Prosthodontics, Affiliated Stomatology Hospital, Nanjing Medical University; Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, People’s Republic of China
| | - Ran You
- Department of Prosthodontics, Affiliated Stomatology Hospital, Nanjing Medical University; Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, People’s Republic of China
| | - Chen Chen
- Department of Endodontics, Affiliated Stomatology Hospital, Nanjing Medical University; Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, People’s Republic of China
| | - Haifeng Xie
- Department of Prosthodontics, Affiliated Stomatology Hospital, Nanjing Medical University; Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, People’s Republic of China
- Correspondence: Haifeng Xie, Affiliated Stomatology Hospital, Nanjing Medical University, Han-Zhong Road 136th, Nanjing, 210029, People’s Republic of China, Tel +8625 69593081, Fax +8625 86516414, Email
| |
Collapse
|
8
|
Kumar N, Maher N, Amin F, Ghabbani H, Zafar MS, Rodríguez-Lozano FJ, Oñate-Sánchez RE. Biomimetic Approaches in Clinical Endodontics. Biomimetics (Basel) 2022; 7:biomimetics7040229. [PMID: 36546929 PMCID: PMC9775094 DOI: 10.3390/biomimetics7040229] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/19/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
In the last few decades, biomimetic concepts have been widely adopted in various biomedical fields, including clinical dentistry. Endodontics is an important sub-branch of dentistry which deals with the different conditions of pulp to prevent tooth loss. Traditionally, common procedures, namely pulp capping, root canal treatment, apexification, and apexigonesis, have been considered for the treatment of different pulp conditions using selected materials. However, clinically to regenerate dental pulp, tissue engineering has been advocated as a feasible approach. Currently, new trends are emerging in terms of regenerative endodontics which have led to the replacement of diseased and non-vital teeth into the functional and healthy dentine-pulp complex. Root- canal therapy is the standard management option when dental pulp is damaged irreversibly. This treatment modality involves soft-tissue removal and then filling that gap through the obturation technique with a synthetic material. The formation of tubular dentine and pulp-like tissue formation occurs when stem cells are transplanted into the root canal with an appropriate scaffold material. To sum up tissue engineering approach includes three components: (1) scaffold, (2) differentiation, growth, and factors, and (3) the recruitment of stem cells within the pulp or from the periapical region. The aim of this paper is to thoroughly review and discuss various pulp-regenerative approaches and materials used in regenerative endodontics which may highlight the current trends and future research prospects in this particular area.
Collapse
Affiliation(s)
- Naresh Kumar
- Department of Science of Dental Materials, Dr. Ishrat Ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi 74200, Pakistan
- Correspondence: ; Tel.: +92-333-2818500
| | - Nazrah Maher
- Department of Science of Dental Materials, Dr. Ishrat Ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi 74200, Pakistan
| | - Faiza Amin
- Department of Science of Dental Materials, Dow Dental College, Dow University of Health Sciences, Karachi 74200, Pakistan
| | - Hani Ghabbani
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah 41311, Saudi Arabia
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah 41311, Saudi Arabia
- Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan
| | | | - Ricardo E. Oñate-Sánchez
- Department of Special Care in Dentistry, Hospital Morales Meseguer, IMIB-Arrixaca, University of Murcia, 30008 Murcia, Spain
| |
Collapse
|
9
|
Murata M, Nakanishi Y, Kusano K, Hirose Y, Tazaki J, Akazawa T, Mizoguchi I. Immediate Tooth Autotransplantation with Root Canal Filling and Partially Demineralized Dentin/Cementum Matrix into Congenital Missing Tooth Region. J Funct Biomater 2022; 13:jfb13020082. [PMID: 35735937 PMCID: PMC9225279 DOI: 10.3390/jfb13020082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 02/01/2023] Open
Abstract
This clinical report describes immediate tooth auto-transplantation with an autograft of partially demineralized dentin/cementum matrix (pDDM), based on an orthodontic treatment plan for a 16-year-old male patient with a congenital missing tooth (#45). First, vital teeth (#14, #24) were extracted, and root canal filling (#14) was immediately performed with the support of a fixation device. Simultaneously, the tooth (#24) was crushed in an electric mill for 1 min, and the crushed granules were partially demineralized in 2% HNO3 solution for 20 min as the graft material. Next, the donor tooth was transplanted into the created socket (#45), and stabilized using an enamel bonding agent. The wet pDDM was loaded into the location of the congenital missing tooth, and the flap was repositioned. The bonding agent for stabilization was removed at 28 days, and also small contact points between the transplanted tooth and the upper premolar (#14) were added using photopolymerizable composite resin. X-ray photos were taken sequentially, and there were no postoperative complications. The radiographic images showed that the periodontal ligament space and alveolar ridge line could be observed at 18 months. The pDDM was harmonized with the mandible, and the remodeled bone-like shadow was observed in the graft region. We concluded that immediate tooth transplantation with root canal fillings and autogenous pDDM may be a valuable alternative to dental implanting or bridge formation for patients with a congenital missing tooth, followed by orthodontic treatment.
Collapse
Affiliation(s)
- Masaru Murata
- Division of Regenerative Medicine, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido 061-0293, Japan;
- Correspondence:
| | - Yasuhiro Nakanishi
- Division of Fixed Prosthodontics and Oral Implantology, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido 061-0293, Japan; (Y.N.); (Y.H.)
| | - Kaoru Kusano
- Department of Oral Implantology, Osaka Dental University, Osaka 573-1121, Japan;
| | - Yukito Hirose
- Division of Fixed Prosthodontics and Oral Implantology, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido 061-0293, Japan; (Y.N.); (Y.H.)
