This fact is from RPD — Kennedy Classification & Design in Prosthodontics. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
Class I = bilateral posterior edentulous
Class II = unilateral posterior edentulous
Class III = unilateral bounded posterior edentulous
Class IV = bilateral anterior crossing midline NO modification allowed
Applegate rules modify Kennedy classification
Most common Kennedy class = Class III.