bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Zoledronic Acid in Experimental Periapical Lesions in Rats: An Imaging and Histological Analysis
Authors: França Talita Ribeiro Tenório de , Ramos-Perez Flávia Maria de Moraes , Pontual Andrea dos Anjos , Castro Jurema Freire Lisboa de , Bonan Paulo Rogério Ferreti , Perez Danyel Elias da Cruz
Published: November 2017

Abstract The aim of this study was to assess the imaging and histological features of experimental periapical lesions, including the adjacent alveolar bone, in rats under zoledronic acid treatment. The study used 40 male Wistar rats distributed into 8 groups of 5 animals each: G1: induction of periapical lesion (PL) and weekly intraperitoneal administration (WIPA) of saline solution (0.9% NaCl) for 4 weeks; G2: PL induction and WIPA of zoledronic acid (0.15 mg/kg/week) for 4 weeks; G3: PL induction and WIPA of saline solution for 8 weeks; G4: PL induction and WIPA of zoledronic acid for 8 weeks; G5:WIPA of saline solution for 4 weeks and subsequent PL induction; G6: WIPA of zoledronic acid for 4 weeks and subsequent PL induction; G7: WIPA of saline solution for 8 weeks and subsequent PL induction; G8: WIPA of zoledronic acid for 8 weeks and subsequent PL induction. The administration of zoledronic acid or saline solution continued after PL induction until the euthanasia. Thus, cone beam computed tomography and histological analysis were performed. Statistical analyzes were performed by ANOVA and Kruskal-Wallis test. Groups treated with zoledronic acid showed significantly smaller size of PL than the groups treated with 0.9% NaCl (p<0.05). PLs were formed by chronic inflammation ranging from mild to moderate, with no difference between groups. In all specimens, no mandibular necrosis was observed. In conclusion, the presence of PLs apparently does not represent an important risk factor for the development of bisphosphonate-related osteonecrosis of the jaws.
Accelerated Healing Period with Hydrophilic Implant Placed in Sheep Tibia
Authors: Sartoretto Suelen Cristina , Calasans-Maia José de Albuquerque , Costa Yanan Osório da , Louro Rafael Seabra , Granjeiro José Mauro , Calasans-Maia Mônica Diuana
Published: November 2017

Abstract The objective of this study was to evaluate the early osseointegration of two different implants surfaces, a sandblasted and acid-etched surface (TN) compared with same geometry and surface roughness modified to be hydrophilic/wettable by conditioning in an isotonic solution of 0.9% sodium-chloride (TA) through histological and histomorphometric analysis after sheep tibia implantation. Forty dental implants, divided in two groups (TN and TA) were placed in the left tibia of twenty healthy, skeletally mature Santa Ines sheep (n=5/experimental period). After 7, 14, 21 and 28 days post-implantation, the samples were removed and the sheep were kept alive. Analysis of resin sections (30 μm) allowed the quantification of bone area (BA) and bone-to-implant contact (BIC). TA group presented nearly 50% increase in BA at 14 days (p<0.001, ANOVA - Tukey’s post test) compared with 7 days. The TA presented higher values than the TN for BA and BIC at 14, 21, and 28 days after placement, stabilizing bone healing. TA hydrophilic surface promoted early osseointegration at 14 and 21 days compared to TN, accelerating bone healing period post-implant placement in sheep tibia.
Micro-CT Evaluation of Root and Canal Morphology of Mandibular First Premolars with Radicular Grooves
Authors: Boschetti Emanuele , Silva-Sousa Yara Terezinha Correa , Mazzi-Chaves Jardel Francisco , Leoni Graziela Bianchi , Versiani Marco Aurélio , Pécora Jesus Djalma , Saquy Paulo Cesar , Sousa Neto Manoel Damião de
Published: November 2017

Abstract The aim of this study was to evaluate morphological features of 70 single-rooted mandibular first premolars with radicular grooves (RG) using micro-CT technology. Teeth were scanned and evaluated regarding the morphology of the roots and root canals as well as length, depth and percentage frequency location of the RG. Volume, surface area and Structure Model Index (SMI) of the canals were measured for the full root length. Two-dimensional parameters and frequency of canal orifices were evaluated at 1, 2, and 3 mm levels from the apical foramen. The number of accessory canals, the dentinal thickness, and cross-sectional appearance of the canal at different root levels were also recorded. Expression of deep grooves was observed in 21.42% of the sample. Mean lengths of root and RG were 13.43 mm and 8.5 mm, respectively, while depth of the RG ranged from 0.75 to 1.13 mm. Mean canal volume, surface area and SMI were 10.78 mm3, 58.51 mm2, and 2.84, respectively. Apical delta was present in 4.35% of the sample and accessory canals were observed mostly at the middle and apical thirds. Two-dimensional parameters indicated an oval-shaped cross-sectional appearance of the root canal with a high percentage frequency of canal divisions (87.15%). Canal configuration type V (58.57%) was the most prevalent. C-shaped configuration was observed in 13 premolars (18.57%), whereas dentinal thickness ranged from 1.0 to 1.31 mm. Radicular grooves in mandibular first premolars was associated with the occurrence of several anatomical complexities, including C-shaped canals and divisions of the main root canal.
Evaluating Psychometric Properties of an Instrument Addressing Comprehensiveness of Care Among Dentists
Authors: Mattos Grazielle Christine Maciel , Mambrini Juliana Vaz de Melo , MBE Jennifer Elizabeth Gallagher , Paiva Saul Martins , Abreu Mauro Henrique Nogueira Guimarães de
Published: November 2017