| | - Junichi Tazaki
- Division of Regenerative Medicine, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido 061-0293, Japan;
| | - Toshiyuki Akazawa
- Industrial Technology and Environment Research Development, Hokkaido Research Organization, Hokkaido 060-0819, Japan;
| | - Itaru Mizoguchi
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai 980-8575, Japan;
| |
Collapse
|
10
|
Effect of Gamma Irradiation on the Osteoinductivity of Demineralized Dentin Matrix for Allografts: A Preliminary Study. J Funct Biomater 2022; 13:jfb13010014. [PMID: 35225977 PMCID: PMC8883982 DOI: 10.3390/jfb13010014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/24/2022] [Accepted: 01/27/2022] [Indexed: 12/03/2022] Open
Abstract
Demineralized dentin matrix (DDM) treated with gamma irradiation (GR) has shown promising results as an allograft without any adverse effects in in vivo and clinical studies. The purpose of this study was to evaluate the effects of 15 and 25 kGy GR on the osteoinductive properties of DDM at extra-skeletal sites. As a control group, non-irradiated DDM powder was implanted into the right subcutaneous tissues of the dorsal thigh muscles of 20 nude mice. DDM powder irradiated with 15 and 25 kGy was implanted into the left side. After two and four weeks, the bone mineral density (BMD) was measured with dual-energy X-ray absorptiometry. After confirming osteoblast- and osteoclast-specific activities by alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRAP) staining, a histological analysis was performed to measure the new bone formation and the number of osteoblasts and osteoclast-like cells on the surface of the DDMs. Histomorphometry was used to calculate the new bone formation area on the surface of the DDM particles (DDMs). The BMD in all the groups increased from two and four weeks without statistically significant differences. The osteoblasts were dominantly activated on DDM without GR, and DDM treated with 25 kGy compared to DDM treated with 15 kGy. Among the groups, new bone formation was identified in all the groups at each time point. In conclusion, GR at doses of 15 and 25 kGy does not affect the osteoinductive properties of DDM powder.
Collapse
|
11
|
SEM and FT-MIR Analysis of Human Demineralized Dentin Matrix: An In Vitro Study. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Recently, the demineralized dentin matrix has been suggested as an alternative material to autologous bone grafts and xenografts for clinical purposes. The aim of this study was to investigate the effect of different times of demineralization on the chemical composition and the surface morphology of dentinal particles. Extracted teeth were ground and divided into 5 groups based on demineralization time (T0 = 0 min, T2 = 2 min, T5 = 5 min, T10 = 10 min, and T60 = 60 min) with 12% EDTA. The analysis was performed using Fourier-Transform Mid-Infrared spectroscopy (FT-MIR) and Scanning Electron Microscopy (SEM) (p < 0.05). The FT-MIR analysis showed a progressive reduction of the concentration of both PO43− and CO32− in the specimens (T0 > T2 > T5 > T10 > T60). On the contrary, the organic (protein) component did not undergo any change. The SEM examination showed that increasing the times of demineralization resulted in a smoother surface of the dentin particles and a higher number of dentinal tubules.
Collapse
|
12
|
Okubo N, Ishikawa M, Shakya M, Hosono H, Maehara O, Ohkawara T, Ohnishi S, Akazawa T, Murata M. Autograft of Demineralized Dentin Matrix Prepared Immediately after Extraction for Horizontal Bone Augmentation of the Anterior Atrophic Maxilla: A First Case of Non-Vital Tooth-Derived Dentin. J HARD TISSUE BIOL 2022. [DOI: 10.2485/jhtb.31.47] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Naoto Okubo
- Laboratory of Molecular and Cellular Medicine, Faculty of Pharmaceutical Sciences, Hokkaido University
| | | | - Mamata Shakya
- Division of Oral Regenerative Medicine, School of Dentistry, Health Sciences University of Hokkaido
| | | | - Osamu Maehara
- Laboratory of Molecular and Cellular Medicine, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Tatsuya Ohkawara
- Laboratory of Molecular and Cellular Medicine, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Shunsuke Ohnishi
- Laboratory of Molecular and Cellular Medicine, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Toshiyuki Akazawa
- Industrial Technology and Environment Research Development, Hokkaido Research Organization
| | - Masaru Murata
- Division of Oral Regenerative Medicine, School of Dentistry, Health Sciences University of Hokkaido
| |
Collapse
|
13
|
Zhu B, Yokozeki K, Kabir MA, Todoh M, Akazawa T, Murata M. Chemical Properties of Human Dentin Blocks and Vertical Augmentation by Ultrasonically Demineralized Dentin Matrix Blocks on Scratched Skull without Periosteum of Adult-Aged Rats. MATERIALS 2021; 15:ma15010105. [PMID: 35009252 PMCID: PMC8746034 DOI: 10.3390/ma15010105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 11/26/2022]
Abstract
Vertical augmentation is one of the most challenging techniques in bone engineering. Several parameters, such mechano-chemical characteristics, are important to optimize vertical bone regeneration using biomaterials. The aims of this study were to chemically characterize human dentin blocks (calcified demineralized dentin matrix: CDM, partially demineralized dentin matrix: PDDM and completely demineralized dentin matrix: CDDM) (2 × 2 × 1 mm3) chemically and evaluate the behavior of PDDM blocks on non-scratched or scratched skulls without periosteum of adult rats (10–12 months old, female) as a vertical augmentation model. The dissolved efficiency of CDM showed 32.3% after ultrasonic demineralization in 1.0 L of 2% HNO3 for 30 min. The 30 min-demineralized dentin was named PDDM. The SEM images of PDDM showed the opening of dentinal tubes, nano-microcracks and the smooth surface. In the collagenase digestion test, the weight-decreasing rates of CDM, PDDM and CDDM were 9.2%, 25.5% and 78.3% at 12 weeks, respectively. CDM inhibited the collagenase digestion, compared with PDDM and CDDM. In the PDDM onlay graft on an ultrasonically scratched skull, the bone marrow-space opening from original bone was found in the bony bridge formation between the human PDDM block and dense skull of adult senior rats at 4 and 8 weeks. On the other hand, in the cases of the marrow-space closing in both non-scratched skulls and scratched skulls, the bony bridge was not formed. The results indicated that the ultrasonic scratching into the compact parietal bone might contribute greatly to the marrow-space opening from skull and the supply of marrow cells, and then bony bridge formation could occur in the vertical augmentation model without a periosteum.
