33 results match your criteria: "Guarulhos University - UnG[Affiliation]"

Treatment of complex craniofacial deformities is still a challenge for medicine and dentistry because few approach therapies are available on the market that allow rehabilitation using 3D-printed medical devices. Thus, this study aims to create a scaffold with a morphology that simulates bone tissue, able to create a favorable environment for the development and differentiation of osteogenic cells. Moreover, its association with Plenum Guide, through cell-based tissue engineering (ASCs) for guided bone regeneration in critical rat calvarial defects.

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Implantable biomedical devices have found widespread use in restoring lost functions or structures within the human body, but they face a significant challenge from microbial-related infections, which often lead to implant failure. In this context, antimicrobial hydrogels emerge as a promising strategy for treating implant-associated infections owing to their tunable physicochemical properties. However, the literature lacks a comprehensive analysis of antimicrobial hydrogels, encompassing their development, mechanisms, and effect on implant-associated infections, mainly in light of existing in vitro, in vivo, and clinical evidence.

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Article Synopsis
  • The study aimed to evaluate the knowledge and practices of Brazilian dentists in Implantology regarding peri-implantitis, a common infection related to dental implants.
  • Approximately 89.5% of participating dentists reported having treated peri-implantitis, with a preference for surgical treatment, while a majority also utilized antibiotics and mouth rinses.
  • Findings suggest that dentists are generally well-informed and proactive in managing peri-implantitis, but the absence of a unified treatment protocol may influence their approaches.
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The aim of this study was to analyze the effect of ozone (OZN) therapy on the dynamics of bone tissue in ovariectomized rats treated with zoledronic acid (ZOL). Female Wistar rats aged 6 months ( = 110) were subjected to bilateral ovariectomy (OVX). At month 3 post-OVX, 10 animals were euthanized to characterize the bone tissue architecture using microtomography (micro-CT).

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Statement Of Problem: Recent evidence suggests that toothpaste containing 0.3% triclosan (TCS) is more effective than regular toothpaste in improving clinical periodontal conditions. However, a consensus on whether TCS favors a healthy peri-implant environment is limited.

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Oral microbial colonization on titanium and polyetheretherketone dental implant healing abutments: An in vitro and in vivo study.

J Prosthet Dent

September 2023

Professor, Department of Periodontology, Dental Research Division, Guarulhos University (UnG), Guarulhos, São Paulo, Brazil; and Professor, Dental Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Minas Gerais, Brazil.. Electronic address:

Article Synopsis
  • Although PEEK implants are gaining popularity for their aesthetic and mechanical properties, research on microbial adhesion to them is limited.
  • The study aimed to compare microbial adhesion and biofilm formation on PEEK and titanium healing abutments using both lab models and human volunteers.
  • Results indicated similar fungal adhesion between both materials, but PEEK had less initial microbial adhesion and was more effectively decontaminated by laser treatment, despite having a comparable biofilm load after 48 hours.
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Objective: To investigate the effects of maxillary orthodontic expansion on the alveolar bone tissue in adult patients treated with aligners by using cone-beam computed tomography.

Methods: Thirty patients (22 females and 8 males; mean age: 36.3 years) were treated with Invisalign aligners.

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Background: Antibiotics are the most effective adjuncts in the treatment of periodontitis. However, the benefits of these agents in treating peri-implantitis are still debatable and demand further analysis.

Purpose: The aim of this review was to critically appraise the literature on the use of antibiotics to treat peri-implantitis, with the ultimate goal of supporting evidence-based clinical recommendations, defining gaps in knowledge and guiding future studies on this topic.

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Recent advances of polypyrrole conducting polymer film for biomedical application: Toward a viable platform for cell-microbial interactions.

Adv Colloid Interface Sci

April 2023

Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil. Electronic address:

Polypyrrole (PPy) is one of the most studied conductive polymers due to its electrical conductivity and biological properties, which drive the possibility of numerous applications in the biomedical area. The physical-chemical features of PPy allow the manufacture of biocompatible devices, enhancing cell adhesion and proliferation. Furthermore, owing to the electrostatic interactions between the negatively charged bacterial cell wall and the positive charges in the polymer structure, PPy films can perform an effective antimicrobial activity.