Abstract This study aimed to evaluate the psychometric properties of an instrument to assess comprehensiveness of care from dentists using a combination of classical test theory and item response theory. A 46-item instrument was developed and tested by a panel of experts, followed by a pilot test and administration to 187 primary care dentists in a large Brazilian city. The 46 items were evaluated using the following criteria: acceptability, internal consistency, temporal stability, inter-item correlation, and tetrachoric correlation. This evaluation led to a shortened version consisting of 11 items that met all the criteria previously described. The temporal stability was measured using Cohen’s kappa, and all 11 items presented values greater than 0.5. The Cronbach’s alpha value was 0.72. None of the 11 items had missing data on the distribution of responses, and the model considering the discrimination as varying fit the data better than the model considering discrimination as a constant parameter (p<0.001). Item characteristic curves showed that 54.5% of items could be considered difficult, i.e., only dentists with a good understanding of comprehensiveness responded favorably. The 11-item instrument to assess comprehensiveness of care by dentists is considered to have good psychometric properties.
Chondroid Tenosynovial Giant Cell Tumor of the Temporomandibular Joint: A Rare Case Report
Authors: Anbinder Ana Lia , Geraldo Barbara Maria Corrêa , Guimarães Filho Rubens , Pereira Débora Lima , Almeida Oslei Paes de , Carvalho Yasmin Rodarte
Published: November 2017

Abstract Tenosynovial giant cell tumor of diffuse type (TGCT-d) or pigmented villonodular synovitis (PVNS) is a locally aggressive lesion that mostly affects the joints of long bones. Chondroid tenosynovial giant cell tumor (CTGCT) or PVNS with chondroid metaplasia is a rare distinct subset of synovial tumors that has a predilection for the TMJ. We report a rare case of CTGCT in the TMJ, initially misdiagnosed as temporomandibular disorder (TMD). A 51-year-old woman was referred to the surgeon with the chief complaint of TMJ pain for 5 years and a past history of an unsuccessful TMD treatment. Extraoral examination revealed discrete preauricular swelling and restricted mandibular range of motion. Panoramic radiograph and computerized tomography showed destruction of the mandibular fossa and condyle. Histologically, the tumor was composed by large mononuclear cells with prominent eosinophilic cytoplasm and grooved nuclei, small histiocytoid cells, osteoclast-like multinucleated cells, brown pigmentation and areas of chondroid metaplasia. Morphological and immunohistochemical characteristics lead to the final diagnosis of CTGCT. The rarity of CTGCT could be attributed to the lack of recognition of this lesion, with cases diagnosed as chondroblastomas, synovial chodromatosis and chondrosarcoma. The patient received immediate reconstruction and recurrence was found 22 months after initial intervention. TGCT-d and CTGCT of the TMJ can present similar symptoms to TMD, but clinicians must distinguish both lesions by complete examination, imaging and, when necessary, histopathologic evaluation.
Diabetic Rats Present High Mean Platelet Count in the Presence of Oral Infections
Authors: Ferreira Luciana Louzada , Gomes Filho João Eduardo , Sumida Dóris Hissako , Bonfim Suely Regina Mogami , Sivieri-Araújo Gustavo , Guimarães Gustav , Cintra Luciano Tavares Angelo
Published: November 2017

Abstract Platelet count is associated with inflammatory diseases like diabetes mellitus (DM), which in turn, is related in a bidirectional manner with apical periodontitis and periodontal disease. The aim of this study was to evaluate the effects of apical periodontitis and/or periodontal disease on mean platelet count in a rat model of diabetes mellitus. Eighty Wistar rats were randomly divided into 8 groups (n=10): control (C), apical periodontitis (AP), periodontal disease (PD), apical periodontitis with periodontal disease (AP-PD), diabetes mellitus (DM), diabetes mellitus with apical periodontitis (DM-AP), diabetes mellitus with periodontal disease (DM-PD) and diabetes mellitus with apical periodontitis and periodontal disease (DM-AP-PD). Rats were anesthetized and DM was induced with a single dose of streptozotocin diluted in citrate buffer solution. After 6 days, the DM was confirmed. The animals were sedated and apical periodontitis was induced by dental exposure and periodontal disease was induced by periodontal ligature. After 30 days, animals were anesthetized and the blood was collected by cardiac puncture. Samples were processed and the mean platelet count was obtained. Data were tabulated and subjected to statistical analysis (p<0.05). Diabetic rats had higher mean glycemic levels compared with nondiabetic rats at 6 and 36 days after DM induction (p<0.05). The DM-PD and DM-PD-AP groups showed increased mean platelet count compared to control and AP groups (p<0.05). The periodontal disease alone or associated with apical periodontitis influence mean platelet count in a rat model of diabetes mellitus.
Are Desensitizing Toothpastes Equally Biocompatible and Effective Against Microorganisms?
Authors: Camargo Samira Esteves Afonso , Milhan Noala Vicensoto Moreira , Saraiva Fernanda de Oliveira , Oliveira Jonatas Rafael de , Oliveira Luciane Dias de , Camargo Carlos Henrique Ribeiro
Published: November 2017

