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Comparison of prognosis between the two groups of patients
| Prognosis (Grade A) | Control group (n=42) | Observation group (n=42) | χ2 | P |
|---|---|---|---|---|
| Integrity | 17 (40.48%) | 26 (61.90%) | 3.859 | 0.049 |
| Edge tightness | 18 (42.86%) | 29 (69.05%) | 5.844 | 0.015 |
| Gum health | 17 (40.48%) | 28 (66.67%) | 5.791 | 0.016 |
| Secondary caries | 23 (54.76%) | 34 (80.95%) | 6.604 | 0.010 |
| Food impaction | 25 (59.52%) | 35 (83.33%) | 5.833 | 0.015 |
