Associação entre o espaço de pronúncia do som /s/ e os trespasses incisais em indivíduos dentados e edentados

O objetivo deste estudo foi determinar a associação do espaço de pronúncia do som /s/ com os trespasses vertical e horizontal em dois grupos de indivíduos. O Grupo I foi formado por 61 indivíduos com dentição permanente completa e o Grupo II por 33 usuários de próteses totais. Todos tiveram seus movimentos mandibulares determinados por um método eletromagnético. O espaço de pronúncia do /s/ foi obtido em cada indivíduo conforme eram instruídos a dizer a palavra 'seis' por três vezes. A distância interoclusal média durante a produção do /s/ foi considerada como sendo o espaço de pronúncia do /s/. Os trespasses incisais vertical e horizontal também foram mensurados. Os valores médios do espaço de pronúncia do /s/ foram 2.22 mm (± 1.38) para o Grupo I e 2.61 mm (± 1.53) para o Grupo II. Para o Grupo I, observou-se associação entre o espaço de pronúncia do /s/ e os trespasses vertical (r=0.36, PThe purpose of this study is to determine the association of speaking space of /s/ sound with vertical and horizontal overlaps for two subject groups. Group I comprised 61 subjects with complete permanent dentition and Group II comprised 33 complete denture wearers. They had their mandibular movement determined by using an electromagnetic method. Speaking space of /s/ was obtained from each subject as they were instructed to say the word 'seis' three times. The mean interocclusal distance during /s/ production was considered the speaking space of /s/. Vertical and horizontal incisor overlaps were also measured. The mean value of speaking space of /s/ was 2.22 mm (± 1.38) for Group I and 2.61 mm (± 1.53) for Group II. In Group I, significant correlations were found between the speaking space of /s/ and vertical overlap (r=0.36,

Impact of immediately loaded implant-supported maxillary full-arch dental prostheses: a systematic review

The immediate loading of implant-assisted fixed prostheses in edentulous maxillae may achieve favorable success rates with reduced treatment time. An evidence summary of clinical trials is key to recommend loading protocols in these cases. Objectives: To compare immediately loaded, fully implant-supported complete dentures to early and conventional/delayed loading in the edentulous maxillae of adult patients by a systematic review of controlled clinical trials (CCT). Methodology: CCTs reports were identified up to January 17, 2019 from Cochrane Oral Health Group’s Trial register, Cochrane Central Register of controlled trials (CENTRAL), MEDLINE (Ovid), BIOSIS, EMBASE, CINAHL, Web of Science, and DARE. Two independent reviewers screened titles/abstracts and confirmed inclusion using full texts. Data were extracted and quality assessed (Cochrane Risk of Bias tool) independently and in duplicate. Study heterogeneity prevented pooling by meta-analysis. Results: Out of 1,052 candidate studies, four CCTs were included. Two trials had patient satisfaction as an outcome: (1) A randomized trial compared immediately and early loaded fixed dentures and found more satisfaction with the first after 12 months; (2) A non-randomized study found better satisfaction with immediate fixed dentures compared to conventional loading after 3 months (no more at 12 months). Regarding implant success and prosthetic complications, three trials did not report significant differences comparing immediate loading to other protocols. Conclusions: This review found weak evidence of differences between immediate load and other loading regimens, regarding patient satisfaction and maintenance events/adversities. The potential of immediate loading for favorable results in edentulous maxillae reinforces the need for well-designed RCTs, for solid clinical guidelines. Registration number CRD42018071316 (PROSPERO database)

Influence of incorporation of fluoroalkyl methacrylates on roughness and flexural strength of a denture base acrylic resin

