Assertion: cementum | /r/HasProperty | impregnated with toxin
Facets:
Source sentences:
text: Scaling and root planing, also known as conventional periodontal therapy, non-surgical periodontal therapy, or deep cleaning, is a procedure involving removal of dental plaque and calculus (scaling or debridement) and then smoothing, or planing, of the (exposed) surfaces of the roots, removing cementum or dentine that is impregnated with calculus, toxins, or microorganisms, the etiologic agents that cause inflammation.