The combination (Kelley’s) syndrome refers to the destructive changes associated with the long term wear of a mandibular distal extension removable partial denture opposing a complete upper denture. Which of the following clinical findings is NOT normally characteristic of this syndrome?

Down growth of the maxillary tuberosities

Reduction in morphologic face height

Advanced anterior maxillary ridge resorption

Advanced alveolar bone resorption under the posterior partial denture base areas