fitting and activation of ura

Question 1

types of retentive components

Answer 1

adams clasp = molars = 0.7 mm ss on permanents, 0.6mm on deciduous

southend clasp = 0.7 mm ss = looks like wave on ants

labial bows = 0.7 mm ss = crosses ants straight line

Question 2

types of active components

Answer 2

0.5 mm ss

finger spring + guard
z spring
flapper spring
t-spring
buccal canine retractor
roberts retractor

Question 3

fitting a ura

Answer 3

1. Ensure the patients details match the details supplied for the appliance (Right appliance-Right patient).
2. Check the appliance matches the design specifications.
3. Inspect the appliance and run your finger over all surfaces looking for sharp or potentially traumatic areas.
4. Check the integrity of the wirework (Damage or work-hardening).
5. Insert the appliance into the patients mouth, immediately looking for areas of blanching or soft tissue trauma.
6. Check the posterior retention (Adam’s clasp. Firstly the flyovers, then the arrowheads are correctly engaging the appropriate undercuts.
7. Apply the same principles to the anterior retention.
8. Activate the appliance (1mm movement approximately per month).
9. Demonstrate to the patient the correct procedure for insertion and removal of the appliance (Ensure that the patient demonstrates this correctly).
10. Book a review appointment 4-6 weeks

Question 4

patient info and poig

Answer 4

1. Appliance will feel big & bulky (this is perfectly normal, and they will get used to it quickly).
2. My cause initial excessive salivation (this will pass in 24 hours).
3. May impinge speech for a short period of time (practise reading a book aloud at home and this will subside).
4. May cause initial discomfort or ache (this is perfectly normal, and indicates that the appliance is working).
5. To be worn 24/7 including meal times & sleep.
6. Remove after every meal and clean with a soft brush.
7. Remove and store in a protective container when participating in contact or active sports.
8. Avoid hard or sticky foods that may damage the appliance and be cautious with hot food or drinks.
9. Missing appointments and non-compliance will significantly lengthen the treatment time.
10. Provide emergency contact details in case any problems arise.