Calculus Flashcards
What is the objective in Nonsurgical Periodontal Therapy?
To prepare the teeth, through calculus removal, to have biologically acceptable smooth surfaces
What is mineralized dental biofilm that is filled with crystals of various calcium phosphates. Covered with a layer of nonmineralized dental biofilm containing viable, active bacteria.
Dental Calculus
The hard, tenacious mass of dental calculus can form on what?
Clinical crowns of natural teeth, dental implants, dentures, and other dental prostheses.
A term indicating that the source of the minerals is the blood serum? It’s black.
Serumal
Calculus forms in three basic steps?
Pellicle formation
Biofilm formation
mineralization
What is the most highly mineralized tissue in the body?
what is the second?
Dental enamel
Calculus
The lines between the layers of calculus can be called?
Incremental lines
What is used to detect calculus?
Direct examination: 11/12 explorer, light, mirror and Compressed Air
Most frequent sites for supragingival calculus?
Lingual surfaces of Mand. Anterior teeth
Facial surfaces of Max. 1st and 2nd Molars (opening ducts of the salivary glands.
Location for Subgingival Calculus?
Clinical crown apical to the margin of the gingiva and extending nearly to the clinical attachment on the root surfaces. May be generalized or localized on single teeth or a group of teeth.
Composition of Calculus?
70% and 90% inorganic components
the rest is organic components; water
T/F Heavy Calculus formers have HIGHER salivary levels of CALCIUM and PHOSPHORUS than do light calculus formers. Light Calculus formers have HIGHER levels of PAROTID PYROPHOSPHATE.
True
An inhibitor of calcification and is used in anticalculus dentifrices?
Pyrophosphate
There are how many modes of Calculus Attachment?
3
The source of elements for Supragingival Calculus is?
Saliva