Abstract The aims of this study were evaluate cytotoxicity, genotoxicity, antimicrobial activity of desensitizing toothpastes compared to a common one and the surface roughness of tooth enamel submitted to brushing with these toothpastes. Samples of three desensitizing toothpastes (Colgate Sensitive, Sensodyne and Oral B Sensitive) and common toothpaste (Colgate) were placed in contact with gingival human fibroblasts. Cytotoxicity and genotoxocity were measured by MTT assay and micronucleus test. Antimicrobial activity of the toothpastes extracts against C. albicans, S. mutans and S. aureus were assessed. For surface roughness evaluation, bovine teeth were submitted to 10.000 brushing cycles. The results were analyzed statically using Mann-Whitney U, ANOVA and Z tests (p<0.05). All toothpastes caused cytotoxic effect to the cells (p<0.05), except Colgate Sensitive. The toothpastes did not increase the number of micronuclei compared to the untreated control group. Colgate eliminated all the evaluated microorganisms at lower concentrations compared to Colgate Sensitive and Oral B Sensitive, which were not able to eliminate S. aureus. Sensodyne did not reach the minimum microbicidal concentration. The surface roughness of tooth enamel increased after brushing with Colgate Sensitive and Oral B Sensitive, however the comparison between groups showed no difference on the enamel surface roughness presented by desensitizing toothpastes when compared with the common one (p>0.05). Based on these results, we can conclude that although none toothpaste has induced genotoxicity, Colgate Sensitive was also not cytotoxic. Colgate was the most effective against the microorganisms, and there were no differences on the enamel surface roughness between the groups.
Microtensile Bond Strength and Microhardness of Composite Resin Restorations Using a Sonic-Resin Placement System
Authors: Grandi Victor Hugo , Berger Sandrine Bittencourt , Fugolin Ana Paula Piovezan , Gonini-Júnior Alcides , Lopes Murilo Baena , Consani Simonides , Guiraldo Ricardo Danil
Published: November 2017

Abstract The aim of this study was to evaluate the efficacy of applying sonic energy on microtensile bond strength and microhardness after the restoration process. A total of 40 human third molars were extracted. Class II cavities were prepared and restored with composite SonicFill or Filtek Z350 XT with and without the application of sonic energy. After the teeth were stored in water for 24 h, the teeth were sectioned into sticks (1.0 mm2) and subjected to tensile testing. For a depth Knoop hardness test, the samples were cut and indentations were made sequentially from the surface of the samples to the bottom of the samples in three intervals of 1 mm each. The samples were then subjected to a load of 50 g for 10 s. The results from the tensile (factors: placement system and composite) and hardness (factors: placement system, composite and depth) tests were subjected to the Kolmogorov-Smirnov normality test, followed by analysis of variance and Tukey’s test (5% significance). For the placement system factor, higher bond strength was observed for the cavities that were restored with sonic energy (p < 0.001). For depth Knoop hardness, the hardness at 1 mm depth was significantly greater than that at 3 mm depth just for the restorations with Filtek Z350 XT composite without the application of sonic energy. Therefore, the use of sonic energy during the restorative process improved bonding, yet it did not markedly affect the depth hardness for both composites.
Influence of Hemostatic Solution on Bond Strength and Physicochemical Properties of Resin Cement
Authors: Araújo Isabela Sousa de , Prado Célio Jesus do , Raposo Luís Henrique Araújo , Soares Carlos José , Zanatta Rayssa Ferreira , Torres Carlos Rocha Gomes , Ruggiero Reinaldo , Silva Gisele Rodrigues da
Published: November 2017

Abstract The aim of this study was to evaluate the degree of conversion, color stability, chemical composition, and bond strength of a light-cured resin cement contaminated with three different hemostatic solutions. Specimens were prepared for the control (uncontaminated resin cement) and experimental groups (resin cement contaminated with one of the hemostatic solutions) according to the tests. For degree of conversion, DC (n = 5) and color analyses (n = 10), specimens (3 mm in diameter and 2 mm thick) were evaluated by Fourier transform infrared spectroscopy (FTIR) and CIELAB spectrophotometry (L*, a*, b*), respectively. For elemental chemical analysis (n = 1), specimens (2 mm thick and 6 mm in diameter) were evaluated by x-ray energy-dispersive spectroscopy (EDS). The bond strengths of the groups were assessed by the microshear test (n = 20) in a leucite-reinforced glass ceramic substrate, followed by failure mode analysis by scanning electron microscopy (SEM). The mean values, except for the elemental chemical evaluation and failure mode, were evaluated by ANOVA and Tukey’s HSD test. The color stability was influenced by storage time (p<0.001) and interaction between contamination and storage time (p<0.001). Hemostop and Viscostat Clear contamination did not affect the DC, however Viscostat increased the DC. Bond strength of the resin cement to ceramic was negatively affected by the contaminants (p<0.001). Contamination by hemostatic agents affected the bond strength, degree of conversion, and color stability of the light-cured resin cement tested.
Analysis of the Epithelium-Mesenchymal Transition Process on Oral Squamous Cell Carcinomas
Authors: Lima Taiane Berguemaier de , Klein Isadora Peres , Oliveira Márcia Gaiger de , Rados Pantelis Varvaki , Sant’Ana Filho Manoel , Visioli Fernanda
Published: November 2017

