[History of fluoridation policies as a strategy by the Brazilian Legislative Branch to fight dental caries, 1963 to 2019].

The aim of this study was to analyze legislative proceedings on fluoridation policies in Brazil from 1963 to 2019. The theoretical reference was Pierre Bourdieu. A document search was performed on legislative proceedings that address the theme of fluoridation in Brazil as a public health measure and the discussions in the National Congress.

Assessment of the use of LED phototherapy on bone defects grafted with hydroxyapatite on rats with iron-deficiency anemia and nonanemic: a Raman spectroscopy analysis.

This study aimed to assess bone repair in defects grafted or not with hydroxyapatite (HA) on healthy and iron-deficiency anemia (IDA) rats submitted or not to LED phototherapy (LED-PT) by Raman spectroscopy. The animals were divided in eight groups with five rats each: Clot; Clot + LED; IDA + Clot; IDA + LED; Graft; Graft + LED; IDA + Graft; and IDA + Graft + LED. When appropriated, irradiation with IR LED (λ850 ± 10 nm, 150 mW, CW, Φ = 0.