Methods Models for bilateral mandibular free-end edentulous (765 567) and parametric prosthetic models were combined to establish the three-dimensional finite element model libraries by means of HyperMesh 7.

Comparison of abutment and alveolar ridge stress distribution of two kinds of denture retained by attachment prosthodontic distal-extension absence;

Objective: To explore MK-1 attachment removable partial denture adaptation at distal-extended teeth missing cases.

Elastic resin and casting frame compound denture for double teeth ended free deletion;

The application of EAR attachment in the one-sided ended free deletion;

Objective To compare the masticatory efficiency with wax patterns artificial tooth titanium alloy casting removable partial dentures and finishied product artificial tooth titanium alloy casting RPD to find a more effective methods for the bilateral free end deletion.