Abstract The aim of this study is to evaluate the immunohistochemical expression of E-cadherin, N-cadherin and Bmi-1, and their association with clinical parameters and with the degree of histopathological differentiation in oral squamous cell carcinomas. 65 squamous cell carcinoma samples were used for constructing a tissue microarray block, and then immunohistochemistry was performed for different markers. A semi-quantitative analysis of the amount of positive tumor cells was performed by two blind and calibrated observers (Kappa>0.75). The statistical Mann-Whitney and Kruskal-Wallis tests were used to evaluate the data. The correlation between variables was investigated by the Spearman test, and the significance level set at p<0.05. We observed higher expression of Bmi-1 in tumors located in the palate (p<0.0001). In addition, poorly differentiated tumors had a greater amount of Bmi-1 positive cells (p=0.0011). Regarding the other correlations between variables, no significant associations were detected. In conclusion, poorly differentiated squamous cell carcinomas located in the palate have higher immunostaining of Bmi-1, which can characterize activation of the Epithelial-Mesenchymal Transition process in these tumors.
Instrument Design May Influence Bacterial Reduction During Root Canal Preparation
Authors: Machado Manoel Eduardo de Lima , Nabeshima Cleber Keiti , Caballero-Flores Hector , Elmadjian-Filho Moyzés , Duarte Marco Antônio Húngaro , Odinola-Zapata Ronald , Cai Silvana
Published: November 2017

Abstract The aim of this study was to evaluate the bacterial reduction promoted by ProTaper Next and Twisted File by comparing to ProTaper Universal and manual technique. Sixty distobuccal root canals of maxillary molars sterilized with ethylene oxide were contaminated with Enterococcus faecalis broth culture. After incubation for 21 days, bacterial samples were collected and cultured on m-Enterococcus agar plates. The root canals were divided into 4 groups, according to the system used for instrumentation: ProTaper Next, Twisted File, ProTaper Universal, and crown down manual technique. Other 8 uncontaminated root canals were control asepsis. Bacterial samples were collected immediately and 7 days after instrumentation. The bacterial reduction was calculated and then made intragroup analysis by paired t-test and intergroup analysis by ANOVA and Tukey tests, all at 5% significance. All techniques significantly reduced the bacterial number in the root canal (p<0.05). ProTaper Next and Twisted File resulted in more bacterial reduction than ProTaper Universal and manual technique (p<0.05). ProTaper Next and Twisted File were similar (p>0.05). It can be concluded that ProTaper Next and Twisted File promote a higher bacterial reduction than Protaper Universal and manual technique.
Decrease in Mandibular Cortical in Patients With Type 1 Diabetes Mellitus Combined with Poor Glycemic Control
Authors: Limeira Francisco Ivison Rodrigues , Rebouças Patrícia Ravena Meneses , Diniz Denise Nóbrega , Melo Daniela Pita de , Bento Patrícia Meira
Published: November 2017

Abstract In this study we analyzed the mandibular cortical bone of patients with type 1 diabetes mellitus (T1DM) and non-diabetic. Fifty patients with T1DM and 100 non-diabetic ones paired by age and gender were analyzed. Two double-blinded observers evaluated 150 digital panoramic images of both groups. The mandibular cortical bone was analyzed using the Mandibular Cortical Index (MCI), Mental Index (MI), Gonial Index (GI), Antegonial Index (AI) and Upper and Lower Panoramic Mandibular Indexes (UPMI and LPMI), with the aid of RADIOIMP® software. Influence of T1DM in the morphology of the mandibular cortical bone was studied based on obtaining data related to T1DM diagnosis time, blood glucose level, T1DM control and the presence of chronic complications. Collected data were submitted to descriptive (mean and standard deviation) and inferential analyzes (Pearson’s chi-squared test and Fisher’s exact test) (p≤0.05). According to the MCI, individuals with T1DM had higher frequencies of mandibular cortical alterations, in both sexes and all age groups (p<0.01). For quantitative indexes, MI, GI, AI, UPMI and LPMI, female patients showed statistically significant differences for GI and AI, while male patients had statistically significant differences for all indexes (p<0.05), presenting the individuals with TDM1 inferior measures. Individuals with poor T1DM control showed significantly higher frequency of mandibular cortical alteration (92.3%), with lower means for MI, GI, AI and LPMI (p≤0.05). In conclusion, patients with T1DM showed decrease in the mandibular cortical bone when compared to non-diabetic ones, indicating that poor disease control is associated with these alterations.
Radiopacity Evaluation of Gutta-Percha Points in Thinner Samples than the ANSI/ADA Recommendation
Authors: Petry Bruna Lucian , Bodanezi Augusto , Baldasso Flávia Emi Razera , Delai Débora , Larentis Naiara Leites , Fontanella Vania Regina Camargo , Kopper Patrícia Maria Poli
Published: November 2017

Abstract The aim of this study was to evaluate the radiopacity of different gutta-percha points (Endo Points®, Dentsply®, Tanari®, Meta®, Roeko® and Odous®) in samples of 1 mm thick as established by ANSI/ADA Specification #57 and ISO 6876/2001, in comparison with thinner samples. Twelve test specimens for each material, four for each thickness (0.3, 0.6, and 1 mm and diameter of 8 mm), were laminated and compressed between two polished glass plates until the desirable thickness. Digital radiographs were obtained along with a graduated aluminum stepwedge varying from 1 to 10 mm in thickness. The X-ray unit was set at 70 kVp, 10 mA and 0.4 s exposure time, at a focal distance of 36 cm. One calibrated observer quantified the average values of pixels with Adobe Photoshop® software. Data were analyzed using ANOVA and Tukey tests, at 5% significance level. At 0.6 and 1 mm thickness, all the tested materials showed radiopacity higher than 3 mm of aluminum (reference value). At 0.3 mm thickness, Odous and Tanari presented significantly less radiopacity than the reference, and the other materials showed similar radiopacity to the reference. The study concluded that the materials demonstrated different radiopacities and all had values above the minimum recommended by ANSI/ADA specification #57, being Odous and Tanari less radiopaque than the reference value in thinner samples (0.3mm).
Oxygen Saturation in the Dental Pulp of Maxillary Premolars in Different Age Groups - Part 1
Authors: Estrela Carlos , Serpa Giuliano C. , Alencar Ana Helena G. , Bruno Kely F. , Barletta Fernando B. , .Felippe Wilson T , Estrela Cyntia R.A. , Souza João B
Published: November 2017

