Recent development in dental materials had led to the fabrication of metal free fixed
prosthodontics to improve the mechanical and aesthetic properties to restore posterior teeth
depending on many techniques, therefore came the propose of this stud
y to compare the
marginal fit of Zirconia bridges made by CAD/CAM and Slip-Cast techniques.
30 Bridges were fabricated to restore missing first lower molar, they were divided
into two groups (15 CAD\CAM, 15 Slip-Cast). The marginal fit was evaluated by
measuring the thickness of light body silicone that made using Replica technique.
Depending on T-test, the mean marginal discrepancy for CAD/CAM groups was
13.92μ and 11.30μ for Slip-Cast techniques.
Therefore, it was concluded that the marginal fit of Slip-Cast techniques was
significantly better than CAD/CAM techniques.