Fluorinated denture base acrylic resins can present more stable physical properties when compared with conventional polymers. This study evaluated the incorporation of a fluoroalkyl methacrylate (FMA) mixture in a denture base material and its effect on roughness and flexural strength. A swelling behavior assessment of acrylic resin specimens (n=3, per substance) after 12 h of FMA or methyl methacrylate (MMA) immersion was conducted to determine the solvent properties. Rectangular specimens (n=30) were allocated to three groups, according to the concentration of FMA substituted into the monomer component of a heat-polymerized acrylic resin (Lucitone 550), as follows: 0% (control), 10% and 20% (v/v). Acrylic resin mixed with concentrations of 25% or more did not reach the dough stage and was not viable. The surface roughness and flexural strength of the specimens were tested. Variables were analyzed by ANOVA and Tukey's test (a=0.05). Immersion in FMA produced negligible swelling, and MMA produced obvious swelling and dissolution of the specimens. Surface roughness at concentrations of 0%, 10% and 20% were: 0.25 ± 0.04, 0.24 ± 0.04, 0.22 ± 0.03 mm (F=1.78; p=0.189, not significant). Significant differences were found for flexural strength (F=15.92; p<0.001) and modulus of elasticity (F=7.67; p=0.002), with the following results: 96 ± 6, 82 ± 5, 84 ± 6 MPa, and 2,717 ± 79, 2,558 ± 128, 2574 ± 87 MPa, respectively. The solvent properties of FMA against acrylic resin are weak, which would explain why concentrations over 20% were not viable. Surface changes were not detected after the incorporation of FMA in the denture base acrylic resin tested. The addition of FMA into denture base resin may lower the flexural strength and modulus of elasticity, regardless of the tested concentration

Behaviors and hygiene habits of complete denture wearers

In this study, a questionnaire was applied to patients from Ribeirão Preto Dental School, University of São Paulo, Brazil, to evaluate the hygiene methods and habits concerning the use of complete dentures, the age of dentures, and whether patients have been instructed on how to clean their dentures. The mean age of patients was 63.35 years, and most of them were females (82.08%). The results showed that 62.26% of the respondents had been using the same maxillary complete denture for more than 5 years, and 49.06% used the same mandible complete denture for more than 5 years. Of the patients interviewed, 58.49% slept with the dentures. Mechanical brushing was the most used cleaning method by the patients (100%), using water, dentifrice and toothbrush (84.91%). Most patients (51.89%) reported never having been instructed by their dentists as to how to clean their dentures. Based on the limitations of this study, it was concluded that the patients interviewed had limited knowledge about prosthetic hygiene and oral care. The method more used by patients was the mechanical method of brushing, most patients used the same complete dentures for more than 5 years and slept with the dentures.Foi realizada uma pesquisa na Faculdade de Odontologia de Ribeirão Preto - Universidade de São Paulo, por meio da aplicação de questionário, para avaliar os métodos de higiene e hábitos referentes ao uso de prótese total, idade das próteses, e se os pacientes têm sido instruídos em como limpar suas próteses. A idade média dos pacientes estudados foi 63,35 anos, a maioria (82,08%) do sexo feminino. Os resultados mostraram que 62,26% dos entrevistados usavam a mesma prótese total superior há mais de 5 anos, e 49,06% a mesma prótese total inferior. Dos pacientes entrevistados, 58,49% dormiam com as próteses. O método mais utilizado pelos pacientes foi o método mecânico de escovação (100% dos pacientes), utilizando água, pasta e escova de dente (84,91%). A maioria dos pacientes (51,89%) relatou nunca ter sido orientado pelos dentistas de como higienizar as próteses. Baseado nas limitações deste estudo, concluiu-se que os pacientes entrevistados tinham conhecimento limitado sobre higiene protética e cuidados bucais. O método de higiene mais utilizado foi a escovação da prótese, a maioria dos pacientes usavam a mesma prótese total há mais de cinco anos e dormiam com as próteses

Comparison of physical and mechanical properties of microwave-polymerized acrylic resin after disinfection in sodium hypochlorite solutions

