Table 4. Type and quality of coronal restoration in relation to AP and tooth type.
| AP in relation to type/material of restoration | AP in relation to restoration quality | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Adequate quality | Inadequate quality | ||||||||
| Total | AP, n (%) | Statistics | Total | AP, n (%) | Statistics | Total | AP, n (%) | Statistics | |
| Incisors and canines | |||||||||
| Amalgam | 5 | 0 (0) | χ2=4.777 P=0.092† |
5 | 0 (0) | χ2=4.003 P=0.135† |
0 | 0 (0) | χ2=23.388 P<0.001* |
| Composite | 1024 | 45 (4.4) | 484 | 15 (3.1) | 540 | 30 (5.6) | |||
| Crown | 186 | 15 (8.1) | 121 | 0 (0) | 65 | 15 (23.1) | |||
| Total | 1215 | 60 (4.9) | 610 | 15 (2.5) | 605 | 45 (7.4) | |||
| Premolars | |||||||||
| Amalgam | 323 | 14 (4.3) | χ2=12.872 P=0.002* |
213 | 4 (1.9) | χ2=19.786 P<0.001* |
110 | 10 (9.1) | χ2=2.046 P=0.360† |
| Composite | 1179 | 70 (5.9) | 674 | 20 (3.0) | 505 | 50 (9.9) | |||
| Crown | 119 | 16 (13.4) ‡ | 84 | 10 (11.9) ‡ | 35 | 6 (17.1) | |||
| Total | 1621 | 100 (6.2) | 971 | 34 (3.5) | 650 | 66 (10.2) | |||
| Molars | |||||||||
| Amalgam | 1035 | 56 (5.4) | χ2=34.468 P<0.001* |
550 | 10 (1.8) | χ2=4.223 P=0.121† |
485 | 46 (9.5) | χ2=29.324 P<0.001* |
| Composite | 1348 | 55 (4.1) | 745 | 5 (0.7) | 594 | 50 (8.4) | |||
| Crown | 79 | 15 (19.0) ‡ | 34 | 0 (0) | 45 | 15 (33.3) ‡ | |||
| Total | 2462 | 126 (5.1) | 1338 | 15 (1.1) | 1124 | 111 (9.9) | |||
*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