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Zhang Q, Gao S, Li B, Li Q, Li X, Cheng J, Peng Z, Liang J, Zhang K, Hai J, Zhang B. Lithium-Doped Titanium Dioxide-Based Multilayer Hierarchical Structure for Accelerating Nerve-Induced Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2024; 16. [PMID: 38663861 PMCID: PMC11082843 DOI: 10.1021/acsami.4c01520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/09/2024] [Accepted: 04/09/2024] [Indexed: 05/12/2024]
Abstract
Despite considerable advances in artificial bone tissues, the absence of neural network reconstruction in their design often leads to delayed or ineffective bone healing. Hence, we propose a multilayer hierarchical lithium (Li)-doped titanium dioxide structure, constructed through microarc oxidation combined with alkaline heat treatment. This structure can induce the sustained release of Li ions, mimicking the environment of neurogenic osteogenesis characterized by high brain-derived neurotrophic factor (BDNF) expression. During in vitro experiments, the structure enhanced the differentiation of Schwann cells (SCs) and the growth of human umbilical vein endothelial cells (HUVECs) and mouse embryo osteoblast progenitor cells (MC3T3-E1). Additionally, in a coculture system, the SC-conditioned media markedly increased alkaline phosphatase expression and the formation of calcium nodules, demonstrating the excellent potential of the material for nerve-induced bone regeneration. In an in vivo experiment based on a rat distal femoral lesion model, the structure substantially enhanced bone healing by increasing the density of the neural network in the tissue around the implant. In conclusion, this study elucidates the neuromodulatory pathways involved in bone regeneration, providing a promising method for addressing bone deformities.
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Affiliation(s)
- Qianqian Zhang
- School
(Hospital) of Stomatology, Lanzhou University, Lanzhou 730000, China
| | - Shuting Gao
- Dental
Materials Science, Applied Oral Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong 999077, China
| | - Bo Li
- The
Third Affiliated Hospital of AFMU, Air Force
Medical University, Xi’an 710000, China
| | - Qian Li
- School
(Hospital) of Stomatology, Lanzhou University, Lanzhou 730000, China
| | - Xinjie Li
- School
(Hospital) of Stomatology, Lanzhou University, Lanzhou 730000, China
| | - Jingyang Cheng
- Suzhou
Huaxia Stomatological Hospital, Su Zhou 215000, China
| | - Zhenjun Peng
- State
Key Laboratory of Solid Lubrication, Chinese Academy of Sciences, Lanzhou Institute of Chemical Physics, Lanzhou 730000, China
| | - Jun Liang
- Research
Institute of Interdisciplinary Science, Dongguan University of Technology, Dongguan 523808, China
| | - Kailiang Zhang
- School
(Hospital) of Stomatology, Lanzhou University, Lanzhou 730000, China
| | - Jun Hai
- CAS
Key Laboratory of Chemistry of Northwestern Plant Resources and Key
Laboratory of Natural Medicine of Gansu Province, Chinese Academy
of Sciences, Lanzhou Institute of Chemical
Physics, Lanzhou 730000, China
| | - Baoping Zhang
- School
(Hospital) of Stomatology, Lanzhou University, Lanzhou 730000, China
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2
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Wang J, Li W, He X, Li S, Pan H, Yin L. Injectable platelet-rich fibrin positively regulates osteogenic differentiation of stem cells from implant hole via the ERK1/2 pathway. Platelets 2023; 34:2159020. [PMID: 36644947 DOI: 10.1080/09537104.2022.2159020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Bone regeneration in dentistry is a dynamic approach for treating critical size bone defects that are unlikely to self-heal. Human bone marrow stem cell (hBMSCs) therapies are being tested clinically for various disorders and have remarkable clinical advancements in bone regeneration. Injectable platelet-rich fibrin (i-PRF), which is obtained from autologous blood centrifuged at 700 rpm (60 G) for 3 min can promote osteogenic differentiation of this cell, but the mechanism remains unclear. The objectives of this study were to explore the contents of i-PRF further and investigate its effect on the cell behavior of hBMSCs and the underlying molecular mechanisms. The results showed that i-PRF contained 41 cytokines, including macrophage colony-stimulating factor (M-CSF) and β-nerve growth factor (β-NGF), which had not been reported before. The Cell Counting Kit-8 and wound healing assay showed that 10% and 20% i-PRF improved the proliferation rate and the migration capacity of hBMSCs without toxicity to cells. Besides, the expression of osteogenic markers and the capacity to form mineralized nodules of hBMSCs were promoted by 20% i-PRF. Furthermore, i-PRF activated the ERK pathway, and the ERK inhibitor attenuated its effects. In summary, i-PRF promotes hBMSCs proliferation and migration and facilitates cell osteogenesis through the ERK pathway, which has promising potential in bone regeneration.
