Table 2. Histometric analysis showing mean and SD of bone resorption in the distal root and furcation (A.1, A.2, B.1, B.2, C.1, C.2). Number of animals per group that presented osteonecrosis in the furca and/or distal root (A.3, B.3, C.3).
| Groups | Variables | Bone resorption | P value | |
|---|---|---|---|---|
| A | A.1 | DR | 0.620±0.096 vs. 0.490±0.128 | 0.005a) |
| A.2 | Furca | 1.276±0.689 vs. 0.836±0.376 | 0.046b) | |
| A.3 | Osteonecrosis | 3/6 vs. 1/6 | - | |
| B | B.1 | DR | 0.323±0.143 vs. 0.608±0.301 | <0.001a) |
| B.2 | Furca | 0.429±0.157 vs. 0.492±0.337 | 0.516b) | |
| B.3 | Osteonecrosis | 1/6 vs. 0/6 | - | |
| C | C.1 | DR | 0.408±0.058 vs. 0.589±0.159 | 0.001a) |
| C.2 | Furca | 0.363±0.179 vs. 0.798±0.215 | <0.001a) | |
| C.3 | Osteonecrosis | 0/6 vs. 1/6 | - | |
Data are shown as mean±SD.
Values in mm, except for A.3, B.3, and C.3. In A.3, B.3, and C.3, number of animals with osteonecrosis/total number of animals in group.
Groups are represented as below: A, ZOL/Lig30 vs. Con/Lig30; B, ZOL/Lig15 vs. Con/Lig15; C, Lig/ZOL vs. Lig/Con.
DR: distal root, SD: standard deviation, ZOL: zoledronic acid.
a)Student's t-test; b)Mann-Whitney test.