Produção Nacional
Revisado por pares
Douglas Fernandes da Silva, João Lopes Toledo Neto, Milena Ferreira Machado, Jetter Ribeiro Bochnia, Aguinaldo Silva Garcez, Augusto Alberto Foggiato,
Photodynamic Therapy (PDT) is an alternative to surface decontamination that is based on the interaction between a non-toxic photosensitizer (PS) and a light source to allow for the formation of reactive oxygen species. The objective of this study was to test a new patented device - the "Ultrasonic Photodynamic Inactivation Device" (UPID) under the patent deposit MU-BR 20.2018.00.9356-3 - for the photodynamic inactivation on contaminated acrylic plates and titanium disk. This new low cost device contains ...
Tópico(s): Dental Research and COVID-19
2019 - Elsevier BV | Photodiagnosis and Photodynamic Therapy
Produção Nacional
Revisado por pares
Elisa F. Nardini, Thiago Silva de Almeida, Tania M. Yoshimura, Martha S. Ribeiro, Rielson José Alves Cardoso, Aguinaldo Silva Garcez,
The present study evaluated the effectiveness of extracts of commercially available Curcuma longa, Citrus lemon, Hamamelis virginiana and Hypericum perforatum as photosensitizers in Antimicrobial Photodynamic Therapy (aPDT). Each photosensitizer (PS) was analyzed in a spectrophotometer between 350 and 750 nm to determine the ideal light source. Once the absorption bands were determined, three light sources were selected. To determine the concentration of use, the compounds were tested at different ...
Tópico(s): Ocular Infections and Treatments
2019 - Elsevier BV | Photodiagnosis and Photodynamic Therapy
Produção Nacional
Revisado por pares
Mário Luís Assine, Aguinaldo Silva,
The Upper Paraguay drainage basin is situated mainly in west-central Brazil, near the Bolivian border. Flowing from north to south, the Paraguay is the trunk river of an alluvial depositional tract characterized by complex geomorphologic zonation that resulted from an intricate geologic evolution since the Late Pleistocene. This paper focuses on the geomorphology of the Paraguay River at the northwestern border of the Pantanal wetland, where two broad geomorphologic zones were distinguished. North ...
Tópico(s): Soil erosion and sediment transport
2009 - Elsevier BV | Geomorphology
Produção Nacional
Aguinaldo Silva, Edvard Elias de Souza Filho, Sandra Baptista da Cunha,
The aim of this study is to characterize the channel pattern of the Paraguay River between Cabacal River and Pelado Hill in the Caceres area (MT). To do so, analyses on the fluvial hydrodynamics, on the morphology of the channel and the floodplain, and on the typology of the fluvial bars, were carried out. The research was developed through the use of the orbital images, hydrologic data and field works. The morphologic analysis, the floodplain landscapes, and the fluvial bars styles showed that such ...
Tópico(s): Hydraulic flow and structures
2008 - Sociedade Brasileira de Geologia | Brazilian Journal of Geology
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Silvia Cristina Núñez, Maurı́cio S. Baptista, Nasser Ali Daghastanli, Rosângela Itri, Michael R. Hamblin, Martha S. Ribeiro,
This study describes the use of methylene blue (MB) plus light (photodynamic inactivation, PDI) in the presence of hydrogen peroxide (H2O2) to kill Staphylococcus aureus, Escherichia coli, and Candida albicans. When H2O2 was added to MB plus light there was an increased antimicrobial effect, which could be due to a change in the type of ROS generated or increased microbial uptake of MB. To clarify the mechanism, the production of ROS was investigated in the presence and absence of H2O2. It was observed ...
Tópico(s): bioluminescence and chemiluminescence research
2010 - Springer Science+Business Media | Photochemical & Photobiological Sciences
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Silvia Cristina Núñez, Michael R. Hamblim, Hideo Suzuki, Martha S. Ribeiro,
Abstract Introduction This study reports the antimicrobial effect of photodynamic therapy (PDT) combined with endodontic treatment in patients with necrotic pulp infected with microflora resistant to a previous antibiotic therapy. Methods Thirty anterior teeth from 21 patients with periapical lesions that had been treated with conventional endodontic treatment and antibiotic therapy were selected. Microbiological samples were taken (1) after accessing the root canal, (2) after endodontic therapy, and (3) after ...