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Article Synopsis
  • The integration of landscape vulnerability and local demands is crucial for effectively restoring ecosystem services in agricultural landscapes through agroforestry systems.
  • The developed spatial hierarchization methodology serves as a decision support tool to identify priority areas for agroforestry interventions, using Multicriteria Decision Analysis in GIS software.
  • The resulting model categorizes areas based on their suitability for agroforestry into four priority levels and offers insights into managing land use pressures, conserving natural habitats, and addressing local agricultural needs.
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Article Synopsis
  • The study investigates how different processing methods of saliva affect its protein profile before using it in microbiological and biological assays.
  • Saliva samples were taken from eight healthy individuals and analyzed; non-processed saliva showcased 278 proteins, while various processing methods significantly reduced the number of proteins identified.
  • Despite the reduction in protein diversity, the processing methods did not impact microbial adhesion, but pasteurized saliva notably decreased keratinocyte cell viability.
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Statement Of Problem: Scientific collaboration provides a suitable strategy for enhancing the exchange of knowledge and technological development. However, the impact of collaboration in oral implantology research between countries and how it has been influenced by the income status of the country has not been previously evaluated.

Purpose: The purpose of this bibliometric analysis was to evaluate how collaboration between countries affected oral implant publications and whether patterns of collaboration differ depending on the country's income.

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Bacterial-derived extracellular polysaccharides reduce antimicrobial susceptibility on biotic and abiotic surfaces.

Arch Oral Biol

October 2022

Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil. Electronic address:

Objective: Extracellular biofilm matrix plays a role in reducing bacterial susceptibility against antimicrobials. Since the surface where biofilm is growing modulates microbial accumulation and bacterial-derived exopolysaccharides (EPS) synthesis, this study compared the role of EPS to reduce antimicrobial susceptibility on biotic (dental surface) and abiotic (titanium (Ti) material) surfaces and the effect of remaining matrix-enriched biofilms to promote bacterial recolonization.

Design: 48 h Streptococcus mutans UA159 strain biofilms were grown on enamel and Ti surfaces.

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Across years, potential strategies to fight peri-implantitis have been notoriously explored through the antimicrobial coating implant surfaces capable of interfering with the bacterial adhesion process. However, although experimental studies have significantly advanced, no product has been marketed so far. For science to reach the society, the commercialization of research outcomes is necessary to provide real advancement in the biomedical field.

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Industry support for dental implant research: A metatrend study of industry partnership in the development of new technologies.

J Prosthet Dent

July 2024

Professor, Dental Research Division, Guarulhos University (UNG), Guarulhos, São Paulo, Brazil; Graduate Program Professor, Department of Dental Materials and Prosthodontics, School of Dentistry at Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil. Electronic address:

Statement Of Problem: Industry needs scientific knowledge to develop new products and services, and their financial support to dental implant researchers translates into commercial products. Therefore, identifying the relevant factors for a successful industry partnership is important.

Purpose: The purpose of this study was to provide a 20-year bibliometric overview of industry-sponsored studies in implant dentistry to identify possible factors involved in industry partnership motivations.

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Spatial indicator of priority areas for the implementation of agroforestry systems: An optimization strategy for agricultural landscapes restoration.

Sci Total Environ

September 2022

UNESP/FCAV - São Paulo State University, Faculty of Agrarian and Veterinary Sciences, Access Way Prof. Paulo Donato Castellane, s/n, Jaboticabal, SP 14884-900, Brazil; POLUS-Land Use Policy Group, Paulista State University (UNESP), Access Way Prof. Paulo Donato Castellane, s/n, Jaboticabal, SP 14884-900, Brazil.

The ecological functions restoration in agricultural areas is a major challenge on a landscape scale. In the specific case of active restoration through Agroforestry Systems (AFS), the absence of a specific direction hinders ecological restoration processes, especially in regions that prefer intensive agriculture. Thus, this study aims to develop a Spatial Indicator of Priority Areas to guide Agroforestry Systems implementation in agricultural landscapes.

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Background: The aim of the present study was to compare repeated applications of antimicrobial photodynamic therapy (aPDT) to open flap debridement (OFD) in the treatment of residual periodontal pockets in non-furcation sites.

