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Marasli C, Katifelis H, Gazouli M, Lagopati N. Nano-Based Approaches in Surface Modifications of Dental Implants: A Literature Review. Molecules 2024; 29:3061. [PMID: 38999015 PMCID: PMC11243276 DOI: 10.3390/molecules29133061] [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: 04/10/2024] [Revised: 06/14/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024] Open
Abstract
Rehabilitation of fully or partially edentulous patients with dental implants represents one of the most frequently used surgical procedures. The work of Branemark, who observed that a piece of titanium embedded in rabbit bone became firmly attached and difficult to remove, introduced the concept of osseointegration and revolutionized modern dentistry. Since then, an ever-growing need for improved implant materials towards enhanced material-tissue integration has emerged. There is a strong belief that nanoscale materials will produce a superior generation of implants with high efficiency, low cost, and high volume. The aim of this review is to explore the contribution of nanomaterials in implantology. A variety of nanomaterials have been proposed as potential candidates for implant surface customization. They can have inherent antibacterial properties, provide enhanced conditions for osseointegration, or act as reservoirs for biomolecules and drugs. Titania nanotubes alone or in combination with biological agents or drugs are used for enhanced tissue integration in dental implants. Regarding immunomodulation and in order to avoid implant rejection, titania nanotubes, graphene, and biopolymers have successfully been utilized, sometimes loaded with anti-inflammatory agents and extracellular vesicles. Peri-implantitis prevention can be achieved through the inherent antibacterial properties of metal nanoparticles and chitosan or hybrid coatings bearing antibiotic substances. For improved corrosion resistance various materials have been explored. However, even though these modifications have shown promising results, future research is necessary to assess their clinical behavior in humans and proceed to widespread commercialization.
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Affiliation(s)
- Chrysa Marasli
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (M.G.)
| | - Hector Katifelis
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (M.G.)
| | - Maria Gazouli
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (M.G.)
- School of Science and Technology, Hellenic Open University, 26335 Patra, Greece
| | - Nefeli Lagopati
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (M.G.)
- Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece
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2
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Zhang J, Bai H, Bai M, Wang X, Li Z, Xue H, Wang J, Cui Y, Wang H, Wang Y, Zhou R, Zhu X, Xu M, Zhao X, Liu H. Bisphosphonate-incorporated coatings for orthopedic implants functionalization. Mater Today Bio 2023; 22:100737. [PMID: 37576870 PMCID: PMC10413202 DOI: 10.1016/j.mtbio.2023.100737] [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: 03/20/2023] [Revised: 06/06/2023] [Accepted: 07/19/2023] [Indexed: 08/15/2023] Open
Abstract
Bisphosphonates (BPs), the stable analogs of pyrophosphate, are well-known inhibitors of osteoclastogenesis to prevent osteoporotic bone loss and improve implant osseointegration in patients suffering from osteoporosis. Compared to systemic administration, BPs-incorporated coatings enable the direct delivery of BPs to the local area, which will precisely enhance osseointegration and bone repair without the systemic side effects. However, an elaborate and comprehensive review of BP coatings of implants is lacking. Herein, the cellular level (e.g., osteoclasts, osteocytes, osteoblasts, osteoclast precursors, and bone mesenchymal stem cells) and molecular biological regulatory mechanism of BPs in regulating bone homeostasis are overviewed systematically. Moreover, the currently available methods (e.g., chemical reaction, porous carriers, and organic material films) of BP coatings construction are outlined and summarized in detail. As one of the key directions, the latest advances of BP-coated implants to enhance bone repair and osseointegration in basic experiments and clinical trials are presented and critically evaluated. Finally, the challenges and prospects of BP coatings are also purposed, and it will open a new chapter in clinical translation for BP-coated implants.
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Affiliation(s)
- Jiaxin Zhang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Haotian Bai
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Miao Bai
- Department of Ocular Fundus Disease, Ophthalmology Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xiaonan Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - ZuHao Li
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Haowen Xue
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Jincheng Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Yutao Cui
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Hui Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Yanbing Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Rongqi Zhou
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xiujie Zhu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Mingwei Xu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xin Zhao
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - He Liu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
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Jolic M, Sharma S, Palmquist A, Shah FA. The impact of medication on osseointegration and implant anchorage in bone determined using removal torque-A review. Heliyon 2022; 8:e10844. [PMID: 36276721 PMCID: PMC9582727 DOI: 10.1016/j.heliyon.2022.e10844] [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: 05/09/2022] [Revised: 08/16/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022] Open
Abstract
Permanently anchored metal implants are frequently used in dental, craniomaxillofacial, and orthopaedic rehabilitation. The success of such therapies is owed to the phenomenon of osseointegration-the direct connection between the living bone and the implant. The extent of biomechanical anchorage (i.e., physical interlocking between the implant and bone) can be assessed with removal torque (RTQ) measurement. Implant anchorage is strongly influenced by underlying bone quality, involving physicochemical and biological properties such as composition and structural organisation of extracellular matrix, extent of micro-damage, and bone turnover. In this review, we evaluated the impact of various pharmacological agents on osseointegration, from animal experiments conducting RTQ measurements. In addition to substances whose antiresorptive and/or anti-catabolic effects on bone are well-documented (e.g., alendronate, zoledronate, ibandronate, raloxifene, human parathyroid hormone, odanacatib, and the sclerostin monoclonal antibody), positive effects on RTQ have been reported for substances that do not primarily target bone (e.g., aminoguanidine, insulin, losartan, simvastatin, bone morphogenetic protein, alpha-tocopherol, and the combination of silk fibroin powder and platelet-rich fibrin). On the contrary, several substances (e.g., prednisolone, cyclosporin A, cisplatin, and enamel matrix derivative) tend to adversely impact RTQ. While morphometric parameters such as bone-implant contact appear to influence the biomechanical anchorage, increased or decreased RTQ is not always accompanied by corresponding fluctuations in bone-implant contact. This further confirms that factors such as bone quality underpin biomechanical anchorage of metal implants. Several fundamental questions on drug metabolism and bioavailability, drug dosage, animal-to-human translation, and the consequences of treatment interruption remain yet unanswered.
