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Kay dental aesthetics (%)
| Experimental (n=40) | Reference (n=40) | χ2 | P | ||
|---|---|---|---|---|---|
| Preoperatively | I | 4 (10.00) | 5 (12.50) | 0.317 | 0.957 |
| II | 15 (37.50) | 14 (35.00) | |||
| III | 17 (42.50) | 18 (45.00) | |||
| IV | 4 (10.00) | 3 (7.50) | |||
| Postoperatively | I | 15 (37.50) | 9 (22.50) | 16.56 | <0.001 |
| II | 22 (55.00) | 12 (30.00) | |||
| III | 3 (7.50) | 14 (35.00) | |||
| IV | 0 (0.00) | 5 (12.50) | |||
