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Elkabany AH, Hakim AAA, Mahmoud SA, Gaweesh YY. Clinical and biochemical assessment of the soft tissue response to titanium stock versus custom composite resin healing abutments. J Prosthet Dent 2024:S0022-3913(24)00458-X. [PMID: 39060157 DOI: 10.1016/j.prosdent.2024.06.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024]
Abstract
STATEMENT OF PROBLEM Custom healing abutments made of flowable composite resin have gained popularity, although the soft tissue response to composite resin has not been adequately studied. PURPOSE The purpose of this randomized controlled clinical trial was to evaluate the soft tissue response to titanium stock healing abutments and custom composite resin healing abutments by assessing clinical indices and the level of matrix metalloproteinase-8 (MMP-8) in the peri-implant crevicular fluid (PICF). MATERIAL AND METHODS A randomized controlled clinical trial was performed on 42 osseointegrated implants. The implants were divided into 2 groups: a test group comprising 21 custom composite resin healing abutments that were attached to the implants at second stage surgery and a control group comprising 21 stock titanium healing abutments. Plaque index (PL), bleeding on probing (BOP), modified gingival index (MGI), and level of MMP8 were measured at the second and fourth week after second stage surgery. Peri-implant crevicular fluid was collected by paper points at each follow-up, and the level of MMP8 was measured by an enzyme-linked immunosorbent assay kit. For statistical analysis, group comparisons used the Mann-Whitney U test, and comparisons within each group at 2 and 4 weeks used the Wilcoxon Sign Rank test. Group differences were analyzed with the Fisher exact test, and the McNemar test was used to compare percentages at 2 and 4 weeks. All tests were two-tailed (α=.05). RESULTS For the PI, no statistically significant differences were found within groups or between groups (P>.05). Bleeding on probing was positive in 14.3% of titanium abutments versus 20% of composite resin abutments at 4 weeks, with no significant difference between groups (P>.05). Similarly, the mean MGI was 0.38 ±0.5 in the control group while it was 0.4 ±0.5 in the test group, with no significant differences between groups (P>.05). The MMP8 level at 2 weeks was 11.1 ±8.65 and 13.11 ±9.29 for the control and test groups, respectively while it was 16.35 ±8.31 and 19.80 ±8.44 at 4 weeks, showing a statistically significant increase within groups (P<.05). No significant difference between groups was detected at either follow-up time point regarding MMP8 level (P>.05). CONCLUSIONS The clinical and biochemical soft tissue response to composite resin healing abutments and titanium stock healing abutments were comparable, suggesting the clinical safety of custom composite resin healing abutments.
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Affiliation(s)
- Ahmed Hesham Elkabany
- Postgraduate student, Clinical Master of Oral Implantology, Alexandria University, Alexandria, Egypt
| | | | | | - Yasmine Youssri Gaweesh
- Associate Professor, Department of Periodontology, Alexandria University, Alexandria, Egypt.
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Ribeiro RF, Oliveira DF, Tovani CB, Ramos AP, Borges AFS, Faria ACL, de Almeida RP, Rodrigues RCS. Y-TZP Physicochemical Properties Conditioned with ZrO 2 and SiO 2 Nanofilms and Bond Strength to Dual Resin Cement. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7905. [PMID: 36431390 PMCID: PMC9694964 DOI: 10.3390/ma15227905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/24/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Commercial Yttria-tetragonal zirconia polycrystalline (Y-TZP) was subjected to surface treatments, and the bond strength of dual resin cement to Y-TZP and failure modes were evaluated. Disks (12 mm × 2 mm), cylinders (7 mm × 3.3 mm), and bars (25 mm × 5 mm × 2 mm) were milled from Y-TZP CAD-CAM blocks, divided into seven groups, and subjected to different surface treatments; silicatization was used as control. On the basis of the literature, this study evaluated modifications with films containing SiO2 nanoparticles and silane; SiO2+ZrO2—SiO2 (50%) and ZrO2 (50%) nanoparticles, SiO2+ZrO2/Silane-SiO2 (50%) and ZrO2 (50%) nanoparticles, and silane. Specimens were analyzed by wettability (n = 3), surface free energy (n = 3), X-ray diffraction (n = 1), Fourier transform infrared spectroscopy (FTIR) (n = 1), roughness (n = 5), shear bond test (n = 10), and dynamic modulus (n = 3). Specimens treated with hydrofluoric acid—HF 40% presented significantly higher contact angle and lowest surface free energy (p < 0.05). The SiO2/Silane presented crystalline SiO2 on the surface. The surface roughness was significantly higher for groups treated with nanofilms (p < 0.05). Shear bond strength was significantly higher for silicatization, HF 40%/silicatization, SiO2/Silane, and SiO2+ZrO2/Silane groups. The proposed treatments with nanofilms had potentially good results without prejudice to the physicochemical characteristics of zirconia. Generally, groups that underwent silica surface deposition and silanization had better bond strength (p < 0.005).
