Figure 1–3. Typical case of the combination syndrome patient with a complete edentulous maxilla opposed by the anterior mandibular teeth and a distal-extension removable partial denture: a severe resorption of the anterior maxillary alveolar ridge, super-eruption of unopposed 6 mandibular anterior teeth, and overgrowth of maxillary tuberosities. Combination syndrome classification: Class I, Mod. 1 (I-1).