types and causes of oral disease Flashcards
what do very early acid attacks present as?
white spot lesions
When does remineralisation occur and what does it present as?
it occurs when the acid attacks are less regular and appear as small brown lesions.
what happens when there is frequent prolonged acid attacks?
the mineral structure of the enamel is destroyed and caries enters the tooth.
what layer of tooth does caries have to pass through before it reaches the dentine?
Amelodential junction (ADJ)
why can caries spread more rapidly in the dentine?
because it has a hollow structure and a lower mineral content.
what cells lay down secondary dentine to protect the underlying pulp tissue?
odontoblasts
what is it called when the pulp tissue becomes inflamed?
pulpitis
what is reversible pulpitis?
when the dentist can remove the caries and put a filling in it
what is irreversible pulpitis?
when the caries is too gross it cannot be fixed by a simple filling.
what are iatrogenic factors?
imperfect dentistry that the patient can’t help such as bad fitting crowns.
what is it called where the gingiva attaches directly to the neck of the tooth?
junctional epithelium
what is it called when gingivitis effects the whole oral cavity?
chronic gingivitis
when does plaque release toxins?
as a by product of its own food digestion
what happens when the toxins come into direct contact with the gingivitis?
inflammation
what is a false pocket?
when the gums are inflamed but the junctional epithelium is actually still attached.
