ortho Flashcards
what class is it when the upper incisors protrude and the overjet is increased more than 2-4mm?
Class II div I
what class is it when the upper central incisors tilt inwards giving a decreased overjet and increased overbite?
Class II div II
what class is it when the chin appears prominent?
Class III
neutrocclusion 2-4mm overjet and 30-50% overbite
class I
what is an overbite?
vertical measurement
what is an overjet?
horizontal measurement
what does traumatic overjet/ overbite mean?
causes pain to the gums either lower buccal gum with overjet or palate with overbite.
what appliance can be used for the movement of teeth forwards or backwards in each arch?
removable and fixed
what appliance can be used for the movement of jaws in relation to eachother?
functional and fixed
what appliance can be used to align slightly misplaced teeth in an arch?
removable and fixed
what appliance can be used to align severly misplaced teeth in an arch?
fixed
what appliance is used for derotation of teeth?
fixed
what appliance is used for guided eruption of unerupted teeth?
fixed
what appliance is used for a deep overbite?
fixed and removable
flexible nickle titanium or stainless steel wires to fasten into the brackets or bands.
arch wire
right angled cutters to trim the end of the arch wire after replacement
end cutters
rubber bands to hold the arch wire into the slots of each bracket
alastiks
ratcheted holders to apply the alastiks to brackets
alastik holders
metal or ceramic components to attach to each tooth if any have been lost since last appointment
brackets
metal rings to attach to molars especially
bands
used instead of a molar band where orthodontic forces are unlikely to dislodge the tube
buccal tube
to hold and position each bracket to the centre of the tooth, if any replacements are required
bracket holders
to remove brackets and bands and any residual bond before replacing
bracket and band removers
acid etch and orthodontic resin bond material to hold brackets onto the tooth
bonding materials
any luting cement material to hold bands onto the molar teeth
band cement
what are the main instructions to care for orthodontic appliances? (5)
- clean with a manual toothbrush after every meal
- daily use of interdental brushes
- avoid fizzy drinks and sugary foods for the whole treatment period
- use a fluoride mouthwash
- use disclosing treatments
to adjust all metal springs and retractors as necessary
Adams crib pliers
to adjust all acrylic areas pf the appliance
straight hand piece and acrylic trimming bur
to record any measurable tooth movement such as the overjet
measuring ruler
to count the number of turns applied to the screw between visits to ensure compliance by the patient
expansion screw key
retain the appliance in the mouth usually fit onto molar or premolar teeth and made of stainless steel
Adams cribs
to move the teeth along the arch
springs
what is an example of a functional appliance?
twin block
how regularly are Invisalign aligners changed?
2 weeks
how many hours a day do you have to wear removable braces for?
22 hours a day
