Table 1.
Distribution of specimens according to the histomorphological parameters and scores
| Histomorphological parameters | Scores | Groups | |||
|---|---|---|---|---|---|
| Endométhasone(n=20) | |||||
| G1 (n=10) short | G2 (n=10) beyond | ||||
| Closure of the apical foramen of the main root canal | 1=complete closure | -- | -- | ||
| 2=partial closure | 1 | -- | |||
| 3=deposition on lateral walls | 8 | a | --- | b | |
| 4=no closure | 1 | 10 | |||
| Closure of the apical opening of the accessory canals | 1=all accessory canals | -- | -- | ||
| 2=most accessory canals | 8 | 3 | |||
| 3=few accessory canals | 2 | a | 7 | a | |
| 4=no accessory canals | -- | -- | |||
| Apical cementum resorptions | 1=absent or totally repaired | 10 | 5 | ||
| 2=partially repaired | -- | -- | |||
| 3=non-repaired | -- | a | 5 | b | |
| 4=active resorption areas | -- | -- | |||
| Intensity of the inflammatory infiltrate** | 1=absent | -- | -- | ||
| 2=mild: <10 cells | 7 | 1 | |||
| 3=moderate: 11 to 25 cells | 1 | a | -- | b | |
| 4=severe: >25 cells | 2 | 9 | |||
| Presence of giant cells | 1=absent | 8 | 2 | ||
| 2=discrete: <3 cells | 2 | 6 | |||
| 3=moderate: 4 to 6 cells | -- | a | 2 | b | |
| 4=Intense: >6 cells | -- | -- | |||
| Apical PDL thickness*** | 1≤200 μm | 2 | 1 | ||
| 2=201 to 300 μm | 3 | 1 | |||
| 3=301 to 400 μm | 1 | a | -- | a | |
| 4>400 μm | 4 | 8 | |||
| Apical PDL organization*** | 1=well-organized PDL in all 4 parts of the apical third | 5 | 1 | ||
| 2=well-organized PDL in 3 parts | 5 | a | 7 | a | |
| 3=well-organized PDL in 1 or 2 parts | -- | 2 | |||
| 4=totally disorganized apical PDL | -- | -- | |||
| Group X group comparison | a | b | |||
*Different letters indicate statistically significant difference at 5% (Wilcoxon test).
**
Inflammatory infiltrate were evaluated in different areas (x400 magnification).
***
The apical root third was divided into 4 parts of similar dimensions. PDL=periodontal ligament