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Affiliation(s)
- Martina Jolic
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE-405 30, Sweden
| | - Sonali Sharma
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE-405 30, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE-405 30, Sweden
| | - Furqan A. Shah
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE-405 30, Sweden
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Meng F, Yin Z, Ren X, Geng Z, Su J. Construction of Local Drug Delivery System on Titanium-Based Implants to Improve Osseointegration. Pharmaceutics 2022; 14:pharmaceutics14051069. [PMID: 35631656 PMCID: PMC9146791 DOI: 10.3390/pharmaceutics14051069] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/01/2022] [Accepted: 05/13/2022] [Indexed: 02/04/2023] Open
Abstract
Titanium and its alloys are the most widely applied orthopedic and dental implant materials due to their high biocompatibility, superior corrosion resistance, and outstanding mechanical properties. However, the lack of superior osseointegration remains the main obstacle to successful implantation. Previous traditional surface modification methods of titanium-based implants cannot fully meet the clinical needs of osseointegration. The construction of local drug delivery systems (e.g., antimicrobial drug delivery systems, anti-bone resorption drug delivery systems, etc.) on titanium-based implants has been proved to be an effective strategy to improve osseointegration. Meanwhile, these drug delivery systems can also be combined with traditional surface modification methods, such as anodic oxidation, acid etching, surface coating technology, etc., to achieve desirable and enhanced osseointegration. In this paper, we review the research progress of different local drug delivery systems using titanium-based implants and provide a theoretical basis for further research on drug delivery systems to promote bone–implant integration in the future.
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Affiliation(s)
- Fanying Meng
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China;
- School of Medicine, Shanghai University, Shanghai 200444, China
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Zhifeng Yin
- Department of Orthopedics, Shanghai Zhongye Hospital, Shanghai 200941, China;
| | - Xiaoxiang Ren
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China;
- Correspondence: (X.R.); (Z.G.); (J.S.)
| | - Zhen Geng
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China;
- Correspondence: (X.R.); (Z.G.); (J.S.)
| | - Jiacan Su
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China;
- Correspondence: (X.R.); (Z.G.); (J.S.)
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Zhang Y, Gulati K, Li Z, Di P, Liu Y. Dental Implant Nano-Engineering: Advances, Limitations and Future Directions. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2489. [PMID: 34684930 PMCID: PMC8538755 DOI: 10.3390/nano11102489] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/08/2021] [Accepted: 09/18/2021] [Indexed: 12/27/2022]
Abstract
Titanium (Ti) and its alloys offer favorable biocompatibility, mechanical properties and corrosion resistance, which makes them an ideal material choice for dental implants. However, the long-term success of Ti-based dental implants may be challenged due to implant-related infections and inadequate osseointegration. With the development of nanotechnology, nanoscale modifications and the application of nanomaterials have become key areas of focus for research on dental implants. Surface modifications and the use of various coatings, as well as the development of the controlled release of antibiotics or proteins, have improved the osseointegration and soft-tissue integration of dental implants, as well as their antibacterial and immunomodulatory functions. This review introduces recent nano-engineering technologies and materials used in topographical modifications and surface coatings of Ti-based dental implants. These advances are discussed and detailed, including an evaluation of the evidence of their biocompatibility, toxicity, antimicrobial activities and in-vivo performances. The comparison between these attempts at nano-engineering reveals that there are still research gaps that must be addressed towards their clinical translation. For instance, customized three-dimensional printing technology and stimuli-responsive, multi-functional and time-programmable implant surfaces holds great promise to advance this field. Furthermore, long-term in vivo studies under physiological conditions are required to ensure the clinical application of nanomaterial-modified dental implants.
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Affiliation(s)
- Yifan Zhang
- Department of Oral Implantology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China;
| | - Karan Gulati
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia;
| | - Ze Li
- School of Stomatology, Chongqing Medical University, Chongqing 400016, China;
| | - Ping Di
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia;
| | - Yan Liu
- Laboratory of Biomimetic Nanomaterials, Department of Orthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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6
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Gulati K, Zhang Y, Di P, Liu Y, Ivanovski S. Research to Clinics: Clinical Translation Considerations for Anodized Nano-Engineered Titanium Implants. ACS Biomater Sci Eng 2021; 8:4077-4091. [PMID: 34313123 DOI: 10.1021/acsbiomaterials.1c00529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Titania nanotubes (TNTs) fabricated on titanium orthopedic and dental implants have shown significant potential in "proof of concept" in vitro, ex vivo, and short-term in vivo studies. However, most studies do not focus on a clear direction for future research towards clinical translation, and there exists a knowledge gap in identifying key research challenges that must be addressed to progress to the clinical setting. This review focuses on such challenges with respect to anodized titanium implants modified with TNTs, including optimized fabrication on clinically utilized microrough surfaces, clinically relevant bioactivity assessments, and controlled/tailored local release of therapeutics. Further, long-term in vivo investigations in compromised animal models under loading conditions are needed. We also discuss and detail challenges and progress related to the mechanical stability of TNT-based implants, corrosion resistance/electrochemical stability, optimized cleaning/sterilization, packaging/aging, and nanotoxicity concerns. This extensive, clinical translation focused review of TNTs modified Ti implants aims to foster improved understanding of key research gaps and advances, informing future research in this domain.