Tópico(s): Dental Radiography and Imaging
2010 - Elsevier BV | Journal of Endodontics
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Silvia Cristina Núñez, José Luiz Lage–Marques, Michael R. Hamblin, Martha S. Ribeiro,
Microbial infection plays an important role in the development of pulp necrosis and formation of periapical lesions. In vitro and in vivo research in this field, traditionally microbiological culture methods using paper point sampling and quantitative culture, faces difficulties in completely removing bacteria from the root canal system and analyzing sequential procedures. This study employed genetically engineered bioluminescent bacteria and a light-sensitive imaging system to allow real-time visualization ...
Tópico(s): Legionella and Acanthamoeba research
2007 - Fundação Odontológica de Ribeirão Preto | Brazilian Dental Journal
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Silvia Cristina Núñez, Michael R. Hamblin, Martha S. Ribeiro,
Abstract This study analyzed the antimicrobial effect of photodynamic therapy (PDT) in association with endodontic treatment. Twenty patients were selected. Microbiological samples were taken after accessing the canal, endodontic therapy, and PDT. At the end of the first session, the root canal was filled with Ca(OH) 2 , and after 1 week, a second session of the therapies was performed. Endodontic therapy gave a mean reduction of 1.08 log. The combination with PDT significantly enhanced the reduction (1.83 ...
Tópico(s): Dental Radiography and Imaging
2007 - Elsevier BV | Journal of Endodontics
Produção Nacional
Revisado por pares
Michael M. McGlue, Aguinaldo Silva, Fabrício Aníbal Corradini, Hiran Zani, Mark A. Trees, Geoffrey S. Ellis, Mauro Parolin, Peter W. Swarzenski, Andrew S. Cohen, Mário Luís Assine,
Tópico(s): Coastal wetland ecosystem dynamics
2011 - Springer Science+Business Media | Journal of Paleolimnology
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Selly Sayuri Suzuki, Martha S. Ribeiro, Edson Yoshihiro Mada, Anderson Zanardi de Freitas, Hideo Suzuki,
The aim of this study was to evaluate biofilm retention around orthodontic brackets related to the method of ligation by using optical coherence tomography (OCT) and microbiologic sampling.Seventy-five plastic central incisors for dentures were divided into 3 groups and used with metal brackets with a 0.022-in slot with elastomeric ligature (n = 25), metal brackets with a 0.022-in slot with steel wire ligature (n = 25), and self-ligating brackets with a 0.022-in slot (n = 25). The samples were submersed in ...
Tópico(s): Dental materials and restorations
2011 - Elsevier BV | American Journal of Orthodontics and Dentofacial Orthopedics
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Martha S. Ribeiro, George P. Tegos, Silvia Cristina Núñez, Antônio Olavo Cardoso Jorge, Michael R. Hamblin,
Abstract Background and Objective To compare the effectiveness of antimicrobial photodynamic therapy (PDT), standard endodontic treatment and the combined treatment to eliminate bacterial biofilms present in infected root canals. Study Design/Materials and Methods Ten single‐rooted freshly extracted human teeth were inoculated with stable bioluminescent Gram‐negative bacteria, Proteus mirabilis and Pseudomonas aeruginosa to form 3‐day biofilms in prepared root canals. Bioluminescence imaging was ...
Tópico(s): Photodynamic Therapy Research Studies
2006 - Wiley | Lasers in Surgery and Medicine
Produção Nacional
Revisado por pares
Silvia Cristina Núñez, Aguinaldo Silva Garcez, Selly Sayuri Suzuki, Martha S. Ribeiro,
Objective: The aim of this study was to evaluate the effectiveness of low-level laser therapy (LLLT) and transcutaneous electrical neural stimulation (TENS) on the improvement of mouth opening in patients with temporomandibular disorder (TMD). Background Data: TMDs are conditions that affect the form and/or function of the temporomandibular joint (TMJ), masticatory muscles, and dental apparatus. Often TMD is associated with pain localized in the TMJ and/or in the muscles of the face and neck. Methods: ...