This study evaluated the color stability, surface roughness and flexural strength of a microwave-polymerized acrylic resin after immersion in sodium hypochlorite (NaOCl), simulating 20 min of disinfection daily during 180 days. Forty disk-shaped (15 x 4 mm) and 40 rectangular (65 x 10 x 3 mm) specimens were prepared with a microwave-polymerized acrylic resin (Onda-Cryl). Specimens were immersed in either 0.5% NaOCl, 1% NaOCl, Clorox/Calgon and distilled water (control). Color measurements were determined by a portable colorimeter. Three parallel lines, separated by 1.0 mm, were registered on each specimen before and after immersion procedures to analyze the surface roughness. The flexural strength was measured using a 3-point bending test in a universal testing machine with a 50 kgf load cell and a crosshead speed of 1 mm/min. Data were analyzed statistically by ANOVA and Tukey's test (?=0.05). There was no statistically significant differences (p>0.05) among the solutions for color, surface roughness and flexural strength. It may be concluded that immersion in NaOCl solutions simulating short-term daily use during 180 days did not influence the color stability, surface roughness and flexural strength of a microwave-polymerized acrylic resin.Este estudo avaliou a estabilidade de cor, rugosidade superficial e resistência à flexão de resina acrílica polimerizada por microondas após desinfecção em hipoclorito de sódio, simulando 20 min de desinfecção diária durante 180 dias. Quarenta espécimes circulares (15 x 4 mm) e 40 retangulares (65 x 10 x 3 mm) foram preparados em resina acrílica polimerizada por microondas (Onda-Cryl). As amostras foram imersas em hipoclorito de sódio a 0,5%, hipoclorito de sódio a 1%, Clorox/Calgon e água destilada (controle). Medidas de cor foram determinadas por um espectrocolorímetro portátil. Três linhas paralelas, separadas por 1,0 mm, foram registradas em cada amostra antes e depois dos procedimentos de imersão para analisar a rugosidade superficial. A resistência à flexão foi medida utilizando um teste de flexão por 3 pontos em uma máquina universal de ensaios com uma célula de carga de 50 Kgf e uma velocidade de 1 mm/min. Os dados foram analisados estatisticamente por ANOVA e teste de Tukey (?=0,05). Não houve diferença estatisticamente significante (p>0,05) entre as soluções para cor, rugosidade superficial e resistência à flexão. Pode-se concluir que a imersão em soluções de hipoclorito de sódio, simulando um uso diário de curta duração durante 180 dias, não influenciou a estabilidade de cor, rugosidade superficial e resistência à flexão de resina acrílica polimerizada por microondas.FAPESPCNP