Collapse
Affiliation(s)
- Bowen Zhu
- Division of Oral Regenerative Medicine, School of Dentistry, Health Science University of Hokkaido, Kanazawa 061-0293, Japan; (B.Z.); (K.Y.); (M.A.K.)
| | - Kenji Yokozeki
- Division of Oral Regenerative Medicine, School of Dentistry, Health Science University of Hokkaido, Kanazawa 061-0293, Japan; (B.Z.); (K.Y.); (M.A.K.)
| | - Md. Arafat Kabir
- Division of Oral Regenerative Medicine, School of Dentistry, Health Science University of Hokkaido, Kanazawa 061-0293, Japan; (B.Z.); (K.Y.); (M.A.K.)
| | - Masahiro Todoh
- Biomechanical Design Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo 061-0819, Japan;
| | - Toshiyuki Akazawa
- Industrial Technology and Environment Research Development, Hokkaido Research Organization, Kita 19-jo Nishi 11-chome, Kita-ku, Sapporo 060-0819, Japan;
| | - Masaru Murata
- Division of Oral Regenerative Medicine, School of Dentistry, Health Science University of Hokkaido, Kanazawa 061-0293, Japan; (B.Z.); (K.Y.); (M.A.K.)
- Correspondence: ; Tel.: +81-133-23-2921; Fax: +81-133-23-1429
| |
Collapse
|
14
|
Cheah CW, Al-Namnam NM, Lau MN, Lim GS, Raman R, Fairbairn P, Ngeow WC. Synthetic Material for Bone, Periodontal, and Dental Tissue Regeneration: Where Are We Now, and Where Are We Heading Next? MATERIALS 2021; 14:ma14206123. [PMID: 34683712 PMCID: PMC8537464 DOI: 10.3390/ma14206123] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/28/2021] [Accepted: 10/11/2021] [Indexed: 01/21/2023]
Abstract
Alloplasts are synthetic, inorganic, biocompatible bone substitutes that function as defect fillers to repair skeletal defects. The acceptance of these substitutes by host tissues is determined by the pore diameter and the porosity and inter-connectivity. This narrative review appraises recent developments, characterization, and biological performance of different synthetic materials for bone, periodontal, and dental tissue regeneration. They include calcium phosphate cements and their variants β-tricalcium phosphate (β-TCP) ceramics and biphasic calcium phosphates (hydroxyapatite (HA) and β-TCP ceramics), calcium sulfate, bioactive glasses and polymer-based bone substitutes which include variants of polycaprolactone. In summary, the search for synthetic bone substitutes remains elusive with calcium compounds providing the best synthetic substitute. The combination of calcium sulphate and β-TCP provides improved handling of the materials, dispensing with the need for a traditional membrane in guided bone regeneration. Evidence is supportive of improved angiogenesis at the recipient sites. One such product, (EthOss® Regeneration, Silesden, UK) has won numerous awards internationally as a commercial success. Bioglasses and polymers, which have been used as medical devices, are still in the experimental stage for dental application. Polycaprolactone-TCP, one of the products in this category is currently undergoing further randomized clinical trials as a 3D socket preservation filler. These aforementioned products may have vast potential for substituting human/animal-based bone grafts.
Collapse
Affiliation(s)
- Chia Wei Cheah
- Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia; (C.W.C.); (M.N.L.); (G.S.L.)
| | - Nisreen Mohammed Al-Namnam
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4BW, UK;
| | - May Nak Lau
- Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia; (C.W.C.); (M.N.L.); (G.S.L.)
| | - Ghee Seong Lim
- Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia; (C.W.C.); (M.N.L.); (G.S.L.)
| | - Renukanth Raman
- Oral Health Division, Ministry of Health Malaysia, Putrajaya 62590, Malaysia;
| | - Peter Fairbairn
- Department of Periodontology and Implant Dentistry, School of Dentistry, University of Detroit Mercy, 2700 Martin Luther King, Jr. Boulevard, Detroit, MI 48208, USA;
| | - Wei Cheong Ngeow
- Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia; (C.W.C.); (M.N.L.); (G.S.L.)
- Correspondence: ; Tel.: +60-3-79674962; Fax: +60-3-79674534
| |
Collapse
|
15
|
Ku JK, Jeong YK, Um IW. Review of Allogeneic Dentin Graft for Maxillofacial Bone Defects. Tissue Eng Part C Methods 2021; 27:472-480. [PMID: 34375131 DOI: 10.1089/ten.tec.2021.0152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Although autogenous demineralized dentin matrix (auto-DDM) has shown promising clinical and histological results, it has certain limitations beyond its osteoinductivity and osteoconductivity. Therefore, the application of dentin graft material from other individuals-allogeneic DDM (allo-DDM)-has been considered an alternative to auto-DDM. However, few studies have investigated the osteoinductivity and antigenicity of allo-DDM. Herein, we reviewed all human studies related to allogeneic dentin application for the management of maxillofacial bone defects. Clinical studies have shown the osteoinductivity of allo-DDM in extraskeletal and skeletal sites, regardless of occasional antigenicity. Impact statement Although autogenous demineralized dentin matrix (auto-DDM) has shown promising clinical and histological results, it has certain limitations beyond its proven osteoinductivity and osteoconductivity. Therefore, the application of dentin graft material from other individuals-allogeneic DDM (allo-DDM)-has been considered as an alternative to auto-DDM. However, few studies have investigated the osteoinductivity and antigenicity of allo-DDM. This is the first review of all human studies related to allogeneic dentin grafts for the management of maxillofacial bone defects. Clinical studies have shown the osteoinductivity of allo-DDM in extraskeletal and skeletal sites, regardless of occasional antigenicity.
