ScienceInterview: Healthy choppers for lifeTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience02/18/2016February 18, 2016Dentist Dr. Falk Schwendicke explains why gaps must be closed, if damage to other teeth is to be averted.https://p.dw.com/p/1G3QwAdvertisement