Abstract The aim of this study was to determine oxygen saturation levels in the dental pulp of maxillary premolars in different age groups. A total of 120 human maxillary premolars with normal dental pulps were selected covering the following age groups: 20-24, 25-29, 30-34, 35-39 and 40-44 years (n=24 each group). Oxygen saturation was assessed using pulse oximetry. Analysis of variance was used to assess differences in oxygen saturation levels and Tukey’s test was used to identify the age groups that differed from each other. Significance was set at 0.05. Mean oxygen saturation of 120 premolars was 86.20% considering all age groups. Significantly reduced levels were found in the oldest group compared to the other groups: 40 to 44 years - 80.00% vs. 89.71, 87.67, 88.71, and 84.80% for age groups 20-24, 25-29, 30-34, 35-39 years, respectively. The mean oxygen saturation levels were similar between 20 and 39 years of age (86.20%) in the whole sample, but reduced significantly in the 40-44-year age group, suggesting that older patients present lower oxygen saturation results even in the absence of pulp tissue injury.
Impact of Material Shade and Distance from Light Curing Unit Tip on the Depth of Polymerization of Composites
Authors: Faria-e-Silva André L. , Fanger Christopher , Nguyen Lillian , Howerton Demetri , Pfeifer Carmem S.
Published: November 2017

Abstract This study aimed to evaluate the effect of the composite shade and distance from the light-curing unit (LCU) tip on the irradiance reaching the bottom of composite disks and on the depth of polymerization. Composites of three shades (opaque - OXDC, bleach - BXL, and A2) were inserted into molds with 3-mm of thickness positioned over a spectrometer and photo-activated with the LCU (Bluephase) tip placed at 0 or 1 cm from the composite surface. The mean irradiance reaching the bottom of composite was recorded during the entire photo-activation (30 s). Specimens (2 x 2 x 4 mm) were polymerized and used to map the degree of conversion achieved in different depths from irradiated surface. Specimens were sectioned into slices that were positioned over the platform of the infra-red microscope connected to the spectrometer to map the conversion. The conversion was measured in eight different depths every 500-µm. Increasing the distance of LCU tip reduced the irradiance only for A2. Interposing OXDC disks resulted in lowest values of irradiance and A2 the highest one. A tendency to decrease the conversion was observed towards the bottom of specimens for all experimental conditions, and the slope was more accentuated for OXDC. Differences among shades and distances from LCU tip were evident only beyond 1.5-2.0 mm of depth. In conclusion, both composite shade and distance from LCU tip might affect the light-transmission and depth of polymerization, while the effect of last was more pronounced.
LAS REPRESENTACIONES SOCIALES Y LA COGNICIÓN SOCIAL: CONTRIBUCIONES PARA LA INVESTIGACIÓN EN ENFERMERÍA Y SALUD
Authors: Morera Jaime Alonso Caravaca
Published: November 2017

RESUMEN Objetivo: analizar el potencial que el Paradigma Teórico de las Representaciones Sociales y la Cognición Social poseen en las investigaciones en enfermería y salud. Método: reflexión construida con el apoyo de autores considerados referencias en la elaboración, complementación y difusión de este paradigma, con importante trayectoria en el área de la psicología social y ciencias de la salud. Resultados: partiendo de la especificidad del objeto epistemológico de la enfermería que es el cuidado, las Representaciones Sociales podrían ser consideradas como elementos autóctonos de las cogniciones lego/seglares y cotidianas, que auxilian en la construcción social de la realidad y en la organización de prácticas de atención. Conclusión: a la luz de estos registros, se resalta que el valor heurístico de las Representaciones Sociales y la Cognición Social, ha venido sustentándose desde su propuesta en la década de 1960. Consecuentemente, los tres modelos advenidos como resultado irrefutable del desarrollo del campo de estudio de las representaciones sociales en salud, han permitido una aproximación significativa por parte de algunas investigaciones en enfermería y áreas afines.
A characterization of ecosystem services, drivers and values of two watersheds in São Paulo State, Brazil
Authors: Periotto N. A. , Tundisi J. G.
Published: November 2017

Abstract The evaluation of ecosystem services is a tool to raise awareness about benefits of ecosystem functions for human well-being. In Brazil, few studies and reports assess ecosystem services in a watershed context. The aim of this paper is to fill this gap by assessing ecosystem services of Jacaré-Guaçu and Jacaré-Pepira Watersheds (São Paulo State, Brazil) in a temporal scale of 10 years. Land cover and uses’ capacity to provide ecosystem services and drivers were assessed as a result of mapping these areas. Economic values were estimated based on literature information. Results showed that cultivated and managed terrestrial areas stands out over other areas and then, regulation and maintenance services are reduced in these areas. Wetlands and natural vegetation, with smaller areas, are important for the supply of regulation and maintenance services of both watersheds and economic values indicate the magnitude of degradation or maintenance/restoration.
The life cycle of Neotropical ground beetle, Abaris basistriata (Coleoptera: Carabidae) reared on different substrates
Authors: Barbosa-Andrade C. L. , Cividanes F. J. , Matos S. T. S. , Andrade D. J.
Published: November 2017

