Staining Flashcards

1
Q

yellow stain is?

A

most common extrinsic
film of discoloured plaque
poor oh

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2
Q

what is tobacco stain?

A
second most common extrinsic stain
black/yellow
usually embedded in plaque/calculus
most common at cervical margins or depressions in enamel
may become exogenous
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3
Q

what is green stain?

A
seen in childrens teeth at site of primary cuticle of maxillary incisors
chromogenic bacteria and fungi
associated with poor oh 
often underlying decalcification
may become exogenous
can only be removed by polishing
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4
Q

what is the composition of green stain?

A

chromogenic bacteria
fungi
decomposed haemaglobin
inorganic elements - calcium/potassium/sodium/magnesium

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5
Q

what is black line stain?

A

metabolic stain/black stain/mesenteric stain/brown stain
- good OH
usually follows contour of gingival margin on lingual surfaces approx. 1mm above g margin
chromogenic bacteria and inorganic salts
related to individual body chemistry
hard to remove

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6
Q

what are red and orange stains?

A

rare
chromogenic bacteria
most common in anterior teeth

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7
Q

what kind of stain can a damage to pulp tissue give?

A

haemorrhage in pulp/chamber and decomposition of tissue
pigments and decomposing material enters tubules
wide range of colours
not all pulpless teeth discolour
may be bleached internally

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8
Q

what is hereditary amelogenesis imperfect?

A

rare
lack of enamel formation
yellowish/brown in colour
disturbance of ameloblasts leading to missing or incomplete enamel

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9
Q

what is hereditary dentinogenesis imperfect?

A

odontoblast disturbance

translucent, grey/blue/brown in colour

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