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International Journal of Computerized Dentistry

Year 2006
Volume 9 , Issue 2

Pages: 137 - 142

Clinical reproducibility of GEDAS--Greifswald Digital Analyzing System for displaying occlusal contact patterns

Hutzen D, Rebau M, Kordass B.

The clinical display of the occlusal contact points is an essential part of the quality control of restorative work. Normally, articulating paper of different colors, occlusion foil or special waxes are used for this. A possible digital method has to date been to display the contact points and their distribution using a pressure sensor foil (T-Scan system). Occlusion bites in a silicone material are also possible alternatives. The Greifswald Digital Analyzing System (GEDAS) displays the strength, extent and localization of static contacts in intercuspation (IP) based on digitized silicone registrations. In 10 completely dentulous test persons (age 23 to 29 years), with 3 different examiners as well as 2 examination times spaced 14 days apart, the intraindividual reproducibility of the contact relations resulted in kappa values of 0.92, 0.96 and 0.99, and the interindividual reproducibility was between 0.90 and 1.00. Different versions of the GEDAS software are presented, including explanation and discussion of the possibilities of use.


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