Non-splitted mandibular full arch prosthesis with modified peek material – a case report

The preferred approach for mandibular full arch prosthesis is placement of implants between and beyond the mental foramen for better stress distribution and elimination of cantilevers. The rigid framework over these implants is splitted to overcome the action of mandibular flexion. However, in situations of unavailability of bone in posterior mandible, the traditional branemark approach of placing 4 to 6 implants between mental foramen is used. In such cases, when a continuous rigid cobalt chrome or zirconia framework is used, the increased cantilever lengths and mandibular flexion causes stress at bone implant interface. To avoid this, the framework should be selected of a material which has modulus of elasticity close to that of bone. A new upcoming modified PEEK material, with combination of rigidity and elasticity close to human bone, is a more natural material for implant prosthesis.