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Bian Y, Cai X, Lv Z, Xu Y, Wang H, Tan C, Liang R, Weng X. Layered Double Hydroxides: A Novel Promising 2D Nanomaterial for Bone Diseases Treatment. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301806. [PMID: 37329200 PMCID: PMC10460877 DOI: 10.1002/advs.202301806] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/07/2023] [Indexed: 06/18/2023]
Abstract
Bone diseases including bone defects, bone infections, osteoarthritis, and bone tumors seriously affect life quality of the patient and bring serious economic burdens to social health management, for which the current clinical treatments bear dissatisfactory therapeutic effects. Biomaterial-based strategies have been widely applied in the treatment of orthopedic diseases but are still plagued by deficient bioreactivity. With the development of nanotechnology, layered double hydroxides (LDHs) with adjustable metal ion composition and alterable interlayer structure possessing charming physicochemical characteristics, versatile bioactive properties, and excellent drug loading and delivery capabilities arise widespread attention and have achieved considerable achievements for bone disease treatment in the last decade. However, to the authors' best knowledge, no review has comprehensively summarized the advances of LDHs in treating bone disease so far. Herein, the advantages of LDHs for orthopedic disorders treatment are outlined and the corresponding state-of-the-art achievements are summarized for the first time. The potential of LDHs-based nanocomposites for extended therapeutics for bone diseases is highlighted and perspectives for LDHs-based scaffold design are proposed for facilitated clinical translation.
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Affiliation(s)
- Yixin Bian
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100730P. R. China
| | - Xuejie Cai
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100730P. R. China
| | - Zehui Lv
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100730P. R. China
| | - Yiming Xu
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100730P. R. China
| | - Han Wang
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100730P. R. China
| | - Chaoliang Tan
- Department of Chemistry and Center of Super‐Diamond and Advanced Films (COSDAF)City University of Hong KongKowloonHong KongP. R. China
- Shenzhen Research InstituteCity University of Hong KongShenzhen518057P. R. China
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource EngineeringBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing100029P. R. China
| | - Xisheng Weng
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100730P. R. China
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Chen S, Rittel D, Shemtov-Yona K. Probing the sensitivity of the resonant frequency analysis to the dental implant-bone condition: A numerical study. J Mech Behav Biomed Mater 2022; 128:105128. [DOI: 10.1016/j.jmbbm.2022.105128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 11/29/2022]
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Li Y, Chen R, Wang F, Cai X, Wang Y. Antimicrobial peptide GL13K immobilized onto SLA-treated titanium by silanization: antibacterial effect against methicillin-resistant Staphylococcus aureus (MRSA). RSC Adv 2022; 12:6918-6929. [PMID: 35424597 PMCID: PMC8981691 DOI: 10.1039/d1ra04974g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 02/22/2022] [Indexed: 02/03/2023] Open
Abstract
Infection is the main reason for implant failure, and the incidence of drug-resistant bacterial infection has increased in recent years. Further, methicillin-resistant Staphylococcus aureus (MRSA)-related implant infection has become a serious worldwide threat. New strategies, other than antibiotics, to tackle drug-resistance, are of high clinical significance. Antimicrobial peptides show clear superiority over conventional antibiotics in inhibiting drug-resistant bacteria. In the present study, we combined the antimicrobial peptide, GL13K, with sandblasting and acid-etching (SLA)-treated titanium using a silane coupling agent. Field emission scanning electron microscopy images showed the morphology of the coating. Attenuated total reflectance Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy results confirmed loading of GL13K, and the hydrophilicity of the SLA-GL13K coating was evaluated by water contact angle analysis. The releasing study of samples showed that the coating has a sustained releasing profile. SLA-GL13K coating exhibited strong contact- and release-killing abilities against MRSA, E. coli, and S. aureus. Meanwhile, Cell Counting Kit 8 analysis and examination of cell morphology demonstrated that the SLA-GL13K coating had good cytocompatibility at antibacterial concentrations. Overall, all these results suggest that SLA-GL13K coating can be successfully fabricated using silanization, and is a promising candidate for controlling MRSA-induced implant-related infection.
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Affiliation(s)
- Yusang Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University Wuhan China
| | - Ruiying Chen
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Department of Implant Dentistry Shanghai China
| | - Fushi Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University Wuhan China
- Hospital of Stomatology Wuhan University, Department of Cariology and Endodontics Wuhan China
| | - Xinjie Cai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University Wuhan China
- Hospital of Stomatology Wuhan University, Department of Prosthodontics Wuhan China
| | - Yining Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University Wuhan China
- Hospital of Stomatology Wuhan University, Department of Prosthodontics Wuhan China
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Abstract
The objective of this study was to evaluate the effect of bone–miniscrew contact percentage (BMC%) and bone quality and quantity on orthodontic miniscrew stability and the maximum insertion torque value (ITV). Orthodontic miniscrews of five different dimensions and several bovine iliac bone specimens were used in the evaluation. Miniscrews of each dimension group were inserted into 20 positions in bovine iliac bone specimens. The experiment was divided into three parts: (1) Bone quality and quantity were evaluated using cone-beam computed tomography (CBCT) and microcomputed tomography. (2) The 3D BMC% was calculated. (3) The ITVs during miniscrew insertion were recorded to evaluate the stability of the orthodontic miniscrews. The results indicated that longer and thicker miniscrews enabled higher ITVs. CBCT was used to accurately measure cortical bone thickness (r = 0.939, P < 0.05) and to predict the bone volume fraction of cancellous bone (r = 0.752, P < 0.05). BMC% was significantly influenced by miniscrew length. The contribution of cortical bone thickness to the ITV is greater than that of cancellous bone structure, and the contribution of cortical bone thickness to BMC% is greater than that of cancellous bone structure. Finally, the higher is BMC%, the greater is the ITV. This study concludes that use of CBCT may predict the mechanical stability of orthodontic miniscrews.
