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Grading assessment for screw position of each group.
| Grade | RAG (n = 32) | FHG (n = 50) | Total (n = 82) | P-value |
|---|---|---|---|---|
| A | 29 (90.6%) | 39 (78.0%) | 68 (82.9%) | 0.138 |
| B | 3 (9.4%) | 10 (20.0%) | 13 (15.9%) | 0.199 |
| A + B | 32 (100.0%) | 49 (98.0%) | 81 (98.8%) | 1.000 |
| C | 0 | 1 (2.0%) | 1 (1.2%) | 1.000 |
RAG = “Orthbot”-assisted group; FHG = free-hand technique group (conventional group).
No Grade D was evaluated in both the two groups.
