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Buranasin P, Kominato H, Mizutani K, Mikami R, Saito N, Takeda K, Iwata T. Influence of Reactive Oxygen Species on Wound Healing and Tissue Regeneration in Periodontal and Peri-Implant Tissues in Diabetic Patients. Antioxidants (Basel) 2023; 12:1787. [PMID: 37760090 PMCID: PMC10525304 DOI: 10.3390/antiox12091787] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/13/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
Diabetes mellitus (DM) is associated with periodontal disease. Clinically, periodontal treatment is less effective for patients with DM. Oxidative stress is one of the mechanisms that link DM to periodontitis. The production of reactive oxygen species (ROS) is increased in the periodontal tissues of patients with DM and is involved in the development of insulin resistance in periodontal tissues. Insulin resistance decreases Akt activation and inhibits cell proliferation and angiogenesis. This results in the deterioration of wound healing and tissue repair in periodontal tissues. Antioxidants and insulin resistance ameliorants may inhibit ROS production and improve wound healing, which is worsened by DM. This manuscript provides a comprehensive review of the most recent basic and clinical evidence regarding the generation of ROS in periodontal tissues resulting from microbial challenge and DM. This study also delves into the impact of oxidative stress on wound healing in the context of periodontal and dental implant therapies. Furthermore, it discusses the potential benefits of administering antioxidants and anti-insulin resistance medications, which have been shown to counteract ROS production and inflammation. This approach may potentially enhance wound healing, especially in cases exacerbated by hyperglycemic conditions.
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Affiliation(s)
- Prima Buranasin
- Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Hiromi Kominato
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Koji Mizutani
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Risako Mikami
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Natsumi Saito
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Kohei Takeda
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
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Kniha K, Hermanns-Sachweh B, Möhlhenrich SC, Peters F, Heitzer M, Winnand P, Hölzle F, Modabber A. Effect of systemic antiresorptive medication on the histopathological parameters of implant osseointegration in an in vivo rodent study. BMC Oral Health 2023; 23:117. [PMID: 36810006 PMCID: PMC9945384 DOI: 10.1186/s12903-023-02763-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 01/24/2023] [Indexed: 02/23/2023] Open
Abstract
BACKGROUND The purpose of this study was to evaluate the osseointegration of zirconia and titanium implants in the rat maxilla in specimens under systemic antiresorptive therapy. MATERIALS AND METHODS After 4 weeks of systematic medication administration (either zoledronic acid or alendronic acid), 54 rats received one zirconia and one titanium implants that were immediately inserted in the rat maxilla after tooth extraction. Twelve weeks after implant placement, histopathological samples were evaluated for implant osteointegration parameters. RESULTS The bone-implant-contact (BIC) ratio revealed no significant inter-group or inter-material differences. The distance between the implant shoulder to the bone level was significantly greater around the titanium implants of the zoledronic acid group compared to the zirconia implants of the control group (p = 0.0005). On average, signs of new bone formation could be detected in all groups, although often without statistical differences. Signs of bone necrosis were only detected around the zirconia implants of the control group (p < 0.05). CONCLUSIONS At the 3-month follow-up, no implant material was demonstrably better than the others in terms of osseointegration metrics under systemic antiresorptive therapy. Further studies are necessary to determine whether there are differences in the osseointegration behavior of the different materials.
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Affiliation(s)
- Kristian Kniha
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
- Private Clinic for Oral Surgery Dres, Kniha, Rosental 6, 80331, Munich, Germany.