Abstract Carabids are recognized worldwide as biological control agents of agricultural pests. The objective was to compare the life cycle of Abaris basistriata Chaudoir (Coleoptera: Carabidae) on three substrates: soil, fine vermiculite, or paper napkins. The biological cycle of A. basistriata presented different durations in soil and paper. The viability of eggs and larvae survival of the first and second instars were similar on all three substrates, while the third instar and pupa in the soil presented higher survival when compared with vermiculite and paper. The soil substrate was more favorable for the longevity of the carabid beetle. Abaris basistriata showed a shorter pre-oviposition period and a higher oviposition and post-oviposition period in the soil. Fecundity and fertility were higher when A. basistriata was reared on soil. The soil was most favorable substrate for rearing of A. basistriata in the laboratory. This information may make this species useful for the biological control.
PRODUCTION OF MINI-CUTTINGS AND THE INFLUENCE OF LEAF REDUCTION ON ROOTING OF VINHÁTICO (Plathymenia foliolosa Benth.)
Authors: Neubert Victor de Freitas , Xavier Aloísio , Paiva Haroldo Nogueira de , Dias Poliana Coqueiro , Gallo Ricardo
Published: November 2017

ABSTRACT The objective of this work was to evaluate the production and survival of the mini-stumps in mini-clonal hedge and the effect of leaf reduction of mini-cuttings on rooting and seedling growth of progenies of Vinhático (Plathymenia foliolosa) by mini-cutting. Apical mini-cuttings were used to evaluate the influence of leaf reduction on the rooting of vinhático; the mini-cuttings ranged between 8 to 10 cm in length and samples were subjected to100% leaf reduction (without leaf), 75% of leaf reduction, or no leaf reduction. As for the survival of mini-stumps in mini-clonal hedge, after the fourth successive mini-cuttings collection, P3 and P19 progenies showed the highest survival percentages (64.5% and 61.5%, respectively), while progenies P1 (32.3 %) and P45 (25%) showed the lowest values for this parameter. The average number of mini-cuttings/mini-stump/collection produced ranged from 0.83 (progeny 53) to 4.8 (progeny 01) and the average productivity was 120 m2 mini-stumps/mini-cuttings per collection. These results suggest that leaf reduction in adventitious rooting in mini-cuttings did not result in any difference between foliar treatments without reduction and 75% leaf reduction; however, 100% mortality was observed when the mini-cuttings were made with total leaf reduction.The progenies studied showed potential regeneration of mini-stumps, thus allowing the realization of successive collections of young shoots.
METHODS FOR ALLEVIATION AND REDUCTION OF THE EFFECTS OF GROWTH STRESSES IN Eucalyptus urophylla
Authors: Silva Juliana Cristina da , Carvalho Ana Márcia Macedo Ladeira , Faria Bruno de Freitas Homem de
Published: November 2017

ABSTRACT There are many species of the Eucalyptus genus presents high levels of the growth stress. These stresses are mechanical efforts generated during the tree growth to help maintaining the balance of the cup in response to environmental and silvicultural agents. The stresses are responsible for the cracks of tops and for the warp after unfolding. The objective of this study was to test five different methods to minimize the effects of growth stress on the production of Eucalyptus urophylla sawlogs. The boards produced were then evaluated and measured for cracking, arching, curvature and cupping. The treatment with herbicide presented the smallest medium indexes of cracking (16.63 cm) and of arching (0.23 mm.m-1), while the medium curvature was smaller than observed in boards unfolded in 72 hours after the reduction of the trees (0.88 mm.m-1). Unfolding after ten days of harvesting represented the less efficient technique in the cracking control, curvature and arching. The cupping was not observed during boards processing. The herbicide application was more efficient in the reduction of the effects of the growth tensions.
ENERGY PROPERTIES OF WOOD PARTICLES TORREFIED AT DIFFERENT TEMPERATURES
Authors: Silva Carlos Miguel Simões da , Vital Benedito Rocha , Carneiro Angélica de Cassia Oliveira , Oliveira Aylson Costa , Araújo Solange Oliveira , Magalhães Mateus Alves de
Published: November 2017

ABSTRACT The objective of this study was to evaluate the effect of the final torrefaction temperature on the energy properties of wood. It was applied four treatments with three replicates, consisting of untreated wood particles and particles torrefied at temperatures of 170, 220 and 260ºC. Better physical, chemical and thermal properties of the particles were observed as a function of the torrefaction temperature. Comparing with the control group, the particles torrefied at the highest final temperature (260ºC) showed significant differences in bulk density - from 239 to 396kg/m3; the equilibrium moisture content changed from 12.3 to 5.7%; fixed carbon content - from 13.0 to 24.8%; heating value - from 4,465 to 4,945kcal/kg; and energy density - from 882 to 1,727Mcal/m3. It was concluded that torrefaction had a positive effect on the energy properties of the wood.
Elderly patients with facial trauma: a 10 year review
Authors: Giacomin Mateus , Conto Ferdinando De , Siqueira Simone Pinheiro , Signori Pedro Henrique , Eidt João Matheus Scherbaum , Sawazaki Renato
Published: November 2017

Abstract Objective: to analyze the epidemiological profile of geriatric patients with facial trauma treated at a Maxillofacial Surgery Department in southern Brazil over a period of 10 years. Methods: a retrospective analysis of the medical records of patients aged over 60 years treated for facial trauma in the period from January 2001 to December 2010 was performed. Result: of a total of 1,385 analyzed medical records of patients with facial trauma, 86 (6.2%) belonged to the group aged 60-89 years. The male gender was the most affected and the age group 60-69 years was the most frequently involved. The middle third was the most affected, and the zygomatic bone was the most commonly fractured. Conclusion: special attention should be given to the 60-69 age group, as while such patients present physiological changes inherent to aging, they remain active in society and exposed to risk factors for facial trauma.
Assessment of hemodynamic and vascular parameters in Alzheimer's disease, vascular dementia and mild cognitive abnormalities: a pilot study
Authors: Santos José Ivany dos , Rodrigues Chrystian Junior , Zogheib Juliana Barroso , Malachias Marcus Vinícius Bolívar , Rezende Bruno Almeida
Published: November 2017

