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Volume 6 , Issue 4
Winter 1991

Pages 413-417

In Vivo Load Measurements on Osseointegrated Implants Supporting Fixed or Removable Prostheses: A Comparative Pilot Study

Torsten Jemt, DDS, PhD/Lennart Carlsson, Elect Eng, MSc/Anders Boss, Mech Eng, MSc/Lars Jrnus, Mech Eng, MSc

PMID: 1820310

Load was measured in vivo on a single terminal abutment cylinder by means of a strain gauge technique. The clinical measurements were made on one female patient (age 62) provided with six implants in the edentulous maxilla. A fixed prosthesis was tested initially, followed by an overdenture supported by a bar connected to the implants. The results indicated that a significant force could be introduced when connecting the framework. Furthermore, measurements showed that compression/tension forces were lower in the overdenture situation. However, the preliminary data also indicated relatively higher bending moments on the implant when the overdenture was loaded. (INT J ORAL MAXILLOFAC IMPLANTS 1991;6:413-417.)

Key words: bending moment, compression/tension force, load, overdenture

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