Table 4: The results of evaluations of restorations after six, 12 and 24 months using modified Ryges criteria.
| – |
6 Months |
12 Months |
24 Months |
| Bur |
Laser |
Bur |
Laser |
Bur |
Laser |
| N=26 |
N=26 |
N=25 |
N=25 |
N=20 |
N=20 |
| Characteristic |
Number (%) |
Number (%) |
Number (%) |
Number (%) |
Number (%) |
Number (%) |
| Retention: |
| Alpha |
26(100) |
26(100) |
25(100) |
25(100) |
20(100) |
20(100) |
| Marginal Integrity: |
| Alpha |
24(92) |
26(100) |
23(92) |
24(96) |
19(95) |
20(100) |
| Bravo |
2(8) |
0 |
1(4) |
1(4) |
1(5) |
0 |
| Charlie |
0 |
0 |
1(4) |
0 |
0 |
0 |
| Marginal Discoloration: |
| Alpha |
25(96) |
26(100) |
24(96) |
25(100) |
20(100) |
20(100) |
| Bravo |
1(4) |
0 |
1(4) |
0 |
0 |
0 |
| Secondary Caries: |
| Alpha |
24(92) |
26(100) |
23(92) |
22(88) |
20(100) |
18(90) |
| Bravo |
2(8) |
0 |
0 |
1(4) |
0 |
0 |
| Charlie |
0 |
0 |
2(8) |
2(8) |
0 |
2(10) |