Abstract Objectives: this pilot study correlated cardiovascular parameters such as atherosclerosis and arterial stiffness in patients with aged-related dementia and sought to identify hemodynamic differences that can help in differential diagnosis. Method: a longitudinal prospective study was performed of 46 patients aged 60 to 80 years in the city of Belo Horizonte, Minas Gerais, Brazil. The patients were classified into three groups: those with Alzheimer’s disease (AD), vascular dementia (VD) or mild cognitive impairment (MCI). The groups were classified by clinical examination and CT or magnetic resonance imaging tests of the encephalon. The arterial stiffness and other hemodynamic parameters of the patients were measured using the Mobil-O-Graph device and carotid artery ultrasound scanning. Data analysis was performed by descriptive statistics, multinomial logistic regression and analysis of variance. Results: 18 patients (39.1%) had MCI, 18 (39.1%) AD and 10 (21.8%) VD. Image exams revealed greater obstructive microangiopathy in the AD group than the MCI group (p<0.05), which in turn exhibited greater normality in such tests than the AD group (p<0.05). There were no significant differences among the groups for the hemodynamic variables. The carotid artery ultrasound examinations identified a greater degree of normality in the MCI group than the AD group (p<0.05). Conclusion: the results do not support the idea of using noninvasive hemodynamic evaluation methods as additional exams in the differential diagnosis of these pathologies.
Evaluation of the effectiveness of a care program for elderly patients with hip fractures: a network strategy
Authors: Farias Fatima Izabel Dornelles , Terra Newton Luiz , Guerra Marcelo Teodoro Ezequiel
Published: November 2017

Abstract Objective: Evaluate the effectiveness of a care program for elderly persons with hip fractures due to a fall, based on a public network in Canoas, Rio Grande do Sul, Brazil. Methods: a prospective cohort study of quantitative character was carried out. A total of 182 elderly person above 60 years diagnosed with hip fractures were included. The sample was divided into two groups, one who underwent their usual treatment (n=91) and another who were included in a care program for elderly persons with hip fractures (n=91). The program had as its main axis a clinical Protocol and an Access Protocol. The treatment of choice was surgical in all cases. In statistical analysis, categorical variables were described by absolute and relative frequencies. The Mann-Whitney test was used to compare numeric variables. In the comparison of proportions, the Pearson's Chi-squared test or Fisher's exact test were applied. The significance level adopted was 5%. Results: The average age was 79.4 years, with a prevalence of the female gender. The most frequent morbidity was hypertension. After the implementation of the program there was a reduction in the average time between the fracture and the beginning of surgery, the average length of hospitalization, the urinary tract infection rate, the death rate and care costs. Conclusion: The care program of elderly persons with hip fractures modified the expected results as it reduced mortality, average hospital stay, postoperative complications and the costs of treatment during the hospitalization.
Perception of oral health in home care of caregivers of the elderly
Authors: Bonfá Karla , Mestriner Soraya Fernandes , Fumagalli Igor Henrique Teixeira , Mesquita Luana Pinho de , Bulgarelli Alexandre Fávero
Published: November 2017

Abstract Objective: to analyze the perception of caregivers of elderly persons regarding their own oral health care and that of the elderly individuals. Method: a descriptive-exploratory study with a qualitative approach was carried out. Semi-structured interviews with 13 caregivers were conducted, recorded and transcribed, and the Content Analysis technique was applied. Results: All respondents were informal caregivers, most of whom were female, aged over 50, married, had some degree of kinship with those receiving care, an incomplete elementary school education and no other occupation or job. After analyzing the interviews, the data were grouped into the following categories: a) home visits and health professionals; b) caregiver experience and care of the elderly; and c) the caregiver and their self-care. Conclusion: knowledge of caregivers’ perception of their own oral health and that of dependent/semi-dependent elderly persons assists in planning, promotion, prevention and health recovery. The work of a multi-professional team is therefore essential in the seeking out and instruction of these individuals.
The work and the health of elderly butchers: case reports from a municipal market
Authors: Rios Marcela Andrade , Vilela Alba Benemérita Alves , Nery Adriana Alves
Published: November 2017

Abstract The present study aimed to verify the health and work conditions of seven elderly workers carrying out informal labor activities in a municipal market and to describe the accidents they suffered at work. A qualitative case study was carried out with seven elderly butcher workers from a municipal market in Bahia, Brazil. The participants were men and women with limited schooling (up to high school level in one case), who lived with others at home and had worked for an average of 31 years in the butcher business. Despite the stress involved, such as uncomfortable physical positioning and few days off, all the participants said they were satisfied with their jobs. They were affected by chronic diseases, especially arterial hypertension, and said they were aware of the risks involved in their work. They had suffered accidents at work from finger cuts to amputation. Such workers require activities that promote health and protection from work-related accidents and injuries to avoid the problems that transform the process of senescence into senility.
Relationship between strength and muscle mass in middle-aged and elderly women: a cross-sectional study
Authors: Souza Carine Fernandes de , Vieira Mariana Carmem Apolinário , Nascimento Rafaela Andrade do , Moreira Mayle Andrade , Câmara Saionara Maria Aires da , Maciel Álvaro Campos Cavalcanti
Published: November 2017

