Risk Factors and Surgical Refinements of Postresective Mandibular Reconstruction: A Retrospective Study

Figure 5

Schematic representation of Eichner’s index. Shaded teeth indicate occlusal contacts between natural teeth or fixed prostheses in the premolar and molar regions that constitute occlusal support zones (OSZs). Category A contains 4 OSZs. A1: complete dentition. A2: missing teeth in one arch. A3: missing teeth in both arches. Category B contains 1–3 OSZs or contacts in the anterior area only. B1: 3 OSZs. B2: 2 OSZs. B3: 1 OSZ. B4: contacts in the anterior area only. Category C does not have any OSZs. C1: teeth in both arches. C2: teeth in one arch. C3: edentulous.