Tópico(s): Botulinum Toxin and Related Neurological Disorders
2006 - Mary Ann Liebert, Inc. | Photomedicine and Laser Surgery
Produção Nacional
Aguinaldo Silva Garcez, Silvia Cristina Núñez, José Luiz Lage–Marques, Antônio Olavo Cardoso Jorge, Martha S. Ribeiro,
Tópico(s): Photodynamic Therapy Research Studies
2006 - Elsevier BV | Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Eduardo Rodrigues Fregnani, Helena Margarita Hiar Rodriguez, Silvia Cristina Núñez, Caetano P. Sabino, Hideo Suzuki, Martha S. Ribeiro,
Tópico(s): Dental Research and COVID-19
2012 - Springer Science+Business Media | Lasers in Medical Science
Produção Nacional
Revisado por pares
Michael M. McGlue, Aguinaldo Silva, Hiran Zani, Fabrício Aníbal Corradini, Mauro Parolin, E. J. Abel, Andrew S. Cohen, Mário Luís Assine, Geoffrey S. Ellis, Mark A. Trees, Sidney Kuerten, Frederico dos Santos Gradella, Giliane Géssica Rasbold,
Abstract The Pantanal is the world's largest tropical wetland and a biodiversity hotspot, yet its response to Quaternary environmental change is unclear. To address this problem, sediment cores from shallow lakes connected to the Upper Paraguay River (PR) were analyzed and radiocarbon dated to track changes in sedimentary environments. Stratal relations, detrital particle size, multiple biogeochemical indicators, and sponge spicules suggest fluctuating lake-level lowstand conditions between ~ 11,000 ...
Tópico(s): Geological formations and processes
2012 - Cambridge University Press | Quaternary Research
Produção Nacional
Revisado por pares
Silvia Cristina Núñez, Gessé Eduardo Calvo Nogueira, Martha S. Ribeiro, Aguinaldo Silva Garcez, José Luiz Lage–Marques,
Low-intensity laser therapy (LILT) is widely used for wound healing promotion and its mechanism of action may be due to an enhancement of blood supply. The aim of this study was to evaluate blood flow alterations in a wound healing model, using laser Doppler flowmetry (LDF) associated with a normalized perfusion parameter.An injury was provoked in 15 rats and blood flow was measured periodically over a period of 21 days. Control groups were established to evaluate LDF and He-Ne laser effects on microcirculation. ...
Tópico(s): Thermoregulation and physiological responses
2004 - Wiley | Lasers in Surgery and Medicine
Produção Nacional
Hudson de Azevedo Macedo, Mário Luís Assine, Fabiano do Nascimento Pupim, Éder Renato Merino, José Cândido Stevaux, Aguinaldo Silva,
O Paraguai é o rio-tronco do trato de sistemas deposicionais do Pantanal. Com base em dados de sensores remotos e verificação de campo, foi realizado mapeamento geomorfológico da planície do rio Paraguai no trecho entre as confluências dos rios Cuiabá e Miranda, onde foram reconhecidas formas deposicionais atuais e antigas. A análise das associações de formas permitiu estabelecer proposta de evolução geomorfológica para a área, mas os eventos carecem ainda de datação precisa por métodos geocronológicos. ...
Tópico(s): Hydropower, Displacement, Environmental Impact
2014 - União da Geomorfologia Brasileira | Revista Brasileira de Geomorfologia
Produção Nacional
Revisado por pares
Silvia Cristina Núñez, Aguinaldo Silva Garcez, Ilka Tiemy Kato, Tania M. Yoshimura, Laércio Gomes, Maurı́cio S. Baptista, Martha S. Ribeiro,
Antimicrobial photodynamic therapy (APDT) may become a useful clinical tool to treat microbial infections, and methylene blue (MB) is a well-known photosensitizer constantly employed in APDT studies, and although MB presents good efficiency in antimicrobial studies, some of the MB photochemical characteristics still have to be evaluated in terms of APDT. This work aimed to evaluate the role of MB solvent's ionic strength regarding dimerization, photochemistry, and photodynamic antimicrobial efficiency. ...
