Table 3. Type and quality of coronal restoration in relation to AP.
| AP in relation to restoration | AP in relation to restoration quality | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Adequate quality | Inadequate quality | ||||||||
| Type/material of restoration | Total | AP, n (%) | Statistics | Total | AP, n (%) | Statistics | Total | AP, n (%) | Statistics |
| Amalgam | 1363 | 70 (5.1) | χ2=35.344 P<0.001* |
768 | 14 (1.8) | χ2=5.000 P=0.082† |
595 | 56 (9.4) | χ2=44.953 P<0.001* |
| Composite | 3551 | 170 (4.8) | 1912 | 40 (2.1) | 1639 | 130 (7.9) | |||
| Crown | 384 | 46 (12.0) ‡ | 239 | 10 (4.2) | 145 | 36 (24.8) ‡ | |||
| Total | 5298 | 286 (5.4) | 2919 | 64 (2.2) | 2379 | 222 (9.3) | |||
*Significant differences in frequency of teeth with AP according to type of coronal restoration.
†No significant difference in frequency of teeth with AP according to type of coronal restoration.
‡Significant differences vs both other types of coronal restoration