Mandibular endosseous implant interventions 383

Fig. 9-159. Spiral-post implants in an edentulous mandible. (From Chercheve, R.: Les implants endo-osseoux, Paris, 1962, Librairie Maloine.)

Fig. 9-160. Sometimes the protruding implant shafts are splinted together with gold copings connected to each other by a dolder connecting bar.

Bites and a rubber base impression were taken, making sure to prevent the impression material from seeping into the space between the bar and the fibromucosa at the crest of the ridge.

A removable denture may be fabricated with either an all-acrylic frictional grip, internal clip bar attachment (Fig. 9-164), or a Gerber or Ceka type attachment. After processing and adjustment, the denture was slipped over the bar. Radiographs show

Fig. 9-161. Other times the implants are connected to each other with a vertical connecting bar.

Connecting
bar

Fig. 9-162. The removable denture is attached to the dolder bar with just a closely adapted acrylic frictional grip. (From Chercheve, R.: Les implants endo-osseoux, Paris, 1962, Librairie Maloine.)

Fig. 9-163. The linked copings cemented over the implants. (From Chercheve, R.: Les implants endo-osseoux, Paris, 1962, Librairie Maloine.)