Calculus Flashcards
Subgingival calculus is more or less homogenous ve Supragingival
More homogenous, smooth so harder to detect
Subgingival calculus mineral content
58% vs 37% Supragingival
How long does biofilm take to mineralise Akcali and Lang Perio 2000 2018
Appears to be completed in 12 days, half of it in the first 2 days
Dental calculus loses microbial virulence once mineralisation occurs, but why must it be removed
Retains significant levels of endotoxins that may influence tissue damage
Always harbours living non mineralised biofilm on it posing constant bacterial challenge
Retentive site for bacterial products
Root debridement removes
Cementum/surface dentin that is rough impregnated with calculus, contaminated with toxins/microorganisms