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Wang M, Zhang S, Chen L, Zou H, Wang Y, Xia H. Early soft tissue response to zirconium oxide and titanium healing abutments in vivo: a study in dogs. BMC Oral Health 2021; 21:416. [PMID: 34429083 PMCID: PMC8383379 DOI: 10.1186/s12903-021-01748-0] [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: 01/20/2021] [Accepted: 07/19/2021] [Indexed: 11/24/2022] Open
Abstract
Background This study aimed to investigate the clinical characteristics and early soft tissue response to zirconium oxide (Zr) and titanium (Ti) healing abutments in dogs. Methods Eight implants (four at each hemi-mandible) were inserted after bilateral mandibular third and fourth premolars and first molar extraction in dogs. Then, two Zr and two Ti healing abutments were connected to each unilateral mandible eight weeks later. The ligation method was used to create a peri-implant mucositis model and the 24 abutments were divided into four groups: Zr or Ti healing abutments with ligation (ZrL, TiL) or non-ligation (ZrN, TiN). The clinical indices, peri-implant crevicular fluid (PICF), and inflammatory cytokines (TNF-α and IL-1β) were measured and analyzed on days 0 and 28. The dogs were then sacrificed on day 28, soft tissues around the implants were harvested, and inflammation infiltration was tested by immunohistochemistry. Normal distribution test and two-way analysis of variance was used to analyze the data. Results The results showed that the clinical indices were similar for Zr and Ti healing abutments. There was significantly more PICF in the ZrL and TiL groups compared to in the ZrN and TiN groups. The TNF-α levels in PICF were significantly different between ZrL and ZrN groups on day 28. And the TNF-α levels in PICF were significantly higher in TiL group on day 28 than that on day 0. However, the number of inflammatory cells was not significantly different between the groups as measured by immunohistochemistry. Conclusions These data indicate that soft tissue responses to Zr healing abutments with peri-implant mucositis were comparable to those of Ti healing abutments in vivo, providing a theoretical foundation for the clinical application of Zr abutments.
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Affiliation(s)
- Min Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education and Department of Oral Implantology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Shuang Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education and Department of Preventive Dentistry, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Longjie Chen
- Lanzhou Hospital of Stomatology, Lanzhou, 730000, China
| | - Haixiao Zou
- Department of Stomatology, Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, China
| | - Yining Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education and Department of Prosthodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Haibin Xia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education and Department of Oral Implantology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China.
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Sayed AJ, Shaikh SS, Shaikh SY, Hussain MA, Tareen SUK, Awinashe V. Influence of Inter-Radicular Septal Bone Quantity in Primary Stability of Immediate Molar Implants with Different Length and Diameter Placed in Mandibular Region. A Cone-Beam Computed Tomography-Based Simulated Implant Study. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2021; 13:S484-S491. [PMID: 34447139 PMCID: PMC8375907 DOI: 10.4103/jpbs.jpbs_818_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 11/04/2022] Open
Abstract
AIM The purpose of this in vitro study was to investigate the influence of length and width of implant on primary stability in immediate implants in mandibular first molar. MATERIALS AND METHODS The study was carried out on 40 cone-beam computed tomography scans selected with defined inclusion and exclusion criteria. According to the diameter and length of implants, they were divided into nine groups (G1 to G9). The virtual implants of different diameters and length were placed in mandibular first molar and measurements were done for peri-implant horizontal and vertical gap defect, peri-implant interradicular bone support and apical bone support for all the groups. RESULTS The study groups Diameter, (D-7 mm) showed least horizontal gap defect (Buccal-1.30 ± 0.56 mm, lingual-1.30 ± 0.56 mm, mesial-1.20 ± 0.51 mm, and distal-1.05 ± 0.59 mm) as compared to regular implant diameter (D-4.7) groups (Buccal-2.35 ± 0.483 mm, lingual-2.10 mm ± 0.44 mm, mesial-2.30 ± 0.64 mm, and distal-2.25 ± 0.43 mm). The unsupported Vertical implant gap defect at the coronal part of the socket was 2.80 mm ± 0.83 mm for all groups in both horizontal and vertical direction. The vertical peri-implant interradicular bone support showed increased bone support with increase in implant length (L). The buccal and lingual inter-radicular bone-support was least for Length (L-8.5 mm), moderate for L-11.5 mm, and highest for L-13.5 mm groups, respectively. The mesial inter-radicular bone support was least for G4G7, moderate for G1G2G5G8, and maximum for G3G6G9 groups. Similarly, the distal inter-radicular bone support was least for G4G7, moderate for G1G5G8, and maximum for G2G3G6G9 groups, respectively. There was no apical bone support in L-8.5 mm group as the tip of implant was 3.5-4 mm within the socket tip. Whereas, L-11.5 mm had decent (0.9-1 mm) and L-13.5 mm had Good (1.35-1.95 mm) apical bone support as the implant tip was beyond the socket tip. CONCLUSION All the groups showed good interradicular bone support on buccal and lingual surfaces. Regular width implants with longer length showed satisfactory interradicular bone support on mesial and distal surfaces. Longer implants showed good apical bone support in all the four surfaces and hence good apical primary stability expected.
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Affiliation(s)
- Arshad Jamal Sayed
- Department of Preventive Dentistry, College of Dentistry in Alrass, Qassim University, Saudi Arabia
| | - Safia Shoeb Shaikh
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Qassim University, Saudi Arabia
| | - Shoeb Yakub Shaikh
- Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Saudi Arabia
| | | | | | - Vaibhav Awinashe
- Department of Prosthodontics. College of Dentistry in Alrass, Qassim University, Saudi Arabia
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A Retrospective Study on Insertion Torque and Implant Stability Quotient (ISQ) as Stability Parameters for Immediate Loading of Implants in Fresh Extraction Sockets. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9720419. [PMID: 31781659 PMCID: PMC6875416 DOI: 10.1155/2019/9720419] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/26/2019] [Indexed: 12/13/2022]
Abstract
Background To date, insertion torque value (ITV) and implant stability quotient (ISQ) obtained by the Osstell instrument are common clinical methods to assess the initial stability of an implant for a predictable loading procedure. The aim of this current study is to evaluate the ITV and ISQ as stability parameters as part of the decision-making protocol in the adoption of immediate loading in fresh extraction sockets. Materials and Methods A total of 41 tapered implants were allocated into two groups: the test group (n = 11; 3 males and 8 females; mean age: 62.8 ± 10.7) which received 18 implants as type 1 fresh extraction sockets after teeth removal and the control group (n = 7; 4 males and 3 females; mean age: 65.4 ± 9.7) which received 23 implants placed in healed sockets for a period of at least 3 months. Both the ITV and ISQ data were recorded at the time of insertion (t0). Since ITV (test group) and ITV/ISQ (control group) values were useful for the immediate loading protocol, a screw-retained temporary crown was immediately loaded. ISQ values were recorded after a healing period of 4 months (t1). Results ITV mean values at t0 in test and control groups were, respectively, 48.61 ± 15.39 and 70.47 ± 14.71, whereas ISQ mean values were 57.55 ± 1.93 and 72.86 ± 5.25, respectively, showing a statistically significant difference (p value < 0.001). ISQ mean values at t1 in either the test or the control group were 68.68 ± 4.20 and 74.54 ± 4.17, not showing a statistical difference. The implant survival rate was 100% in both groups, and no surgical and prosthetic complications were reported during the study. Conclusion In conclusion, this study remarked the presence of a residual gap that influenced the ISQ during implant insertion in fresh extraction sockets making this parameter not sufficient for a conclusive decision in the immediate loading, whereas the ITV alone showed to be the best parameter for a final substantial decision.
