PROSTHODONTICS - American College of Prosthodontists

188 Classification System jor Partial Edentu lism • McGarr), et alFigure 3. C lass III pati ent. This pa ti ent is Class III because the edentulous area(s) are located in both arches andmultiple locations within each arch. The abutment condition is substantially compromised due to the need forextracoronal restorations. There are teeth that are extruded and malpositioned. The occlusion is substantia llycompromised because reestablishment of the occlusal scheme is required without a change in the occlusal ve rticaldimension. (Jl) Frontal view, maximum intercuspation. (B) Right lateral vi ew, maximum intercuspati on. (C) Left lateralview, ma,imum intercuspation. (D) Occlusal view, maxill ary arch. (E) Occlusal view, mandibular arch. (F) Frontal vi ew,protrusive relati onship. (G) Right lateral view, right working movem ent. (H) Left lateral view, left working movement.2010 CDEL Re-recognition of the Specialty Report 167 of 279