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Mode of fracture distribution of the restorative groups according to Burke’s classification.
| Mode of Fracture | Group 1 Resin Composite |
Group 2 E verx |
Group 3 Ribbond |
Group 4 CAD/CAM |
|---|---|---|---|---|
| TYPE I (Minimal fracture or crack in the crown) |
0 | 2 | 4 | 0 |
| TYPE II (Less than half of the crown lost) |
0 | 9 | 4 | 3 |
| TYPE III (Half of the crown displaced or lost) |
5 | 4 | 5 | 7 |
| TYPE IV (More than half of the crown lost) |
6 | 0 | 2 | 5 |
| TYPE V (Severe fracture of the tooth and/or crown) |
7 | 0 | 0 | 0 |