Collapse
Affiliation(s)
- Jeong-Kui Ku
- Department of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Yeong Kon Jeong
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Armed Forces Capital Hospital, Armed Forces Medical Command, Seongnam, Republic of Korea
| | - In-Woong Um
- R&D Institute, Korea Tooth Bank, Seoul, Republic of Korea
| |
Collapse
|
16
|
Bio-Absorption of Human Dentin-Derived Biomaterial in Sheep Critical-Size Iliac Defects. MATERIALS 2021; 14:ma14010223. [PMID: 33466422 PMCID: PMC7796471 DOI: 10.3390/ma14010223] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 11/17/2022]
Abstract
The aim of this study was to evaluate the bio-absorption and bone regeneration of human tooth-derived dentin scaffold, entitled as perforated root-demineralized dentin matrix (PR-DDM), after in vivo implantation into the critical-size iliac defects. The dentin scaffolds were prepared from human vital, non-functional teeth. Thirty artificial macro-pores (Ø 1 mm) were added after removing the enamel portion. The modified teeth were supersonically demineralized in 0.34 N HNO3 for 30 min. The microstructure was observed by scanning electron microscope (SEM). The 3D micro-CT and histological analysis were carried out to evaluate the bio-absorption of PR-DDM at 2 and 4 months. A smooth dentin collagen surface with symmetrical macro-pores and tube-type dentinal tubules (Ø 1–2 µm) with micro-cracks were observed on the perforated region. A significant number of custom-made macro-pores disappeared, and the size of the macro-pores became significantly wider at 4 months compared with the 2 months (p < 0.05) evaluated by 3D micro-CT. Histological images revealed the presence of multinucleated giant cells attached to the scalloped border of the PR-DDM. The morphological changes due to bio-absorption by the cellular phagocytes were comparable to the 3D micro-CT and histological images at 2 and 4 months. Altogether, the results demonstrated that the PR-DDM block was gradually absorbed by multinucleated giant cells and regenerated bone. Human PR-DDM might serve as a unique scaffold for extraoral bone regeneration.
Collapse
|
17
|
Osteoinduction in Novel Micropores of Partially Dissolved and Precipitated Hydroxyapatite Block in Scalp of Young Rats. MATERIALS 2021; 14:ma14010196. [PMID: 33401628 PMCID: PMC7794916 DOI: 10.3390/ma14010196] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/08/2020] [Accepted: 12/30/2020] [Indexed: 12/19/2022]
Abstract
Osteoinduction in muscles by porous ceramics has been reported to be a real phenomenon. In this study, osteoinduction in connective tissues was found in highly porous hydroxyapatite (HAp) ceramics with large specific surface areas. We have developed the combination method of the partial dissolution-precipitation (PDP) technique involving the stirring-supersonic treatment in 1.7 × 10−2 N HNO3 solution containing Ca2+ and PO43− to improve the surface and the bulk of commercially available synthetic HAp block (82.5% in porosity, 50–300 µm in pore size). The modified HAp was named as a partially dissolved and precipitated HAp (PDP-HAp). The PDP-HAp exhibited the porosities of 85–90%, the macropore sizes of 50–200 µm, and the specific surface areas of 1.0–2.0 m2/g, with microcracks. The aim of this study was to observe bone induction by the PDP-HAp with or without BMP-2 in scalp tissues of four-week-old rats. Young rats were divided into the PDP-HAp alone group and the PDP-HAp/BMP-2 group for a long-term observation. In the PDP-HAp group, bone induction occurred inside the many pores at nine months, and the ratio of induced bone was 12.0%. In the PDP-HAp/BMP-2 group, bone induction occurred in almost all pores at three months, and compact bone was found at nine months. The ratios of induced bone were 77.0% at three months and 86.0% at nine months. We believe that osteoinduction by the PDP-HAp might be different from the process of BMP-loaded HAp-induced bone formation, because the PDP-HAp has osteogenic microporous compartments with partially absorbable HAp crystals. The PDP technique may contribute to create bioceramics with osteoinductive property for bone regenerative medicine.
Collapse
|
18
|
Allogeneic Demineralized Dentin Matrix Graft for Guided Bone Regeneration in Dental Implants. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10134661] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Autogenous and allogeneic demineralized dentin matrices (Auto-DDM and Allo-DDM, respectively) are currently used for guided bone regeneration (GBR). Buccal marginal bone (BMB) resorption is critical for successful implant integration. This study analyzed BMB resorption around dental implants for GBR between the control group (Auto-DDM graft) and experimental group (Allo-DDM graft). From 2014 to 2019, we enrolled 96 patients (59 males, 37 females, average 57.13 years) who received GBR (52 and 44 using Allo-DDM and Auto-DDM, respectively,) without a barrier membrane and a simultaneous single dental implantation (54 in the maxilla and 42 in the mandible). BMB height was measured immediately after GBR, at prosthetic loading, and 12 months after loading. BMB resorption was classified as initial resorption (between GBR and prosthetic loading) and functional resorption (during 12 months after prosthetic loading). The differences in the BMB levels of Auto-DDM and Allo-DDM were analyzed between the initial and functional resorption stages by independent sample t-test. Auto-DDM and Allo-DDM showed similar BMB changes in initial resorption (0.73 ± 0.97 and 0.72 ± 0.77 mm, respectively) and functional resorption (0.69 ± 0.81 and 0.48 ± 0.58 mm, respectively) without a significant difference between the maxilla and mandible. For GBR, Allo-DDM is comparable to Auto-DDM in terms of BMB resorption.
Collapse
|
19
|
Um IW, Ku JK, Kim YK, Lee BK, Leem DH. Histological Review of Demineralized Dentin Matrix as a Carrier of rhBMP-2. TISSUE ENGINEERING PART B-REVIEWS 2020; 26:284-293. [PMID: 31928139 PMCID: PMC7310192 DOI: 10.1089/ten.teb.2019.0291] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In 2007, recombinant human bone morphogenetic protein-2 (rhBMP-2) was approved for use in humans at a concentration of 1.5 mg/mL with absorbable collagen sponges as an alternative to autogenous bone grafts for alveolar ridge augmentation, defects associated with extraction sockets, and sinus augmentation. However, the use of supraphysiological doses and the insufficient retention of rhBMP-2, when delivered through collagen sponge, result in dose-dependent side effects related to off-label use. Demineralized dentin matrix (DDM), an osteoinducing bone substrate, has been used as an rhBMP-2 carrier since 1998. In addition, DDM has both microparticle and nanoparticle structures, which do not undergo remodeling, unlike bone. In vitro, DDM is a suitable carrier for BMP-2, with the continued release over 30 days at concentrations sufficient to stimulate osteogenic differentiation. In this review, we discuss the histological outcomes of DDM loaded with rhBMP-2 to highlight the biological functions of exogenous rhBMP-2 associated with the DDM carrier in clinical applications in implant dentistry. Impact Statement Demineralized dentin matrix (DDM) has been used as an recombinant human bone morphogenetic protein (rhBMP-2) carrier and osteo-inducing bone substrate to facilitate continued release and stimulate osteogenic differentiation. In this review, we discuss the histological outcomes of DDM loaded with rhBMP-2 in order to highlight the biological functions of exogenous rhBMP-2 associated with the DDM carrier in clinical applications in implant dentistry.
