This complementary article was prepared by Bernd Stadlinger, Søren Jepsen and Hendrik Terheyden and presents an overview of the content of the 6th volume of the "Cell-to-Cell Communication" series. The 6th volume of the series entitled "Peri-implantitis and its prevention" was prepared by a collaborative team of authors - Tord Berglundh, Søren Jepsen, Bernd Stadlinger, Hendrik Terheyden - and an advisory board. This computer-animated scientific film was launched at the EuroPerio meeting in Amsterdam in June 2018, providing a novel way to visualize the complex processes of peri-implant inflammation. It visualizes the biological background of the development and progression of peri-implantitis and highlights the importance of the microbiome and host immune defense. In addition, a perspective article has recently been published in the leading implant journal Clinical Oral Implants Research (Berglundh et. al. 2019). It is hoped that this complementary article will bring the film to the attention of the many ITI Fellows and Members who enjoy reading Forum Implantologicum. Please look for the Q reader at the end of the article and enjoy this captivating film.