procedures Flashcards
function of silver diamine fluoride?
prevent caries
relieve dentinal hypersensitivity
features of silver diamine fluoride?
colourless
odourless
liquid
what does SDF contain?
silver
ammonium
fluoride ions
pH of SDF?
10.4
purpose of silver in SDF?
antimicrobial
purpose of fluoride in SDF?
remineralisation of enamel and dentine
preventing and arresting dental caries
why does SDF stain oxidisable surfaces?
formation of silver oxide layer
what is ART?
atraumatic restorative treatment
selective caries remover using only hand instruments and placement of GIC restoration
when would you use ART?
single surface cavities in primary and permanent teeth
caries into dentine but still a clear band of dentine between lesion and dental pulp
cooperation limited
how do you prepare a cavity for ART?
establish clear peripheral margins with sharp hand instrument (excavator)
what can be used to separate teeth?
orthodontic separators
when would you place a separator?
prior to fitting a metal crown using Hall technique
aid caries diagnosis through visualisation and access to proximal contacts
when placing proximal sealants
what does Hall technique eliminate?
caries removal
tooth prep
LA
when would you use the Hall technique?
multi-surface lesions OR non-cavitated lesion into dentine
no clinical/ radiographic signs of pulpal pathology
clear band of dentine between cavity and pulp
temporise 1st permanent molars (until time of extraction)
in the hall technique, what is the crown loaded with?
GIC luting cement
when would you restore an anterior primary tooth with a crown form?
significant substance loss or caries
what is the aim of cavity prep?
establish clear peripheral margins around carious lesion
provide adequate depth required for material being used
no caries in dentino-enamel junction
why do you leave caries on the floor of the cavity?
preserve pulpal health
maintain integrity of tooth structure
facilitate retention and function of material
what material should be avoided with multisurface cavities?
GI
what is a pulpotomy?
inflamed and possibly infected coronal pulp tissue is removed from carious primary tooth to preserve healthy radicular pulp
when is a pulpotomy indicated?
in a tooth with signs/ symptoms of irreversible pulpal inflammation
or
radiographically there is no normal appearing dentine separating the pulp tissue from a carious lesion
tooth must not have any clinical or radiographic signs of infection or peri radicular periodontitis
function of rubber dam?
protect airway
increase pt comfort
reduce chance of bacterial ingress
enhance moisture control
when would it be assumed that the pulp is non vital?
no bleeding occurs when access to pulp has been gained
what happens if you find out that the pulp is non vital?
pulpectomy or extraction
