| SNP | Single Nucleotide Polymorphism |
| IL1RN | Interleukin 1 Receptor |
| P2RX7 | Purinoreceptor P2 × 7 |
| EARR | External Apical Root Resorption |
| rRCR | Relative changes of Root-Crown Ratio |
| ATP | Adenosine Triphosphate |
| IL-1b | Interleukin 1 beta |
| OPG | Osteoprotegerin |
| RANKL | Receptor Activator Nuclear Factor Kappa Ligand |
| RANK | Receptor Activator Nuclear Factor Kappa |
| CLL | Chronic Lymphocytic Leukemia |
| CBCT | Cone Beam Computed Tomography |
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