Collapse
Affiliation(s)
- In-Woong Um
- R&D Institute, Korea Tooth Bank, Seoul, Republic of Korea
| | - Jeong-Kui Ku
- Section of Dentistry, Department of Oral and Maxillofacial Surgery, Armed Forces Capital Hospital, Seongnam, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Seoul Asan Medical Center, Seoul, Republic of Korea
- Address correspondence to: Jeong-Kui Ku, DDS, MMSc, FIBCOMS, Section of Dentistry, Department of Oral and Maxillofacial Surgery, Armed Forces Capital Hospital, 81, Saemaul-ro 117, Bundang-gu, Seongnam 13575, Republic of Korea
| | - Young-Kyun Kim
- Section of Dentistry, Department of Oral and Maxillofacial Surgery, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Bu-Kyu Lee
- Department of Oral and Maxillofacial Surgery, Seoul Asan Medical Center, Seoul, Republic of Korea
| | - Dae Ho Leem
- Department of Oral and Maxillofacial Surgery, School of Dentistry and Institute of Oral Bioscience, Research Institute of Clinical Medicine of Chonbuk National University, Jeonju, Republic of Korea
- Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University, Jeonju, Republic of Korea
| |
Collapse
|
20
|
Tanwatana S, Kiewjurat A, Suttapreyasri S. Chemical and thermal deproteinization of human demineralized tooth matrix: Physicochemical characterization and osteoblast cell biocompatibility. J Biomater Appl 2019; 34:651-663. [PMID: 31364440 DOI: 10.1177/0885328219866039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Sureerat Tanwatana
- Department of Surgery, Faculty of Dentistry, Prince of Songkla University, Songkla, Thailand
| | - Ajchara Kiewjurat
- Department of Surgery, Faculty of Dentistry, Prince of Songkla University, Songkla, Thailand
| | - Srisurang Suttapreyasri
- Department of Surgery, Faculty of Dentistry, Prince of Songkla University, Songkla, Thailand
| |
Collapse
|
21
|
Nano-Structured Demineralized Human Dentin Matrix to Enhance Bone and Dental Repair and Regeneration. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9051013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Demineralized dentin matrix (DDM), derived from human teeth, is an excellent scaffold material with exciting bioactive properties to enhance bone and dental tissue engineering efficacy. In this article, first the nano-structure and bioactive components of the dentin matrix were reviewed. Then the preparation methods of DDM and the resulting properties were discussed. Next, the efficacy of DDM as a bone substitute with in vitro and in vivo properties were analyzed. In addition, the applications of DDM in tooth regeneration with promising results were described, and the drawbacks and future research needs were also discussed. With the extraction of growth factors from DDM and the nano-structural properties of DDM, previous studies also broadened the use of DDM as a bioactive carrier for growth factor delivery. In addition, due to its excellent physical and biological properties, DDM was also investigated for incorporation into other biomaterials design and fabrication, yielding great enhancements in hard tissue regeneration efficacy.
Collapse
|
22
|
Li P, Zhu H, Huang D. Autogenous DDM versus Bio-Oss granules in GBR for immediate implantation in periodontal postextraction sites: A prospective clinical study. Clin Implant Dent Relat Res 2018; 20:923-928. [DOI: 10.1111/cid.12667] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/22/2018] [Accepted: 06/26/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Peng Li
- School of Stomatology and Medicine; Foshan University; Foshan Guangdong P.R. China
| | - HuiCong Zhu
- School of Stomatology and Medicine; Foshan University; Foshan Guangdong P.R. China
| | - DaHong Huang
- School of Stomatology and Medicine; Foshan University; Foshan Guangdong P.R. China
| |
Collapse
|
23
|
Volumetric, Radiographic, and Histologic Analyses of Demineralized Dentin Matrix Combined with Recombinant Human Bone Morphogenetic Protein-2 for Ridge Preservation: A Prospective Randomized Controlled Trial in Comparison with Xenograft. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8081288] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study was to evaluate the clinical, volumetric, radiographic, and histologic aspects of autogenous demineralized dentin matrix (DDM) combined with recombinant human bone morphogenetic protein-2 (rhBMP-2) used for ridge preservation, compared to those of deproteinized bovine bone with collagen (DBBC). Following atraumatic extraction, the socket was filled with DBBC, DDM, or rhBMP-2/DDM. Scanned images of dental casts and cone beam computed tomographs (CBCT) were superimposed for the calculation of soft and hard tissue volume alteration. Preoperative and postoperative measurements of the height and width of the alveolar ridge were compared using CBCT images. After 4 months, bone specimens were harvested for histomorphometric assessment. Loss of hard and soft tissue volume occurred at 4 months after extraction and ridge preservation in all groups. No volumetric differences were detected among the three groups before and 4 months after ridge preservation. The reduction in the horizontal width at 5 mm was higher in the DBBC compared to the DDM. Histologically, approximately 40% newly formed bone was founded in rhBMP-2/DDM group. The autogenous dentin matrix used to fill the socket was as beneficial for ridge preservation as conventional xenografts. The combination of rhBMP-2 with dentin matrix also demonstrated appreciable volumetric stability and higher new bone formation compared to DDM alone and DBBC.
