SmileDirectClub, which makes clear plastic dental aligners, is now offering oral care products directly to consumers. The line, including electric toothbrushes, tooth whitening agents, toothpaste, flossers, and ultrasonic UV machines for sanitizing dental gear, will be available at Walmart locations nationwide. SmileDirectClub now retailing at Walmart SmileDirectClub originally popularized its products among dentists and orthodontists, who offered clear aligners as an alternative to traditional braces. The company expanded its line of products and services to…