true or false. More than one mode of attachment can occur on any one tooth in any one area
true
What are the three general modes of calculus attachment?
acquired pellicle
minute irregularities in tooth surface by mechanical locking into undercuts
direct contact between calcified intercellular matrix and the tooth surface
What is a thin, acellular, homogenous layer positioned between the calculus and the tooth surface?
the pellicle
Calculus attachment to what is superficial because no interlocking or penetration occurs?
pellicle
What type of attachment occurs most frequently on enamel and newly scaled and planed root surfaces?
pellicle
calculus may be removed readily because of the smooth attachment of what?
pellicle
cracks, lamellae, and carious defects can all cause what type of calculus attachment?
attachment to minute irregularities in the tooth surface by mechanical locking into undercuts
tiny spaces left at previous locations of sharpey's fibers, resorption lacunae, scaling frooves, and cemental tears are what type of calc attachment?
cemental irregularities
In what attachment is is difficult to tell that all the calculus has been removed?
minute irregularites by mechanical locking into undercuts
What type of calculus attachment includes interlocking of inorganic crystals of the tooth with the mineralizing dental biobilm, and distinction between calc and cementum is difficult during root debridement?
attachment by direct contact between calcified intercellular matrix and the tooth surface
Calculus has long been considered to have an important role in the development, promotion, and recurrence of what type of infections?
gingival
periodontal
Calculus is mineralized biofilm. The biofilm bacteria _____________ is mineralized first
next to the tooth surface
What are 2 ways that supragingival biofilm is examined?
direct examination
compressed air
What are 2 ways that supragingival calculus is examined using direct examination?
directly or indirectly with a mouth mirror
What are 5 ways that subgingival calculus is examined?
visual
gingival tissue color change
tactile examination
radiographic examination
perioscopy
Using transillumination, a dark, opaque, shadowlike area seen on a proximal tooth surface may be what? And when is the enamel transluscent?
calculus
without calculus, stain, or thick soft deposit
What might darkness reflected through a thin margin suggest?
the presence of subgingival calculus
Using the probe or explorer to feel calculus is using what type of calc exam?
tactile
true or false. Radiographic examination is useful for calculus detection.
FALSE! It is not useful because of highly mineralized tooth structure superimposed over calc deposits
What is a good way to detect burnished calc?
perioscopy
Calculus control dentrifrices currently available aim to inhibit what?
calculus crystal growth
true or false. Calc control dentrifrices do not have an effect on existing calculus deposits and are offered as a preventive measure against the formation of new supragingival calc
true
agents including pyrophosphates, zinc citrate or zinc chloride, and triclosan would be used in what?
