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Marginal adaptation of the Concept inlay system.

PURPOSE
To evaluate the fit of the Concept inlay system in three clinically relevant cavity preparations (an occlusal, MO and MOD).


MATERIALS AND METHODS
The processed inlays were adjusted as needed and seated on master dies. The greatest marginal discrepancy occurring along each margin was recorded and evaluated.


RESULTS
The majority of the margins exhibited gaps in the range of 20-45 microns (statistically insignificant) with the exception of the distal margin of the MO which averaged approximately 80 microns and the buccal and lingual margins of the MOD which were approximately 70 microns (both statistically larger than the 20-45 microns range). This heat and pressure cured composite inlay system is capable of producing fairly closely fitting restorations.