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Affiliation(s)
- Jia Wang
- Department of Implantology, School/Hospital of Stomatology Lanzhou University, Lanzhou, China
| | - Wanxin Li
- Department of Implantology, School/Hospital of Stomatology Lanzhou University, Lanzhou, China
| | - Xuxia He
- Department of Implantology, School/Hospital of Stomatology Lanzhou University, Lanzhou, China
| | - Simei Li
- Department of Implantology, School/Hospital of Stomatology Lanzhou University, Lanzhou, China
| | - Hongwei Pan
- Department of Implantology, School/Hospital of Stomatology Lanzhou University, Lanzhou, China
| | - Lihua Yin
- Department of Implantology, School/Hospital of Stomatology Lanzhou University, Lanzhou, China
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3
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Li J, Xue S, Liu Z, Yao D, Ting J. Distribution of mature and newly regenerated nerve fibers after tooth extraction and dental implant placement: an immunohistological study. J Oral Rehabil 2022; 49:796-805. [PMID: 35576051 DOI: 10.1111/joor.13338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 04/07/2022] [Accepted: 05/10/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND The time-dependent peri-implant innervation needs to be elucidated in detail. OBJECTIVES To examine the distribution of mature and newly regenerated nerves around the implant with immunofluorescence during 28-days follow-up after implantation. METHODS 35 male Sprague-Dawley rats were grouped into non-operated(n=5), extraction(n=5), and implant(n=25) groups. For rats in the extraction and implant groups, three right maxillary molars were extracted. One month later, a titanium implant was placed into the healed alveolar ridge in the implant group. The implant group was further divided into 5 subgroups according to day 1, 3, 7, 14, or 28 after implantation, on which day serial histological sections were prepared for immunohistochemistry. On day 28, the serial sections were also prepared in the non-operated and extraction groups. Soluble protein-100 and growth-associated protein-43 were used to immunolabel mature and newly regenerated nerve fibers respectively. RESULTS In the peri-implant soft tissues, the number of both mature and newly regenerated nerves showed an increasing trend in 28 days. In the bone tissues, the number of mature or newly regenerated nerves in both areas at less than 100 μm and 100-200 μm from the implant surface on day 28 grew significantly compared with that on day 1 or 3. In addition, the closest distance from mature nerves to the implant surface decreased evidently. CONCLUSION The number of peri-implant nerves increased in 28 days since implantation. The innervation in the soft tissue took place faster than in the bone tissue. The mature nerves in the bone tissue approached the implant gradually.
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Affiliation(s)
- Jian Li
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, P.R. China
| | - Shenghao Xue
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, P.R. China
| | - Zhongning Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, P.R. China
| | - Dongyuan Yao
- Neurological Institute of Jiangxi Province and Department of Neurology, Jiangxi Provincial People's Hospital, Nanchang Medical College, Jiangxi, P.R. China
| | - Jiang Ting
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, P.R. China
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4
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Li S, Yang H, Duan Q, Bao H, Li A, Li W, Chen J, He Y. A comparative study of the effects of platelet-rich fibrin, concentrated growth factor and platelet-poor plasma on the healing of tooth extraction sockets in rabbits. BMC Oral Health 2022; 22:87. [PMID: 35321697 PMCID: PMC8944061 DOI: 10.1186/s12903-022-02126-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/16/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Autologous platelet concentrate has been widely used to encourage the regeneration of hard and soft tissues. Up to now, there are three generations of autologous platelet concentrates. Many studies have shown that the three autologous concentrates have different effects, but the specific diversities have not been studied. The purpose of this study was to explore and compare the effects of platelet-rich fibrin, concentrated growth factor and platelet-poor plasma on the healing of tooth extraction sockets in New Zealand rabbits. METHODS A total of 24 healthy male New Zealand white rabbits aged 8-12 weeks were selected. The experimental animals were randomly divided into four groups: three experimental groups were respectively implanted with PPP, CGF and PRF gel after bilateral mandibular anterior teeth were extracted, and the control group did not implant any material. The alveolar bone of the mandibular anterior region was taken at 2, 4 and 8 weeks after operation. The height and width of the extraction wound were detected by CBCT, the growth of the new bone was observed by HE and Masson staining, and the expression of osteogenic genes was detected by real-time PCR. Data were analyzed using IBM SPSS statistical package 22.0. RESULTS The radiological results showed that alveolar bone resorption in all groups gradually increased over time. However, the experimental groups showed lower amounts of bone resorption. The histological results showed that new bone formation was observed in all groups. Over time, the new bone trabeculae of the CGF group became closely aligned while those in the PPP and PRF groups remained scattered. PCR results showed that the expression of BMP-2 and ALP was higher in the experimental groups than the control group. CONCLUSION In conclusion, the application of PRF, CGF and PPP in tooth extraction sockets effectively promoted bone regeneration. CGF showed more effective bone induction and tissue regeneration ability in the long term.
