MIXED DENTITION Flashcards
when do primary teeth begin to erupt?
6 months
when is the full primary dentition established?
2.5 years
when do lower As erupt?
6 months
when do upper As erupt?
8 months
when do upper Bs erupt?
10 months
when do lower Bs erupt?
12 months
when do Cs erupt?
18 months
when do Ds erupt?
14 months
when do E erupt?
24 months/ 2 years
when do permanent teeth begin to erupt?
6 years
when is the permanent dentition (excluding 8s) established?
12 years old
what is a diastema? what causes it?
a gap between upper central incisors
caused by overgrowth of the labial frenulum
what toothpaste is suitable for <3 year olds?
smear of 1000ppm
what toothpaste is suitable for 3-6 year olds?
1000ppm pea sized
what tooth paste is suitable for 7+ years?
1350-1500ppm
what tooth paste can you prescribe 10+ yr olds at high risk of caries?
2800ppm
what toothpaste can you prescribe 16+ year olds at high risk of caries?
2800/5000ppm
what are the main diet advice points?
balanced diet
drink milk and water
4 sugar hits/day, preferably with meals
non-cariogenic snacks - veg and cheese
do not drink/ eat after night time brushing
wary of hidden sugars and acids
how strong is fluoride varnish?
22600ppm
how many times a year can fluoride varnish be applied?
2
how many times a year can fluoride varnish be applied for children at high risk of caries?
4
what advice is given after fluoride varnish application?
do not eat or drink 30 mins after application
what are the contraindications for fluoride varnish?
colophony allergy
asthma hospitalisation
ulcerative gingivitis
what are the 2 materials used for fissure sealants?
resin
GI
when and where are fissure sealants applied?
all permanent molars after eruption
all susceptible pits and fissures where a child is at risk of caries
when would you use GI for fissure sealants? how can you apply it?
poor cooperation/ moisture control
easy to apply with finger press technique
what type of lesions may you want to fissure seal?
initial occlusal and proximal lesions
how many times a year can you apply SDF?
2
what percentage of SDF do we use?
38%
what is SDF licensed for in the UK?
desensitisation
what are the indications for the use of SDF?
- Pts at high risk of caries (xerostomia/ severe early childhood caries).
- Pre-cooperative child (very young).
- Treatment challenged by behavioural or medical conditions.
- Pts with several carious lesions that may not be treated in one visit.
- Difficult to treat dental carious lesions.
- Pts without access to dental care.
what are the contraindications of SDF?
silver allergy
pain’ IP/PA
infection; swelling, abscess, fistula
unable to isolate tooth
how is SDF applied?
microbrush and agitate for 1 min
what consent do you have to gain before applying SDF?
pt and parent must be aware the lesion will go dark/ black
it stains every thing it touches
what do you place before placement of a hall crown? and when?
orthodontic separators 5-7 days prior
what material is a hall crown?
stainless steel
what is the hall crown filled with for cementation?
GI luting cement
what are the indications for a hall crown?
asymptomatic
clear band of dentine
proximal lesions cavitated or non cavitated
occlusal lesions if pt cannot tolerate other treatment
what are contraindications of hall crown?
IR or abscess/ infection
caries in to pulp
arrested caries
how long does it take for occlusal equilibration following crown placement?
4-6 weeks
what is stepwise caries removal? and does it require LA?
yes LA
stage 1 - remove superficial caries and place GI
stage 2 (6-12 months later) - access cavity and place permanent restoration
there should be an increased distance of pulp to caries
when would you use stepwise caries removal?
extensive occlusal or proximal lesions in permanent molars
when would you do complete caries removal?
moderate occlusal lesions
moderate proximal lesions
advanced anterior lesions
what is selective caries removal?
leave arrested caries at the base of the cavity and clear the walls
when would you use selective caries removal?
moderate occlusal lesions
moderate proximal lesions
what is site specific prevention?
show parent and child the carious lesion
OHI
diet advice
fluoride varnish
monitor
if not arrested after 3 months, consider alternative tx
when would you do site specific prevention?
initial proximal lesions
how would you treat an initial occlusal lesion in a primary tooth?
site specific prevention or fissure sealh
how would you treat an advanced occlusal lesion in primary teeth?
selective caries removal or hall crown
how would you manage an initial proximal lesion in primary teeth?
site specific prevention or fissure seal
how would you manage an advanced proximal lesion in primary teeth ?
selective caries removal or hall crown
when can you start taking bitewings?
4 years
when do you take bitewings for high risk pts?
every 6 months
when do you take bitewings of primary dentition low risk?
every 1 year
when do you take bitewings of permanent dentition low risk?
every 2 years
how often do you make appointments for high risk caries?
every 3 months
how often do you recall low caries risk pts?
6 months
