SUMMARY Objective: To evaluate the influence of different protective barriers as a function of the photoactivation distances on the radiant exposure of several light-curing units (LCU). The influence of the protective barriers on the degree of conversion of an adhesive resin was also evaluated. Methods: Five LCUs were evaluated: Valo Cordless— used in standard mode (Ultradent, South Jordan, USA); Radii-cal—used in continuous mode (SDI, Bayswater, AU); Emitter D—used in continuous mode (Schuster, Santa Maria, BR); Bluephase N— used in high-intensity mode (Ivoclar Vivadent, Schaan, LI); and Rainbow Curing Light—used in continuous mode (Axdent, Guangdong, CN). For each LCU, radiant exposure was measured with a spectrometer (MARC Resin Calibrator) using three different protective barriers (low-density polyethylene, polyvinyl chloride, or Radii-cal barrier sleeves) and five photoactivation distances (0, 2, 5, 10, and 20 mm). The degree of conversion of an adhesive resin (Adper Scotchbond Multi-Purpose, 3M ESPE, St. Paul, USA) was measured through Fourier-transform infrared spectroscopy. The translucency parameter of protective barriers was measured with a spectrophotometer. For all statistical tests, a significance level of α = 0.05 was set. Results: For all LCUs tested, radiant exposure was found to be significantly influenced by both protective barriers and curing distance (p≤0.001). In general terms, all the protective barriers significantly decreased the radiant exposure. Radii-cal barrier sleeves were the protective barrier that most decreased the radiant exposure. Irrespective of the protective barrier used, none of the LCU equipment reached the required minimum radiant exposure of 16 J/cm2 at 10 mm of curing distance. The degree of conversion was not effected by either LCU or a protective barrier (p≥0.211). Conclusions: Protective barriers and photoactivation distance reduced the radiant exposure emitted by different LCUs.
Objetivo: identificar a satisfação profissional de cirurgiões-dentistas atuantes na atenção básica do Sistema Único de Saúde em um município do sul do Brasil, que foi pioneiro na implantação de diretrizes municipais de saúde bucal. Sujeitos e método: para a coleta dos dados, foram utilizados componentes descritivos a partir de dados secundários obtidos por meio de um questionário aplicado para todos os cirurgiões-dentistas atuantes no referido serviço. Resultados: no total, 46 profissionais foram incluídos na amostra, sendo que 82,5% estavam satisfeitos em seu trabalho e, desses, o reconhecimento dos usuários do serviço foi o fator que os cirurgiões-dentistas mais associaram à felicidade. Já os fatores mais relacionados à infelicidade no trabalho são as críticas ao salário e os usuários não colaboradores; 97,8% acreditavam que seu trabalho fazia diferença na comunidade em que estavam inseridos. Conclusão: este estudo sugere que estabelecer diretrizes no processo de trabalho pode ter um impacto positivo na prática e na satisfação dos profissionais, e essas estratégias podem ser utilizadas como amparo para planejamento em gestão de saúde bucal de forma sistematizada.
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