Maybe can use the technology of alternating impedance spectroscopy such as similar principle as CarieScanPRO in periodontal probe to detect patients' gingival crevicular fluid (GCF) and bone...
If gingiva stared interrupted inflammation and its gingival crevicular fluid (GCF) had high dose of M∅ which has potent derivate to osteoclast, maybe it's the earliest sign of periodontal bone loss although bone loss (demineralization) is too tiny to be checked by X-ray film.