CDT 5 Flashcards
1
Q
teeth as a host for caries: how do they bring about caries?
A
molar teeth have the highest incidence rate
fissure morphology relates to incidence
buccal and lingual (smooth surfaces) most resistant
2
Q
mineral loss: from the removal of which elements from the hydroxyapatite lattice?
A
carbonate and magnesium
3
Q
what are the 3 paths a carious lesion can take?
A
- arrest
- remineralize
- cavitate
4
Q
characteristics of those with high caries risk?
A
- socially deprived
- lack of knowledge of disease
- snacks readily available
- low dental aspirations
- irregular visits to dentist
5
Q
fluoride: can be present in?
A
tap water, toothpaste, rinses, varnish (duraphat)
6
Q
fluoride concentration in toothpaste: for those with active caries?
A
10+years: 2800ppmF
16+ years: 5000ppmF
7
Q
fluoride effects?
A
- raise pH minimum of stephan curve
- decreased fissure depth
- dissociates acid: proton pump
8
Q
what are the 5 stages of caries?
A
pre-clinical enamel dentinal caries to pulp caries involving pulp
9
Q
fluoride can only help up to which stage of caries?
A
dentinal stage
10
Q
caries prevention methods x5?
A
- fluoride containing filling materials: glass ionomer cements (fluoride releasing composite)
- chlorhexidine mouthwash
- tooth mousse
- fissure sealant
- caries vaccine