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TSAI MINGTZU, YU WANPING, HUANG HENGLI, HSU JUITING. EFFECT OF BONE QUALITY ON INITIAL STABILITY OF ORTHODONTIC MINISCREWS. J MECH MED BIOL 2019. [DOI: 10.1142/s021951941940013x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Purpose: This study investigated the effects of the contact percentage (BMC%) of three-dimensional (3D) bone-to-miniscrew specimens in relation to host bone quality on initial miniscrew stability. Furthermore, their correlations were evaluated.Methods: Orthodontic miniscrews (1.6[Formula: see text]mm in diameter and 11[Formula: see text]mm in length) were inserted into four types of artificial bones to measure the maximum insertion torque value (ITV). The miniscrew and artificial foam bone specimens were also scanned using microcomputed tomography, and the obtained images were imported into Mimics software to reconstruct the 3D models and calculate the BMC%. The Kruskal–Wallis test, Wilcoxon rank-sum test with Bonferroni adjustment, and Spearman correlations were applied for statistical and correlation analyses.Results and Conclusions: Inserting the orthodontic miniscrew into artificial foam bone exhibiting higher bone quality resulted in higher maximum ITV and BMC%. The initial implant stability, quantified using ITV, was strongly positively ([Formula: see text]) and correlated with BMC%, as measured from microcomputed tomography images.
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Affiliation(s)
- MING-TZU TSAI
- Department of Biomedical Engineering, Hungkuang University, Taichung 433, Taiwan
| | - WAN-PING YU
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 404, Taiwan
| | - HENG-LI HUANG
- School of Dentistry, College of Dentistry, China Medical University, Taichung 404, Taiwan
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung 413, Taiwan
| | - JUI-TING HSU
- School of Dentistry, College of Dentistry, China Medical University, Taichung 404, Taiwan
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung 413, Taiwan
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Zhang S, Wang M, Jiang T, Zhou Y, Wang Y. Roles of a new drug-delivery healing abutment in the prevention and treatment of peri-implant infections: a preliminary study. RSC Adv 2018; 8:38836-38843. [PMID: 35558280 PMCID: PMC9090660 DOI: 10.1039/c8ra07676f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 11/05/2018] [Indexed: 11/21/2022] Open
Abstract
In this study we modified the common healing abutment into a specifically designed drug-delivery abutment (DDA), which is a hollow columnar system with drug-distribution holes in peripheral wall. The objective of this study was to investigate the possibility of the prevention and treatment of peri-implant diseases with this drug-delivery system. Minocycline hydrochloride was added to DDAs with different hole diameters, and then subjected to bacteria-inhibition tests in vitro with three oral bacterial strains, namely, Streptococcus mutans, Streptococcus sanguinis, and Porphyromonas gingivalis. The implants were placed into the mandible of beagle dogs. DDAs with or without minocycline and normal healing abutments were installed. One week after surgery, the plaques on all the abutments were analyzed by plaque stain. Following this, both abutments and adjacent teeth received oral hygiene to maintain a healing environment. Eleven weeks later, the ligature-induced experimental peri-implantitis model was set up for eight weeks. Periapical radiographs and clinical measurements were performed during the process. We found that inhibition zones were observed surrounding all the tested drug-delivery abutments in all three bacterial strains. One week after implant installation, oral plaque formed on the DDAs with minocycline was significantly less than that on normal abutments and DDAs without drugs. DDA with the minocycline group showed a relatively slower rate of deterioration of the mucosal inflammation and probing depth in the experimental peri-implant lesions. We suggest that this drug-delivery abutment could effectively deliver medications into peri-implant tissues to minimize plaque formation and relieve peri-implant inflammation in the experimental peri-implantitis model. We modified a normal abutment into a drug delivery abutment and discussed its possible application in the prevention and treatment of peri-implant infections.![]()
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Affiliation(s)
- Shuang Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST)
- Key Laboratory of Oral Biomedicine Ministry of Education
- School and Hospital of Stomatology
- Wuhan University
- Wuhan 430079
| | - Min Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST)
- Key Laboratory of Oral Biomedicine Ministry of Education
- School and Hospital of Stomatology
- Wuhan University
- Wuhan 430079
| | - Tao Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST)
- Key Laboratory of Oral Biomedicine Ministry of Education
- School and Hospital of Stomatology
- Wuhan University
- Wuhan 430079
| | - Yi Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST)
- Key Laboratory of Oral Biomedicine Ministry of Education
- School and Hospital of Stomatology
- Wuhan University
- Wuhan 430079
| | - Yining Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST)
- Key Laboratory of Oral Biomedicine Ministry of Education
- School and Hospital of Stomatology
- Wuhan University
- Wuhan 430079
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Evaluation of the osseointegration of dental implants coated with calcium carbonate: an animal study. Int J Oral Sci 2017; 9:133-138. [PMID: 28452375 PMCID: PMC5709541 DOI: 10.1038/ijos.2017.13] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2016] [Indexed: 01/15/2023] Open
Abstract
In an attempt to overcome the limitations of titanium in dental and orthopaedic clinical applications, a new method has been developed to prepare calcium carbonate coatings on sandblasted and acid-etched (SA) titanium implants. The purpose of this study was to investigate the effect of calcium carbonate-SA (CC-SA) implants on osseointegration in vivo. The surfaces of SA and CC-SA implants were characterised for surface morphology and surface chemistry. Subsequently, these two kinds of implants were implanted in the femoral condyles of rabbits. The implants were retrieved and prepared for histological and histomorphometric evaluation 1, 2, 4, 8 and 12 weeks after implantation. Significantly higher values of bone-to-implant contact of the entire implant except the gap area (BIC_ALL) and the bone-to-implant contact of the gap area (BIC_GAP) were found in animals with the CC-SA implants than in those with the SA implants at 4 weeks. Higher values of total gap bone were found in those with the CC-SA implants than in those with the SA implants at 1, 2 and 4 weeks. In conclusion, the current findings demonstrate that the calcium carbonate coating can improve and accelerate the early ingrowth of bone and osseointegration at the early healing phase. This may reduce clinical healing times and thus improve implant success rates.
