noun
periodontitis; pyorrhea
Medical term for advanced gum disease with bone loss. In everyday conversation, 歯周病 (ししゅうびょう) is more common.
歯槽膿漏が進行すると、歯が抜けることがあります。
If periodontitis progresses, teeth may fall out.
歯周病 is the broader, more common term for gum disease, while 歯槽膿漏 specifically refers to advanced periodontitis with pus and bone loss.
Compound of 歯槽 (dental alveolus) + 膿漏 (pyorrhea). The exact historical derivation is uncertain, but the spelling is conventionally associated with the medical condition.