Collapse
|
24
|
Bono N, Tarsini P, Candiani G. BMP-2 and type I collagen preservation in human deciduous teeth after demineralization. J Appl Biomater Funct Mater 2018; 17:2280800018784230. [PMID: 30045659 DOI: 10.1177/2280800018784230] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Great interest has recently been focused on tooth and tooth derivatives as suitable substrates for the treatment of alveolar bone defects. Here, we propose the use of demineralized baby teeth (BT) as potential grafting materials for bone augmentation procedures. METHODS Particles of human BT (Ø < 1 mm) were demineralized by means of a chemical/thermal treatment. Demineralized BT particles were thoroughly characterized by scanning electron microscopy/energy dispersive X-ray analyses to evaluate the effects of the demineralization on BT topography and mineral phase composition, and by enzyme-linked immunosorbent assays (ELISA) to quantify collagen and bone morphogenetic protein-2 (BMP-2) protein contents. The response of SAOS-2 cells to exogenous BMP-2 stimulation was evaluated to identify the minimum BMP-2 concentration able to induce osteodifferentiation in vitro (alkaline phosphatase (ALP) activity). RESULTS The demineralization treatment led to a dramatic decrease in relative Ca and P content (%) of ≈75% with respect to the native BT particles, while preserving native protein conformation and activity. Interestingly, the demineralization process led to a rise in the bioavailability of BMP-2 in BT particles, as compared to the untreated counterparts. The BMP-2 content found in demineralized BT was also proved to be very effective in enhancing ALP activity, thus in the osteodifferentiation of SAOS-2 cells in vitro, as confirmed by cell experiments performed upon exogenously added BMP-2. CONCLUSIONS In this study we demonstrate that the BMP-2 content found in demineralized BT is very effective in inducing cell osteodifferentiation, and strengthens the idea that BTs are very attractive bioactive materials for bone-grafting procedures.
Collapse
Affiliation(s)
- Nina Bono
- 1 Politecnico di Milano Research Unit, National Interuniversity Consortium of Materials Science and Technology - INSTM, Milan, Italy
| | - Paolo Tarsini
- 2 Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milan, Italy
| | - Gabriele Candiani
- 1 Politecnico di Milano Research Unit, National Interuniversity Consortium of Materials Science and Technology - INSTM, Milan, Italy.,2 Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milan, Italy
| |
Collapse
|
25
|
Evaluation of the Healing Potential of Demineralized Dentin Matrix Fixed with Recombinant Human Bone Morphogenetic Protein-2 in Bone Grafts. MATERIALS 2017; 10:ma10091049. [PMID: 28880245 PMCID: PMC5615704 DOI: 10.3390/ma10091049] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 08/30/2017] [Accepted: 09/05/2017] [Indexed: 11/16/2022]
Abstract
We aimed to evaluate the efficacy of demineralized dentin matrix (DDM) fixed with recombinant human bone morphogenetic protein-2 (rhBMP-2) through an experimental and a clinical study. Unilateral upper second and third premolars of eight beagles were extracted. A mucoperiosteal flap was elevated around the extraction socket, and a bone defect was made using a surgical drill. Each DDM was fixed with rhBMP-2, and autogenous bone was grafted at the bone defect area with a collagenous membrane. The beagles were euthanized at two, four, eight, and 12 weeks after receiving the bone graft. Block specimens involving grafted bone and surrounding natural bone were extracted. A total of 23 patients who received bone grafts using human DDM fixed with rhBMP-2 (AutoBT BMP) with implant placements (36 implants; maxilla: 14, mandible: 22) were selected. The implant stability, marginal bone loss, and clinical outcome were evaluated. Three trephine cores were harvested fourmonths after bone grafting, and histologic examination was performed. In the histological evaluation performed four weeks after the bone graft, autogenous bone showed 52% new bone formation and DDM fixed with rhBMP-2 showed 33% new bone formation. Twelve weeks after the bone graft, autogenous bone showed 75% new bone formation and DDM fixed with rhBMP-2 showed 48% new bone formation. In the clinical study, favorable osseointegration was obtained in 35 out of 36 implant sites (one case of osseointegration failure). In all cases, severe complications were not observed. Histomorphometrically, new bone formation was observed in 14.98% of the cases. The residual DDM particles were 6.22%. AutoBT BMP provides good osteoinductive and osteoconductive potential and clinical efficacy.
Collapse
|
26
|
Park SM, Kim DH, Pang EK. Bone formation of demineralized human dentin block graft with different demineralization time: In vitro and in vivo study. J Craniomaxillofac Surg 2017; 45:903-912. [DOI: 10.1016/j.jcms.2017.03.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/18/2017] [Accepted: 03/15/2017] [Indexed: 11/25/2022] Open
|
27
|
Abstract
Root canal therapy has enabled us to save numerous teeth over the years. The most desired outcome of endodontic treatment would be when diseased or nonvital pulp is replaced with healthy pulp tissue that would revitalize the teeth through regenerative endodontics. ‘A search was conducted using the Pubmed and MEDLINE databases for articles with the criteria ‘Platelet rich plasma’, ‘Platelet rich fibrin’, ‘Stem cells’, ‘Natural and artificial scaffolds’ from 1982–2015’. Tissues are organized as three-dimensional structures, and appropriate scaffolding is necessary to provide a spatially correct position of cell location and regulate differentiation, proliferation, or metabolism of the stem cells. Extracellular matrix molecules control the differentiation of stem cells, and an appropriate scaffold might selectively bind and localize cells, contain growth factors, and undergo biodegradation over time. Different scaffolds facilitate the regeneration of different tissues. To ensure a successful regenerative procedure, it is essential to have a thorough and precise knowledge about the suitable scaffold for the required tissue. This article gives a review on the different scaffolds providing an insight into the new developmental approaches on the horizon.
