Table 1.
Specimens grouping and coding with specifications
| Group | Code | Repair material |
|---|---|---|
| Control | HC | Intact heat-polymerized specimens |
| Butt joint | BTAP | Unreinforced autopolymerized acrylic resin |
| 2BTZ | 2.5 wt% nano-ZrO2-reinforced autopolymerized acrylic resin | |
| 5BTZ | 5 wt% nano-ZrO2-reinforced autopolymerized acrylic resin | |
| 7BTZ | 7.5 wt% nano-ZrO2-reinforced autopolymerized acrylic resin | |
| Bevel joint | BVAP | Unreinforced autopolymerized acrylic resin |
| 2BVZ | 2.5 wt% nano-ZrO2-reinforced autopolymerized acrylic resin | |
| 5BVZ | 5 wt% nano-ZrO2-reinforced autopolymerized acrylic resin | |
| 7BVZ | 7.5 wt% nano-ZrO2-reinforced autopolymerized acrylic resin |
Abbreviation: nano-ZrO2, zirconia nanoparticles.