Maxillary endosseous implant interventions 403

prostheses were cemented with hard cement (Fig. 10-64) . Postoperative radiographs were taken of each area (Fig. 10-65).

Case 8

Bilateral restorations using a scalloped template with precision attachments and triplants

When the long-term fate of a triplant in a posterior edentulous area is dubious for any reason, a tern-plate with precision attachments may be used. To facilitate removal, the template bears on its most

anterior portion a male attachment that fits into a female attachment on the most distal portion of the restoration spanning the prepared abutment teeth. This type of template may be used for bilateral restorations, in which case a template is made for each side of the jaw, or for a unilateral restoration. The following case illustrates one of the reasons why such a template procedure may prove handy.

The patient, a 58-year-old woman, was very suspicious about the longevity of implants and wanted assurance that there would not be much future work

Fig. 10-66. Female precision attachments (arrows) are soldered to the distoproximal surfaces of the last abutment castings on each side of the arch.

Fig. 10-68. The prefabricated porcelain-baked-to-metal pros-thesis includes the splinted porcelain-to-metal anterior portion, two posterior scalloped templates with male precision attachments that attach them to the anterior quadrant, and two porcelain-baked-to-metal superstructures.

Fig. 10-67. The soldered copings are fitted over the pre-pared teeth.

Fig. 10-69. The posterior superstructures are fitted over the templates.