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Affiliation(s)
- Ricardo Faria Ribeiro
- Department of Dental Materials and Prosthodontics, Ribeirao Preto School of Dentistry, University of Sao Paulo-FORP-USP, Ribeirao Preto 14040-904, SP, Brazil
| | - Danilo Flamini Oliveira
- Department of Dental Materials and Prosthodontics, Ribeirao Preto School of Dentistry, University of Sao Paulo-FORP-USP, Ribeirao Preto 14040-904, SP, Brazil
| | - Camila Bussola Tovani
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, University of Sao Paulo-FFCLRP-USP, Ribeirao Preto 14040-901, SP, Brazil
| | - Ana Paula Ramos
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, University of Sao Paulo-FFCLRP-USP, Ribeirao Preto 14040-901, SP, Brazil
| | - Ana Flavia Sanches Borges
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo-FOB/USP, Bauru 17012-901, SP, Brazil
| | - Adriana Claudia Lapria Faria
- Department of Dental Materials and Prosthodontics, Ribeirao Preto School of Dentistry, University of Sao Paulo-FORP-USP, Ribeirao Preto 14040-904, SP, Brazil
| | - Rossana Pereira de Almeida
- Department of Dental Materials and Prosthodontics, Ribeirao Preto School of Dentistry, University of Sao Paulo-FORP-USP, Ribeirao Preto 14040-904, SP, Brazil
| | - Renata Cristina Silveira Rodrigues
- Department of Dental Materials and Prosthodontics, Ribeirao Preto School of Dentistry, University of Sao Paulo-FORP-USP, Ribeirao Preto 14040-904, SP, Brazil
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Haugen HJ, Chen H. Is There a Better Biomaterial for Dental Implants than Titanium?—A Review and Meta-Study Analysis. J Funct Biomater 2022; 13:jfb13020046. [PMID: 35645254 PMCID: PMC9149859 DOI: 10.3390/jfb13020046] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/28/2022] [Accepted: 04/15/2022] [Indexed: 02/04/2023] Open
Abstract
This article focuses on preclinical studies and reviews the available evidence from the literature on dental implant and abutment materials in the last decade. Specifically, different peri-implantitis materials and how surface modifications may affect the peri-implant soft-tissue seal and subsequently delay or hinder peri-implantitis are examined. This review analyzed more than 30 studies that were Randomized Controlled Trials (RCTs), Controlled Clinical Trials (CCTs), or prospective case series (CS) with at least six months of follow-up. Meta-analyses were performed to make a comparison between different implant materials (titanium vs. zirconia), including impact on bone changes, probing depth, plaque levels, and peri-implant mucosal inflammation, as well as how the properties of the implant material and surface modifications would affect the peri-implant soft-tissue seal and peri-implant health conditions. However, there was no clear evidence regarding whether titanium is better than other implant materials. Clinical evidence suggests no difference between different implant materials in peri-implant bone stability. The metal analysis offered a statistically significant advantage of zirconia implants over titanium regarding developing a favorable response to the alveolar bone.
