Lecture 5 Flashcards
Translucent Zone
Zone 1
innermoststrongest churva
Zone 1
Dark Zone
Zone 2
positive zone formed by demineralization
Zone 2
Body of the Lesion
Zone 3
area of greatest demineralization
Zone 3
Surface Zone
Zone 4
outermost
Zone 4
appears relatively unaffected
Zone 4
the greater resistance of the surface layer may be due to a greater degree of mineralization or greater concentration of fluoride in the ____.
Surface Enamel (Zone 4)
means reversible
Incipient
your carious lesions will start as a white spot, but it has no break/cavity yet. So your intact surface zone, this is ____ early enamel caries
incipient
Then you have body of the lesion, there is a little demineralization going on even though your surface is still intact that is why what you see clinically is a ____.
white spot
you have your dark zone and after the dark zone is your ____.
translucent zone (innermost zone)
is the inner recrystallization zone
Zone 1
this is hypercalcified than normal enamel. So it is even stronger than your normal enamel
Zone 1
is also described as the positive zone and this is formed as a result of demineralization
Zone 2
is the area of greatest demineralization so you already have demineralization going in here even though your surface is still intact.
Zone 3
It is still reversible, meaning if this is still happening in the tooth
Incipient
it can still be ____, meaning if you have a white spot, you don’t need to drill it or make cavity prep right away.
remineralization
Zone 5
Infected zone
not sensitive, numerous bacteria, cant
remineralize
Infected zone
Zone 4
Turbid zone
not sensitive to stimuli, numerous bacteria, can’t remineralize
Turbid zone
Zone 3
Transparent dentin
zone of demineralization
Transparent dentin
still sensitive to stimuli, no presence of bacteria, has capacity to remineralize
Transparent dentin
Zone 2
Subtransparent zone
Zone 1
Normal dentin
still sensitive to stimuli, still has capacity to remineralize, no presence of bacteria
Subtransparent zone
Innermost, still sensitive to stimuli, negative presence of bacteria and has the
capacity to remineralized
Normal dentin
Zone (IZ) - Sensitivity of stimuli
Negative
Zone (IZ) - Presence of Bacteria
Positive
Zone (IZ) - Capacity to Remineralization
Negative
Zone 2 (TZ) - Sensitivity to Stimuli
Negative
Zone 2 (TZ) - Presence of Bacteria
Positive
Zone 2 (TZ) - Capacity to Remineralization
Negative