ORTHO PREP

Question 1

What are the 10 steps to check/do when fitting a URA?

Answer 1

1. Check patient matches appliance
2. Check appliance matches prescription
3. Check for sharp edges
4. Check integrity of wire work
5. Put in & check for blanching/trauma
6. Check posterior retention
7. Check anterior retention
8. Activate appliance
9. Demonstrate putting in & out… get patient to practise
10. Book review appt 4-6 weeks

Question 2

What are the 10 patient instructions to give when prescribing URA?

Answer 2

1. Initially feel big & bulky
2. Mild discomfort (indicates working)
3. Impinge on speech (practise reading aloud)
4. Excessive salivation (24hrs)
5. Wear 24/7 (including mealtimes)
6. Clean after every meal
7. Non-compliance increases treatment time
8. Avoid hard & sticky foods
9. Remove & store for contact/active sports
10. Give emergency contact number

Question 3

What are the constituents of stainless steel & their %s?

Answer 3

Iron - 72%
Chromium - 18%
Nickel - 8%
Titanium - 1.7%
Carbon - 0.3%

Question 4

What gauge of wire is used for Adams clasps?

Answer 4

0.7mm HSSW

Question 5

What gauge of wire is used for active components such as Z-springs?

Answer 5

0.5mm HSSW

Question 6

What type of acrylic is used in URAs?

Answer 6

Self cure PMMA