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Michels R, Kampleitner C, Dobsak T, Doppelmayer K, Heimel P, Lettner S, Tangl S, Gruber R, Benfatti CAM. Impact of a Static Magnetic Field on Early Osseointegration: A Pilot Study in Canines. Materials (Basel) 2023; 16:1846. [PMID: 36902964 PMCID: PMC10003792 DOI: 10.3390/ma16051846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
A static magnetic field generated by neodymium-iron-boron (NdFeB) magnets placed in the inner cavity of dental implants can enhance bone regeneration in rabbits. It is, however, unknown whether static magnetic fields support osseointegration in a canine model. We therefore determined the potential osteogenic effect of implants carrying NdFeB magnets inserted in the tibia of six adult canines in the early stages of osseointegration. Here, we report that after 15 days of healing, magnetic and regular implants showed a high variation with a median new bone-to-implant contact (nBIC) in the cortical (41.3% and 7.3%) and the medullary (28.6% and 44.8%) region, respectively. Consistently, the median new bone volume/tissue volume (nBV/TV) in the cortical (14.9% and 5.4%) and the medullary (22.2% and 22.4%) region were not significantly different. One week of healing only resulted in negligible bone formation. These findings suggest that considering the large variation and the pilot nature of this study, magnetic implants failed to support peri-implant bone formation in a canine model.
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Affiliation(s)
- Roberta Michels
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Universidade Federal de Santa Catarina (UFSC), Florianópolis 88036-020, Brazil
- Robert K. Schenk Laboratory of Oral Histology, Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Carina Kampleitner
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Toni Dobsak
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Kevin Doppelmayer
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Patrick Heimel
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Stefan Lettner
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Stefan Tangl
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Reinhard Gruber
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Department of Oral Biology, Medical University of Vienna, 1090 Vienna, Austria
| | - César Augusto Magalhães Benfatti
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Universidade Federal de Santa Catarina (UFSC), Florianópolis 88036-020, Brazil
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Scheeren Brum R, Apaza-Bedoya K, Labes LG, Volpato CÂM, Pimenta AL, Benfatti CAM. Early Biofilm Formation on Rough and Smooth Titanium Specimens: a Systematic Review of Clinical Studies. J Oral Maxillofac Res 2021; 12:e1. [PMID: 35222868 PMCID: PMC8807145 DOI: 10.5037/jomr.2021.12401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/22/2021] [Indexed: 11/18/2022]
Abstract
Objectives There is a concern whether the enhancement on implant surface roughness is responsible for higher biofilm formation, which acts as an aetiological factor for peri-implant diseases. The aim of the present systematic review was to answer the following question: “Are rough surfaces more susceptible to early biofilm formation when compared to smoother surfaces on titanium specimens?”. Material and Methods The research was performed on PubMed, Web of Science and Scopus, up to August 2021. Eligibility criteria included studies that analysed human biofilm formation on titanium specimens with distinct surface roughness (smooth vs minimally, moderate, or rough) over the experimental times of 1 or 3 days. Roughness average (Ra) and biofilm analysis parameters were extracted from selected articles. Risk of bias was evaluated using the Checklist for Quasi-Experimental Studies. Results Of 5286 papers, 5 were included and analysed. Smooth titanium surfaces included machined and anodized titanium/Ti-6Al-4V; machined and acid etched TiZr. Minimally, moderately, or rough surfaces comprised titanium and titanium alloys (TiZr, Ti-6Al-4V), that received surface treatments (anodization, acid-etching, blasting, hydroxyapatite-coating). No statistically significant difference on biofilm formation on rough and smooth titanium surfaces was reported by 3 studies, while more contamination on rough titanium surfaces was stated by 2 investigations. An isolated smooth surface has also been associated to higher contamination. Moderate to high quality methodological assessment of studies were identified. Conclusions It is not possible to assume that rough surfaces are more susceptible to early biofilm formation than smooth titanium surfaces. Additional studies are required to study this multifarious interaction.
