Determination of the accuracy of laminated wax interocclusal wafers.

The variables that were selected as relevant factors in the production of inaccuracy in laminated wax interocclusal wafers were found to be highly significant statistically, mostly with confidence levels greater than 99%. These confidence levels, however, relate to experimental comparisons in the absence of any absolute standard. Clinical impact is difficult to assess without such standards. Laminated wax interocclusal wafers are highly technique sensitive. Variations in treatment and handling procedures are important factors in assessing their accuracy. Wafers that were both laminated and metalized were found to be the most accurate and dimensionally stable. However, exact reproductions of the original wax recordings are unlikely and were not achieved in this investigation.