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Monitoring the Changes of Material Properties at Bone-Implant Interface during the Healing Process In Vivo: A Viscoelastic Investigation. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1945607. [PMID: 28373978 PMCID: PMC5360965 DOI: 10.1155/2017/1945607] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 02/20/2017] [Accepted: 02/26/2017] [Indexed: 01/24/2023]
Abstract
The aim of this study was to monitor the changes of viscoelastic properties at bone-implant interface via resonance frequency analysis (RFA) and the Periotest device during the healing process in an experimental rabbit model. Twenty-four dental implants were inserted into the femoral condyles of rabbits. The animals were sacrificed immediately after implant installation or on day 14, 28, or 56 after surgery. Viscoelastic properties at bone-implant interface were evaluated by measuring the implant stability quotient (ISQ) using RFA and by measuring the Periotest values (PTVs) using the Periotest device. The bone/implant specimens were evaluated histopathologically and histomorphometrically to determine the degree of osseointegration (BIC%). The BIC% values at different time points were then compared with the corresponding ISQ values and PTVs. The mean ISQ value increased gradually and reached 81 ± 1.7 on day 56, whereas the mean PTV decreased over time, finally reaching −0.7 ± 0.5 on day 56. Significant correlations were found between ISQ and BIC% (r = 0.701, p < 0.001), PTV and BIC% (r = −0.637, p < 0.05), and ISQ and PTV (r = −0.68, p < 0.05). These results show that there is a positive correlation between implant stability parameters and peri-implant-bone healing, indicating that the RFA and Periotest are useful for measuring changes of viscoelastic properties at bone-implant interface and are reliable for indirectly predicting the degree of osseointegration.
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Dhaliwal JS, Albuquerque RF, Fakhry A, Kaur S, Feine JS. Customized SmartPeg for measurement of resonance frequency of mini dental implants. Int J Implant Dent 2017; 3:4. [PMID: 28150188 PMCID: PMC5289123 DOI: 10.1186/s40729-017-0066-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/13/2017] [Indexed: 12/03/2022] Open
Abstract
Background One-piece narrow diameter implants (NDIs) have been recommended as “Single-tooth replacements in the anterior zones, single posterior, multiple-unit fixed dental prosthesis (FDP), edentulous jaws to be rehabilitated with FDP, and edentulous jaws rehabilitation with overdentures in situations with reduced mesiodistal space or reduced ridge width.” (ITI consensus 2013). Since NDIs can be immediately loaded, it is important to be able to carry out stability testing. We developed and validated a customized SmartPeg for this type of implant to measure the Implant Stability Quotient (ISQ). The ISQ of mini dental implants (MDIs) was measured and compared with the stability of standard and in a rabbit model. Objective The aim of the study is to test the feasibility of a customized SmartPeg for resonance frequency measurement of single-piece mini dental implants and to compare primary stability of a standard and the mini dental implant (3M™ESPE™ MDI) in a rabbit model after 6 weeks of healing. Methods Eight New Zealand white rabbits were used for the study. The protocol was approved by the McGill University Animal Ethics Review Board. Sixteen 3M™ESPE™ MDI and equal number of standard implants (Ankylos® Friadent, Dentsply) were inserted into the tibia/femur of the rabbits and compared. Each rabbit randomly received two 3M™ESPE™ MDI and two Ankylos® implants in each leg. ISQ values were measured with the help of an Osstell ISQ device using custom-made SmartPegs for the MDIs and implant-specific SmartPegs™ (Osstell) for the Ankylos®. Measurements were obtained both immediately following implant placement surgery and after a 6-week healing period. Each reading was taken thrice and their average compared using Wilcoxon matched pairs signed-rank tests. Results The median ISQ and interquartile range (IQR) values were 53.3 (8.3) at insertion and 60.5 (5.5) at 6 weeks for the 3M™ESPE™MDI and, respectively, 58.5 (4.75) and 65.5 (9.3) for the Ankylos® implant. These values also indicate that both types of implants achieved primary and secondary stability, and this is supported by histological data. ISQ values of both 3M™ESPE™ MDI and Ankylos® increased significantly from the time of insertion to 6 weeks post-insertion (p < 0.05). Conclusions The new custom-made SmartPeg is suitable for measuring the Implant Stability Quotient of 3M™ESPE™MDIs. The primary stability of 3M™ESPE™MDIs is similar to the primary stability attained by standard implants in the rabbit tibia.
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Affiliation(s)
- Jagjit Singh Dhaliwal
- Faculty of Dentistry, McGill University, 2001 McGill College Avenue, Suite 500, Montreal, Quebec, H3A 1G1, Canada.,PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, ᅟ, Brunei Darussalam
| | - Rubens F Albuquerque
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Ali Fakhry
- Faculty of Dentistry, McGill University, 2001 McGill College Avenue, Suite 500, Montreal, Quebec, H3A 1G1, Canada
| | - Sukhbir Kaur
- Department of Zoology, Panjab University, Chandigarh, India
| | - Jocelyne S Feine
- Faculty of Dentistry, McGill University, 2001 McGill College Avenue, Suite 500, Montreal, Quebec, H3A 1G1, Canada.