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Affiliation(s)
- Renata Scheeren Brum
- Department of Dentistry, Center for Research On Dental Implants (CEPID), Federal University of Santa Catarina, FlorianopolisBrazil.
| | - Karin Apaza-Bedoya
- Department of Dentistry, Center for Research On Dental Implants (CEPID), Federal University of Santa Catarina, FlorianopolisBrazil.
| | - Luiza Gomes Labes
- Department of Dentistry, Center for Research On Dental Implants (CEPID), Federal University of Santa Catarina, FlorianopolisBrazil.
| | - Cláudia Ângela Maziero Volpato
- Department of Dentistry, Center for Research On Dental Implants (CEPID), Federal University of Santa Catarina, FlorianopolisBrazil.
| | - Andrea Lima Pimenta
- Department of Chemical Engineering, Integrated Laboratories Technologies (InteLAB), Federal University of Santa Catarina, FlorianopolisBrazil.
- Department of Biology, ERRMECe, Université de Cergy Pontoise, Maison Internationale de la Recherche, Rue Descartes 95000 Neuville sur Oise CedexFrance.
| | - César Augusto Magalhães Benfatti
- Department of Dentistry, Center for Research On Dental Implants (CEPID), Federal University of Santa Catarina, FlorianopolisBrazil.
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Ribeiro Martins SC, Magrin GL, Joly JC, Benfatti CAM, Bianchini MA, Peruzzo DC. Histologic and histomorphometric analysis of two biomaterials of xenogenous origin for maxillary sinus elevation: a clinical study. Quintessence Int 2021; 52:248-256. [PMID: 33491394 DOI: 10.3290/j.qi.a45601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Objective: This study analyzed two xenogenous biomaterials based on deproteinized bovine bone mineral applied for maxillary sinus elevation. Method and materials: Fourteen patients were submitted to maxillary sinus augmentation with one of the following biomaterials: Criteria Lumina Bone Porous (test group) or Geistlich Bio-Oss (control group), both of large granules (1 to 2 mm). After 6 months, trephine biopsies were collected at the time of implant placement: 27 samples (11 patients) in the test group; 7 samples (3 patients) in the control group. Biopsies were analyzed by descriptive histology and histomorphometry, in which the percentages of newly formed bone, residual biomaterial particles, and connective tissue were evaluated. Results: Histomorphometry showed means for test and control groups, respectively, of 32.41% ± 9.42% and 26.59% ± 4.88% for newly formed bone, 22.89% ± 4.58% and 25.00% ± 4.81% for residual biomaterial, and 44.70% ± 9.54% and 48.41% ± 3.36% for connective tissue. There were no differences between groups (P > .05). Conclusion: This study concluded that Criteria Lumina Bone Porous presented similar histologic and histomorphometric characteristics to Geistlich Bio-Oss 6 months after sinus elevation surgery, identifying the tested biomaterial as an interesting alternative for bone augmentation in the maxillary sinus.
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Brum RS, Duarte PM, Canto GDL, Flores-Mir C, Benfatti CAM, Porporatti AL, Zimmermann GS. Biomarkers in biological fluids in adults with periodontitis and/or obesity: A meta-analysis. J Indian Soc Periodontol 2020; 24:191-215. [PMID: 32773969 PMCID: PMC7307467 DOI: 10.4103/jisp.jisp_512_19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 02/22/2020] [Accepted: 03/01/2020] [Indexed: 12/12/2022] Open
Abstract
Obesity and periodontal diseases have been investigated to be interconnected, but the molecular mechanism underlying this association is still not clear. The aim of this systematic review is to assess the association of serum, salivary and gingival crevicular fluid (GCF) inflammatory markers (IMs), obesity, and periodontitis. Studies that evaluated IM of adults according to obesity status (O) and periodontitis status (P) (O+P+; O-P+; O+P-) were screened on several electronic databases and grey literature up until February 2019. Risk of bias assessment and level of evidence were evaluated through Fowkes and Fulton scale and Grading of Recommendations Assessment, Development and Evaluation (GRADE). Meta-analyses were grouped according to the biological matrix studied (serum/GCF) and groups (O+P+ vs. O−P+/O+P+ vs. O+P−). Out of the 832 studies screened, 21 were considered in qualitative synthesis and 15 in quantitative synthesis (meta-analysis). Although included studies showed mostly “no” or “minor” problems during the quality assessment, GRADE assessment indicated very low to moderate level of evidence based on the question answered. O+P+ adults exhibited significantly higher serum levels of C-reactive protein (CRP), interleukin 6 (IL-6), leptin, and tumor necrosis factor-α (TNF-alpha) and higher resistin GCF levels than O−P+. O+P+ adults showed significantly higher serum levels of IL-6 and leptin and lower adiponectin serum levels than O+P−. Only qualitative information could be obtained of the IM vaspin, omentin-1, chemerin, IL-10, progranulin, MCP-4, IL-1β, and interferon-γ (IFN-γ). Obesity and periodontitis, together or separately, are associated with altered serum and GCF levels of CRP, IL-6, leptin, TNF-alpha, adiponectin, and resistin. It was not possible to evaluate the association between obesity and periodontitis at salivary levels. The role of recently investigated biomarkers as vaspin, omentin-1, chemerin, IL-10, progranulin, MCP-4, IL-1β, and IFN-γ, which can be key points underlying the association between obesity and periodontitis, remains to be further investigated.