| | - Benita Hermanns-Sachweh
- Private Institute for Implant Pathology, ZBMT, Campus Melaten, Pauwelsstaße 17, Aachen, Germany
| | | | - Florian Peters
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Marius Heitzer
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Philipp Winnand
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Frank Hölzle
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Ali Modabber
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
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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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Wheelis SE, Biguetti CC, Natarajan S, Chandrashekar BL, Arteaga A, Allami JE, Garlet GP, Rodrigues DC. Effects of Dicationic Imidazolium-Based Ionic Liquid Coatings on Oral Osseointegration of Titanium Implants: A Biocompatibility Study in Multiple Rat Demographics. Genes (Basel) 2022; 13:genes13040642. [PMID: 35456448 PMCID: PMC9026960 DOI: 10.3390/genes13040642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/20/2022] [Accepted: 03/30/2022] [Indexed: 01/27/2023] Open
Abstract
Dicationic imidazolium-based ionic liquids with amino acid anions, such as IonL-phenylalanine (IonL-Phe), have been proposed as a multifunctional coating for titanium (Ti) dental implants. However, there has been no evaluation of the biocompatibility of these Ti coatings in the oral environment. This study aims to evaluate the effects of IonL-Phe on early healing and osseointegration of Ti in multiple rat demographics. IonL-Phe-coated and uncoated Ti screws were implanted into four demographic groups of rats to represent biological variations that could affect healing: young males (YMs) and females (YFs), ovariectomized (OVXFs) females, and old males (OMs). Samples underwent histopathological and histomorphometric analysis to evaluate healing at 7 and 30 days around IonL-coated and uncoated Ti. The real-time quantitative polymerase chain reaction was also conducted at the 2- and 7-day YM groups to evaluate molecular dynamics of healing while the IonL-Phe was present on the surface. IonL-coated and uncoated implants demonstrated similar histological signs of healing, while coated samples’ differential gene expression of immunological and bone markers was compared with uncoated implants at 2 and 7 days in YMs. While YMs presented suitable osseointegration for both uncoated and IonL-Phe-coated groups, decreased success rate in other demographics resulted from lack of supporting bone in YFs and poor bone quality in OVXFs and OMs. Overall, it was found that IonL-coated samples had increased bone-to-implant contact across all demographic groups. IonL-Phe coating led to successful osseointegration across all animal demographics and presented the potential to prevent failures in scenarios known to be challenged by bacteria.
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Affiliation(s)
- Sutton E. Wheelis
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Claudia C. Biguetti
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Shruti Natarajan
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA;
- Texas A&M College of Dentistry, Dallas, TX 75246, USA
| | - Bhuvana Lakkasetter Chandrashekar
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Alexandra Arteaga
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Jihad El Allami
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Gustavo P. Garlet
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, São Paulo 01000, Brazil;
| | - Danieli C. Rodrigues
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
- Correspondence:
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Saito N, Mikami R, Mizutani K, Takeda K, Kominato H, Kido D, Ikeda Y, Buranasin P, Nakagawa K, Takemura S, Ueno T, Hosaka K, Hanawa T, Shinomura T, Iwata T. Impaired dental implant osseointegration in rat with streptozotocin-induced diabetes. J Periodontal Res 2022; 57:412-424. [PMID: 35037248 DOI: 10.1111/jre.12972] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/03/2021] [Accepted: 01/06/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Few studies have reported on the impact of oxidative stress on the dental implant failure. The aim of this study was to investigate the impact of hyperglycemia-induced oxidative stress on dental implant osseointegration in diabetes mellitus (DM). METHODS Acid-treated titanium implants were bilaterally placed in the maxillary alveolar ridge of streptozotocin-induced diabetic (DM group) and control rats after extraction of first molars. Histological analysis and micro-push-out test were performed 4 weeks after surgery. Oxidative stress and osteogenic markers in the surrounding bone were quantified by real-time polymerase chain reaction. In the in vitro study, rat bone marrow-derived mesenchymal stem cells (BMMSCs) were cultured on acid-treated titanium discs in a high-glucose (HG) or normal environment. Intracellular reactive oxygen species (ROS), cell proliferation, alkaline phosphatase (ALP) activity, and extracellular calcification were evaluated following antioxidant treatment with N-acetyl-L-cysteine (NAC). RESULTS The implant survival rate was 92.9% and 75.0% in control and DM group, respectively. Bone-implant contact and push-out loads were significantly lower in the DM group. Expression of superoxide dismutase 1 at the mRNA level and on immunohistochemistry was significantly lower in the DM group. In vitro experiments revealed that the HG condition significantly increased ROS expression and suppressed the proliferation and extracellular calcification of BMMSCs, while NAC treatment significantly restored ROS expression, cell proliferation, and calcification. The ALP activity of both groups was not significantly different. CONCLUSION In diabetes, high-glucose-induced oxidative stress downregulates proliferation and calcification of BMMSCs, impairing osseointegration and leading to implant failure.