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Affiliation(s)
- Håvard J. Haugen
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0318 Oslo, Norway
- Correspondence:
| | - Hongyu Chen
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;
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Accioni F, Vázquez J, Merinero M, Begines B, Alcudia A. Latest Trends in Surface Modification for Dental Implantology: Innovative Developments and Analytical Applications. Pharmaceutics 2022; 14:455. [PMID: 35214186 PMCID: PMC8876580 DOI: 10.3390/pharmaceutics14020455] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 12/27/2022] Open
Abstract
An increase in the world population and its life expectancy, as well as the ongoing concern about our physical appearance, have elevated the relevance of dental implantology in recent decades. Engineering strategies to improve the survival rate of dental implants have been widely investigated, focusing on implant material composition, geometry (usually guided to reduce stiffness), and interface surrounding tissues. Although efforts to develop different implant surface modifications are being applied in commercial dental prostheses today, the inclusion of surface coatings has gained special interest, as they can be tailored to efficiently enhance osseointegration, as well as to reduce bacterial-related infection, minimizing peri-implantitis appearance and its associated risks. The use of biomaterials to replace teeth has highlighted the need for the development of reliable analytical methods to assess the therapeutic benefits of implants. This literature review considers the state-of-the-art strategies for surface modification or coating and analytical methodologies for increasing the survival rate for teeth restoration.
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Affiliation(s)
- Francesca Accioni
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
| | - Juan Vázquez
- Departamento de Química Orgánica, Universidad de Sevilla, 41012 Seville, Spain;
| | - Manuel Merinero
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
- Departamento de Citología e Histología Normal y Patológica, Universidad de Sevilla, 41012 Seville, Spain
| | - Belén Begines
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
| | - Ana Alcudia
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
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Impact of Implant Surface Material and Microscale Roughness on the Initial Attachment and Proliferation of Primary Human Gingival Fibroblasts. BIOLOGY 2021; 10:biology10050356. [PMID: 33922217 PMCID: PMC8145850 DOI: 10.3390/biology10050356] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/13/2021] [Accepted: 04/20/2021] [Indexed: 12/17/2022]
Abstract
Due to the rising demand for zirconia (Zr) based implant systems, it is important to understand the impact of Zr and titanium (Ti) implants and particularly their topography on soft tissue healing. As human gingival fibroblasts (hGFs) are the predominant cells in peri-implant soft tissue, we focused on examining the effect of implant material and surface roughness on hGFs' initial attachment, growth and the expression of proteins involved in the focal adhesion. hGFs isolated from eight healthy donors were cultured on the following surfaces: smooth titanium machined surface (TiM), smooth zirconia machined surface (ZrM), moderately rough titanium surface (SLA), or moderately rough zirconia surface (ZLA) for up to 14 days. The initial attachment of hGFs was evaluated by scanning electron microscopy. Cell proliferation/viability was assessed by cell counting kit 8. Focal adhesion and cytoskeleton were visualized by a focal adhesion staining kit. The gene expression of focal adhesion kinase (FAK), α-smooth muscle actin (α-SMA), and integrin subunits ITG-β1, ITG-β4, ITG-α4, ITG-α5, ITG-α6, was evaluated by qPCR. Cell proliferation/viability was slightly decreased by moderately rough surfaces, whereas no effect of surface material was observed. Cell morphology was strikingly different between differently treated surfaces: on machined surfaces, cells had elongated morphology and were attached along the grooves, whereas on moderately rough surfaces, cells were randomly attached. Surface roughness had a more pronounced effect on the gene expression compared to the surface material. The expression of FAK, α-SMA, ITG-β4, ITG-α5, and ITG-α6 was enhanced by moderately rough surfaces compared to smooth surfaces. Within the limitations of this in vitro study, it can be concluded that the behavior of primary hGFs is primarily affected by surface structure, whereas no apparent advantage of Zr over Ti could be observed.
