Use of native macrophyte for grey water treatment applying alternative bed substrate in constructed wetlands.

Two vertical flow constructed wetland (VFCW 1 and VFCW 2) with native macrophyte (Mart.) were operated. In VFCW 1, the substrates used were ceramic brick, washed sand, seashells (), and ceramic brick and sand in VFCW 2.

Comparative effect of an essential oil mouthrinse on plaque, gingivitis and salivary Streptococcus mutans levels: a double blind randomized study.

An open, randomized, controlled study with two parallel treatment groups was done to evaluate the efficacy of a Lippia sidoides essential oil (EO) 1% mouthrinse compared with chlorhexidine 0.12% mouthrinse, applied two times daily for 1 week, in the treatment of dental plaque and gingivitis. Fifty-five patients were included in the study.