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Affiliation(s)
- Natsumi Saito
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Risako Mikami
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Koji Mizutani
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kohei Takeda
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiromi Kominato
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Daisuke Kido
- Oral Diagnosis and General Dentistry, Dental Hospital, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yuichi Ikeda
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Prima Buranasin
- Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University, Bangkok, Thailand
| | - Keita Nakagawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shu Takemura
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takeshi Ueno
- Department of Advanced Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Keiichi Hosaka
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Regenerative Dental Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Takao Hanawa
- Department of Metallic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tamayuki Shinomura
- Department of Tissue Regeneration, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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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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Wheelis SE, Biguetti CC, Natarajan S, Arteaga A, Allami JE, Chandrashekar BL, Garlet G, Rodrigues DC. Cellular and Molecular Dynamics during Early Oral Osseointegration: A Comprehensive Characterization in the Lewis Rat. ACS Biomater Sci Eng 2021; 7:2392-2407. [PMID: 33625829 PMCID: PMC8796703 DOI: 10.1021/acsbiomaterials.0c01420] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE There is a need to improve the predictability of osseointegration in implant dentistry. Current literature uses a variety of in vivo titanium (Ti) implantation models to investigate failure modes and test new materials and surfaces. However, these models produce a variety of results, making comparison across studies difficult. The purpose of this study is to validate an oral osseointegration in the Lewis rat to provide a reproducible baseline to track the inflammatory response and healing of Ti implants. METHODS Ti screws (0.76 mm Ø × 2 mm length) were implanted into the maxillary diastema of 52 adult male Lewis rats. Peri-implant tissues were evaluated 2, 7, 14, and 30 days after implantation (n = 13). Seven of the 13 samples underwent microtomographic analysis, histology, histomorphometry, and immunohistochemistry to track healing parameters. The remaining six samples underwent quantitative polymerase chain reaction (qPCR) to evaluate gene expression of inflammation and bone remodeling markers over time. RESULTS This model achieved a 78.5% success rate. Successful implants had a bone to implant contact (BIC)% of 68.86 ± 3.15 at 30 days on average. Histologically, healing was similar to other rodent models: hematoma and acute inflammation at 2 days, initial bone formation at 7, advanced bone formation and remodeling at 14, and bone maturation at 30. qPCR indicated the highest expression of bone remodeling and inflammatory markers 2-7 days, before slowly declining to nonsurgery control levels at 14-30 days. CONCLUSION This model combines cost-effectiveness and simplicity of a rodent model, while maximizing BIC, making it an excellent candidate for evaluation of new surfaces.
