Orthodontics - delivery of URA Flashcards
1
Q
What are the 10 steps of fitting a URA?
A
- ensure patient details match the supplied appliance
- check appliance matches design
- inspect with finger for any sharp areas
- check integrity of wirework (ie damage, work-hardening)
- insert into patient’s mouth, checking for trauma or blanching
- check posterior retention (Adam’s)
- check anterior retention
- activate appliance
- demonstrate insertion/removal to patient (get patient to show you)
- book review 4-6 weeks
2
Q
What are the advantages of URA?
A
- tipping teeth
- easily adapted for OB reduction
- block movements
- excellent anchorage
- cheaper
- shorter chairside
- OH easier to maintain
- non-destructive
- less training required
3
Q
What are the disadvantages of URA?
A
- less precise
- easily removable
- 1-2 teeth move at a time
- technical staff to construct URA
- rotations are difficult
4
Q
What information should you give to the patient when delivering the URA? (10)
A
- appliance will feel bulky, you will get used to it quickly
- hypersalivation should subside in 24 hours
- may impinge speech
- initial discomfort is normal (device is working)
- wear 24 hours including eating and sleeping
- remove after every meal and clean with soft brush
- remove and store in protective container when playing contact or active sports
- avoid hard, sticky foods and be cautious of hot drinks
- missing appointments or not wearing appliance lengthens treatment time significantly
- emergency contact details
5
Q
How can you tell if a patient has been wearing their URA?
A
- ask
- did they wear into the surgery
- can they speak with it in
- are they suffering from excess salivation
- can they insert/remove easily
- are there signs of wear on appliance
- does the palate look like they’ve been wearing it ie erythema
- has the tooth moved/is active competent passive
- does the appliance still fit
6
Q
How do you activate a Z-spring to push a tooth forward?
A
Adjust both springs
7
Q
How do you activate a Z-spring to rotate a tooth anticlockwise?
A
Adjust the LHS spring
8
Q
How do you activate a Z-spring to rotate a tooth clockwise?
A
Adjust the RHS spring
9
Q
What pliers are used to activate Z-spring components?
A
No 65
