ADA News reports that a free live webinar scheduled for noon Central time June 29 will cover common clauses in preferred provider organization contracts and how they can affect a dental practice. The webinar also will highlight the ADA's online resources on dental insurance. Webinar presenters are ADA Practice Institute Senior Vice President Dave Preble, D.D.S., J.D., and Dennis McHugh, manager of third-party payer advocacy with the ADA Center for Dental Benefits, Coding and Quality.