A cast clasp-retained (bugel) removable partial denture is being made for a 58-yearold patient. Impressions are made, centric jaw relation is determined, plaster casts are obtained. What is the next stage?

Answer options

1. Duplication of the working model
2. Marking the border seal
3. Transfer of denture frame pattern to the working model
4. Examination of the working model with a parallelometer
5. Wax modelling of the denture frame