Persistent mouth ulcers can be treated by rinsing warm salt water or visiting the dentist. Cure persistent mouth ulcers with tips from a licensed dental assistant in this free video series on dental health and oral hygiene. Expert: Michelle McPhail Contact: www.MySolutionz.com Bio: Michelle McPhail is a dental tech and the office coordinator at one of the most popular cosmetic dentistry centers in the Tampa Bay area. Filmmaker: Christopher Rokosz