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Fracture toughness of the plain acrylic denture base resin, high-impact denture base resin and its composite with acrylic coated class flakes. * Statistically significant compared to the plain resin.
| PMMA | HI | HI+GF1% | |
|---|---|---|---|
| FT MPa·m1/2 | 2.24 | 3.02 * | 3.43 |
| SD | 0.38 | 0.25 | 0.78 |