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Affiliation(s)
- Karan Gulati
- The University of Queensland, School of Dentistry, Herston, Queensland 4006, Australia
| | - Yifan Zhang
- Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Centre for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Ping Di
- Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Centre for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Yan Liu
- Laboratory of Biomimetic Nanomaterials, Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Sašo Ivanovski
- The University of Queensland, School of Dentistry, Herston, Queensland 4006, Australia
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Zamudio-Medina A, Pérez-Hernández N, Castrejón-Flores JL, Romero-García S, Prado-García H, Bañuelos-Hernández A, Franco-Pérez M. Obtaining symmetric and asymmetric bisphosphoramidates and bisphosphoramidothioates by a single step multicomponent reaction. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1878358] [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)
- Angel Zamudio-Medina
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, CDMX, México
| | - Nury Pérez-Hernández
- Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, CDMX, México
| | | | - Susana Romero-García
- Department of Chronic-Degenerative Diseases, National Institute of Respiratory Diseases “Ismael Cosío Villegas”, Mexico City, Mexico
| | - Heriberto Prado-García
- Department of Chronic-Degenerative Diseases, National Institute of Respiratory Diseases “Ismael Cosío Villegas”, Mexico City, Mexico
| | | | - Marco Franco-Pérez
- Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, CDMX, México
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Losic D. Advancing of titanium medical implants by surface engineering: recent progress and challenges. Expert Opin Drug Deliv 2021; 18:1355-1378. [PMID: 33985402 DOI: 10.1080/17425247.2021.1928071] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Introduction:Titanium (Ti) and their alloys are used as main implant materials in orthopedics and dentistry for decades having superior mechanical properties, chemical stability and biocompatibility. Their rejections due lack of biointegration and bacterial infection are concerning with considerable healthcare costs and impacts on patients. To address these limitations, conventional Ti implants need improvements where the use of surface nanoengineering approaches and the development of a new generation of implants are recognized as promising strategies.Areas covered:This review presents an overview of recent progress on the application of surface engineering methods to advance Ti implants enable to address their key limitations. Several promising surface engineering strategies are presented and critically discussed to generate advanced surface properties and nano-topographies (tubular, porous, pillars) able not only to improve their biointegration, antibacterial performances, but also to provide multiple functions such as drug delivery, therapy, sensing, communication and health monitoring underpinning the development of new generation and smart medical implants.Expert opinion:Recent advances in cell biology, materials science, nanotechnology and additive manufacturing has progressively influencing improvements of conventional Ti implants toward the development of the next generation of implants with improved performances and multifunctionality. Current research and development are in early stage, but progressing with promising results and examples of moving into in-vivo studies an translation into real applications.
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Affiliation(s)
- Dusan Losic
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Engineering North Building, Adelaide, SA, Australia.,ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Engineering North Building, Adelaide, SA, Australia
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López-Valverde N, Flores-Fraile J, Ramírez JM, Macedo de Sousa B, Herrero-Hernández S, López-Valverde A. Bioactive Surfaces vs. Conventional Surfaces in Titanium Dental Implants: A Comparative Systematic Review. J Clin Med 2020; 9:jcm9072047. [PMID: 32610687 PMCID: PMC7408888 DOI: 10.3390/jcm9072047] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/17/2020] [Accepted: 06/21/2020] [Indexed: 12/15/2022] Open
Abstract
Animal studies and the scarce clinical trials available that have been conducted suggest that bioactive surfaces on dental implants could improve the osseointegration of such implants. The purpose of this systematic review was to compare the effectiveness of osseointegration of titanium (Ti) dental implants using bioactive surfaces with that of Ti implants using conventional surfaces such as sandblasted large-grit acid-etched (SLA) or similar surfaces. Applying the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement, the MEDLINE, PubMed Central and Web of Science databases were searched for scientific articles in April 2020. The keywords used were “dental implants”, “bioactive surfaces”, “biofunctionalized surfaces”, and “osseointegration”, according to the question: “Do bioactive dental implant surfaces have greater osseointegration capacity compared with conventional implant surfaces?” Risk of bias was assessed using the Cochrane Collaboration tool. 128 studies were identified, of which only 30 met the inclusion criteria: 3 clinical trials and 27 animal studies. The average STROBE (STrengthening the Reporting of OBservational studies in Epidemiology) and ARRIVE (Animal Research: Reporting of In Vivo Experiments) scores were 15.13 ± 2.08 and 17.7±1.4, respectively. Implant stability quotient (ISQ) was reported in 3 studies; removal torque test (RTT)—in 1 study; intraoral periapical X-ray and microcomputed tomography radiological evaluation (RE)—in 4 studies; shear force (SF)—in 1 study; bone-to-implant contact (BIC)—in 12 studies; and BIC and bone area (BA) jointly—in 5 studies. All animal studies reported better bone-to-implant contact surface for bioactive surfaces as compared to control implants with a statistical significance of p < 0.05. Regarding the bioactive surfaces investigated, the best results were yielded by the one where mechanical and chemical treatment methods of the Ti surfaces were combined. Hydroxyapatite (HA) and calcium–phosphate (Ca–Ph) were the most frequently used bioactive surfaces. According to the results of this systematic review, certain bioactive surfaces have a positive effect on osseointegration, although certain coating biomolecules seem to influence early peri-implant bone formation. Further and more in-depth research in this field is required to reduce the time needed for osseointegration of dental implants.
