Dimensões das furcas de primeiros pré-molares superiores e sua relação com curetas periodontais

The aim of this in vitro study was to comparatively evaluate the mesio and distal furcation entrance measurements of first maxillary premolar. The measurements were compared with different curette blades. A caliper was used by an examinator to acquire the measurements of root trunk (TR); 1 mm (D1) and 2 mm (D2) both below the furcation entrance. For this study Gracey, Mini Gracey, Padua Lima (PL) and Goldman Fox 4 curettes (Millenium) were selected. Measurements of DT - total distance of the active blade length, DI - width of the active blade, DM - width of the medium part of the active blade were obtained for the curettes. The measurements were obtained in both the coronary face and in the lateral face. The data TR, D1 and D2 presented normal distribution and were statistically analyzed by paired t-test. Statistically significant differences were found in the mesial root trunk region (TR) of both premolars. The mean of the measurements was greater than the distal. Mean and standard deviation were obtained, and both Gracey and Mini Gracey showed mean measurements compatible with the closer furcation entrance (D1 - 1 mm). Goldman Fox 4 showed adaptation only in the mesial face, and Padua Lima showed no access to any of the faces. Thereby it is concluded that the access of the furcation is narrow (D1). The mesial face of the root trunk (TR) showed mean measurement greater than distal face. Gracey and Mini Gracey curettes demonstrated to be compatible for both faces, mesial and distal of the first maxillary premolars studied.

Métodos de avaliação de risco de desordens músculo-esqueléticas nos membros superiores voltados para a odontologia

The dental professionals are exposed to many risks of development of occupational diseases and the musculoskeletal disorders in the upper limbs are the most common disease. This problem may result in lower productivity and / or early retirement. Therefore, early diagnosis should be done through a reliable and valid system of risk assessment. Because of that, this study set out to conduct a review of the literature on methods of risk assessment of musculoskeletal disorders in the upper limbs in dental professionals. Conclusion: It was concluded that the available methods for assessing the risk of musculoskeletal disorders in dentistry are self-reports, observational and direct. Among these methods, the self-reports were frequently used to detect the risk of musculoskeletal disorders among dentists, dental students and professionals from the dental team. Further studies should be performed in dentistry using observational and direct methods.

Análise dos troncos radiculares, abertura da raízes e projeções cervicais de esmalte de furcas de molares superiores e inferiores: Estudo in vitro

Periodontal treatment of teeth with furcation lesions often have unpredictable results due to several factors that may hinder therapy or influence the progress of periodontal disease. Of these, the length of the root trunk may contribute to the early injury of the furcations or even cause complications for the application of the treatment; the opening of the roots can guide the type of treatment to be instituted and cervical enamel projections may hinder the instrumentation of the region or even act as a retention plate niche. Thus, the purpose of this study was measured using a digital caliper, root logs database 400 molar both the 1st and the 2nd and both upper and lower as well as analyze using appropriate index type projection cervical enamel and through appropriate classification the opening of the roots in order to guide the diagnosis and treatment plan. We conclude that there is variation in measures of root trunk between the faces of the teeth examined and that greater cervical enamel projection (ECP) correlates with a decrease in the length of the root trunk in the sample evaluated as the first molars have higher occurrence of roots with a degree of opening larger than the second molars.

Análise por computação gráfica das alterações produzidas em próteses totais superiores imersas diretamente em água e pela termociclagem

Objectives: This study aimed to assess dimensional changes in acrylic resin base and artificial teeth position after water storage and thermocycling using computer graphics measurements. Methods: Twenty-four waxed replicas were obtained from a previous upper complete denture. For linear measurements, points in cusps tips of left central incisor and second premolars and molars were marked in one of the prostheses with graphite and transferred to the others using an acrylic resin guide. The prostheses were scanned after waxing, polymerization and treatments and the images were exported to “AutoCad 2002 Today®” software for measurements. Results: There was no statistically significant difference in changes of each segment for each group and between the phases evaluated after polymerization and thermocycling. In groups I and III, the values after polymerization are higher than those after treatment, which suggests shrinkage while the prostheses in group II have expanded. Conclusion: The three groups exhibited artificial teeth movement after tests in comparison to the polymerized prosthesis. The prostheses submitted to water storage in kiln at 36ºC during seven days showed different behavior than the other groups.

Clareamento dentário x autoestima x autoimagem

Dental changes that compromise facial harmony can have serious consequences on the social image of the patient. Depending on the emotional significance for the individual it can change interpersonal relationships, causing profound changes in their patterns of self-acceptance and self-image, with profound effects on their self-esteem of the patient. The search for tooth whitening as cosmetic factor for a harmonic smile grew sharply in the last decade. Although the color of the tooth represents only one aspect in the set of determinants of facial harmony, it is a strong factor because it is quickly perceived. This study aims to report the clinical case of a patient with spots on their upper central incisors. For the patient these spots have compromised her smile, causing harm and discomfort in their everyday social and professional relationships.