Collapse
Affiliation(s)
- Kinjal M Gathani
- Department of Conservative Dentistry and Endodontics, Sinhgad Dental College and Hospital, Pune, Maharashtra, India
| | - Srinidhi Surya Raghavendra
- Department of Conservative Dentistry and Endodontics, Sinhgad Dental College and Hospital, Pune, Maharashtra, India
| |
Collapse
|
28
|
Qin X, Zou F, Chen W, Xu Y, Ma B, Huang Z, Zhu G, Zhou B. Demineralized Dentin as a Semi-Rigid Barrier for Guiding Periodontal Tissue Regeneration. J Periodontol 2015; 86:1370-9. [PMID: 26317665 DOI: 10.1902/jop.2015.150271] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Guided tissue regeneration (GTR) is an accepted approach in the correction of periodontal bone loss. Nonetheless, the deficiencies of commonly applied absorbable membrane, such as flexibility and limited osteoconductive and osteoinductive capability, still leave much room for improvement. Thus, the feasibility of applying demineralized dentin tissue to improve the therapeutic effect of GTR in periodontal regeneration was explored. METHODS Demineralized dentin was harvested after acid treatment, and its physiochemical properties were assessed in terms of mineralization density, contact angle, three-point test, and cell attachment. Because of its similar characteristics with bone tissue, dentin that had been acid-treated for 6 hours was chosen to repair a periodontal defect using an induced-periodontitis canine model. Histologic measurements were taken to compare its therapeutic effects to an absorbable membrane group and an untreated group. RESULTS The demineralized dentin displayed continually decreased hardness and density as the acid etching time was prolonged. Enhanced attachment and spreading of bone marrow mesenchymal stem cells were observed on the 6-hour processed dentin. Furthermore, in the demineralized dentin group, more periodontal tissues were newly formed compared with the biomembrane and untreated groups. CONCLUSION Acid etching represents an easy and promising approach to obtain demineralized dentin with desirable properties, similar to bone, for clinical application to promote periodontal tissue regeneration.
Collapse
Affiliation(s)
- Xu Qin
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Zou
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weimin Chen
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiwen Xu
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Ma
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhibin Huang
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guangxun Zhu
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bin Zhou
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
29
|
Kim BS, Kim JS, Yang SS, Kim HW, Lim HJ, Lee J. Angiogenin-loaded fibrin/bone powder composite scaffold for vascularized bone regeneration. Biomater Res 2015; 19:18. [PMID: 26331087 PMCID: PMC4552407 DOI: 10.1186/s40824-015-0040-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 08/04/2015] [Indexed: 11/24/2022] Open
Abstract
Background Angiogenin (ANG) is a potent stimulator of angiogenesis. The aim of this study was to fabricate an ANG-loaded scaffold and to evaluate its angiogenic and osteogenic effects. In this study, we fabricated an ANG-loaded scaffold using bovine bone powder and fibrin glue. We then evaluated the structural, morphological, and mechanical properties of the scaffold and the in vitro release profile of ANG. Cell proliferation, viability, and adhesion were evaluated using endothelial cells in vitro, and angiogenesis and new bone formation were evaluated using a rabbit calvarial defect model in vivo. Results Micro-computed tomography imaging showed that the bone powder was uniformly distributed in the scaffold, and scanning electron microscopy showed that the bone powder was bridged by polymerized fibrin. The porosity and compressive strength of the scaffolds were ~60 % and ~0.9 MPa, respectively, and were not significantly altered by ANG loading. In vitro, at 7 days, approximately 0.4 μg and 1.3 μg of the ANG were released from the FB/ANG 0.5 and FB/ANG 2.0, respectively and sustained slow release was observed until 25 days. The released ANG stimulated cell proliferation and adherence and was not cytotoxic. Furthermore, in vivo implantation resulted in enhanced angiogenesis, and new bone formation depended on the amount of loaded ANG. Conclusions These studies demonstrate that a fibrin and bone powder scaffold loaded with ANG might be useful to promote bone regeneration by enhanced angiogenesis.
Collapse
Affiliation(s)
- Beom-Su Kim
- Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, 570-749 Korea ; Bonecell Biotech Inc., Dunsan-dong, Seo-gu, Daejeon, 302-830 Korea
| | - Jin-Seong Kim
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, 369-873 Korea
| | - Sun-Sik Yang
- Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, 570-749 Korea
| | - Hyung-Woo Kim
- Department of Dentistry, Oral and Maxillofacial, Wonkwang University, Iksan, 570-749 Korea
| | - Hun Jun Lim
- Department of Dentistry, Oral and Maxillofacial, Wonkwang University, Iksan, 570-749 Korea
| | - Jun Lee
- Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, 570-749 Korea ; Bonecell Biotech Inc., Dunsan-dong, Seo-gu, Daejeon, 302-830 Korea ; Department of Dentistry, Oral and Maxillofacial, Wonkwang University, Iksan, 570-749 Korea
| |
Collapse
|
30
|
Kim YK, Um IW, Cho WJ, Murata M, Jun SH, Lee JK. Applications of Moldable Autogenous Tooth Bone Graft (M-AutoBT) Mixed with Hydroxypropylmethyl Cellulose for Sinus Lifting. J HARD TISSUE BIOL 2015. [DOI: 10.2485/jhtb.24.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Young-Kyun Kim
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital
| | | | | | - Masaru Murata
- Division of Oral and Maxillofacial Surgery, School of Dentistry, Health Sciences University of Hokkaido
| | - Sang-Ho Jun
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, Korea University Anam Hospital
| | - Jeong-Keun Lee
- Department of Oral and Maxillofacial Surgery, Medical Center, Ajou University
| |
Collapse
|
31
|
Kim YK, Yun PY, Um IW, Lee HJ, Yi YJ, Bae JH, Lee J. Alveolar ridge preservation of an extraction socket using autogenous tooth bone graft material for implant site development: prospective case series. J Adv Prosthodont 2014; 6:521-7. [PMID: 25551013 PMCID: PMC4279052 DOI: 10.4047/jap.2014.6.6.521] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 06/05/2014] [Accepted: 08/25/2014] [Indexed: 11/16/2022] Open
Abstract
This case series evaluated the clinical efficacy of autogenous tooth bone graft material (AutoBT) in alveolar ridge preservation of an extraction socket. Thirteen patients who received extraction socket graft using AutoBT followed by delayed implant placements from Nov. 2008 to Aug. 2010 were evaluated. A total of fifteen implants were placed. The primary and secondary stability of the placed implants were an average of 58 ISQ and 77.9 ISQ, respectively. The average amount of crestal bone loss around the implant was 0.05 mm during an average of 22.5 months (from 12 to 34 months) of functional loading. Newly formed tissues were evident from the 3-month specimen. Within the limitations of this case, autogenous tooth bone graft material can be a favorable bone substitute for extraction socket graft due to its good bone remodeling and osteoconductivity.
