Manufacturer’s recommendation for minimum connector size of all-ceramic FPDs
| Material | Trade name | Minimum connector size (for 3-unit FDP) | Recommendation | |
|---|---|---|---|---|
| Anterior | Posterior | |||
| Lithium disilicate | e.max CAD | 16 mm2 | Height > Width | |
| e.max Press | 16 mm2 | Up to premolar Pontic span ant (11 mm), canine-premolar (9 mm) |
||
| Amber Mill | - | Up to premolar Pontic span ant (11 mm), canine-premolar (9 mm) |
||
| 3Y-TZP | Katana ML&HT | 7 mm2 | 9 mm2 | |
| 3M Lava Plus | 7 mm2 | 9 mm2 | ||
| Cercon ht | 6 mm2 | 9 mm2 | ||
| 4Y-PSZ | Katana STML | 12 mm2 | 16 mm2 | Up to premolar |
| 5Y-PSZ | Katana UTML | 12 mm2 | 16 mm2 | Up to premolar |
| 3M Lava Esthetic | 12 mm2 | 14 mm2 | ||
| Cercon xt | 12 mm2 | 16 mm2 | Up to premolar | |
FDP, fixed dental prosthesis; 3Y-TZP, 3 mol% yttria stabilized tetragonal zirconia polycrystal; 4Y-PSZ, 4 mol% yttria partially stabilized zirconia; 5Y-PSZ, 5 mol% yttria partially stabilized zirconia.
