SDI Ltd (ASX:SDI) is a developer, manufacturer and distributor of dental restorative materials and small dental equipment. With it’s suite of non-amalgam, significantly higher margin products - glass ionomers, composites and professional whitening - all experiencing growth, the company has guided to NPAT of $7.2-$7.8m in FY16 and is trading on 11x trailing earnings, and likely a single digit forward multiple with growth expected in FY17.