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Kniha K, Heussen N, Modabber A, Hölzle F, Möhlhenrich SC. The effect of zirconia and titanium surfaces on biofilm formation and on host-derived immunological parameters. Int J Oral Maxillofac Surg 2021; 50:1361-1374. [PMID: 33618967 DOI: 10.1016/j.ijom.2021.01.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 01/15/2023]
Abstract
The aim of this study was to analyse the effect of zirconia and titanium surfaces on biofilm formation and host-derived parameters. Studies comparing zirconia and titanium surfaces were selected up to September 1, 2019. The outcome measures were surface roughness, contact angle, bacterial count, bacterial adherence, biofilm thickness, bacterial distribution, and specifically investigated biofilm and specific host-derived immunological parameters. Random-effects meta-analyses of in vitro and in vivo studies were conducted. A total of 39 studies were included for data extraction. In the systematic review data, 10 studies stated that zirconia accumulated less initial oral biofilm parameters, 16 investigations showed negligible inter-material differences, and only one study showed that zirconia attracted the most biofilm. However, in the meta-analysis, the bacterial coverage was found to be significantly superior for zirconia surfaces (P< 0.00001); the other outcome measures did not show any statistically significant differences between zirconia and titanium for the remaining parameters and the studies presented a substantial degree of heterogeneity. Overall, on the basis of the meta-analysis, the current data situation does not allow a clear preference for the use of zirconia or titanium.
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Affiliation(s)
- K Kniha
- Department of Oral and Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany; Private Clinic for Oral and Maxillofacial Surgery, Munich, Germany.
| | - N Heussen
- Department of Medical Statistics, University Hospital of Aachen, Aachen, Germany
| | - A Modabber
- Department of Oral and Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - F Hölzle
- Department of Oral and Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - S C Möhlhenrich
- Department of Orthodontics, University of Witten/Herdecke, Witten, Germany
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7
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Kaliyatz TV, Solovykh EA, Gershtein ES, Kushlinskii NE. Comparative Analysis of MMP-8 and MMP-9 Concentrations in Crevicular and Peri-Implants Sulcular Fluids. Bull Exp Biol Med 2020; 170:19-23. [PMID: 33219886 DOI: 10.1007/s10517-020-04996-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Indexed: 11/26/2022]
Abstract
The concentrations of MMP-8 and MMP-9 were measured in the crevicular and the peri-implant sulcular fluids at the different stages of the prosthetic treatment. The concentration MMP-8 and MMP-9 in the peri-implant sulcular fluids were significantly higher (p<0.05) then in the gingival crevicular fluid. The determined parameters are the references values for dynamic observation over the functional state of the dental "implant-bone-soft" tissue system. The detected the correlations attest to synergy between secretion of MMP-8 and MMP-9 in the peri-implant sulcular fluid and allow analysis of the dependence of the secretion of these metalloproteinases on clinical and physiological peculiarities of the gingiva, which will help to better customize implant-supported prosthetic treatment of the patients.
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Affiliation(s)
- T V Kaliyatz
- Department of Orthopedic Dentistry, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - E A Solovykh
- Department of Orthopedic Dentistry, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia.
| | - E S Gershtein
- A. I. Evdokimov Moscow State University of Medicine and Dentistry, Ministry of Health of the Russian Federation, Moscow, Russia
| | - N E Kushlinskii
- A. I. Evdokimov Moscow State University of Medicine and Dentistry, Ministry of Health of the Russian Federation, Moscow, Russia
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8
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Gul SS, Abdulkareem AA, Sha AM, Rawlinson A. Diagnostic Accuracy of Oral Fluids Biomarker Profile to Determine the Current and Future Status of Periodontal and Peri-Implant Diseases. Diagnostics (Basel) 2020; 10:E838. [PMID: 33081038 PMCID: PMC7603129 DOI: 10.3390/diagnostics10100838] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/10/2020] [Accepted: 10/16/2020] [Indexed: 02/06/2023] Open
Abstract
Severe periodontitis is ranked as the sixth most prevalent disease affecting humankind, with an estimated 740 million people affected worldwide. The diagnosis of periodontal diseases mainly relies upon assessment of conventional clinical parameters. However, these parameters reflect past, rather than current, clinical status or future disease progression and, likely, outcome of periodontal treatment. Specific and sensitive biomarkers for periodontal diseases have been examined widely to address these issues and some biomarkers have been translated as point-of-care (PoC) tests. The aim of this review was to provide an update on PoC tests for use in the diagnosis and management of periodontal diseases. Among the PoC tests developed so far, active matrix metalloproteinase-8 has shown promising results in terms of diagnostic and prognostic values. However, further studies are required to increase the sensitivity and specificity via combining more than one biomarker and merging these test kits with periodontal risk assessment tools. Furthermore, the validity of these test kits needs to be investigated by applying the results in further independent studies and the impact on these test kits', together with the results of risk factors for periodontal diseases, such as diabetes and smoking, also needs to be examined.