O direito como instrumento de preservação cultural

CONTEXTO: Este artigo pretende analisar a atuação do Direito como instrumento de preservação cultural da Comunidade Quilombola de Vargem Comprida (BA) particularizando as características essenciais da comunidade a partir da identidade e do reconhecimento quilombola, de modo que é questionado se a Comunidade Quilombola de Vargem Comprida (BA) tem amparo jurídico para a preservação da cultura e identidade como comunidade remanescente de quilombo, considerando os critérios para demarcação, titulação e certificação das terras. OBJETIVO: Tem o objetivo de analisar o reconhecimento da Comunidade Quilombola de Vargem Comprida (BA) como terra remanescente de quilombo fundamentando-se em aspectos sociojurídicos, especificamente, na compreensão da identidade étnica para a promoção da preservação cultural e a emissão dos títulos de propriedade, considerando as perspectivas legais do art. 68 do ADCT, do Decreto nº 4.887/2003 e da Portaria nº 98/2007. MÉTODO: Foi utilizado o método de abordagem dedutivo, embasado em procedimento bibliográfico, voltado para a pesquisa exploratória e documental com base em uma seleção de dados qualitativos englobando o estudo do caso concreto. RELEVÂNCIA/ORIGINALIDADE: A discussão jurídica é necessária para delimitar pontos fundamentais da questão quilombola na atualidade, levando em consideração as particularidades do grupo étnico-tradicional baseadas na história de luta e resistência à opressão, que caracterizam a identidade dos remanescentes de quilombos e viabilizam o debate acerca dos mecanismos empregados para a preservação cultural da Comunidade Quilombola de Vargem Comprida (BA). RESULTADOS: Os parâmetros teóricos que fundamentam a base legal da questão quilombola é obstaculizado por entraves na efetivação dos direitos fundamentais, especificamente, do direito à propriedade, tornando-se imprescindível a implicação jurídica para a análise sociojurídica de base antropológica da importância das comunidades quilombolas na contemporaneidade brasileira. Compreende-se que a efetividade dos direitos fundamentais inerentes às comunidades quilombolas são negligenciados pelo Estado, uma vez que a emissão dos respectivos títulos de propriedade é realizada tardiamente. Por fim, para o reconhecimento da comunidade quilombola é necessário a certificação e emissão dos respectivos títulos com base nos aspectos da identidade étnica, da tradição cultural e da particularidade social dos remanescentes de quilombos. CONTRIBUIÇÕES TEÓRICAS/METODOLÓGICAS: A perspectiva histórico-cultural que engloba os aspectos tradicionais da Comunidade Quilombola de Vargem Comprida (BA) indica que a interação entre o saber jurídico e o saber antropológico é base viável para a discussão metodológica sobre a necessidade de observância de laudos antropológicos para a caracterização da identidade de um povo, considerando a importância de fomentar jurídica, social e legalmente os direitos fundamentais das comunidades quilombolas

Quality of life and functionality in athlete and non-athlete amputees

Amputation is the total or partial ablation of a member of traumatic or surgical way resulting in physical, psychological and social harm, with considerable reduction in quality of life (QL) and functionality in everyday activities. The sporting orientation has been recommended a complementary strategy of rehabilitation and social reintegration. The aim of the study was to analyze the quality of life and functionality in athletes and non-athletes with lower limb amputation. A cross-sectional study consisting of 45 amputees, divided into two groups was carried out: sportsperson GS (n = 23) and non sportsperson GNS (n = 22). The instruments used were The Short Form Health Survey (SF-36) and the Canadian Occupational Performance Measure (COPM). For analysis of demographic data was analyzed using the chi-square test, Student’s t for parametric data and the Mann-Whitney test for nonparametric adopted significance level of p &lt; 0.05. The GS apresented higher scores in all domains assessed by the SF-36 physical functioning (p &lt; 0.001), role limitations due to physical health (p &lt; 0.001), pain (p = 0.010), general health (p &lt; 0.001), energy/fatigue (p = 0.006), social functioning (p &lt; 0.001), role limitations due to emotional problems (p &lt; 0.001) and emotional well-being (p &lt; 0.001); similarly when assessed occupational performance (p &lt; 0.001) and satisfaction in performance in daily activities (p &lt; 0.001). Sport can reduce the restrictions of participation in daily activities contributing to increase the quality of life, developing skills for satisfactory functional performance.A amputação consiste na ablação total ou parcial de um membro, de forma traumática ou cirúrgica acarretando em danos físicos, psicológicos e sociais, com considerável redução da qualidade de vida (QV) e na funcionalidade em atividades cotidianas. A orientação esportiva tem sido recomendada como estratégia complementar a realibilitação e reintegração social. O objetivo do estudo foi analisar a qualidade de vida e a funcionalidade de adultos com amputação de membros inferiores praticantes e não praticantes de esportes. Foi realizado um estudo transversal composto por 45 amputados, divididos em dois grupos: esportista GE (n=23) e não esportista GNE (n=22). Os instrumentos utilizados foram o The Short Form Health Survey (SF-36) e a Medida Canadense de Desempenho Ocupacional (COPM). Para análise dos dados demográficos foi utilizado o teste qui-quadrado, T de Student para os dados paramétricos e de Mann-Whitney para os não paramétricos, adotado nível de significância p&lt;0,05. O GE apresentou maiores escores em todos os domínios avaliados pelo SF-36 funcionamento físico (p&lt;0,001), funções limitadas devido a saúde física (p&lt;0,001), dor (p=0,010), estado geral de saúde (p&lt;0,001), energia/fadiga (p=0,006) funcionamento social (p&lt;0,001), funções limitadas devido a problemas emocionais (p&lt;0,001) e bem estar emocional (p&lt;0,001); da mesma forma quando avaliado o desempenho ocupacional (p&lt;0,001) e a satisfação na performance nas atividades do cotidiano (p&lt;0,001). Foi concluído que amputados praticantes de esportes apresentaram melhores níveis de qualidade de vida e capacidade funcional quando comparados a não esportistas

