NuSmile Signature Crowns are the tried and true restoration for primary teeth affected by eary childhood caries. They provide children with a healthy, natural smile and are less technique-sensitive than composite strip crowns, all while remaining affordably priced. NuSmile Signature Crowns are the most widely used esthetic crowns by a 2 to 1 margin, with more than 7.5 million restorations performed over the past 30+ years.