3rd year Flashcards
longest interval for child recall?
12months
child recall in high risk?
3months
what is classical conditioning?
make environment different to situations child has felt scared before
what is operant conditioning?
reward good behaviour
what is ICCMS?
international caries classification + management system
what is sensitivity?
probability of getting a false negative
high sensitivity = low false negative
what is specificity?
probability of getting a false positive
high specificity = low false positive
how do children gingiva look different to adults?
more vascular, thinner ep, less keratinisation, fewer CT
= redder, can be confused for inflammation
how can puberty effect gingiva
change in hormones can lead to chronic gingivitis
if severe = aggressive periodontal disease
what anticonvulsant can cause gingival hyperplasia?
phenytoin
difference between major + minor gingivitis artefacta
major = loss of periodontal support
what happens in Reyes syndrome?
brain + liver damage
how to manage natal/neonatal teeth?
only remove if:
- mobile
- interfere with feeding
- inflammation/ulcers
natal = birth, neonatal = 30days after birth
what is ferric sulphate used for?
haemorrhage control
when carrying out a pulpotomy on a primary molar, what is profuse haemorrhage a sign of ? and how should it be treated?
serious inflammation of radicular pulp
intermediate dressing with ledermix
second visit - pulpotomy
should orginally stop bleeding in <3mins
why is formaldehyde CI in pulpotomy?
carcinogenic
how does MTA (Mineral trioxide aggregate) work?
stimulates cytokine release from plural fibroblasts, stimulating hard tissue formation
used for internal resoprtion
which primary teeth would you consider RCT in?
non-vital Es only - all others extract
what do you use instead of gutta percha in primary RCT?
resorbable paste
what causes a tooth to turn pink?
internal resorption
4 causes of systemic intrinsic enamel staining?
amelogenisis imperfecta
fluorisis
systemic illness
idiopathic
5 causes of local intrinsic dentine staining?
- necrotic pulp
- metal ions from amalgam
- root canal filling materials
- caries
- internal resorption
4 causes of systemic intrinsic dentine staining?
- dentinogenous imperfecta
- tetracycline
- congenital porphyria
- liver problems = xs bilirubin stain teeth green/yellow
4 treatments for discoloured teeth in children?
- enamel micro-abrasion
- whitening - vital + non-vital
- veneers
- crowns
6 times when micro abrasion indicated ?
- white/brown marks intrinsic in outer layer of enamel
- turner teeth
- fluorosis
- idiopathic speckling
- post-ortho demineralisation
- prior to veneers
what chemicals are used for micro-abrasion?
37% phosphoric acid or 18% HCL
then sodium bicarbonate + water
fluoride paste
what is it important to tell pt after micro-abrasion?
dont eat coloured food for 12hrs
enamel can look creamier
what is orobase used for?
protect gingivae in tooth whitening
legal max percentage of hydrogen peroxide?
6%
what chemical is used for tray based whitening of vital teeth?
10% carbamide peroxide - releases 3% hydrogen peroxide
2 techniques used for non-vital bleaching?
walking bleach
inside/outside bleaching
after removing 1-2mm of GP what must be placed over the root filling for walking bleach/inside out technique?
zinc phosphate cement/ GIC
what % of carbamide peroxide is used for walking bleaching?
35%
why are therm-catalytic techniques for walking bleaching CI?
risk of cervical resorption
osteoclast activity increases as pH decreases
how many acidic intakes a day is classed as high risk for erosion?
> 4
when does hypominerlisation in MIH (Molar incisor hypomineralisation) happen?
post eruption
how can hypomineralised enamel effect restoration?
reduced bond strength
does amelogenisis imperfecta have more effect on primary or permanent teeth?
primary
does dentinogenesis imperfecta have more effect on primary or permanent teeth?
permanent
