It has been reported that well-adapted and finished composite resins seem have no adverse effects on the periodontal margin. It has also been reported that the ageing of the composite resin restorations may produce gingival inflammation in subgingival areas. Fluoride-releasing resin materials with pre-reacted glass (PRG), called giomer, has been suggested to have good color matching, biocompatibility, smooth surface finish, fluoride release and fluoride recharge potential. It was reported in a randomized-controlled clinical trial that the use of CTG for treatment of root surfaces restored with giomer was effective over the 6-month period without any noxious effect on periodontal tissues.