There are two ride-hailing apps that dominate the scene: Uber and Lyft. Both have been around for the last several years, with Uber starting around 2009 and Lyft launching in 2012. Both have apps for Android and iOS, while only Uber has an app for Windows Phone as well.
Medicine/Medical. the preventing of disease. the prevention of a specific disease, as by studying the biological behavior, transmission, etc., of its causative agent and applying a series of measures against it. prophylactic treatment, as the cleaning of the teeth by a dentist or dental hygienist.
education and prophylactic care to patients (Motley 1983). Since that time, the focus of. dental hygiene services has been, and remains to be, the oral prophylaxis Included in this. area are therapeutic scaling and root planing, and periodontal maintenance care. There are a number of existing definitions for oral prophylaxis (see Appendix A).