“…The first looked at the timing of pulpal disease after restoration and its association with the material used for restoration. 256 The data were drawn from the Oral Health Center of Western Australia from 2009 through 2013 and included restoration type, restored surfaces, tooth type, and dates of restoration and subsequent endodontic treatment or extraction. Three hundred thirty teeth met criteria requiring endodontic or extraction treatment, of which 26% were composite resin restorations, 24% amalgams, 36% glass ionomers, and 14% crowns.…”