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Affiliation(s)
- Sarhang S. Gul
- College of Dentistry, Periodontics Department, University of Sulaimani, Sulaymaniyah 1124–30, Iraq;
| | - Ali A. Abdulkareem
- Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad 10011, Iraq;
| | - Aram M. Sha
- College of Dentistry, Periodontics Department, University of Sulaimani, Sulaymaniyah 1124–30, Iraq;
| | - Andrew Rawlinson
- Academic Unit of Restorative Dentistry, School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK;
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Khurshid Z, Warsi I, Moin SF, Slowey PD, Latif M, Zohaib S, Zafar MS. Biochemical analysis of oral fluids for disease detection. Adv Clin Chem 2020; 100:205-253. [PMID: 33453866 DOI: 10.1016/bs.acc.2020.04.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The field of diagnostics using invasive blood testing represents the majority of diagnostic tests used as part of routine health monitoring. The relatively recent introduction of salivary diagnostics has lead to a major paradigm shift in diagnostic analyses. Additionally, in this era of big data, oral fluid testing has shown promising outcomes in a number of fields, particularly the areas of genomics, microbiomics, proteomics, metabolomics, and transcriptomics. Despite the analytical challenges involved in the interpretation of large datasets generated from biochemical studies involving bodily fluids, including saliva, many studies have identified novel oral biomarkers for diagnosing oral and systemic diseases. In this regard, oral biofluids, including saliva, gingival crevicular fluid (GCF), peri-implant crevicular fluid (PICF), dentinal tubular fluid (DTF), are now attracting increasing attention due to their important attributes, such as noninvasive sampling, easy handling, low cost, and more accurate diagnosis of oral diseases. Recently, the utilization of salivary diagnostics to evaluate systemic diseases and monitor general health has increased in popularity among clinicians. Saliva contains a wide range of protein, DNA and RNA biomarkers, which assist in the diagnosis of multiple diseases and conditions, including cancer, cardiovascular diseases (CVD), auto-immune and degenerative diseases, respiratory infections, oral diseases, and microbial (viral, bacterial and fungal) diseases. Moreover, due to its noninvasive nature and ease-of-adoption by children, it is now being used in mass screening programs, oral health-related studies and clinical trials in support of the development of therapeutic agents. The recent advent of highly sensitive technologies, such as next-generation sequencing, mass spectrometry, highly sensitives ELISAs, and homogeneous immunoassays, suggests that even small quantities of salivary biomarkers are able to be assayed accurately, providing opportunities for the development of many future diagnostic applications (including emerging technologies, such as point-of-care and rapid molecular technologies). The present article explores the omics and biochemical compositions of various oral biofluids with important value in diagnostics and monitoring.
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Affiliation(s)
- Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Ibrahim Warsi
- Masters in Medical Science and Clinical Investigation, Harvard Medical School, Boston, MA, United States
| | - Syed F Moin
- National Center for Proteomics, University of Karachi, Karachi, Pakistan
| | - Paul D Slowey
- Oasis Diagnostics® Corporation, Vancouver, WA, United States
| | - Muhammad Latif
- Centre for Genetics and Inherited Diseases (CGID), Taibah University, Al Madinah Al Munawwarah, Saudi Arabia
| | - Sana Zohaib
- Department of Biomedical Engineering, College of Engineering, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Muhammad S Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah Al Munawwarah, Saudi Arabia; Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad, Pakistan.
