When measuring for furcation involvement, which of the following classes is described by the probe passing completely through the furcation, but the furcation is not clinically visible?

Question

Quizplus · Accepted Answer

Class III can enter furcation all the way through, but is still covered by soft tissue. Concavity of furcation can be detected with an explorer or probe, but cannot be entered. Class III can enter furcation from one aspect with a probe or explorer but cannot penetrate through to opposite side. Class III can enter furcation all the way through, but is not covered by soft tissue.

When Measuring for Furcation Involvement, Which of the Following Classes