Dr. Pang my son is preparing to get Invisalign braces in a month or so. A dental hygenist friend of mine is concerned that it can cause permanent damage to the tooth roots in teens by moving them too quickly. Should I reconsider?
LK

Dr. Pang: The most qualified person to evaluate your son's health is a dentist/doctor. If you are concerned please seek a 2nd opinion from someon qualified to give you an evaluation. You hygienist friend is partially correct though, in that permanent root damage can occur as a complication -- regardless of the technique used. Invisalign or not. In fact, root damage can occur for other reasons such as banging a tooth with a soccer ball. Root resorption often is noticed years later, and can be triggered by a traumatic accident to the tooth.