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Affiliation(s)
- Takao HANAWA
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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11
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Li W, Yang Y, Zhang H, Xu Z, Zhao L, Wang J, Qiu Y, Liu B. Improvements on biological and antimicrobial properties of titanium modified by AgNPs-loaded chitosan-heparin polyelectrolyte multilayers. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:52. [PMID: 31016469 DOI: 10.1007/s10856-019-6250-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 04/03/2019] [Indexed: 05/11/2023]
Abstract
Microbial infection around dental implants is a major cause for the loss of devices, including soft tissue infection in early period, post-operation peri-implantitis, and osseointegration failure. Silver nanoparticles (AgNPs) with wide antimicrobial spectrum, strong antimicrobial effect and hypotoxicity, as well as low incidence of antibiotic resistance, are widely involved in biomedical applications. Herein, firmly anchoring AgNPs onto the surface of implants through physical-chemical reaction is likely to relieve the above issues. In this study, AgNPs were biosynthesized by a simple and "green" method with chitosan (CS) as stabilizing and reducing agents. Then, AgNPs-loaded CS-heparin polyelectrolyte multilayers (PEMs) were constructed on alkali-heat treated titanium (Ti) substrates via layer-by-layer (LbL) self-assembly technique. The successful surface modification could be confirmed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS), and the constructed system could provide the continuous release of Ag+ over 28 days till mucosa healing. In short, this work revealed that the construction of multilayer coatings containing AgNPs on Ti substrates promoted adhesion and proliferation of human gingival fibroblasts (HGFs) and also enhanced the antimicrobial properties. This manifests the LbL technique is a viable and promising method for forming continuous antimicrobial coatings, to reduce microbial infection and improve the quality of peri-implant soft tissue seal. The preparation process of AgNPs-loaded CS-heparin PEMs on Ti substrate.
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Affiliation(s)
- Wen Li
- School of Stomatology, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yanwei Yang
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Military Area Command, PLA, Lanzhou, 730050, P. R. China
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Hongchen Zhang
- School of Stomatology, Lanzhou University, Lanzhou, 730000, P. R. China
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Military Area Command, PLA, Lanzhou, 730050, P. R. China
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, P. R. China
- School of Nursing, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zexian Xu
- School of Stomatology, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Libo Zhao
- School of Stomatology, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Jinqing Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Yinong Qiu
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Military Area Command, PLA, Lanzhou, 730050, P. R. China.
| | - Bin Liu
- School of Stomatology, Lanzhou University, Lanzhou, 730000, P. R. China.
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Al-Majid A, Alassiri S, Rathnayake N, Tervahartiala T, Gieselmann DR, Sorsa T. Matrix Metalloproteinase-8 as an Inflammatory and Prevention Biomarker in Periodontal and Peri-Implant Diseases. Int J Dent 2018; 2018:7891323. [PMID: 30305812 PMCID: PMC6165625 DOI: 10.1155/2018/7891323] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 08/08/2018] [Indexed: 12/11/2022] Open
Abstract
Levels of and especially the degree of activation of matrix metalloproteinase (MMP-8) in oral fluids (i.e., saliva, mouth rinse, gingival crevicular fluid (GCF) and peri-implantitis sulcular fluid (PISF)) increase to pathologically elevated levels in the periodontal and peri-implant diseases. This study aimed at collecting and collating data from previously published studies and determining whether active MMP-8 (aMMP-8) could serve as a biomarker for the diagnosis and prevention of periodontal and peri-implant diseases. The literature search identified a total of 284 articles. Out of 284 articles, 61 articles were found to be relevant. Data obtained from the selected studies were combined, and it indicated that aMMP-8 in oral fluids exerts the strong potential to serve as a useful adjunctive diagnostic and preventive biotechnological tool in periodontal and peri-implant diseases. aMMP-8 can be used alone or in combination with other proinflammatory and/or microbiological biomarkers.
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Affiliation(s)
- Ahmed Al-Majid
- Clinic of Preventive Dentistry, Periodontology and Cariology, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Saeed Alassiri
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Nilminie Rathnayake
- Karolinska Institutet, Department of Dental Medicine, Division of Periodontology, Stockholm, Sweden
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Dirk-Rolf Gieselmann
- Institute of Molecular Diagnostics, Dentognostics GmbH, Solingen and Jena, Germany
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Karolinska Institutet, Department of Dental Medicine, Division of Periodontology, Stockholm, Sweden
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Influence of Grit-Blasting and Hydrofluoric Acid Etching Treatment on Surface Characteristics and Biofilm Formation on Zirconia. COATINGS 2017. [DOI: 10.3390/coatings7080130] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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