USE OF NANOCOMPOSITE HYDROGEL WITH N-UREA IN THE PRODUCTION OF EGGPLANT SEEDLINGS

The use of quality seedlings of eggplant is directly related to the success of their production, with polymers added to the substrate, which work as water conditioners, increase the water retention capacity, and provide better seedling quality. The study aimed to evaluate the use of nanocomposite hydrogel enriched with different proportions of N-urea in the production of eggplant seedlings. The experiment was conducted at the State University of Mato Grosso do Sul, Cassilândia, MS, Brazil, from June to August 2019, under sombrite® 30%. Five treatments were evaluated, using the commercial substrate, Carolina Soil®: 1) commercial substrate without hydrogel; 2) commercial substrate with 0.075g of pure hydrogel (0.00g of N-urea)/15 mL of a substrate; 3) commercial substrate with 0.075g of hydrogel and 10% N-urea/15 mL of a substrate; 4) commercial substrate with 0.075g of hydrogel and 20% N-urea/15 mL of a substrate, and 5) commercial substrate with 0.075g of hydrogel and 40% N-urea/15 mL of a substrate. The experiment was conducted with four replications of 25 seedlings. The emergence speed index, percentage of emergence, height, number of leaves, stem diameter, shoot dry matter, root dry matter, and total dry matter were evaluated, as well as the Dickson Quality Index. The data were subjected to analysis of variance (SPEEDSTAT statistical software) and grouping test of means. A regression analysis was performed to adjust equations for some of the variables. The best seedlings can be obtained using the dosage of 28.83% N-urea with 0.075g of hydrogel per 15 ml of the substrate, according to the DQI adjustment, which includes several traits of the seedlings, thus reflecting on its quality

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

The development of opportunistic infections due to poor denture hygiene conditions justified the search for effective hygiene protocols for controlling denture biofilm. Objective This study evaluated Ricinus communis and sodium hypochlorite solutions in terms of biofilm removal ability, remission of candidiasis, antimicrobial activity, and participant satisfaction. Material and Methods It was conducted a controlled clinical trial, randomized, double-blind, and crossover. Sixty-four denture wearers with (n=24) and without candidiasis (n=40) were instructed to brush (3 times/day) and immerse their dentures (20 min/day) in different storage solutions (S1 / S2: 0.25% / 0.5% sodium hypochlorite; S3: 10% R. communis; S4: Saline).The trial period for each solution was seven days and a washout period of seven days was used before starting the use of another solution. The variables were analyzed at baseline and after each trial period. The biofilm of inner surfaces of maxillary dentures was disclosed, photographed, and total and dyed areas were measured (Image Tool software). The percentage of biofilm was calculated. Remission of candidiasis was assessed by visual scale and score were attributed. Antimicrobial activity was assessed by the DNA-Checkerboard hybridization method. Patient satisfaction was measured using a questionnaire. Results S1 (4.41±7.98%) and S2 (2.93±5.23%) were more effective then S3 (6.95±10.93%) in biofilm remotion(