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Yu Y, Jin G, Xue Y, Wang D, Liu X, Sun J. Multifunctions of dual Zn/Mg ion co-implanted titanium on osteogenesis, angiogenesis and bacteria inhibition for dental implants. Acta Biomater 2017; 49:590-603. [PMID: 27915020 DOI: 10.1016/j.actbio.2016.11.067] [Citation(s) in RCA: 158] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/03/2016] [Accepted: 11/30/2016] [Indexed: 01/01/2023]
Abstract
In order to improve the osseointegration and long-term survival of dental implants, it is urgent to develop a multifunctional titanium surface which would simultaneously have osteogeneic, angiogeneic and antibacterial properties. In this study, a potential dental implant material-dual Zn/Mg ion co-implanted titanium (Zn/Mg-PIII) was developed via plasma immersion ion implantation (PIII). The Zn/Mg-PIII surfaces were found to promote initial adhesion and spreading of rat bone marrow mesenchymal stem cells (rBMSCs) via the upregulation of the gene expression of integrin α1 and integrin β1. More importantly, it was revealed that Zn/Mg-PIII could increase Zn2+ and Mg2+ concentrations in rBMSCs by promoting the influx of Zn2+ and Mg2+ and inhibiting the outflow of Zn2+, and then could enhance the transcription of Runx2 and the expression of ALP and OCN. Meanwhile, Mg2+ ions from Zn/Mg-PIII increased Mg2+ influx by upregulating the expression of MagT1 transporter in human umbilical vein endothelial cells (HUVECs), and then stimulated the transcription of VEGF and KDR via activation of hypoxia inducing factor (HIF)-1α, thus inducing angiogenesis. In addition to this, it was discovered that zinc in Zn/Mg-PIII had certain inhibitory effects on oral anaerobic bacteria (Pg, Fn and Sm). Finally, the Zn/Mg-PIII implants were implanted in rabbit femurs for 4 and 12weeks with Zn-PIII, Mg-PIII and pure titanium as controls. Micro-CT evaluation, sequential fluorescent labeling, histological analysis and push-out test consistently demonstrated that Zn/Mg-PIII implants exhibit superior capacities for enhancing bone formation, angiogenesis and osseointegration, while consequently increasing the bonding strength at bone-implant interfaces. All these results suggest that due to the multiple functions co-produced by zinc and magnesium, rapid osseointegration and sustained biomechanical stability are enhanced by the novel Zn/Mg-PIII implants, which have the potential application in dental implantation in the future. STATEMENT OF SIGNIFICANCE In order to enhance the rapid osseointegration and long-term survival of dental implants, various works on titanium surface modification have been carried out. However, only improving osteogenic activity of implants is not enough, because angiogenesis and bacteria inhibition are also very important for dental implants. In the present study, a novel dental implant material-dual Zn/Mg ion co-implanted titanium (Zn/Mg-PIII) was developed, which was found to have superior osteoinductivity, pro-angiogenic effects and inhibitory effects against oral anaerobes. Furthermore, synergistic effects of Zn/Mg ions on osteogenic differentiation of rBMSCs and the possible mechanism were discovered. In addition, rapid osseointegration and sustained biomechanical stability are greatly enhanced by Zn/Mg-PIII implants, which may have the potential application in dental implantation in the future. We believe this paper may be of particular interest to the readers.
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Shiffler K, Lee D, Rowan M, Aghaloo T, Pi-Anfruns J, Moy PK. Effect of length, diameter, intraoral location on implant stability. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 122:e193-e198. [PMID: 27601347 DOI: 10.1016/j.oooo.2016.06.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/26/2016] [Accepted: 06/05/2016] [Indexed: 12/21/2022]
Abstract
OBJECTIVES To quantitatively compare stability of dental implants with varying lengths, diameters, and intraoral locations. STUDY DESIGN Retrospectively, 200 consecutive NobelReplace Tapered Groovy implants of varying lengths and diameters were evaluated via implant stability quotient readings at placement (T1) and follow-up (T2). Data were analyzed by analysis of variance and simple linear regression tests. RESULTS Intraoral location was statistically significant at T1 and T2. Although implant diameter was not statistically significant, implant length resulted in T1 (P = .08) and T2 (P = .09), which may have a clinically relevant effect on implant stability. An overall implant survival rate of 98% was achieved. Gender and age did not seem to affect implant stability quotient values at placement, follow-up, or implant survival. CONCLUSIONS Intraoral location is an important factor in implant stability, with implants placed in the mandible being more stable than implants placed in the maxilla both at T1 and T2. Length may have a clinically relevant effect on implant stability.
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Affiliation(s)
- Kyle Shiffler
- UCLA School of Dentistry, Oral and Maxillofacial Surgery, Los Angeles, CA, USA
| | - David Lee
- UCLA School of Dentistry, Oral and Maxillofacial Surgery, Los Angeles, CA, USA
| | - Mark Rowan
- UCLA School of Dentistry, Oral and Maxillofacial Surgery, Los Angeles, CA, USA
| | - Tara Aghaloo
- UCLA School of Dentistry, Oral and Maxillofacial Surgery, Los Angeles, CA, USA
| | - Joan Pi-Anfruns
- UCLA School of Dentistry, Oral and Maxillofacial Surgery, Los Angeles, CA, USA
| | - Peter K Moy
- Nobel Biocare Endowed Chair, UCLA School of Dentistry, Los Angeles, CA, USA.
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15
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Satwalekar P, Nalla S, Reddy R, Chowdary SG. Clinical evaluation of osseointegration using resonance frequency analysis. J Indian Prosthodont Soc 2016; 15:192-9. [PMID: 26929512 PMCID: PMC4762340 DOI: 10.4103/0972-4052.165171] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The stability of the implant at the time of placement and during the development of the osseointegration process are the two major issues governing the implant survival. Implant stability is a mechanical phenomenon related to local factors such as bone quality, quantity, type of placement technique and type of implant used. The application of a user-friendly, clinically reliable, non-invasive method to assess implant stability and the osseointegration process is considered highly desirable. Resonance frequency analysis (RFA) is one such method which shows almost perfect reproducibility and repeatability after statistical analysis. The aim of this paper is to review the various methods used to assess implant stability and on the currently used RFA method which is being highly accepted in the recent times.
