Table 3.
The frequency of failure modes in the studied groups
| Cement | Category 1 | Category 2 | Category 3 | Category 4 |
|---|---|---|---|---|
| PAN | 4 | 2 | 4 | None |
| UNH | 4 | 1 | 4 | 1 (in the tooth) |
| UNA | 3 | 2 | 3 | 2 (one in the crown and one in the tooth) |
PAN=Panavia F2.0, UNH=Hand-mixed Unicem, UNA= Auto-mix Unicem
Category 1=Adhesive failure with the cement remaining predominantly on the crown surface
Category 2=Adhesive failure with the cement remaining predominantly on the tooth surface
Category 3=Adhesive failure with the cement remaining equally on both surfaces (tooth and crown).
Category 4=Cohesive failure