B

8 Theories and techniques of oral implantology

Fig. 1-19. A, A four-unit completed prosthesis is fabricated from the master stone model. The model contains duplicate implant shafts as guides. B, Another view of the prosthesis showing the manner in which the prosthesis will fit over the implant shafts and the prepared abutment teeth.

A

Fig. 1-21. A, Bridge in position. B, Bridge cemented into position showing centric occlusion.

Fig. 1-22. The final radiograph reveals the completed pros-thesis cemented over the implants and the natural tooth abutments.

Fig. 1-20. Bridge prior to cementation.