View clinical trials related to Fluoride Poisoning.
Filter by:Patients needing intensive care often require sedative drugs to reduce anxiety and agitation during ventilator care and invasive therapeutic and diagnostic procedures. At present there is no optimal sedative agent for these patients. The most commonly used sedative agents in intensive care units are midazolam and propofol. Both drugs have side effects of clinical importance. At present, a viable alternative to intravenous sedation is inhalatory sedation. Sevoflurane, as other inhaled anesthetic agents, is sedative in low doses. A new simplified method of administration of isoflurane or sevoflurane has been developed. The Anesthetic Conserving Device is a modified heat-moisture exchanger (HME) that permits direct infusion of sevoflurane to the airway, where it is vaporized in an evaporator rod in the device. However, the use of sevoflurane is limited to anesthesia and sedation lasting no more than 12 hours, since the possible renal problems posed by inorganic fluoride in prolonged operations remain the subject of controversy. The primary aim (and primary hypothesis) of the current trial is to determine whether sevoflurane can be administered as a sedative drug for more than 48 hours without clinically relevant physiopathological effects on kidney and liver function. Other end-points of the trial are to evaluate the quality of sedation of sevoflurane, in terms of sedation control, the rapidity and predictability of awakening, and the incidence of delirium in critical care patients.
Dental fluorosis is a clinical manifestation of chronic exposure to high intakes of fluoride during the tooth development. The present study is planned to evaluate the efficacy of Resin Infiltration technique in improving the esthetics of non-pitted fluorosis stains on permanent anterior teeth. Resin infiltration is a novel method that has shown its efficacy in improving the esthetics of various types of white spot lesions (WSLs), particularly post orthodontics WSLs, in in-situ and in-vivo studies. The Resin Infiltration technique is also known to stop the progression of caries in non cavitated lesions in both, smooth surface and interproximal lesions. Therefore, the following trial will be conducted to assess the esthetic improvement of fluorosed permanent anterior teeth after resin infiltration and compare it with standard bleaching procedure and a combination of bleaching and Resin infiltration therapy in children with fluorosed teeth.
Fluoride toothpaste has been associated not only with declining dental caries prevalence but also with an increase in dental fluorosis. In the balance of benefits/risks of fluoride toothpaste use, the purpose of this study is to evaluate the availability of fluoride concentration in the mouth (biofilm fuild), as an indicator of fluoride benefits (anticaries effect), and the fluoride concentration in urine, as an indicator of fluoride absorption from ingested toothpastes (with potential to cause dental fluorosis), in a sample of young Brazilian children using toothpaste formulations representative of those available and most used by this age-group.