A comparative study on the distribution of marginal excess cement of implant-supported vented and non-vented zirconia crowns before and after cleaning procedures.

Crown venting significantly reduced the area and depth of the marginal excess cement in vitro. Cleaning procedure with a dental explorer significantly reduced the area of marginal excess cement in vitro, however, the excess cement can be pushed deeper in the non-vented group. This article is protected by copyright. All rights reserved.