Retrograde Periimplantitis – Risikofaktoren und Behandlungsvorschläge.
Quirynen M, Vogels R, Alsaadi G, Naert I, Jacobs R, van Steenberghe D.
Predisposing conditions for retrograde peri-implantitis, and treatment suggestions.
Clin Oral Implants Res. 2005 Oct; 16(5): 599-608.