Which Kennedy Classification corresponds to unilateral unbounded distal extension?

Which Kennedy Classification corresponds to unilateral unbounded distal extension?

• A. Kennedy Class I
• B. Kennedy Class II
• C. Kennedy Class III
• D. Kennedy Class IV

Answer: (B)

Assessing Kennedy classifications, we describe edentulous spaces by side (unilateral vs bilateral) and whether the space is bounded by teeth on both ends. A unilateral posterior gap that extends to the end of the arch without a distal stopping tooth is an unbounded distal extension. This matches Kennedy Class II. The other patterns don’t fit: bilateral posterior gaps are Class I; a single gap with teeth on both sides is Class III; a front-space crossing the midline is Class IV. So unilateral unbounded distal extension corresponds to Kennedy Class II, guiding denture design to address the unilateral distal extension and its biomechanical implications.

Assessing Kennedy classifications, we describe edentulous spaces by side (unilateral vs bilateral) and whether the space is bounded by teeth on both ends. A unilateral posterior gap that extends to the end of the arch without a distal stopping tooth is an unbounded distal extension. This matches Kennedy Class II. The other patterns don’t fit: bilateral posterior gaps are Class I; a single gap with teeth on both sides is Class III; a front-space crossing the midline is Class IV. So unilateral unbounded distal extension corresponds to Kennedy Class II, guiding denture design to address the unilateral distal extension and its biomechanical implications.