Abstract Objective: to analyze the relationship between handgrip strength and lower limb strength and the amount of segmental skeletal muscle mass in middle-aged and elderly women. Methods: an observational, cross-sectional, observational study of 540 women aged between 40 and 80 years in the cities of Parnamirim and Santa Cruz, Rio Grande do Norte, was performed. Sociodemographic data, anthropometric measurements, handgrip dynamometry, knee flexors and extensors of the dominant limbs, as well as the segmental muscle mass of the limbs were evaluated. Data were analyzed using Student's t-Test, Chi-square test, Effect Size and Pearson's Correlation (CI 95%). Results: there were statistically significant weak and moderate correlations between handgrip strength and upper limb muscle mass, knee flexion strength and lower limb muscle mass, and between knee extension strength and lower limb muscle mass for the age groups 40-59 years and 60 years or more (p<0.05). Conclusions: muscle strength correlates with skeletal muscle mass. It could therefore be an indicator of the decrease in strength. It is not the only such indicator, however, as correlations were weak and moderate, which suggests the need for more studies on this theme to elucidate which components may also influence the loss of strength with aging.
Consumption and social and demographic profile of the different household arrangements of the elderly in Brazil: analysis from the Study on Family Budgets
Authors: Melo Natália Calais Vaz de , Teixeira Karla Maria Damiano , Silveira Mirely Bonin
Published: November 2017

Abstract Objective: to define the social and demographic profile of the different household arrangements involving the elderly, as well as to calculate the average annual consumption of such household arrangements according to the Pesquisa de Orçamentos Familiares (the Study on Family Budgets) (2008/2009). Method: a quantitative, descriptive, cross-sectional study was performed using secondary data extracted from the micro-data of the Study on Family Budgets (2008/2009), carried out by the Instituto Brasileiro de Geografia e Estatística (the Brazilian Institute of Geography and Statistics). In order to define the social and demographic profile of different household arrangements an exploratory analysis of the data was carried out, and the Gini index was used to identify if there was inequality in the distribution of consumption. Results: The results showed that elderly consumers can be seen as constituents of new generations, while most have only an elementary education and reside in an urban region of Brazil. There was a predominance of female heads of households in which there was no spouse present. When evaluating the distribution of the annual consumption of all the families, a greater weighting of the categories miscellaneous expenses, housing, transportation and food was found. Conclusions: Understanding the socioeconomic characteristics of the different home arrangements of the elderly, as well as their relationships with the consumption of goods and services, is extremely important, since the goods and services offered to this segment of the population can provide satisfaction with and improvement in quality of life.
Multimorbidity associated with polypharmacy and negative self-perception of health
Authors: Cavalcanti Gustavo , Doring Marlene , Portella Marilene Rodrigues , Bortoluzzi Emanuelly Casal , Mascarelo Andreia , Dellani Marcos Paulo
Published: November 2017

Abstract Objective: to verify the association between the multimorbidity of the elderly and sociodemographic variables, self-perception of health and polypharmacy. Method: a cross-sectional study was performed. The research data was collected using the Health, Well-Being and Aging questionnaire. The sample was composed of 676 people aged 60 years or more, who were residents of small towns in the north of the state of Rio Grande do Sul, Brazil. The dependent variable was multimorbidity, that is, the occurrence of two or more chronic non-communicable diseases in the same person. The independent variables were demographic, socioeconomic and health-related characteristics. Poisson’s raw and robust regression model was used to analyze the effect of the independent variables in relation to the outcome and p was considered significant when <0.05. Result: among the elderly interviewed, 45% presented multimorbidity, 51.1% reported a self-perception of poor/very poor health and 37.1% used polypharmacy. After the analysis was adjusted to the occurrence of multimorbidity, association with the following variables was found: health perception (regular/poor/very poor) PR=1.15 (CI95%; 1.09 - 1.22) and use of polypharmacy PR=1.29 (CI95%; 1.22 - 1.35). Conclusion: Multimorbidity may interfere negatively in the self-perception of health of the elderly contributing to increased medicine consumption.
Medication use by the elderly: analysis of prescribing, dispensing, and use in a medium-sized city in the state of São Paulo
Authors: Stefano Isabel Cristina Aparecida , Conterno Lucieni Oliveira , da Silva Filho Carlos Rodrigues , Marin Maria José Sanches
Published: November 2017

Abstract Objective: To describe the prescribing, dispensing, use, adhesion, and storage of medicines to and by the elderly. Method: A descriptive cross-sectional study was performed in Estratégia Saúde da Família (Family Health Strategy) health centers (ESF), in Marília in the state of São Paulo, Brazil, based on the records of and interviews with 114 individuals seven to ten days after a medical consultation. A descriptive analysis was carried out. Results: The mean number of prescribed drugs was 4.98 per elderly patient. Of the total number of prescribed drugs, 81.5% were supplied by public services, with the nutrient (50%); antilipemic (62.1%); analgesic (30.7%); dermo-protector (66.6%); herbal (40%) and parasite and antifungal (37.5%) classes dispensed the least. A total of 83.8% of the prescribed drugs were used, while the drugs dispensed at the lowest rates were not used by the elderly, except for analgesics. A total of 40.3% of the respondents exhibited low adherence. Most stored their medicines in a suitable place. Conclusion: The prescribing, dispensing, use and storage of medications to and by the elderly can be considered effective, but adherence remains low, requiring new strategies and interventions.