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Affiliation(s)
- Siying Li
- Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, China
| | - Hongyi Yang
- Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, China
| | - Qinyu Duan
- Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, China
| | - Hongyu Bao
- Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Aodi Li
- Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, China
| | - Wei Li
- Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, China
| | - Junliang Chen
- Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Yun He
- Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, China.
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.
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5
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Song D, Shujaat S, Constantinus P, Orhan K, Jacobs R. Osseoperception following dental implant treatment: a systematic review. J Oral Rehabil 2021; 49:573-585. [PMID: 34911146 DOI: 10.1111/joor.13296] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/18/2021] [Accepted: 12/07/2021] [Indexed: 12/09/2022]
Abstract
OBJECTIVES Osseoperception is defined as the ability to perceive tactile sensation via mechanoreception in the peri-implant environment. The objective was to systematically review the available literature on the osseoperception phenomenon following dental implant placement and to explore potential factors which might improve the perception capacity. MATERIAL AND METHODS A literature search was performed using PubMed, Cochrane, Embase, and Web of Science databases up to June 2021. Both human and animal studies assessing sensory capacity or innervation following implant placement were included in this review. Two reviewers independently performed the study selection, data extraction and quality assessment of the included studies. The methodological quality of the included papers was assessed using Cochrane risk of bias for human studies and SYRCLE's risk of bias tool for animal studies. RESULTS The electronic search of databases yielded 1667 results. Following removal of duplicates, title and abstract screening and full-text reading, 22 publications were eligible to be included in the review. Psychophysical evidence from 14 studies indicated a lower tactile function of implants, where active and passive threshold level were found to be 5 and 50 times higher for implants compared to natural teeth, respectively. The neurophysiological evidence from 3 studies indicated cortical plasticity following dental implant placement, measured via trigeminal nerve evoked potentials and functional magnetic resonance imaging. Histological evidence from 5 studies demonstrated the presence of myelinated nerve fibres in the peri-implant tissues. Additionally, immediate implant placement and loading showed beneficial effect on peri-implant tissue (re)innervation, however, no other biological or physiological factors could be identified influencing osseoperception. CONCLUSIONS The reported evidence supported the existence of so-called osseoperception phenomenon for restoring the sensory feedback pathway following oral implant rehabilitation. Further studies are required to identify factors that might further assist physiological integration of the oral implants in the human body as such to approach natural oral function.
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Affiliation(s)
- Dandan Song
- OMFS IMPATH research group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Sohaib Shujaat
- OMFS IMPATH research group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Politis Constantinus
- OMFS IMPATH research group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Kaan Orhan
- Department of DentoMaxillofacial Radiology, Faculty of Dentistry, University of Ankara, Ankara, Turkey
| | - Reinhilde Jacobs
- OMFS IMPATH research group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.,Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
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6
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Blanc-Sylvestre N, Bouchard P, Chaussain C, Bardet C. Pre-Clinical Models in Implant Dentistry: Past, Present, Future. Biomedicines 2021; 9:1538. [PMID: 34829765 PMCID: PMC8615291 DOI: 10.3390/biomedicines9111538] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/11/2021] [Accepted: 10/15/2021] [Indexed: 12/23/2022] Open
Abstract
Biomedical research seeks to generate experimental results for translation to clinical settings. In order to improve the transition from bench to bedside, researchers must draw justifiable conclusions based on data from an appropriate model. Animal testing, as a prerequisite to human clinical exposure, is performed in a range of species, from laboratory mice to larger animals (such as dogs or non-human primates). Minipigs appear to be the animal of choice for studying bone surgery around intraoral dental implants. Dog models, well-known in the field of dental implant research, tend now to be used for studies conducted under compromised oral conditions (biofilm). Regarding small animal models, research studies mostly use rodents, with interest in rabbit models declining. Mouse models remain a reference for genetic studies. On the other hand, over the last decade, scientific advances and government guidelines have led to the replacement, reduction, and refinement of the use of all animal models in dental implant research. In new development strategies, some in vivo experiments are being progressively replaced by in vitro or biomaterial approaches. In this review, we summarize the key information on the animal models currently available for dental implant research and highlight (i) the pros and cons of each type, (ii) new levels of decisional procedures regarding study objectives, and (iii) the outlook for animal research, discussing possible non-animal options.