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Affiliation(s)
- Nansi López-Valverde
- Department of Surgery, University of Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain; (N.L.-V.); (J.F.-F.); (S.H.-H.)
| | - Javier Flores-Fraile
- Department of Surgery, University of Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain; (N.L.-V.); (J.F.-F.); (S.H.-H.)
| | - Juan Manuel Ramírez
- Department of Morphological Sciences, University of Cordoba, Avenida Menéndez Pidal s/n, 14071 Cordoba, Spain;
| | - Bruno Macedo de Sousa
- Institute for Occlusion and Orofacial Pain Faculty of Medicine, University of Coimbra, Polo I - Edifício Central Rua Larga, 3004-504 Coimbra, Portugal;
| | - Silvia Herrero-Hernández
- Department of Surgery, University of Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain; (N.L.-V.); (J.F.-F.); (S.H.-H.)
| | - Antonio López-Valverde
- Department of Surgery, University of Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain; (N.L.-V.); (J.F.-F.); (S.H.-H.)
- Correspondence:
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Abstract
Dental implants are frequently used to support fixed or removable dental prostheses to replace missing teeth. The clinical success of titanium dental implants is owed to the exceptional biocompatibility and osseointegration with the bone. Therefore, the enhanced therapeutic effectiveness of dental implants had always been preferred. Several concepts for implant coating and local drug delivery had been developed during the last decades. A drug is generally released by diffusion-controlled, solvent-controlled, and chemical controlled methods. Although a range of surface modifications and coatings (antimicrobial, bioactive, therapeutic drugs) have been explored for dental implants, it is still a long way from designing sophisticated therapeutic implant surfaces to achieve the specific needs of dental patients. The present article reviews various interdisciplinary aspects of surface coatings on dental implants from the perspectives of biomaterials, coatings, drug release, and related therapeutic effects. Additionally, the various types of implant coatings, localized drug release from coatings, and how released agents influence the bone–implant surface interface characteristics are discussed. This paper also highlights several strategies for local drug delivery and their limitations in dental implant coatings as some of these concepts are yet to be applied in clinical settings due to the specific requirements of individual patients.
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Affiliation(s)
- Hamdan S. ALGHAMDI
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University
| | - John A. JANSEN
- Department of Dentistry–Biomaterials, Radboud University Medical Center
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Nano-scale modification of titanium implant surfaces to enhance osseointegration. Acta Biomater 2019; 94:112-131. [PMID: 31128320 DOI: 10.1016/j.actbio.2019.05.045] [Citation(s) in RCA: 222] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 05/15/2019] [Accepted: 05/19/2019] [Indexed: 12/16/2022]
Abstract
The main aim of this review study was to report the state of art on the nano-scale technological advancements of titanium implant surfaces to enhance the osseointegration process. Several methods of surface modification are chronologically described bridging ordinary methods (e.g. grit blasting and etching) and advanced physicochemical approaches such as 3D-laser texturing and biomimetic modification. Functionalization procedures by using proteins, peptides, and bioactive ceramics have provided an enhancement in wettability and bioactivity of implant surfaces. Furthermore, recent findings have revealed a combined beneficial effect of micro- and nano-scale modification and biomimetic functionalization of titanium surfaces. However, some technological developments of implant surfaces are not commercially available yet due to costs and a lack of clinical validation for such recent surfaces. Further in vitro and in vivo studies are required to endorse the use of enhanced biomimetic implant surfaces. STATEMENT OF SIGNIFICANCE: Grit-blasting followed by acid-etching is currently used for titanium implant modifications, although recent technological biomimetic physicochemical methods have revealed enhanced osteoconductive and anti-microbial outcomes. An improvement in wettability and bioactivity of titanium implant surfaces has been accomplished by combining micro and nano-scale modification and functionalization with protein, peptides, and bioactive compounds. Such morphological and chemical modification of the titanium surfaces induce the migration and differentiation of osteogenic cells followed by an enhancement of the mineral matrix formation that accelerate the osseointegration process. Additionally, the incorporation of bioactive molecules into the nanostructured surfaces is a promising strategy to avoid early and late implant failures induced by the biofilm accumulation.
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13
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Ferraris S, Cochis A, Cazzola M, Tortello M, Scalia A, Spriano S, Rimondini L. Cytocompatible and Anti-bacterial Adhesion Nanotextured Titanium Oxide Layer on Titanium Surfaces for Dental and Orthopedic Implants. Front Bioeng Biotechnol 2019; 7:103. [PMID: 31143762 PMCID: PMC6520600 DOI: 10.3389/fbioe.2019.00103] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 04/23/2019] [Indexed: 01/08/2023] Open
Abstract
It is widely recognized that surface nanotextures applied on a biomaterial can affect wettability, protein absorption and cellular and/or bacterial adhesion; accordingly, they are nowadays of great interest to promote fast osseointegration and to maintain physiological healing around biomedical implants. In order to be suitable for clinical applications, surface nanotextures must be not only safe and effective, but also, they should be produced through industrial processes scalable to real devices with sustainable processes and costs: this is often a barrier to the market entry. Based on these premises, a chemical surface treatment designed for titanium and its alloys able to produce an oxide layer with a peculiar sponge like nanotexture coupled with high density of hydroxyl group is here presented. The modified Ti-based surfaces previously showed inorganic bioactivity intended as the ability to induce apatite precipitation in simulated body fluid. Physicochemical properties and morphology of the obtained layers have been characterized by means of FESEM, XPS, and Zeta-potential. Biological response to osteoblasts progenitors and bacteria has been tested. The here proposed nanotextured surfaces successfully supported osteoblasts progenitors' adhesion, proliferation and extracellular matrix deposition thus demonstrating good biocompatibility. Moreover, the nanotexture was able to significantly reduce bacteria surface colonization when the orthopedic and the periodontal pathogens Staphylococcus aureus and Aggregatibacter actinomycetemcomitans strains were applied for a short time. Finally, the applicability of the proposed surface treatment to real biomedical devices (a 3D acetabular cup, a dental screw and a micro-sphered laryngeal implant) has been here demonstrated.
