Dental braces: Straighten your smile with one or two arches of dental braces. Metallic: Choose metallic braces to help straighten your teeth, leaving you with a perfect smile. Ceramic: Or opt for ceramic braces which are less noticeable than metallic when on the tooth. Ortho London: Treatment carried out by a professional dentist at Ortho London, based on Harley Street. Perfect for: A non-invasive dental treatment perfect for those who's teeth need a little help straightening out! Valid: Fri and Sat, 10am-7pm.