Orthodontics - lab prescription

Question 1

AIM - URA to correct anterior crossbite

Answer 1

A - Z spring in 0.5mm HSSW
R - Adam’s clasp on 4s and 6s in 0.7mm HSSW
A - yes, only moving one tooth
B - self cure PMMA with PBP

Question 2

AIM - URA to expand upper arch

Answer 2

A - midpalatal screw
R - Adam’s clasp on 4 s and 6s in 0.7mm HSSW
A - reciprocal anchorage
B - self cure PMMA with PBP

Question 3

AIM - URA to retract canines in arch

Answer 3

A - palatal finger spring and guard in 0.5mm HSSW
R - Adam’s clasp on 6s in 0.7mm HSSW, Southend clasp on 1s in 0.7mm HSSW
A - yes, only moving two teeth
B - self cure PMMA

Question 4

AIM - URA to correct retract canines in arch and reduce OB

Answer 4

A - palatal finger spring and guard in 0.5mm HSSW
R - Adam’s clasp on 6s in 0.7mm HSSW, Southend clasp on 1s in 0.7mm HSSW
A - yes, only moving two teeth
B - self cure PMMA with FABP (OJ+3mm)

Question 5

AIM - URA to correct buccal placed canine and reduce OB

Answer 5

A - buccal canine retractor in 0.5mm HSSW with 0.5mm HSSW internal diameter tubing
R - Adam’s clasp on 6s in 0.7mm HSSW, Southend clasp on 1s in 0.7mm HSSW
A - yes, only moving two teeth
B - self cure PMMA with FABP (OJ+3mm)

Question 6

AIM - URA to correct buccal placed canine

Answer 6

A - buccal canine retractor in 0.5mm HSSW with 0.5mm HSSW internal diameter tubing
R - Adam’s clasp on 6s in 0.7mm HSSW, Southend clasp on 1s in 0.7mm HSSW
A - yes, only moving one tooth
B - self cure PMMA

Question 7

AIM - URA to correct overbite

Answer 7

A - 12-22 Robert’s retractor in 0.5mm HSSW with 0.5mm ID tubing, stops on 13 and 23 in 0.7mm flattened HSSW
R - Adam’s clasp on 6s in 0.7mm HSSW
A - moving 4 teeth
B - self cure PMMA with FABP (OJ+3mm)

Question 8

A(1) in ARAB

Answer 8

Active component

Question 9

R in ARAB

Answer 9

Retention

Question 10

A(2) in ARAB

Answer 10

Anchorage

Question 11

B in ARAB

Answer 11

Baseplate