[An aid to decision making in the treatment of furcation diseases. Part 2: New classifications and reasoning methods]

Periodontal diseases combined with furcation defects are more difficult to treat; it's evidence. Furcation defects occur still very frequently. GTR treatments have shown some efficacy in those lesions, but, the success of those treatments is still uncertain and, therefore, indications are limited. Root amputations are, at this time, frequently chosen to treat furcation defects. The goal of this work was to evaluate the success rate of root amputations, to discuss the origin of the failures and to propose a new design for a better decision making.