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Affiliation(s)
- Nicolas Blanc-Sylvestre
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Department of Periodontology, Rothschild Hospital, European Postgraduate in Periodontology and Implantology, Université de Paris, 75012 Paris, France
| | - Philippe Bouchard
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Department of Periodontology, Rothschild Hospital, European Postgraduate in Periodontology and Implantology, Université de Paris, 75012 Paris, France
| | - Catherine Chaussain
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, Dental Medicine Department, Bretonneau Hospital, GHN-Université de Paris, 75018 Paris, France
| | - Claire Bardet
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
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7
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Local application of the osteogenic inducer sustained-release system promotes early bone remodeling around titanium implants. Int J Oral Maxillofac Surg 2021; 51:558-565. [PMID: 34452805 DOI: 10.1016/j.ijom.2021.08.013] [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: 02/11/2021] [Revised: 05/20/2021] [Accepted: 08/12/2021] [Indexed: 11/20/2022]
Abstract
Enhanced osseointegration and a shortened healing time are required for dental implant treatment. The aim of this study was to evaluate whether topical application of the osteogenic inducer (OI) sustained-release system over the implant promotes early bone remodeling around the implant. The mandibular canines of 15 New Zealand White rabbits were extracted. After 3 months of healing, implants coated with poly(lactic-co-glycolic acid) (PLGA)+OI, PLGA alone, or no material (control) were inserted into the canine sites. After 4 weeks, specimens were harvested from the three groups and evaluated. Implant stability recorded by Periotest revealed significantly higher values for the PLGA + OI group (-2.61 ± 0.43) than for the PLGA (-1.47 ± 0.45) and control groups (-1.08 ± 0.19) (P < 0.001). Moreover, the PLGA+OI group had improved bone volume and structural parameters around the implants at 4 weeks, as shown by significantly increased BV/TV, BSA/BV, Tb.Th, and BIC (P < 0.05), as well as decreased Tb.Sp (P = 0.010) compared with the other groups. The histological results showed more trabecular bone and bone matrix around the implants in the PLGA+OI group. Therefore, local application of the OI sustained-release system might be able to promote early bone remodeling around titanium implants and facilitate faster and better osseointegration.
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8
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Song D, Shujaat S, de Faria Vasconcelos K, Huang Y, Politis C, Lambrichts I, Jacobs R. Diagnostic accuracy of CBCT versus intraoral imaging for assessment of peri-implant bone defects. BMC Med Imaging 2021; 21:23. [PMID: 33568085 PMCID: PMC7877020 DOI: 10.1186/s12880-021-00557-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/01/2021] [Indexed: 01/28/2023] Open
Abstract
Background Early detection of marginal bone loss is vital for treatment planning and prognosis of teeth and implant. This study was conducted to assess diagnostic accuracy of CBCT compared to intra-oral (IO) radiography for detection, classification, and measurement of peri-implant bone defects in an animal model. Methods Fifty-four mandible blocks with implants were harvested from nine male health adult beagle dogs with acquisition of IO, CBCT and micro-CT images from all samples. Peri-implant bone defects from 16 samples were diagnosed using micro-CT and classified into 3 defect categories: dehiscence (n = 5), infrabony defect (n = 3) and crater-like defect (n = 8). Following training and calibration of the observers, they asked to detect location (mesial, distal, buccal, lingual) and shape of the defect (dehiscence, horizontal defect, vertical defect, carter-like defect) utilizing both IO and CBCT images. Both observers assessed defect depth and width on IO, CBCT and micro-CT images at each side of peri-implant bone defect via CT-analyzer software. Data were analyzed using SPSS software and a p value of < 0.05 was considered as statistically significant. Results Overall, there was a high diagnostic accuracy for detection of bone defects with CBCT images (sensitivity: 100%/100%), while IO images showed a reduction in accuracy (sensitivity: 69%/63%). Similarly, diagnostic accuracy for defect classification was significantly higher for CBCT, whereas IO images were unable to correctly identify vestibular dehiscence, with incorrect assessment of half of the infrabony defects. For accuracy of measuring defect depth and width, a higher correlation was observed between CBCT and gold standard micro-CT (r = 0.91, 95% CI 0.86–0.94), whereas a lower correlation was seen for IO images (r = 0.82, 95% CI 0.67–0.91). Conclusions The diagnostic accuracy and reliability of CBCT was found to be superior to IO imaging for the detection, classification, and measurement of peri-implant bone defects. The application of CBCT adds substantial information related to the peri-implant bone defect diagnosis and decision-making which cannot be achieved with conventional IO imaging.