Tópico(s): Ocular Infections and Treatments
2014 - Springer Science+Business Media | Photochemical & Photobiological Sciences
Produção Nacional
Revisado por pares
Caetano P. Sabino, Aguinaldo Silva Garcez, Silvia Cristina Núñez, Martha S. Ribeiro, Michael R. Hamblin,
Antimicrobial photodynamic therapy (APDT) combined with endodontic treatment has been recognized as an alternative approach to complement conventional root canal disinfection methods on bacterial biofilms. We developed an in vitro model of bioluminescent Candida albicans biofilm inside curved dental root canals and investigated the microbial reduction produced when different light delivery methods are employed. Each light delivery method was evaluated in respect to the light distribution provided ...
Tópico(s): Nanoplatforms for cancer theranostics
2014 - Springer Science+Business Media | Lasers in Medical Science
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Silvia Cristina Núñez, Nilton Azambuja, Eduardo Rodrigues Fregnani, Helena Margarita Hiar Rodriguez, Michael R. Hamblin, Hideo Suzuki, Martha S. Ribeiro,
Objective: The aim of this study was to test photodynamic therapy (PDT) as an alternative approach to biofilm disruption on dental hard tissue, We evaluated the effect of methylene blue and a 660 nm diode laser on the viability and architecture of Gram-positive and Gram-negative bacterial biofilms. Materials and methods: Ten human teeth were inoculated with bioluminescent Pseudomonas aeruginosa or Enterococcus faecalis to form 3 day biofilms in prepared root canals. Bioluminescence imaging was used ...
Tópico(s): Dental Radiography and Imaging
2013 - Mary Ann Liebert, Inc. | Photomedicine and Laser Surgery
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Selly Sayuri Suzuki, Elizabeth Ferreira Martinez, Mylene Garcez Iemini, Hideo Suzuki,
Tópico(s): Dental Implant Techniques and Outcomes
2013 - Springer Science+Business Media | Lasers in Medical Science
Produção Nacional
Revisado por pares
Aguinaldo Silva Garcez, Julio G. Arantes-Neto, Débora Parra Sellera, Eduardo Rodrigues Fregnani,
Besides the advances in endodontics, there are situations in which surgery is necessary to retain a tooth that otherwise would be extracted. This study analyzes the microbial reduction after conventional periapical surgery followed by antimicrobial photodynamic therapy (aPDT) in 3 years follows up. Twenty-eight teeth needing periapical surgery were enrolled in this study. Microbiological samples were taken after: (1) accessing the lesion, (2) surgical procedure, and (3) aPDT. The teeth received a full ...
Tópico(s): Sinusitis and nasal conditions
2015 - Elsevier BV | Photodiagnosis and Photodynamic Therapy
Produção Nacional
Revisado por pares
Michael M. McGlue, Aguinaldo Silva, Mário Luís Assine, José Cândido Stevaux, Fabiano do Nascimento Pupim,
In spite of its global significance to biodiversity and biogeochemical cycles (e.g., as a methane source and carbon dioxide sink), the Pantanal of western Brazil remains underexplored from the perspective of Quaternary paleoecology, paleogeography, and paleoclimatology. Long in the scientific and cultural shadow cast by the Amazon Basin, recent research using lake sediment cores from different sites across the Pantanal lowlands has provided a glimpse at the sensitivity of this savanna floodplain ...
Tópico(s): Aquatic Ecosystems and Phytoplankton Dynamics
2015 - Springer Nature | The handbook of environmental chemistry
Produção Nacional
Revisado por pares
Mário Luís Assine, Hudson de Azevedo Macedo, José Cândido Stevaux, Ivan Bergier, Carlos Roberto Padovani, Aguinaldo Silva,
This chapter presents and discusses the avulsive nature of the Pantanal rivers and shows how the ever-changing drainage network influences the surface hydrology and ecology. Besides, the systemic portrait here outlined provides new insights concerning the Pantanal hydrodynamics, in its particularities and as a whole system. A simple model of the avulsion process is illustrated, and several realistic examples of the processes leading to river avulsions are shown and discussed. The north-to-south ...
