What are the objectives of furcation therapy:: (A) Facilitate maintenance., (B) Prevent further attachment loss., (C) Obliterate the furcation defects as a periodontal maintenance problem., (D) All of the above.
Answer is D. The objectives of furcation therapy are to

Facilitate maintenance
Prevent further attachment loss and
Obliterate the furcation defects as a periodontal maintenance problem. The selection of therapeutic mode varies with the class of furcation involvement, the extent and configuration of bone loss, and other anatomic factors.