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Affiliation(s)
- Parth Satwalekar
- SVS Institute of Dental Sciences, Mahabubnagar, Telangana, India
| | - Sandeep Nalla
- SVS Institute of Dental Sciences, Mahabubnagar, Telangana, India
| | - Ramaswamy Reddy
- SVS Institute of Dental Sciences, Mahabubnagar, Telangana, India
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16
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Yu Y, Ding T, Xue Y, Sun J. Osteoinduction and long-term osseointegration promoted by combined effects of nitrogen and manganese elements in high nitrogen nickel-free stainless steel. J Mater Chem B 2016; 4:801-812. [PMID: 32262962 DOI: 10.1039/c5tb02190a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
High nitrogen nickel-free stainless steel promoted osteoinduction and long-term osseointegration of implants by combined effects of N and Mn elements.
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Affiliation(s)
- Yiqiang Yu
- Shanghai Biomaterials Research & Testing Center
- Shanghai Key Laboratory of Stomatology
- Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- China
| | - Tingting Ding
- Shanghai Biomaterials Research & Testing Center
- Shanghai Key Laboratory of Stomatology
- Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- China
| | - Yang Xue
- Shanghai Biomaterials Research & Testing Center
- Shanghai Key Laboratory of Stomatology
- Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- China
| | - Jiao Sun
- Shanghai Biomaterials Research & Testing Center
- Shanghai Key Laboratory of Stomatology
- Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- China
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17
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Rowan M, Lee D, Pi-Anfruns J, Shiffler P, Aghaloo T, Moy PK. Mechanical Versus Biological Stability of Immediate and Delayed Implant Placement Using Resonance Frequency Analysis. J Oral Maxillofac Surg 2015; 73:253-7. [DOI: 10.1016/j.joms.2014.09.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 09/04/2014] [Accepted: 09/27/2014] [Indexed: 10/24/2022]
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18
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Qian SJ, Gu YX, Mo JJ, Qiao SC, Zhuang LF, Lai HC. Resonance frequency analysis of implants placed with osteotome sinus floor elevation in posterior maxillae. Clin Oral Implants Res 2014; 27:113-9. [PMID: 25521163 DOI: 10.1111/clr.12541] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Shu-Jiao Qian
- Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Ying-Xin Gu
- Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jia-Ji Mo
- Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Shi-Chong Qiao
- Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Long-Fei Zhuang
- Faculty of Dentistry, the University of Hong Kong, Hong Kong, SAR, China
| | - Hong-Chang Lai
- Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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Ma K, Cai X, Zhou Y, Zhang Z, Jiang T, Wang Y. Osteogenetic property of a biodegradable three-dimensional macroporous hydrogel coating on titanium implants fabricated via EPD. Biomed Mater 2014; 9:015008. [DOI: 10.1088/1748-6041/9/1/015008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Huang HL, Tsai MT, Su KC, Li YF, Hsu JT, Chang CH, Fuh LJ, Wu AYJ. Relation between initial implant stability quotient and bone-implant contact percentage: an in vitro model study. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 116:e356-61. [DOI: 10.1016/j.oooo.2012.01.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 01/13/2012] [Accepted: 01/23/2012] [Indexed: 11/29/2022]
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21
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Manresa C, Bosch M, Echeverría JJ. The comparison between implant stability quotient and bone-implant contact revisited: an experiment in Beagle dog. Clin Oral Implants Res 2013; 25:1213-1221. [PMID: 24102812 DOI: 10.1111/clr.12256] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Resonance frequency analysis (RFA) is applied clinically for the assessment of implant stability, and the relevance of this application is widely accepted. However, the relationship between resonance frequency (RF) and other parameters of implant stability, such as the histomorphometrical bone-to-implant contact (BIC) parameter, has become controversial in the last decade. OBJECTIVE To analyse and clarify the controversial relationship between RF and histomorphometrical BIC measurements. MATERIAL AND METHODS A total of 36 dental implants (9 mm length, Ø 4.0 mm; Biohorizons(®) Implant Systems Inc., Birmingham, AL, USA) with a soluble blasting media (sandblasting with soluble particles) surface were implanted in six beagle dog mandibles. RFA assessments were performed with a magnetic Osstel Mentor(®) device at the time of implant installation, and during the monitoring period at weeks 1, 2, 4, 6 and 8, before implant retrieval. The dogs were sacrificed and the implants were removed in block after 8, 6, 4, 2, 1 and 0 weeks, respectively. One group was obtained at time 0, immediately after the implantation. The samples were embedded in methyl methacrylate polymers (Technovit(®) ) and cut along their long axis. BIC values were assessed by a non-subjective and systematic method based on backscattered scanning electron microscopy (BS-SEM) images. BIC% at the different time points was compared with the corresponding implant stability quotient (ISQ) values of the RFA assessment. RESULTS No statistically significant correlation between BIC and ISQ values (Osstell Mentor(®) ) was identified. The absence of a relationship between these two parameters is in agreement with several previous studies in humans and experimental animals. CONCLUSIONS The lack of correlation between BIC and ISQ values suggests that ISQ as determined by RFA is not able to identify the relationship between RF and histomorphometrical data.
