| COX | cyclooxygenase |
| GCF | gingival crevicular fluid |
| MMP-13 | matrix metalloproteinase-13 |
| NSAID | non-steroidal anti-inflammatory drug |
| NSAIDs | non-steroidal anti-inflammatory drugs |
| OPG | osteoprotegerin |
| OTM | orthodontic tooth movement |
| PGs | prostaglandins |
| PGE2 | prostaglandin E2 |
| RANK-L | receptor activator of nuclear factor-kappa ligand |
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