Clinical Trial: Evaluation of Treatment With Fixture Microthread™ in Patients Missing All Teeth in the Upper Jaw, When Using One-Stage Surgery

Study Status: Terminated
Recruit Status: Terminated
Study Type: Interventional

Official Title: An Open, Prospective, Multicenter Study to Evaluate Treatment of Edentulous Upper Jaws With Fixed Detachable Bridges Retained by Astra Tech Dental Implants, Fixture Micro-

Brief Summary:

The primary objective of the study is to evaluate the long-term survival rate of implants and prostheses when treating totally edentulous upper jaws with Fixture MicroThread (Micro-Macro) using a one-stage surgical procedure.

Clinical study recruitment was stopped in year 2000 due to a decision to modify the product under study. This was a result of feedback regarding the subjective feeling during the installation procedure. There were no safety concerns w/r to the study products. Patients already included and treated in the study were monitored for the full duration of the study in accordance with the clinical study protocol.

Detailed Summary:
Sponsor: Dentsply Sirona Implants

Current Primary Outcome: Implant survival [ Time Frame: Continuously during 5,5 years after implant placement ]

Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Dentsply Sirona Implants

Dates:
Date Received: September 5, 2008
Date Started: January 1999
Date Completion:
Last Updated: September 5, 2008
Last Verified: September 2008