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Affiliation(s)
- Dandan Song
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000, Leuven, Belgium.
| | - Sohaib Shujaat
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000, Leuven, Belgium
| | - Karla de Faria Vasconcelos
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000, Leuven, Belgium
| | - Yan Huang
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000, Leuven, Belgium.,West China College of Stomatology, State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Disease, Sichuan University, Chengdu, China
| | - Constantinus Politis
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000, Leuven, Belgium
| | - Ivo Lambrichts
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Reinhilde Jacobs
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000, Leuven, Belgium.,Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
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9
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Xu J, Gou L, Zhang P, Li H, Qiu S. Platelet-rich plasma and regenerative dentistry. Aust Dent J 2020; 65:131-142. [PMID: 32145082 PMCID: PMC7384010 DOI: 10.1111/adj.12754] [Citation(s) in RCA: 141] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2020] [Indexed: 11/30/2022]
Abstract
Regenerative dentistry is an emerging field of medicine involving stem cell technology, tissue engineering and dental science. It exploits biological mechanisms to regenerate damaged oral tissues and restore their functions. Platelet‐rich plasma (PRP) is a biological product that is defined as the portion of plasma fraction of autologous blood with a platelet concentration above that of the original whole blood. A super‐mixture of key cytokines and growth factors is present in platelet granules. Thus, the application of PRP has gained unprecedented attention in regenerative medicine. The rationale underlies the utilization of PRP is that it acts as a biomaterial to deliver critical growth factors and cytokines from platelet granules to the targeted area, thus promoting regeneration in a variety of tissues. Based on enhanced understanding of cell signalling and growth factor biology, researchers have begun to use PRP treatment as a novel method to regenerate damaged tissues, including liver, bone, cartilage, tendon and dental pulp. To enable better understanding of the regenerative effects of PRP in dentistry, this review describes different methods of preparation and application of this biological product, and provides detailed explanations of the controversies and future prospects related to the use of PRP in dental regenerative medicine.
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Affiliation(s)
- J Xu
- Shenzhen Longgang Institute of Stomatology, Shenzhen, Guangdong, China.,Department of Otolaryngology, Longgang E.N.T. Hospital & Shenzhen Key Laboratory of E.N.T., Institute of E.N.T, Shenzhen, Guangdong, China
| | - L Gou
- Center for Genetic Medicine, Xuzhou Maternity and Child Health Care Hospital, Xuzhou, Jiangsu, China
| | - P Zhang
- Shenzhen Longgang Institute of Stomatology, Shenzhen, Guangdong, China.,Department of Otolaryngology, Longgang E.N.T. Hospital & Shenzhen Key Laboratory of E.N.T., Institute of E.N.T, Shenzhen, Guangdong, China
| | - H Li
- Shenzhen Longgang Institute of Stomatology, Shenzhen, Guangdong, China.,Department of Otolaryngology, Longgang E.N.T. Hospital & Shenzhen Key Laboratory of E.N.T., Institute of E.N.T, Shenzhen, Guangdong, China
| | - S Qiu
- Department of Otolaryngology, Longgang E.N.T. Hospital & Shenzhen Key Laboratory of E.N.T., Institute of E.N.T, Shenzhen, Guangdong, China
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