Blank L W, Caffesse R G, Charbeneau G T
J Prosthet Dent. 1979 Dec;42(6):626-32. doi: 10.1016/0022-3913(79)90192-6.
Within the limits of this study, the following conclusions are made: 1. Well-finished and contoured composite resin restorations do not adversely affect the health of the gingiva. 2. The gingiva exhibits less inflammatory response to a well-finished and contoured composite resin restoration than to an open carious lesion. 3. The gingival inflammatory changes which do occur are independent of the presence of well-finished and contoured composite resin restorations. 4. Observation over an extended period of time is necessary to determine if composite resin restorations ultimately become gingival irritants.