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Affiliation(s)
- Renata Scheeren Brum
- Department of Dentistry, Centre of Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina, Florianópolis, Brazil
| | - Poliana Mendes Duarte
- Department of Dentistry, University of Guarulhos, Guarulhos, Brazil.,Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - Graziela De Luca Canto
- Department of Dentistry, Brazilian Centre for Evidence-Based Research, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Carlos Flores-Mir
- Department of Orthodontics, School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - César Augusto Magalhães Benfatti
- Department of Dentistry, Centre of Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina, Florianópolis, Brazil
| | - André Luís Porporatti
- Department of Dentistry, Brazilian Centre for Evidence-Based Research, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Gláucia Santos Zimmermann
- Department of Dentistry, Brazilian Centre for Evidence-Based Research, Federal University of Santa Catarina, Florianópolis, Brazil
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Brum RS, Monich PR, Fredel MC, Contri G, Ramoa SDAS, Magini RS, Benfatti CAM. Polymer coatings based on sulfonated-poly-ether-ether-ketone films for implant dentistry applications. J Mater Sci Mater Med 2018; 29:132. [PMID: 30094472 DOI: 10.1007/s10856-018-6139-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 07/26/2018] [Indexed: 06/08/2023]
Abstract
Poly-ether-ether-ketone (PEEK) is one of the most important biocompatible polymers and its sulfonation has been studied for biomedical applications. The aim of the present study is to produce, to characterize and to assess bioactivity of PEEK coatings with sulfonated PEEK (SPEEK) films. Biomedical grade PEEK (Invibio®, Batch: D0602, grade: NI1) was functionalized using sulfuric acid 98%. SPEEK was dissolved into DMSO or into DMF, both at 10% mass/volume. PEEK bars (N = 18) and cylinders (N = 27) were manufactured by compression molding and heating. SPEEK/DMSO and SPEEK/DMF were drop casted at PEEK bars and dip coated at PEEK cylinders (PEEK + SPEEK/DMSO and PEEK + SPEEK/DMF). Characterization was performed through Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and contact angle measurements. Bioactivity was assessed by immersion of samples at SBF for 1, 7 and 21 days, followed by SEM, energy-dispersive analysis (EDX) and FTIR analysis. Statistical analysis was carried out by one-way analysis of variance (ANOVA) (p = 0.05). Characteristic bands of PEEK and SPEEK, were identified through FTIR spectrum analysis, while semicrystallinity was confirmed by XRD. PEEK + SPEEK/DMF showed more evident physicochemical modifications. PEEK + SPEEK/DMSO provided a more regular and hydrophobic surface, observed through SEM and contact angle measurements. SEM/EDX showed that precipitates of calcium were formed at PEEK + SPEEK/DMSO and PEEK + SPEEK/DMF at all experimental times, but materials were not considered bioactive. Interesting surface properties were achieved with SPEEK coatings but the production of SPEEK films at PEEK surface has to be further improved and biologically tested. Schematic diagram showing the methodology applied in this study to prepare PEEK and SPEEK samples, as well as the promising application of the material.