La Práctica de Recapsular Agujas por Profesionales de la Salud y Condiciones de los Depósitos de Material Corto-Punzante

El objetivo de este trabajo fue verificar la adhesión a la sugerencia de no recapsular agujas, basado en el comportamiento revelado por los cirujanos dentistas de la red municipal de salud bucal de la ciudad de Araçatuba en el estado de Sao Paulo, así como también observar la presencia de depósitos de material corto-punzante, las condiciones de llenado (por sobre el nivel recomendado o no) y su ubicación (cerca o lejos del profesional). Se recolectaron los contenedores de todas las unidades odontológicas de la red municipal. Después de la separación de otros elementos corto-punzante y materiales, además de la selección según como se recapsuló, se procedió al conteo de las agujas con la ayuda de una pinza larga y colocadas sobre una mesa revestida. Del total de 48 unidades odontológicas, se recolectaron 38 contenedores de elementos cortopunzantes con 5591 agujas desechadas. De estas, 2384 (42.7%) estaban recapsuladas por los dos lados, 2.177 (38.9%) en un lado y 1.030 (18.4%) sin recubrimiento. Se concluye que el índice de apego de estos profesionales a la recomendación de no recapsular las agujas es bajo. Los contenedores eran en la mayoría del tipo “Descarpak” y no estaban rellenados encima del nivel indicado; y a la vez se encontraban alejados del responsable de los desechos.

Capacidade de força dos membros superiores em competidores de montaria em touros

This study did evaluate the handgrip strength capacity of bull riding practitioners and recreational practitioners in order to obtain parameters of the muscular fitness of subjects undertaken this sports practice. Twenty right-handed subjects were grouped into bull riding athletes (10 individuals at AMT: 174.5 ± 5.2 cm of height, 78.9 ± 12 kg of body weight, 24.7 ± 6.1 years, and 13,8 ± 2.4% for body fat) and non-athletes (10 subjects n-AMR: 178.5 ± 7.3 cm of height, 81.2 ± 8.8kg of body weight, 21.7 ± 2.3 years, and 13.8 ± 1.9% of body fat). They were underwent to protocols of handgrip strength evaluation by a standard and specific dynamometry (simulating a bull riding posture) of right (DPD e DED) e left (DEP e DEE) hands. The dynamic force values from one repetition to maximum test (1RM) were either obtained in conventional load-based system for upper limbs exercises. The values were compared by the test-t for independent data, assuming ρ ≤ 0.05. The relationship between the values of strength from handgrip and dynamic exercises were drawn by Pearson correlation. The results of the AMT to DPD (43.8 ± 6.8kgf), DPE (39.4 ± 7.7kgf), DED (44.9 ± 5.6kgf), and DEE (39.8 ± 8.3kgf). For the n-AMT in DPD (47.0 ± 3.0kgf), DPE (42.2 ± 6.1kgf), DED (49.2 ± 1.5kgf), and DEE (46.2 ± 4.1kgf). Significant difference was observed between DED and DEE. The strength tests of 1RM at bench press (73.2 ± 12.0kg and 82.0 ± 12.0kg), arm-curl (45.2 ± 8.9kg and 43.8 ± 8.9kg), triceps pulley (67.0 ± 6.3kg and 72.0 ± 6.3kg), and pulley (73.5 ± 8.5kg and 73.7 ± 7.5kg) for groups n-AMT and AMT did not showed differences. Correlations were showed between all handgrip tests and elbow flexor force for AMT, and between DPD and elbow extensor, abductor, adductor and extensor of shoulder for n-AMT. influences to the performance of the force dynamometry. It could be concluded that handgrip force and dynamic strength of upper limbs did not were putative responses for bull riding practice.

Perfil antropométrico e força de membros superiores em competidores de montaria em touros