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Affiliation(s)
- Sara Ferraris
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Andrea Cochis
- Department of Health Sciences, Università del Piemonte Orientale "UPO", Novara, Italy.,Interdisciplinary Research Center of Autoimmune Diseases, Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, Novara, Italy
| | - Martina Cazzola
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Mauro Tortello
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Alessandro Scalia
- Department of Health Sciences, Università del Piemonte Orientale "UPO", Novara, Italy
| | - Silvia Spriano
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Lia Rimondini
- Department of Health Sciences, Università del Piemonte Orientale "UPO", Novara, Italy.,Interdisciplinary Research Center of Autoimmune Diseases, Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, Novara, Italy
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14
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Maher S, Mazinani A, Barati MR, Losic D. Engineered titanium implants for localized drug delivery: recent advances and perspectives of Titania nanotubes arrays. Expert Opin Drug Deliv 2019; 15:1021-1037. [PMID: 30259776 DOI: 10.1080/17425247.2018.1517743] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Therapeutics delivery to bones to treat skeletal diseases or prevent postsurgical infections is challenging due to complex and solid bone structure that limits blood supply and diffusion of therapeutics administered by systemic routes to reach effective concentration. Titanium (Ti) and their alloys are employed as mainstream implant materials in orthopedics and dentistry; having superior mechanical/biocompatibility properties which could provide an alternative solution to address this problem. AREAS COVERED This review presents an overview of recent development of Ti drug-releasing implants, with emphasis on nanoengineered Titania nanotubes (TNTs) structures, for solving key problems to improve implants osseointegration, overcome inflammation and infection together with providing localized drug delivery (LDD) for bone diseases including cancer. Critical analysis of the advantages/disadvantages of developed concepts is discussed, their drug loading/releasing performances and specific applications. EXPERT OPINION LDD to bones can address many disorders and postsurgical conditions such as inflammation, implants rejection and infection. To this end, TNTs-Ti implants represent a potential promise for the development of new generation of multifunctional implants with drug release functions. Even this concept is extensively explored recently, there is a strong need for more preclinical studies using animal models to confirm the long-term safety and stability of TNTs-Ti implants for real-life medical applications.
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Affiliation(s)
- Shaheer Maher
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
| | - Arash Mazinani
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
| | - Mohammad Reza Barati
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
| | - Dusan Losic
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
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15
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Basudan AM, Shaheen MY, de Vries RB, van den Beucken JJJP, Jansen JA, Alghamdi HS. Antiosteoporotic Drugs to Promote Bone Regeneration Related to Titanium Implants: A Systematic Review and Meta-Analysis. TISSUE ENGINEERING PART B-REVIEWS 2018; 25:89-99. [PMID: 30191772 DOI: 10.1089/ten.teb.2018.0120] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
IMPACT STATEMENT This meta-analysis was to investigate literature on the administration of antiosteoporotic drugs as an effective adjunct therapy for implant osseointegration using in vivo animal models.
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Affiliation(s)
- Amani M Basudan
- 1 Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Marwa Y Shaheen
- 1 Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Rob B de Vries
- 2 Systematic Review Center for Laboratory Animal Experimentation, Department for Health Evidence (section HTA), Radboudumc, Nijmegen, The Netherlands
| | | | - John A Jansen
- 3 Department of Biomaterials, Radboudumc, Nijmegen, The Netherlands
| | - Hamdan S Alghamdi
- 1 Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.,3 Department of Biomaterials, Radboudumc, Nijmegen, The Netherlands
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16
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Gulati K, Hamlet SM, Ivanovski S. Tailoring the immuno-responsiveness of anodized nano-engineered titanium implants. J Mater Chem B 2018; 6:2677-2689. [PMID: 32254221 DOI: 10.1039/c8tb00450a] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Owing to its biocompatibility and corrosion resistance, titanium is one of the most commonly used implantable biomaterials. Numerous in vitro and in vivo investigations have established that titanium surfaces with a nanoscale topography outperform conventional smooth or micro-rough surfaces in terms of achieving desirable bonding with bone (i.e. enhanced bioactivity). Among these nanoscale topographical modifications, ordered nanostructures fabricated via electrochemical anodization, especially titania nanotubes (TNTs), are particularly attractive. This is due to their ability to augment bioactivity, deliver drugs and the potential for easy/cost-effective translation into the current implant market. However, the potential of TNT-modified implants to modulate the host immune-inflammatory response, which is critical for achieving timely osseointegration, remains relatively unexplored. Such immunomodulatory effects may be achieved by modifying the physical and chemical properties of the TNTs. Furthermore, therapeutic/bioactive enhancements performed on these nano-engineered implants (such as antibacterial or osteogenic functions) are likely to illicit an immune response which needs to be appropriately controlled. The lack of sufficient in-depth studies with respect to immune cell responses to TNTs has created research gaps that must be addressed in order to facilitate the design of the next generation of immuno-modulatory titanium implants. This review article focuses on the chemical, topographical and mechanical features of TNT-modified implants that can be manipulated in order to achieve immuno-modulation, as well as providing an insight into how modulating the immune response can augment implant performance.
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Affiliation(s)
- Karan Gulati
- School of Dentistry, The University of Queensland, 288 Herston Road, Herston, QLD 4006, Australia.