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Affiliation(s)
- R S Brum
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil.
| | - P R Monich
- Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - M C Fredel
- Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - G Contri
- Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - S D A S Ramoa
- Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - R S Magini
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - C A M Benfatti
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
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de Resende DRB, Greghi SLA, Siqueira AF, Benfatti CAM, Damante CA, Ragghianti Zangrando MS. Acellular dermal matrix allograft versus free gingival graft: a histological evaluation and split-mouth randomized clinical trial. Clin Oral Investig 2018; 23:539-550. [PMID: 29713889 DOI: 10.1007/s00784-018-2470-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 04/23/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVES This split-mouth controlled randomized clinical trial evaluated clinical and histological results of acellular dermal matrix allograft (ADM) compared to autogenous free gingival graft (FGG) for keratinized tissue augmentation. MATERIAL AND METHODS Twenty-five patients with the absence or deficiency of keratinized tissue (50 sites) were treated with FGG (control group) and ADM (test group). Clinical parameters included keratinized tissue width (KTW) (primary outcome), soft tissue thickness (TT), recession depth (RD), probing depth (PD), and clinical attachment level (CAL). Esthetic perception was evaluated by patients and by a calibrated periodontist using visual analog scale (VAS). Histological analysis included biopsies of five different patients from both test and control sites for each evaluation period (n = 25). The analysis included percentage of connective tissue components, epithelial luminal to basal surface ratio, tissue maturation, and presence of elastic fibers. Data were evaluated by ANOVA complemented by Tukey's tests (p < 0.05). RESULTS After 6 months, PD and CAL demonstrated no differences between groups. ADM presented higher RD compared to FGG in all periods. Mean tissue shrinkage for control and test groups was 12.41 versus 55.7%. TT was inferior for ADM group compared to FGG. Esthetics perception by professional evaluation showed superior results for ADM. Histomorphometric analysis demonstrated higher percentage of cellularity, blood vessels, and epithelial luminal to basal surface ratio for FGG group. ADM group presented higher percentage of collagen fibers and inflammatory infiltrate. CONCLUSIONS Both treatments resulted in improvement of clinical parameters, except for RD. ADM group presented more tissue shrinkage and delayed healing, confirmed histologically, but superior professional esthetic perception. CLINICAL RELEVANCE This study added important clinical and histological data to contribute in the decision-making process between indication of FGG or ADM.
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Affiliation(s)
| | - Sebastião Luiz Aguiar Greghi
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of Sao Paulo, Al. Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | | | - César Augusto Magalhães Benfatti
- Department of Dentistry, Federal University of Santa Catarina, UFSC, Campus Reitor João David Ferreira Lima, Florianópolis, SC, s/n-88040-900, Brazil
| | - Carla Andreotti Damante
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of Sao Paulo, Al. Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | - Mariana Schutzer Ragghianti Zangrando
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of Sao Paulo, Al. Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
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Sordi MB, Moreira TA, Montero JFD, Barbosa LC, Benfatti CAM, Magini RDS, Pimenta ADL, Souza JCMD. Effect of γ-lactones and γ-lactams compounds on Streptococcus mutans biofilms. J Appl Oral Sci 2018; 26:e20170065. [PMID: 29489934 PMCID: PMC5831975 DOI: 10.1590/1678-7757-2017-0065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 09/14/2017] [Indexed: 01/31/2023] Open
Abstract
Considering oral diseases, antibiofilm compounds can decrease the accumulation of pathogenic species such as Streptococcus mutans at micro-areas of teeth, dental restorations or implant-supported prostheses. OBJECTIVE To assess the effect of thirteen different novel lactam-based compounds on the inhibition of S. mutans biofilm formation. MATERIAL AND METHODS We synthesized compounds based on γ-lactones analogues from rubrolides by a mucochloric acid process and converted them into their corresponding γ-hydroxy-γ-lactams by a reaction with isobutylamine and propylamine. Compounds concentrations ranging from 0.17 up to 87.5 μg mL-1 were tested against S. mutans. We diluted the exponential cultures in TSB and incubated them (37°C) in the presence of different γ-lactones or γ-lactams dilutions. Afterwards, we measured the planktonic growth by optical density at 630 nm and therefore assessed the biofilm density by the crystal violet staining method. RESULTS Twelve compounds were active against biofilm formation, showing no effect on bacterial viability. Only one compound was inactive against both planktonic and biofilm growth. The highest biofilm inhibition (inhibition rate above 60%) was obtained for two compounds while three other compounds revealed an inhibition rate above 40%. CONCLUSIONS Twelve of the thirteen compounds revealed effective inhibition of S. mutans biofilm formation, with eight of them showing a specific antibiofilm effect.