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Affiliation(s)
| | | | - Shruti Natarajan
- Department of Biological Sciences, University of Texas at Dallas
- Texas A&M College of Dentistry
| | | | | | | | - Gustavo Garlet
- Bauru School of Dentistry, Department of Biological Sciences, University of São Paulo São Paulo, Brazil
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Kniha K, Bock A, Peters F, Magnuska ZA, Gremse F, Möhlhenrich SC, Hölzle F, Modabber A. Microstructural volumetric analysis of the jaw following dental implantation under systemic bisphosphonate delivery: An in vivo and ex vivo rat study. J Periodontol 2020; 92:66-75. [PMID: 33258110 DOI: 10.1002/jper.20-0547] [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] [Received: 07/23/2020] [Revised: 09/29/2020] [Accepted: 10/27/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND Because of bisphosphonate medication, dental implantation with a subsequent infection poses a relevant risk factor to suffer from medication-related osteonecrosis of the jaw. This rat study evaluated different implant materials under systemic bisphosphonate delivery using micro-computed tomography (μCT) images. METHODS Fifty-four rats were randomly allocated into a control group 1, test group 2 with intravenous drug application of zoledronic acid and test group 3 with a subcutaneous application of alendronic acid. After 4 weeks of drug delivery, the first molar on each side of the upper jaw was extracted, and either a zirconia or a titanium implant was immediately inserted. Radiological examinations at four timepoints before the operation, 1 week later, 6 weeks later and after 12 weeks of follow up included μCT measurements of the in vivo peri-implant bone loss. μCT measurements of the ex vivo peri-implant bony structure after 12 weeks follow-up covered the bone mineral density, -volume, -trabecular thickness and -separation. RESULTS Both test groups showed a significant increase in bone loss over time (P < 0.05). The clinical observations of exposed bone revealed that most cases occurred under alendronic acid delivery. Exposed bone was recorded only in the test groups around both titanium and zirconia implants. Regarding the peri-implant bony structure, no significant differences were found between both materials. CONCLUSIONS Systemic bisphosphonate delivery led to increased peri-implant bone loss over time after immediate implant insertion. In terms of bone resorption and bone quality parameters, no implant material was superior to the other.
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Affiliation(s)
- Kristian Kniha
- Private clinic for oral and maxillofacial surgery, Kniha, Schlegel and colleagues, Munich, Germany.,Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Anna Bock
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Florian Peters
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Zuzanna Anna Magnuska
- Department of Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany
| | - Felix Gremse
- Department of Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany
| | | | - Frank Hölzle
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Ali Modabber
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
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9
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Hou M, Lee RSB, Du Z, Hamlet SM, Vaquette C, Ivanovski S. The influence of high‐dose systemic zoledronate administration on osseointegration of implants with different surface topography. J Periodontal Res 2019; 54:633-643. [DOI: 10.1111/jre.12664] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 04/01/2019] [Accepted: 04/12/2019] [Indexed: 01/17/2023]
Affiliation(s)
- Michaela Hou
- School of Dentistry and Oral Health, Griffith Health Institute Griffith University Gold Coast Queensland Australia
| | - Ryan S. B. Lee
- School of Dentistry and Oral Health, Griffith Health Institute Griffith University Gold Coast Queensland Australia
- School of Dentistry The University of Queensland Herston Queensland Australia
| | - Zhibin Du
- Institute of Health and Biomedical Innovation Queensland University of Technology Kelvin Grove Queensland Australia
| | - Stephen M. Hamlet
- School of Dentistry and Oral Health, Griffith Health Institute Griffith University Gold Coast Queensland Australia
| | - Cedryck Vaquette
- School of Dentistry The University of Queensland Herston Queensland Australia
| | - Sašo Ivanovski
- School of Dentistry The University of Queensland Herston Queensland Australia
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Shirai M, Yamamoto R, Chiba T, Komatsu K, Shimoda S, Yamakoshi Y, Oida S, Ohkubo C. Bone augmentation around a dental implant using demineralized bone sheet containing biologically active substances. Dent Mater J 2016; 35:470-8. [PMID: 27252004 DOI: 10.4012/dmj.2016-026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study was designed to evaluate the volume of alveolar bone augmentation after immediate implant placement using demineralized bone. We examined the collagen matrix of demineralized bone and biologically active substances contained therein. Rat maxillary first molars were extracted, and the animals were divided into five groups as follows: tooth extraction only, implant into the mesial root socket, implant and other root sockets covered with demineralized bone sheet, implant and other root sockets filled with demineralized bone powder under the sheet, and implant and other root sockets covered with demineralized bone sheet from which proteins were extracted. We ascertained whether biologically active substances are contained in extracted proteins. Biologically active substances were detected in extracted proteins. Conditions using demineralized bone sheet with biologically active substances significantly augmented the height of the alveolar bone. Such resorbable membranes containing biologically active substances hold promise as clinical agents for bone augmentation upon implantation.
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Affiliation(s)
- Mai Shirai
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
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