A força de preensão manual tem sido relatada como determinante no desempenho de empunhadura em modalidades como lutas e escalada. Este estudo teve por propósito avaliar a aptidão de força isotônica máxima e de preensão manual em praticantes e não praticantes de montaria em touros, a fim de obter parâmetros de referência desta população. Foram avaliados 20 sujeitos em dois grupos, sendo 10 classificados como atletas de montaria e 10 não-atletas. A avaliação da força de preensão manual foi realizada em dinamômetro em posição convencional (DP) e específica (DE), com ambas as mãos (D e E). A força isotônica máxima foi determinada pelo teste de uma repetição máxima (1RM) e também foram obtidas medidas de circunferência dos segmentos, bem como a composição corporal por protocolo de dobras cutâneas. Os valores das variáveis foram comparados pelo teste-t (ρ ≤ 0,05) para dados independentes. As relações entre os valores de força e características antropométricas foram traçadas pelo coeficiente de Pearson. Os resultados para AMT em DPD (43.8±6.8 kgf), DPE (39.4±7.7 kgf), DED (44.9±5.6 kgf) e DEE (39.8±8.3 kgf) comparados aos apresentados por n-AMT em DPD (47.0±3.0 kgf), DPE (42.2±6.1 kgf), DED (49.2±1.5 kgf) e DEE (46.2±4.1 kgf) apresentaram diferenças apenas para DED e DEE. A força nos testes de 1RM (supino reto: 73.2±12.0 kg e 82.0±12.0 kg; rosca direta: 45.2±8.9 kg e 43.8±8.9 kg; tríceps pulley: 67.0±6.3 kg e 72.0±6.3 kg; e puxada posterior: 73.5±8.5 kg e 73.7±7.5 kg) não mostram diferenças entre os grupos. A influência sobre a dinamometria apresenta-se diferente entre os grupos, sendo relevante a força de flexão do cotovelo em AMT e a antropometria e força isotônica para n-AMT. Conclui-se que as características morfo-funcionais de membros superiores não demandam especificidade à montaria em touros.

Desenvolvimento de sensor baseado em polímeros molecularmente impressos para determinação de álcoois superiores em óleo fúsel

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O efeito da contração muscular de membros superiores sobre o sistema nervoso autonômico de pessoas com fatores de risco cardiovascular

Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC

O efeito da contração muscular de membros superiores sobre o sistema nervoso autonômico de pessoas com fatores de risco cardiovascular

Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC

Efeito agudo dos exercícios de flexibilidade no desempenho de força máxima e resistência de força de membros inferiores e superiores

This study investigated the acute effect of static stretching exercises (SSE) on maximum strength (MS) and strength endurance (SE) performance in lower and upper limbs. Thirteen volunteers participated in the study and were submitted to MS and SE (70% 1RM) tests in the bench press and squat exercises with or without SSE. The paired T test showed that the SSE decreased MS in the squat (141.2 +/- 34.2 vs 132 +/- 34.9kg, p=0.007) and in the BP (77.5 +/- 21.7 vs 71.7 +/- 17.7kg p=0.04). Squat SE was not affected by SSE (16.2 +/- 5.7 vs 16.3 +/- 6.8 repetitions p=0.48). On the other hand, bench press SE decreased significantly after SSE (11.7 +/- 4.8 vs 9.9 +/- 5.1 repetitions p=0.008). Therefore, SSE impaired MS performance on upper and lower limbs but SE was affected only on upper limbs. This difference in SE may be related to the stretching exercises volume applied to the size of each muscle group.

Efeito agudo dos exercícios de flexibilidade no desempenho de força máxima e resistência de força de membros inferiores e superiores

Este estudo verificou o efeito agudo dos exercícios de flexibilidade estática (EFlex) no desempenho de força máxima (FM) e de resistência de força (RF) em membros inferiores e superiores. Treze voluntários participaram do estudo e foram submetidos a testes de FM e RF (70% 1RM) nos exercícios supino e agachamento precedidos ou não de EFlex. O teste T pareado foi utilizado para comparação das médias nas duas condições. Os EFlex diminuíram a FM no agachamento (141,2±34,2 vs 132±34,9kg; p=0,007) e no supino (77,5±21,7 vs 71,7±17,7kg p=0,04). A RF no agachamento não sofreu efeito dos EFlex (16,2±5,7 vs 16,3±6,8 repetições p=0,48), porém, no supino a RF apresentou diminuição significante (11,7±4,8 vs 9,9±5,1 repetições; p=0,008). Portanto, os EFlex reduziram a FM nos membros inferiores e superiores e a RF somente nos membros superiores. Essa diferença na RF estaria relacionada ao volume de exercícios de flexibilidade pelo tamanho do grupo muscular.

Metodología de trabajo integrado para la mejora de las capacidades físicas básicas de resistencia y velocidad en la preparación física de soldados profesionales del Ejército del Aire.

En el presente artículo se exponen los resultados del trabajo de preparación física específica realizado a soldados profesionales de la Base Aérea de Gando de Gran Canaria. Se realiza especial énfasis en la metodología de trabajo integrado desarrollada, la cual debía cumplir con criterios de optimización cronológicos dada la escasez de jornadas de trabajo específicas de preparación física. Se destaca, no obstante, la evolución positiva de aquellos/as soldados que desarrollaron todo el programa planteado en la planificación y el cumplimiento de los objetivos propuestos para la mejora de las capacidades físicas básicas de resistencia y velocidad.