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Affiliation(s)
- Carolina Manresa
- Departament d'Odontoestomatologia, Odontologia Integrada d'Adults, Facultat d'Odontologia, Campus de Bellvitge, Universitat de Barcelona, Barcelona, Spain
| | - Manel Bosch
- Unitat de Microscòpia Òptica Avançada, Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB), Barcelona, Spain
| | - José J Echeverría
- Departament d'Odontoestomatologia, Odontologia Integrada d'Adults, Facultat d'Odontologia, Campus de Bellvitge, Universitat de Barcelona, Barcelona, Spain
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Yang X, Wang D, Liang Y, Yin H, Zhang S, Jiang T, Wang Y, Zhou Y. A new implant with solid core and porous surface: The biocompatability with bone. J Biomed Mater Res A 2013; 102:2395-407. [PMID: 23946191 DOI: 10.1002/jbm.a.34906] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 07/09/2013] [Accepted: 08/08/2013] [Indexed: 12/21/2022]
Affiliation(s)
- Xu Yang
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology; Wuhan University; Wuhan 430079 People's Republic of China
| | - Dihua Wang
- Department of Environmental Engineering, School of Resource and Environmental Science; Wuhan University; Wuhan 430072 People's Republic of China
| | - Youde Liang
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology; Wuhan University; Wuhan 430079 People's Republic of China
| | - Huayi Yin
- Department of Environmental Engineering, School of Resource and Environmental Science; Wuhan University; Wuhan 430072 People's Republic of China
| | - Shuang Zhang
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology; Wuhan University; Wuhan 430079 People's Republic of China
| | - Tao Jiang
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology; Wuhan University; Wuhan 430079 People's Republic of China
| | - Yining Wang
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology; Wuhan University; Wuhan 430079 People's Republic of China
| | - Yi Zhou
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology; Wuhan University; Wuhan 430079 People's Republic of China
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Dai J, Cheng N, Miron RJ, Shi B, Cheng X, Zhang Y. Effect of decreased implant healing time on bone (re)modeling adjacent to plateaued implants under functional loading in a dog model. Clin Oral Investig 2013; 18:77-86. [PMID: 23377840 DOI: 10.1007/s00784-013-0929-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Accepted: 01/23/2013] [Indexed: 12/26/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the effect of early functional loading to plateaued implants on bone formation and implant stability in a dog model. MATERIALS AND METHODS Early loading (EL), nonloading control, and delayed loading (DL) groups were compared using six beagle dogs under functional loading. The Periotest® values were measured dynamically for 6 weeks. Peri-implant bone architecture was evaluated qualitatively by microcomputed tomography (μCT) and analyzed quantitatively by mineral apposition rates (MAR), bone-to-implant contact (BIC), and bone volumes (BV/TV) after the euthanasia at 3 and 6 weeks after loading. RESULTS The EL implants showed poor stability at 1 week, but greater stability at 2 and 4 weeks after loading compared to DL implants. There was no significant difference between MAR of EL and unloaded implants at both time intervals. The EL implants displayed a significantly higher MAR when compared to DL implants at 3-5 weeks. A significantly higher BIC for the DL group was observed when compared to the EL group at 3 weeks following loading, however at 6 weeks; no significant difference between these groups was observed. The EL group gained a higher BIC than the no-treatment control group at 6 weeks. CONCLUSIONS For plateaued implant, the decreased healing time (1 week) displays a positive effect on peri-implant bone (re)modeling under functional loading during the early phase. CLINICAL RELEVANCE The early application of functional loading on plateaued implants can be used clinically to shorten the course of treatment and improve esthetics.
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Affiliation(s)
- Jing Dai
- Ministry Education Key Laboratory for Oral Biomedical Engineering, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China
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Zhang ZY, Huang AW, Fan JJ, Wei K, Jin D, Chen B, Li D, Bi L, Wang J, Pei G. The Potential Use of Allogeneic Platelet-Rich Plasma for Large Bone Defect Treatment: Immunogenicity and Defect Healing Efficacy. Cell Transplant 2013; 22:175-87. [PMID: 22863146 DOI: 10.3727/096368912x653183] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Autologous platelet-rich plasma (PRP) has been extensively investigated for large bone defect treatment, but its clinical application is harassed by controversial outcome, due to highly variable PRP quality among patients. Alternatively, allogeneic PRP from well-characterized donors cannot only generate more consistent and reliable therapeutic effect but also avoid harvesting large quantities of blood, an additional health burdens to patients. However, the use of allogeneic PRP for bone defect treatment is generally less investigated, especially for its immunogenicity in such application. Here, we meticulously investigated the immunogenicity of allogeneic PRP and evaluated its healing efficacy for critical-sized defect treatment. Allogeneic PRP contained 4.1-fold and 2.7- to 4.9-fold higher amount of platelets and growth factors than whole blood, respectively. The intramuscular injection of allogeneic PRP to rabbits did not trigger severe and chronic immunoresponse, evidenced by little change in muscular tissue microstructure and CD4+/CD8+ T lymphocyte subpopulation in peripheral blood. The implantation of allogeneic PRP/deproteinized bone matrix (DPB) constructs (PRP + DPB) successfully bridged 1.5-cm segmental radial defects in rabbits, achieving similar healing capacity as autologous MSC/DPB constructs (MSC + DPB), with greater bone formation (1.1–1.5x, p < 0.05) and vascularization (1.3–1.6x, p < 0.05) than DPB alone, shown by histomorphometric analysis, bone mineral density measurement, and radionuclide bone imaging. Furthermore, the implantation of both allogeneic PRP- and autologous MSC-mediated DPB constructs (PRP + MSC + DPB) resulted in the most robust bone regeneration (1.2–2.1x, p < 0.05) and vascularization (1.3–2.0x, p < 0.05) than others (PRP + DPB, MSC + DPB, or DPB alone). This study has demonstrated the promising use of allogeneic PRP for bone defect treatment with negligible immunogenicity, great healing efficacy, potentially more consistent quality, and no additional health burden to patients; additionally, the synergetic enhancing effect found between allogeneic PRP and autologous MSCs may shed a light on developing new therapeutic strategies for large bone defect treatment.
