explorers Flashcards
what is the formation time of calculus?
10 - 20 days
what do heavy calculus formers have?
higher salivary concentrations of calcium and phosphate
what do light calculus formers have?
higher levels of pyrophosphate (known inhibitor of calcification)
green stain
bacteria and fungi from poor oral hygiene, should not scale
black stain
iron in saliva or any type of iron products used in the mouth, should be scaled
black line stain
thin band slightly coronal to the gingival associated with iron, scale and polish
orange stain
bacteria from poor oral hygiene, scale and polish
brown stain
tobacco, scale and polish
gray/brown-green stain
marijuana, scale and polish
yellow stain
oral biofilm
blue green stain
mercury and lead dust, scale and polish
red black stain
chewing betel nut, betel leaf, scale and polish
what is tactile sensitivity
sensation that passes through the instrumentation to the fingers and hand to the brain for registration and action
function shank
first bend in the shank up to the working end
lower or terminal shank
needs to be parallel to the long axis of the tooth
working end
usually 1-2mm needs to be flush with the root or tooth surface
oblique #5 explorer and limitations
used to detect calculus in deep anterior pockets or b and l, due to straight terminal shank it is more difficult to adapt to the posterior teeth
cowhorn or pigtail explorer and limitations
interproximal caries detection, calc detection, idea with in smaller pockets, caries detection, it has a short and broadly curved terminal shank so it is not suitable for deep pockets
odu 11/12 explorer
most effective design, interproximal decalcification detection, best for deep pockets
shepherds hook explorer and limitations
margins of restorations, light pressure occlusal caries, most rigid shank decreasing tactile sensitivity
what are the different types of strokes
vertical, horizontal, oblique, circumferential
