Dr Ricardo Kern Complex case involving many different surgeries and steps to achieve the balance between white and pink aesthetics. Araújo MG, Sukekava F, Wennström JL, Lindhe J. Ridge alterations following implant placement in fresh extraction sockets: An experimental study in the dog.J Clin Periodontol 2005;32:645–652. Jung RE, Sailer I, Hämmerle CH, Attin T, Schmidlin P. In vitro color changes of soft tissues caused by restorative materials. Int J Periodontics Restorative Dent 2007; 27:251–257. Rompen E, Raepsaet N, Domken O, Touati…