Collapse
Affiliation(s)
- Young-Kyun Kim
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea. ; Department of Dentistry and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Pil-Young Yun
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - In-Woong Um
- R&D Department, Korea Tooth Bank, Seoul, Republic of Korea
| | - Hyo-Jung Lee
- Department of Periodontology, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Yang-Jin Yi
- Department of Prosthodontics, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Ji-Hyun Bae
- Department of Conservative Dentistry, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Junho Lee
- Department of Periodontology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
32
|
Lee JY, Kim YK, Yi YJ, Choi JH. Clinical evaluation of ridge augmentation using autogenous tooth bone graft material: case series study. J Korean Assoc Oral Maxillofac Surg 2013; 39:156-60. [PMID: 24471036 PMCID: PMC3858125 DOI: 10.5125/jkaoms.2013.39.4.156] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 08/07/2013] [Accepted: 08/08/2013] [Indexed: 11/30/2022] Open
Abstract
Objectives Interest in bone graft material has increased with regard to restoration in cases of bone defect around the implant. Autogenous tooth bone graft material was developed and commercialized in 2008. In this study, we evaluated the results of vertical and horizontal ridge augmentation with autogenous tooth bone graft material. Materials and Methods This study targeted patients who had vertical or horizontal ridge augmentation using AutoBT from March 2009 to April 2010. We evaluated the age and gender of the subject patients, implant stability, adjunctive surgery, additional bone graft material and barrier membrane, post-operative complication, implant survival rate, and crestal bone loss. Results We performed vertical and horizontal ridge augmentation using powder- or block-type autogenous tooth bone graft material, and implant placement was performed on nine patients (male: 7, female: 2). The average age of patients was 49.88±12.98 years, and the post-operative follow-up period was 35±5.31 months. Post-operative complications included wound dehiscence (one case), hematoma (one case), and implant osseointegration failure (one case; survival rate: 96%); however, there were no complications related to bone graft material, such as infection. Average marginal bone loss after one-year loading was 0.12±0.19 mm. Therefore, excellent clinical results can be said to have been obtained. Conclusion Excellent clinical results can be said to have been obtained with vertical and horizontal ridge augmentation using autogenous tooth bone graft material.
Collapse
Affiliation(s)
- Ji-Young Lee
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Young-Kyun Kim
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea. ; School of Dentistry, Seoul National University, Seoul, Korea
| | - Yang-Jin Yi
- Department of Prosthodontics, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea
| | | |
Collapse
|
33
|
de Oliveira GS, Miziara MN, Silva ERD, Ferreira EL, Biulchi APF, Alves JB. Enhanced bone formation during healing process of tooth sockets filled with demineralized human dentine matrix. Aust Dent J 2013; 58:326-32. [PMID: 23981214 DOI: 10.1111/adj.12088] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 11/07/2012] [Accepted: 11/26/2012] [Indexed: 11/30/2022]
Abstract
BACKGROUND Orthodontic procedures are often limited by the presence of bone defects caused by trauma, periodontal diseases or surgeries, thus requiring the development of materials capable to compensate such deficiencies. Since bone morphogenetic proteins (BMPs) are indicative of bone reconstitution, this study aimed to evaluate histological and immunohistochemically the temporal location of BMP-2 and BMP-4 in osteoblasts of rat alveolar wounds filled with demineralized human dentine matrix (DHDM), used as a graft material. METHODS After extraction of the upper second molars, the left side alveoli were filled with DHDM and the right side served as the control. The animals were euthanized after 3, 5, 10 and 14 days of surgery. After fixation, demineralization and paraffin embedding, representative samples of each group were stained with H&E and immunohistochemically evaluated. RESULTS The data showed a statistically significant (p < 0.05) increased number of osteoblasts positively immunostained for BMP-2 and BMP-4 on the experimental side (left) at 10 days. Our results also showed that even when not degraded, dentine matrix was incorporated to new bone formation after 14 days of surgery. CONCLUSIONS The results suggest that DHDM acts as a scaffold for osteoblast differentiation, actively yielding new bone formation, and it may represent an effective bone implant material.
Collapse
Affiliation(s)
- G S de Oliveira
- Orthodontics Department, Dentistry Course, Faculdade São Lucas, Porto Velho, Brazil
| | | | | | | | | | | |
Collapse
|
34
|
Kim YK, Lee J, Um IW, Kim KW, Murata M, Akazawa T, Mitsugi M. Tooth-derived bone graft material. J Korean Assoc Oral Maxillofac Surg 2013; 39:103-11. [PMID: 24471027 PMCID: PMC3858164 DOI: 10.5125/jkaoms.2013.39.3.103] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 05/01/2013] [Accepted: 05/28/2013] [Indexed: 02/02/2023] Open
Abstract
With successful extraction of growth factors and bone morphogenic proteins (BMPs) from mammalian teeth, many researchers have supported development of a bone substitute using tooth-derived substances. Some studies have also expanded the potential use of teeth as a carrier for growth factors and stem cells. A broad overview of the published findings with regard to tooth-derived regenerative tissue engineering technique is outlined. Considering more than 100 published papers, our team has developed the protocols and techniques for processing of bone graft material using extracted teeth. Based on current studies and studies that will be needed in the future, we can anticipate development of scaffolds, homogenous and xenogenous tooth bone grafts, and dental restorative materials using extracted teeth.
Collapse
Affiliation(s)
- Young-Kyun Kim
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea
| | | | | | - Kyung-Wook Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University, Cheonan, Korea
| | - Masaru Murata
- Department of Oral and Maxillofacial Surgery, Health Sciences University of Hokkaido, Sapporo, Japan
| | - Toshiyuki Akazawa
- Department of Industrial Technology Research, Hokkaido Industrial Research Institute, Sapporo, Japan
| | | |
Collapse
|