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Affiliation(s)
- Zhi-Yong Zhang
- Institute of Orthopaedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, People's Republic of China
| | - Ai-Wen Huang
- Department of Orthopaedics, the 309th Hospital of the PLA, Beijing, People's Republic of China
| | - Jun Jun Fan
- Institute of Orthopaedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, People's Republic of China
| | - Kuanhai Wei
- Institute of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Dan Jin
- Institute of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Bin Chen
- Institute of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Dan Li
- Institute of Orthopaedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, People's Republic of China
| | - Long Bi
- Institute of Orthopaedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, People's Republic of China
| | - Jun Wang
- Institute of Orthopaedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, People's Republic of China
| | - Guoxian Pei
- Institute of Orthopaedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, People's Republic of China
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Liu Y, Jiang T, Zhou Y, Zhang Z, Wang Z, Tong H, Shen X, Wang Y. Evaluation of the attachment, proliferation, and differentiation of osteoblast on a calcium carbonate coating on titanium surface. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.03.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hsu JT, Fuh LJ, Tu MG, Li YF, Chen KT, Huang HL. The effects of cortical bone thickness and trabecular bone strength on noninvasive measures of the implant primary stability using synthetic bone models. Clin Implant Dent Relat Res 2011; 15:251-61. [PMID: 21599830 DOI: 10.1111/j.1708-8208.2011.00349.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE This study investigated how the primary stability of a dental implant as measured by the insertion torque value (ITV), Periotest value (PTV), and implant stability quotient (ISQ) is affected by varying thicknesses of cortical bone and strengths of trabecular bone using synthetic bone models. MATERIALS AND METHODS Four synthetic cortical shells (with thicknesses of 0, 1, 2, and 3 mm) were attached to four cellular rigid polyurethane foams (with elastic moduli of 137, 47.5, 23, and 12.4 MPa) and one open-cell rigid polyurethane foam which mimic the osteoporotic bone (with an elastic modulus 6.5 MPa), to represent the jawbones with various cortical bone thicknesses and strengths of trabecular bone. A total of 60 bone specimens accompanied with implants was examined by a torque meter, Osstell resonance frequency analyzer, and Periotest electronic device. All data were statistically analyzed by two-way analysis of variance. In addition, second-order nonlinear regression was utilized to assess the correlations of the primary implant stability with the four cortex thicknesses and five strengths of trabecular bone. RESULTS ITV, ISQ, and PTV differed significantly (p < .05) and were strongly correlated with the thickness of cortical bone (R(2) > 0.9) and the elastic modulus of trabecular bone (R(2) = 0.74-0.99). CONCLUSIONS The initial stability at the time of implant placement is influenced by both the cortical bone thickness and the strength of trabecular bone; however, these factors are mostly nonlinearly correlated with ITV, PTV, and ISQ. Using ITV and PTV seems more suitable for identifying the primary implant stability in osteoporotic bone with a thin cortex.
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Affiliation(s)
- Jui-Ting Hsu
- School of Dentistry, China Medical University, Taiwan
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Zhang Z, Jiang T, Ma K, Cai X, Zhou Y, Wang Y. Low temperature electrophoretic deposition of porous chitosan/silk fibroin composite coating for titanium biofunctionalization. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm04164e] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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28
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Jiang T, Zhang Z, Zhou Y, Liu Y, Wang Z, Tong H, Shen X, Wang Y. Surface Functionalization of Titanium with Chitosan/Gelatin via Electrophoretic Deposition: Characterization and Cell Behavior. Biomacromolecules 2010; 11:1254-60. [PMID: 20361762 DOI: 10.1021/bm100050d] [Citation(s) in RCA: 130] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Tao Jiang
- Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, People’s Republic of China, and Institute of Analytical and Biomedical Sciences, School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Zhen Zhang
- Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, People’s Republic of China, and Institute of Analytical and Biomedical Sciences, School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Yi Zhou
- Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, People’s Republic of China, and Institute of Analytical and Biomedical Sciences, School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Yi Liu
- Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, People’s Republic of China, and Institute of Analytical and Biomedical Sciences, School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Zhejun Wang
- Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, People’s Republic of China, and Institute of Analytical and Biomedical Sciences, School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Hua Tong
- Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, People’s Republic of China, and Institute of Analytical and Biomedical Sciences, School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Xinyu Shen
- Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, People’s Republic of China, and Institute of Analytical and Biomedical Sciences, School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Yining Wang
- Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, People’s Republic of China, and Institute of Analytical and Biomedical Sciences, School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
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Zhou W, Han C, Yunming L, Li D, Song Y, Zhao Y. Is the osseointegration of immediately and delayed loaded implants the same?���comparison of the implant stability during a 3-month healing period in a prospective study. Clin Oral Implants Res 2009; 20:1360-6. [DOI: 10.1111/j.1600-0501.2009.01757.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Capek L, Simunek A, Slezak R, Dzan L. Influence of the orientation of the Osstell® transducer during measurement of dental implant stability using resonance frequency analysis: A numerical approach. Med Eng Phys 2009; 31:764-9. [DOI: 10.1016/j.medengphy.2009.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Revised: 02/03/2009] [Accepted: 02/05/2009] [Indexed: 11/27/2022]
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31
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Hübler R, Blando E, Gaião L, Kreisner PE, Post LK, Xavier CB, de Oliveira MG. Effects of low-level laser therapy on bone formed after distraction osteogenesis. Lasers Med Sci 2009; 25:213-9. [DOI: 10.1007/s10103-009-0691-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Accepted: 05/22/2009] [Indexed: 10/20/2022]
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The effect of 904 nm low level laser on condylar growth in rats. Lasers Med Sci 2009; 25:61-5. [PMID: 19238504 DOI: 10.1007/s10103-009-0651-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2007] [Accepted: 01/28/2009] [Indexed: 10/21/2022]
Abstract
A growth center of the mandible that contributes to its length and height is the mandibular condyle. Proliferation of prechondroblasts, followed by synthesis of the extracellular matrix and hypertrophy of the cartilage cells, governs the major part of condylar growth. The sample consisted of 54 male rats, weighing between 60 g and 80 g, divided randomly into three groups. Group I was the control group, group II was irradiated bilaterally, and group III was irradiated on the right side. Laser irradiation (lambda = 904 nm, 2000 Hz, pulse length 200 ns and output power 4 mW) was performed, and the procedure was repeated after a 50-day interval. Two months later, the rats were killed. In a single blind manner the lengths of denuded mandibles and the lengths of mandibles on soft tissue were measured. The growth of the mandibles in the unilaterally irradiated group (P < 0.001) and the bilaterally irradiated group (P < 0.05) was significantly more than that in the control group. There was no significant difference between right and left condylar growth in the bilaterally irradiated group (P = 0.3). Soft tissue analysis also verified these results (P < 0.001). Histomorphometric results also revealed a significant difference between laser-irradiated groups and the control group (P < 0.01). We concluded that particular laser irradiation with the chosen parameters can stimulate condylar growth and subsequently cause mandibular advancement. These findings might be clinically relevant, indicating that low level laser irradiation can be used for further improvement of mandibular retrognathism.
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