Mr. Josh gives a rave review of our staff and experience here at Stoll Orthodontics while he’s been undergoing his Invisalign treatment! We are so happy you and your son have loved your time with us! Thank you so much for the kind words!r. Gregory Stoll and our staff are highly experienced in providing comprehensive orthodontic treatment for children, teens and adults in the communities of  Thornton, Westminster, and Broomfield, Colorado along with other surrounding North Denver Metro communities.