Welcome DentaQuest Members! Marketplace Members For more information regarding your Marketplace Dental Plan purchased through HealthCare.Gov, please visit our Marketplace member page. Sign in to your member portal to sign up for paperless billing or to pay your online. Log in here. Personal Dental Plan Members Our personal dental plans in Texas include coverage for preventive care, like regular check-ups, x-rays and cleanings, at no cost to you. Learn more about our plans or sign in to your member portal.