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Marginal discrepancy in cemented casting restorations(Literature Review)

Marginal discrepancy, is one of the problems with cemented casting restorations. Determining (evaluating) the amount of this gap is complex. However, minimal dimensions for these gaps have not been determined. It has been reported that a clinical acceptable marginal gap can be from 25y to 120 Ft. Most researchs believe that a 100p marginal discrepancy is clinically acceptable but it should diminished to 25 p (cement film thickness) as it is possible.