URA Flashcards
fit/ delivery checklist for URA (8)
1 - check appliance is for correct patient
2 - check appliance matches prescription
3 - run finger to assess for sharp areas
4 - assess wirework integrity
5 - fit appliance and assess for blanching or trauma
6 - check retention
7 - demonstrate insertion and removal and ask pt to demonstrate
8 - review appt in 4-6 weeks
Patient instructions/ information for new URA (6)
- will feel big and bulky to begin with
- may notice excess saliva in first couple days
- speech may initially be affected (practice reading aloud)
- wear all day everyday including meal times
- remove for contact sports
- clean with soft bristled brush
- avoid hard sticky foods
- caution with hot foods
- provide emergency contact number
what should be included on design prescription for a URA
Aim of device
Active components
Retentive components
Anchorage
Base
wire thickness for active and retentive components of a URA
active components - 0.5mm HSSW
ID tubing 0.5mm
retentive components (permanent) - 0.7mm HSSW
retentive components (deciduous) - 0.6mm HSSW
URA for reducing overbite
flat anterior bite plane
adams and southend clasps
URA for reducing overjet
roberts retractor 0.5mm HSSW and 0.5mm ID tubing
mesial stops
adams clasps
URA for retracting canines
palatal finger springs and guard, 0.5mm HSSW
Adams and southend
URA for retracting bucally placed canines
buccal canine retractor 0.5mm HSSW and 0.5mm ID tubing
Adams and southend
URA for anterior cross bite
z spring 0.5mm HSSW
4 adams
posterior BP
URA for posterior crossbite
midline palatal screw
4 adams
posterior bite plane
acronym for IOTN
MOCDO
Missing/ impacted teeth
Overjet
Crossbite (with mandibular displacement >2mm)
Displaced contact points
Overbite (traumatic)
name 3 potential faults of a URA
- device does not match prescription
- active component encased in acrylic (cant activate)
- broken clasps
- FABP instead of PBP
- clasps on wrong teeth