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17
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Najeeb S, Zafar MS, Khurshid Z, Zohaib S, Hasan SM, Khan RS. Bisphosphonate releasing dental implant surface coatings and osseointegration: A systematic review. J Taibah Univ Med Sci 2017; 12:369-375. [PMID: 31435266 PMCID: PMC6694927 DOI: 10.1016/j.jtumed.2017.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/01/2017] [Accepted: 05/08/2017] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVES Bisphosphonates (BPs) are a class of drugs that are used to treat osteoporosis. It has been suggested that BP coatings on dental implants have a positive effect on new bone formation. The purpose of this review is to analyse the currently available data concerning the clinical and experimental efficacy of BP-releasing titanium implants such that their potential in clinical oral implant dentistry may be ascertained. METHODS Based on a literature review, a focused research question was constructed: what is the effect of a BP-releasing coating on the osseointegration of titanium dental implant? The databases of PubMED/MEDLINE; ISI Web of Knowledge; Embase and Google Scholar were searched electronically using the keywords 'dental implant'; 'bisphosphonate' and 'titanium.' The quality; general characteristics and outcomes of each study were summarized and analysed systematically. RESULTS A total of eleven articles fulfilled the criteria to be included in this review. Eight studies were experimental; two studies were clinical; and one study was experimental and clinical. In nine studies (82%), BP-coated implants resulted in higher osseointegration, as indicated by higher resonance frequency values, removal torque, bone-implant contact and new bone formation. In two studies (18%), there was no difference between the osseointegration of BP-coated implants and controls. CONCLUSIONS Bisphosphonates-loaded implants may have a positive effect on osseointegration. However, more well-designed clinical studies are required to demonstrate their osseoconductive effects.
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Affiliation(s)
- Shariq Najeeb
- Restorative Dental Sciences, Al-Farabi College, Al Khaleej, King Abdullah Road, Riyadh, KSA
| | - Muhammad S. Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Almadinah Almunawwarah, KSA
| | - Zohaib Khurshid
- Department of Prosthodontics and Implantology, College of Dentistry, King Faisal University, Al-Ahsa, KSA
| | - Sana Zohaib
- Department of Biomedical Engineering, King Faisal University, Al Hofuf, KSA
| | - Syed M. Hasan
- Department of Oral Medicine, Dow International Dental College, Dow University of Health Sciences, Karachi, Pakistan
| | - Rabia S. Khan
- Department of Oral Pathology, College of Dentistry, Baqai Medical University, Karachi, Pakistan
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18
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Kwon DH, Lee SJ, Wikesjö UME, Johansson PH, Johansson CB, Sul YT. Bone tissue response following local drug delivery of bisphosphonate through titanium oxide nanotube implants in a rabbit model. J Clin Periodontol 2017; 44:941-949. [PMID: 28703333 DOI: 10.1111/jcpe.12776] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2017] [Indexed: 11/27/2022]
Abstract
OBJECTIVES The objective of this study was to evaluate whether surface chemistry-controlled TiO2 nanotube structures may serve as a local drug delivery system for zoledronic acid improving implant-bone support. METHODS Twenty-four screw-shaped Ti implants with surface chemistry-controlled TiO2 nanotube structures were prepared and divided into a zoledronic acid-formatted test and a native control group. The implants were inserted into contra-lateral femoral condyles in 12 New Zealand White rabbits. Bone support was evaluated using resonance frequency analysis (RFA) and removal torque (RTQ), as well as histometric analysis following a 3-weeks healing interval. RESULTS Zoledronic acid-formatted TiO2 nanotube test implants showed significantly improved implant stability and osseointegration measured using RFA and RTQ compared with control (p < 0.05), and showed significantly enhanced new bone formation within the root of the threads compared with control (p < 0.05). CONCLUSIONS TiO2 nanotube implants may prove to be a significant delivery system for drugs or biologic agents aimed at supporting local bone formation. Additional study of candidate drugs/agents, optimized dosage and release kinetics is needed prior to evaluation in clinical settings.
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Affiliation(s)
- David H Kwon
- Department of Prosthodontics/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Periodontics, 618th Dental Company, Camp Humphreys, Pyeongtaek, Korea
| | - Sang J Lee
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA, USA
| | - Ulf M E Wikesjö
- Laboratory for Applied Periodontal & Craniofacial Regeneration, Departments of Periodontics and Oral Biology, Augusta University
- Dental College of Georgia, Augusta, GA, USA
| | - Petra H Johansson
- Department of Prosthodontics/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Carina B Johansson
- Department of Prosthodontics/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Young-Taeg Sul
- Department of Prosthodontics/Dental Materials Science, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Gulati K, Ivanovski S. Dental implants modified with drug releasing titania nanotubes: therapeutic potential and developmental challenges. Expert Opin Drug Deliv 2016; 14:1009-1024. [PMID: 27892717 DOI: 10.1080/17425247.2017.1266332] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION The transmucosal nature of dental implants presents a unique therapeutic challenge, requiring not only rapid establishment and subsequent maintenance of osseointegration, but also the formation of resilient soft tissue integration. Key challenges in achieving long-term success are sub-optimal bone integration in compromised bone conditions and impaired trans-mucosal tissue integration in the presence of a persistent oral microbial biofilm. These challenges can be targeted by employing a drug-releasing implant modification such as TiO2 nanotubes (TNTs), engineered on titanium surfaces via electrochemical anodization. Areas covered: This review focuses on applications of TNT-based dental implants towards achieving optimal therapeutic efficacy. Firstly, the functions of TNT implants will be explored in terms of their influence on osseointegration, soft tissue integration and immunomodulation. Secondly, the developmental challenges associated with such implants are reviewed including sterilization, stability and toxicity. Expert opinion: The potential of TNTs is yet to be fully explored in the context of the complex oral environment, including appropriate modulation of alveolar bone healing, immune-inflammatory processes, and soft tissue responses. Besides long-term in vivo assessment under masticatory loading conditions, investigating drug-release profiles in vivo and addressing various technical challenges are required to bridge the gap between research and clinical dentistry.