Methods: Forty-six subjects with a diagnosis of Stage III or IV Grade C periodontitis, that had been previously treated, participated in the study.  Residual pockets were divided between two groups: (1) aPDT group: received ultrasonic periodontal debridement followed by immediate application of aPDT, and repeated on1st, 2nd, 7th, and 14th days; and (2) OFD group: treated by modified papilla preservation technique, where granulation tissue and visible calculus were removed with hand curettes and an ultrasonic device.

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Dental implants represent an illustrative example of successful medical devices used in increasing numbers to aid (partly) edentulous patients. Particularly in spite of the percutaneous nature of dental implant systems, their clinical success is remarkable. This clinical success is at least partly related to the effective surface treatment of the artificial dental root, providing appropriate physicochemical properties to achieve osseointegration.

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Recent advances have been reported for needle-free local anesthesia in maxillary teeth by administering a nasal spray of tetracaine (TTC) and oxymetazoline, without causing pain, fear, and stress. This work aimed to assess whether a TTC-loaded hybrid system could reduce cytotoxicity, promote sustained permeation, and increase the anesthetic efficacy of TTC for safe, effective, painless, and prolonged analgesia of the maxillary teeth in dental procedures. The hybrid system based on TTC (4%) encapsulated in nanostructured lipid carriers (NLC) and incorporated into a thermoreversible hydrogel of poloxamer 407 (TTC) displayed desirable rheological, mechanical, and mucoadhesive properties for topical application in the nasal cavity.

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In this report, we demonstrate the effectiveness of the Invisalign system in the treatment of severe gingival recession and bone dehiscence through torque, translation, and intrusion movements in a young woman. Cone-beam computed tomography was used to assess bone parameters and check the teeth during treatment. The root of the mandibular right central incisor, which was buccally positioned and exhibited bone dehiscence of 9.

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To determine whether the permeation capacity and analgesic efficacy of articaine (ATC) could be increased and cytotoxicity decreased by encapsulation in poly(ɛ-caprolactone) nanocapsules (ATCnano), aiming at local or topical anesthesia in dentistry. Cellular viability was evaluated (using the MTT test and fluorescence microscopy) after 1 h and 24 h exposure of HaCaT cells to ATC, ATCnano, ATC with epinephrine (ATCepi), and ATC in nanocapsules with epinephrine (ATCnanoepi). The profiles of permeation of 2% ATC and 2% ATCnano across swine esophageal epithelium were determined using Franz-type vertical diffusion cells.

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Aim: This cross-sectional study sought to investigate the factors possibly related to the impact caused by the coronavirus disease 2019 pandemic in the practice of periodontists, in two countries.

Materials And Methods: A total of 254 periodontists with active periodontics licensing in Brazil and the United States participated in the survey. Data were collected through an online questionnaire and the dependent variable was the perceived impact of the pandemic on periodontists' practice routines.

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Plant-derived compounds incite applications virtually on every biomedical field due to the expedient antioxidant, anti-inflammatory and antimicrobial properties in conjunction with a natural character. Here, quercetin (QCT), a flavonoid with therapeutic potentials relevant to the oral environment, was encapsulated within metal-organic frameworks (MOFs) to address the concept of on-demand release of phytochemicals at the biointerface. We verified the applicability of a microporous MOF (ZIF-8) as a controlled-release system for QCT, as well as investigated the incorporation of QCT@ZIF-8 microparticles into a dental adhesive resin for desirable therapeutic capabilities at the tooth-restoration interface.

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Background: There is ample evidence that gestational diabetes mellitus has a direct influence on urinary incontinence and pelvic floor muscles. There are no standardized pelvic floor muscle exercise programs in the literature for the physiotherapy and differ in the type of exercise, intensity, type and duration of application, and the frequency and duration of treatment sessions. The aim of this systematic review will be to investigate that Pelvic Floor Muscle Training can prevent and/or decrease the pregnancy specific urinary incontinence in women with gestational diabetes mellitus or gestational hyperglycemia.

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Introduction: The present study aimed to evaluate and compare the long-term stability of Class II correction with the Pendulum or Jones jig followed by fixed appliances.

Settings And Sample Population: Group 1 comprised 20 Class II malocclusion patients with a mean initial age of 13.97 years (SD = 1.

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