Tópico(s): Hydrology and Watershed Management Studies
2015 - Springer Nature | The handbook of environmental chemistry
Produção Nacional
Revisado por pares
Fabiano do Nascimento Pupim, Paul R. Bierman, Mário Luís Assine, Dylan H. Rood, Aguinaldo Silva, Éder Renato Merino,
The importance of Earth's low sloping areas in regard to global erosion and sediment fluxes has been widely and vigorously debated. It is a crucial area of research to elucidate geologically meaningful rates of land-surface change and thus the speed of element cycling on Earth. However, there are large portions of Earth where erosion rates have not been well or extensively measured, for example, the tropical lowlands. The Cuiabana lowlands are an extensive low-altitude and low-relief dissected metamorphic ...
Tópico(s): Geological and Geochemical Analysis
2015 - Elsevier BV | Geomorphology
Produção Nacional
Revisado por pares
Mario S. Yanaguizawa, Selly Sayuri Suzuki, Elizabeth Ferreira Martinez, Hideo Suzuki, Maria Cristina J. Pelegrin, Aguinaldo Silva Garcez,
The primary stability of a mini-implant is crucial to treatment sequence since most orthodontic mini-implant failures occur at an early stage. Irritation or inflammation of peri-implant tissues has been related to decreasing mini-implant success.This study evaluates the effect of low-level laser therapy on initial inflammation after orthodontic mini-implants installation.Ten volunteers received two mini-implants (1.3 mm diameter, 7 mm length). One mini-implant was inserted on each side of the maxilla ...
Tópico(s): Dental materials and restorations
2016 - Mary Ann Liebert, Inc. | Photomedicine and Laser Surgery
Produção Nacional
Revisado por pares
Michael M. McGlue, Preston H. Smith, Hiran Zani, Aguinaldo Silva, Bárbara Carrapa, Andrew S. Cohen, Martin Pepper,
Abstract: The Chaco foreland is well known for its spectacular fluvial megafans, and this basin frequently serves as a modern analog for studies that use the geological record to investigate tectonic processes in convergent orogenic systems. Yet little sedimentary data has been recovered from the southern Chaco, particularly at the latitude of northern Argentina, which limits both its utility as an analog and our understanding of Andean megafan development in the subtropics. The southern Chaco ...
Tópico(s): Geochemistry and Geologic Mapping
2016 - Society for Sedimentary Geology | Journal of Sedimentary Research
Produção Nacional
Revisado por pares
Selly Sayuri Suzuki, Aguinaldo Silva Garcez, Hideo Suzuki, Edílson Ervolino, Won Moon, Martha S. Ribeiro,
This study evaluated the biological effects of low‐level laser therapy (LLLT) on bone remodeling, tooth displacement and root resorption, occurred during the orthodontic tooth movement. Upper first molars of a total of sixty‐eight male rats were subjected to orthodontic tooth movement and euthanized on days 3, 6, 9, 14 and 21 days and divided as negative control, control and LLLT group. Tooth displacement and histomorphometric analysis were performed in all animals; scanning electron microscopy analysis ...
Tópico(s): Muscle metabolism and nutrition
2016 - Wiley | Journal of Biophotonics
Produção Nacional
Revisado por pares
Hideo Suzuki, Won Moon, Luiz Henrique Previdente, Selly Sayuri Suzuki, Aguinaldo Silva Garcez, Alberto Consolaro,
ABSTRACT The midpalatal suture has bone margins with thick connective tissue interposed between them, and it does not represent the fusion of maxillary palatal processes only, but also the fusion of palatal processes of the jaws and horizontal osseous laminae of palatal bones. Changing it implies affecting neighboring areas. It has got three segments that should be considered by all clinical analyses, whether therapeutic or experimental: the anterior segment (before the incisive foramen, or intermaxillary ...
Tópico(s): dental development and anomalies
2016 - Dental Press Editora | Dental Press Journal of Orthodontics
Produção Nacional
Revisado por pares
Selly Sayuri Suzuki, Aguinaldo Silva Garcez, Patricia Reese, Hideo Suzuki, Martha S. Ribeiro, Won Moon,
Tópico(s): Dental Implant Techniques and Outcomes
2017 - Springer Science+Business Media | Lasers in Medical Science