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Affiliation(s)
- Karan Gulati
- a School of Dentistry and Oral Health , Griffith University , Gold Coast , Australia.,b Tissue Engineering and Regenerative Medicine (TERM) Group, Understanding Chronic Conditions (UCC) Program, Menzies Health Institute Queensland , Griffith University , Gold Coast , Australia
| | - Sašo Ivanovski
- a School of Dentistry and Oral Health , Griffith University , Gold Coast , Australia.,b Tissue Engineering and Regenerative Medicine (TERM) Group, Understanding Chronic Conditions (UCC) Program, Menzies Health Institute Queensland , Griffith University , Gold Coast , Australia
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20
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Kellesarian SV, Abduljabbar T, Vohra F, Gholamiazizi E, Malmstrom H, Romanos GE, Javed F. Does Local Ibandronate and/or Pamidronate Delivery Enhance Osseointegration? A Systematic Review. J Prosthodont 2016; 27:240-249. [PMID: 27870311 DOI: 10.1111/jopr.12571] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/04/2016] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To our knowledge from indexed literature, the present study is the first one to systematically review the influence of local delivery of pamidronate (PAM) and/or ibandronate (IBA) on osseointegration enhancement. The aim of the present systematic review was to assess the efficacy of IBA and/or PAM local delivery (topically or coating on implants surfaces) in promoting osseointegration. MATERIALS AND METHODS To address the focused question, "Does local IBA and/or PAM delivery enhances osseointegration?," indexed databases were searched without time or language restrictions up to and including May 2016 using various combinations of the following keywords: "pamidronate," "ibandronate," "bisphosphonates," "osseointegration," and "topical administration." Letters to the Editor, historic reviews, commentaries, case series, and case reports were excluded. RESULTS Fifteen studies were included. Fourteen studies were performed in animals and 2 were clinical trials. One study reported an experimental model and a clinical trial in the same publication. Results from 12 experimental studies and 2 clinical studies reported improved biomechanical properties and/or osseointegration around implants with PAM and/or IBA. Two experimental studies showed that PAM and/or IBA did not improve osseointegration. CONCLUSIONS On experimental grounds, local IBA and/or PAM delivery seems to enhance osseointegration; however, from a clinical perspective, further randomized control trials are needed to assess the effectiveness of IBA and PAM in promoting osseointegration around dental implants.
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Affiliation(s)
- Sergio Varela Kellesarian
- Department of General Dentistry, Eastman Institute for Oral Health, University of Rochester, Rochester, NY
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Fahim Vohra
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Elham Gholamiazizi
- Department of Engineering, Capital College, Penn State University Harrisburg, Middletown, PA
| | - Hans Malmstrom
- Department of General Dentistry, Eastman Institute for Oral Health, University of Rochester, Rochester, NY
| | - Georgios E Romanos
- Department of Oral Surgery and Implant Dentistry, Dental School, Johann Wolfgang Goethe, University of Frankfurt, Germany.,Department of Periodontology, School of Dental Medicine, Stony Brook University, Stony Brook, NY
| | - Fawad Javed
- Department of General Dentistry, Eastman Institute for Oral Health, University of Rochester, Rochester, NY
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21
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Gulati K, Maher S, Findlay DM, Losic D. Titania nanotubes for orchestrating osteogenesis at the bone-implant interface. Nanomedicine (Lond) 2016; 11:1847-64. [PMID: 27389393 DOI: 10.2217/nnm-2016-0169] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Titanium implants can fail due to inappropriate biomechanics at the bone-implant interface that leads to suboptimal osseointegration. Titania nanotubes (TNTs) fabricated on Ti implants by the electrochemical process have emerged as a promising modification strategy to facilitate osseointegration. TNTs enable augmentation of bone cell functions at the bone-implant interface and can be tailored to incorporate multiple functionalities including the loading of active biomolecules into the nanotubes to target anabolic processes in bone conditions such as osteoporotic fractures. Advanced functions can be introduced, including biopolymers, nanoparticles and electrical stimulation to release growth factors in a desired manner. This review describes the application of TNTs for enhancing osteogenesis at the bone-implant interface, as an alternative approach to systemic delivery of therapeutic agents.
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Affiliation(s)
- Karan Gulati
- School of Chemical Engineering, University of Adelaide, SA, Australia
| | - Shaheer Maher
- School of Chemical Engineering, University of Adelaide, SA, Australia
- Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - David M Findlay
- Discipline of Orthopaedics & Trauma, University of Adelaide, SA, Australia
| | - Dusan Losic
- School of Chemical Engineering, University of Adelaide, SA, Australia
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22
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Influence of the local application of sodium alendronate gel on osseointegration of titanium implants. Int J Oral Maxillofac Surg 2015; 44:1423-9. [DOI: 10.1016/j.ijom.2015.05.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 04/01/2015] [Accepted: 05/20/2015] [Indexed: 11/19/2022]
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23
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Lee JK, Choi DS, Jang I, Choi WY. Improved osseointegration of dental titanium implants by TiO2 nanotube arrays with recombinant human bone morphogenetic protein-2: a pilot in vivo study. Int J Nanomedicine 2015; 10:1145-54. [PMID: 25709438 PMCID: PMC4330039 DOI: 10.2147/ijn.s78138] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
TiO2 nanotube arrays on the surface of dental implants were fabricated by two-step anodic oxidation. Their effects on bone-implant contact were researched by a pilot in vivo study. The implants were classified into four groups. An implant group with TiO2 nanotube arrays and recombinant human bone morphogenetic protein-2 (rhBMP-2) was compared with various surface implants, including machined surface, sandblasted large-grit and acid-etched surface, and TiO2 nanotube array surface groups. The diameter of the TiO2 nanotube window and TiO2 nanotube were ~70 nm and ~110 nm, respectively. The rhBMP-2 was loaded into TiO2 nanotube arrays and elution was detected by an interferometric biosensing method. A change in optical thickness of ~75 nm was measured by flow cell testing for 9 days, indicating elution of rhBMP-2 from the TiO2 nanotube arrays. For the in vivo study, the four groups of implants were placed into the proximal tibia of New Zealand White rabbits. In the implant group with TiO2 nanotube arrays and rhBMP-2, the bone-to-implant contact ratio was 29.5% and the bone volume ratio was 77.3%. Bone remodeling was observed not only in the periosteum but also in the interface between the bone and implant threads. These values were higher than in the machined surface, sandblasted large-grit and acid-etched surface, and TiO2 nanotube array surface groups. Our results suggest that TiO2 nanotube arrays could potentially be used as a reservoir for rhBMP-2 to reinforce osseointegration on the surface of dental implants.