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Affiliation(s)
- Mariane Beatriz Sordi
- Centro de Ensino e Pesquisa em Implantes Dentários, Departamento de Odontologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brasil
| | - Thaís Altoé Moreira
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil
| | - Juan Felipe Dumes Montero
- Centro de Ensino e Pesquisa em Implantes Dentários, Departamento de Odontologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brasil
| | - Luis Cláudio Barbosa
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil
| | - César Augusto Magalhães Benfatti
- Centro de Ensino e Pesquisa em Implantes Dentários, Departamento de Odontologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brasil
| | - Ricardo de Souza Magini
- Centro de Ensino e Pesquisa em Implantes Dentários, Departamento de Odontologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brasil
| | - Andréa de Lima Pimenta
- Laboratório de Tecnologias Integradas, Departamento de Engenharia Química, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brasil
| | - Júlio César Matias de Souza
- Centro de Ensino e Pesquisa em Implantes Dentários, Departamento de Odontologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brasil
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de Souza JGO, Passoni BB, Magrin GL, Pereira Neto ARL, Benfatti CAM, Cardoso AC, Magini RDS. A Step-by-Step Management of Extraction Sites in Areas of Maxillary Sinus Pneumatization: A Literature Review and a Case Presentation of a New Surgical Technique. J Int Acad Periodontol 2016; 18:102-108. [PMID: 31473698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
INTRODUCTION The rehabilitation of the posterior maxilla with implant-supported prosthesis is often complicated by pneumatization of the maxillary sinus. Bone grafting is commonly required in these cases. Over the years, a number of techniques have been developed for this type of reconstruction. AIM Present and discuss the possibility of alveolar bone regeneration for subsequent placement of oral implants using Fugazzotto's technique in combination with particulate autograft harvested from the mandibular ramus and a connective tissue pedicle flap to cover the graft. METHODS A case of a 37-year-old woman with a molar perforated during endodontic treatment and indicated for extraction and implant placement is reported. RESULT AND CONCLUSION The clinical case showed the possibility of grafting of extraction sites combined with atraumatic elevation of the maxillary sinus floor can be achieved using non-conventional techniques such as Fugazzotto's technique associated with alveolar bone regeneration.
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Affiliation(s)
| | - Bernardo Born Passoni
- School of Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.
| | | | | | | | - Antônio Carlos Cardoso
- School of Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
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Rafael CF, Magrin GL, Morsch CS, Benfatti CAM, Volpato CÂM, Bianchini MAL. Nasal Floor Elevation with Simultaneous Implant Placement: A Case Report. J Int Acad Periodontol 2016; 18:94-100. [PMID: 31473714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE The aim of this paper is to report a clinical case of nasal floor elevation and simultaneous dental implant placement. CASE REPORT The patient presented to the clinic of the Center of Education and Research on Dental Implants (CEPID) in the Department of Dentistry at the Federal University of Santa Catarina (UFSC, Florianópolis, Brazil), for follow-up for peri-implantitis control. After clinical and radiographic assessment, two of three implants on anterior maxilla were removed. A cone beam computed tomography (CBCT) scan revealed no bone height for conventional length implant insertion. Nasal floor elevation and simultaneous implant placement were performed, with nasal cavity augmentation carried out with bovine bone graft. After six months, the implants were reopened successfully. CONCLUSIONS Nasal floor elevation proved to be a reliable method for dental implants insertion on the anterior atrophic maxilla when bone height reconstruction was necessary. The use of bovine bone substitutes for nasal cavity augmentation showed predictable results as well as simultaneous implant placement.