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Affiliation(s)
- Jae-Kwan Lee
- Department of Periodontology, Gangneung-Wonju National University, Gangneung, South Korea ; Research Institute for Dental Engineering, Gangneung-Wonju National University, Gangneung, South Korea
| | - Dong-Soon Choi
- Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University, Gangneung, South Korea ; Research Institute for Dental Engineering, Gangneung-Wonju National University, Gangneung, South Korea
| | - Insan Jang
- Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University, Gangneung, South Korea ; Research Institute for Dental Engineering, Gangneung-Wonju National University, Gangneung, South Korea
| | - Won-Youl Choi
- Department of Metal and Materials Engineering, Gangneung-Wonju National University, Gangneung, South Korea ; Research Institute for Dental Engineering, Gangneung-Wonju National University, Gangneung, South Korea
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24
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Nepal M, Li L, Bae TS, Kim BI, Soh Y. Evaluation of Osseointegration around Tibial Implants in Rats by Ibandronate-Treated Nanotubular Ti-32Nb-5Zr Alloy. Biomol Ther (Seoul) 2014; 22:563-9. [PMID: 25489426 PMCID: PMC4256038 DOI: 10.4062/biomolther.2014.111] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 10/14/2014] [Accepted: 10/30/2014] [Indexed: 11/29/2022] Open
Abstract
Materials with differing surfaces have been developed for clinical implant therapy in dentistry and orthopedics. This study was designed to evaluate bone response to titanium alloy containing Ti-32Nb-5Zr with nanostructure, anodic oxidation, heat treatment, and ibandronate coating. Rats were randomly assigned to two groups for implantation of titanium alloy (untreated) as the control group and titanium alloy group coated with ibandronate as the experimental group. Then, the implants were inserted in both tibiae of the rats for four weeks. After implantation, bone implant interface, trabecular microstructure, mechanical fixation was evaluated by histology, micro-computed tomography (μCT) and the push-out test, respectively. We found that the anodized, heat-treated and ibandronate-coated titanium alloy triggered pronounced bone implant integration and early bone formation. Ibandronate-coated implants showed elevated values for removal torque and a higher level of BV/TV, trabecular thickness and separation upon analysis with μCT and mechanical testing. Similarly, higher bone contact and a larger percentage bone area were observed via histology compared to untreated alloy. Furthermore, well coating of ibandronate with alloy was observed by vitro releasing experiment. Our study provided evidences that the coating of bisphosphonate onto the anodized and heat-treated nanostructure of titanium alloy had a positive effect on implant fixation.
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Affiliation(s)
- Manoj Nepal
- Department of Dental Pharmacology, School of Dentistry, and Institute of Oral Bioscience, Brain Korea 21 Project
| | - Liang Li
- Department of Dental Pharmacology, School of Dentistry, and Institute of Oral Bioscience, Brain Korea 21 Project
| | - Tae Sung Bae
- Department of Dental Biomaterials, School of Dentistry, Chonbuk National University, Jeon-Ju 561-756
| | - Byung Il Kim
- Department of Future Plan and New Material Engineering, Sunchon National University, Suncheon 540-742, Republic of Korea
| | - Yunjo Soh
- Department of Dental Pharmacology, School of Dentistry, and Institute of Oral Bioscience, Brain Korea 21 Project
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25
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26
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Alghamdi HS, Jansen JA. Bone Regeneration Associated with Nontherapeutic and Therapeutic Surface Coatings for Dental Implants in Osteoporosis. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:233-53. [DOI: 10.1089/ten.teb.2012.0400] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hamdan S. Alghamdi
- Department of Biomaterials, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - John A. Jansen
- Department of Biomaterials, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
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Conte Neto N, de Andrade CR, Spolidorio LC, Planeta CDS, Cruz FC, de Souza Bastos A, Marcantonio E. Effects of Chronic Stress and Alendronate Therapy on the Osseointegration of Titanium Implants. Clin Implant Dent Relat Res 2013; 16:762-71. [DOI: 10.1111/cid.12046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Nicolau Conte Neto
- Division of Periodontology; Department of Diagnosis and Surgery; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Cleverton Roberto de Andrade
- Division of Pathology; Department of Physiology and Pathology; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Luis Carlos Spolidorio
- Division of Pathology; Department of Physiology and Pathology; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Cleópatra da Silva Planeta
- Laboratory of Pharmacology; School of Pharmaceutical Sciences; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Fábio Cardoso Cruz
- Laboratory of Pharmacology; School of Pharmaceutical Sciences; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Alliny de Souza Bastos
- Division of Periodontology; Department of Diagnosis and Surgery; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Elcio Marcantonio
- Division of Periodontology; Department of Diagnosis and Surgery; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
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28
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Moon SH, Lee SJ, Park IS, Lee MH, Soh YJ, Bae TS, Kim HS. Bioactivity of Ti-6Al-4V alloy implants treated with ibandronate after the formation of the nanotube TiO2layer. J Biomed Mater Res B Appl Biomater 2012; 100:2053-9. [DOI: 10.1002/jbm.b.32769] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 04/10/2012] [Accepted: 06/13/2012] [Indexed: 11/08/2022]
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