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Xavier JG, Geremias TC, Montero JFD, Vahey BR, Benfatti CAM, Souza JCM, Magini RS, Pimenta AL. Lactam inhibiting Streptococcus mutans growth on titanium. Mater Sci Eng C Mater Biol Appl 2016; 68:837-841. [PMID: 27524086 DOI: 10.1016/j.msec.2016.07.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 06/28/2016] [Accepted: 07/05/2016] [Indexed: 10/21/2022]
Abstract
The aim of this work was to analyze the activity of novel synthetic lactams on preventing biofilm formation on titanium surfaces. Titanium (Ti6Al4V) samples were exposed to Streptococcus mutans cultures in the presence or absence of a synthetic lactam. After 48h incubation, planktonic growth was determined by spectrophotometry. Biofilm was evaluated by crystal violet staining and colony forming units (CFU·ml(-)(1)), followed by scanning electron microscopy (SEM). Results showed that the average of adhered viable cells was approximately 1.5×10(2)CFU/ml in the presence of lactam and 4×10(2)CFU/ml in its absence. This novel compound was considerable active in reducing biofilm formation over titanium surfaces, indicating its potential for the development of antimicrobial drugs targeting the inhibition of the initial stages of bacterial biofilms on dental implants abutments.
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Affiliation(s)
- J G Xavier
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianópolis/SC, 88040-900, Brazil
| | - T C Geremias
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianópolis/SC, 88040-900, Brazil
| | - J F D Montero
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianópolis/SC, 88040-900, Brazil
| | - B R Vahey
- Herman Ostrow School of Dentistry of USC, 925 W 34 St, Los Angeles, CA 90089, United States
| | - C A M Benfatti
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianópolis/SC, 88040-900, Brazil
| | - J C M Souza
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianópolis/SC, 88040-900, Brazil
| | - R S Magini
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianópolis/SC, 88040-900, Brazil
| | - A L Pimenta
- Department of Biologia, ERRMECe, Université de Cergy Pontoise, 2, Av. Adolphe Chauvin 95302 Cergy, Pontoise, France; Integrated Laboratories Technologies (InteLab), Dept. Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis/SC, 88040-970, Brazil.
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Passoni BB, Dalago HR, Schuldt Filho G, Oliveira de Souza JG, Benfatti CAM, Magini RDS, Bianchini MA. Does the number of implants have any relation with peri-implant disease? J Appl Oral Sci 2015; 22:403-8. [PMID: 25466474 PMCID: PMC4245752 DOI: 10.1590/1678-775720140055] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 06/18/2014] [Indexed: 12/21/2022] Open
Abstract
Objective The aim of this study was to evaluate the relationship between the number of
pillar implants of implant-supported fixed prostheses and the prevalence of
periimplant disease. Material and Methods Clinical and radiographic data were obtained for the evaluation. The sample
consisted of 32 patients with implant-supported fixed prostheses in function for
at least one year. A total of 161 implants were evaluated. Two groups were formed
according to the number of implants: G1) ≤5 implants and G2) >5 implants. Data
collection included modified plaque index (MPi), bleeding on probing (BOP),
probing depth (PD), width of keratinized mucosa (KM) and radiographic bone loss
(BL). Clinical and radiographic data were grouped for each implant in order to
conduct the diagnosis of mucositis or peri-implantitis. Results Clinical parameters were compared between groups using Student's t test for
numeric variables (KM, PD and BL) and Mann-Whitney test for categorical variables
(MPi and BOP). KM and BL showed statistically significant differences between both
groups (p<0.001). Implants from G1 – 19 (20.43%) – compared with G2 – 26
(38.24%) – showed statistically significant differences regarding the prevalence
of peri-implantitis (p=0.0210). Conclusion It seems that more than 5 implants in total fixed rehabilitations increase bone
loss and consequently the prevalence of implants with periimplantitis.
Notwithstanding, the number of implants does not have any influence on the
prevalence of mucositis.
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Affiliation(s)
- Bernardo Born Passoni
- Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Haline Renata Dalago
- Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Guenther Schuldt Filho
- Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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