GET Prescription: Upper

U1, U2: .020″x.028″ slot

U1: 12°T, 5°A / U2: 8°T, 9°A

Normally, the problem with upper incisors is a lack of torque at the end of treatment. This is due to the play between the archwire and slot. In some prescriptions, an extra-torque series of brackets are available. With the GET prescription, it is preferred to decrease the size of the slot and maintain normal torque values. This has two advantages:

  • Allows for more predictable expression of torque values

  • Reduces the need of extra inventory for the orthodontist

GET Prescription A9Ridddxj_1nt43l8_jbg
The play of a .019″x.025″ wire in a .022″x.028″ slot is 8,7°, which means in real life it is more, taking into consideration side-effects in the production process.

The play of the same .019″x.025″, wire in a .020″x.028″ slot is 2,8°.

U3: .022″x.028″ slot

U3: 0°T, 11°A

We have chosen the original straight wire with 11 degrees mesial tip, to allow for an increased arch length in the upper arch and 0 degrees torque to avoid too steep of canine guidance, which can lead to an immediate increase of Bennett movement.

U4, U5: .022″x.028″ slot

U4/5: -10°T, 4°A

We have chosen to add very little extra lingual crown torque (-10 degrees). We do not want to have upper premolars with a marked lingual inclination as an “open” position is better from a gnathological standpoint. However, 3 degrees extra negative torque are needed to compensate for side-effects of levelling, which tends to flare out premolars.

U6, U7: .022″x.028″ slot

U6: -20°T, 10°OF / U7: -25°T, 6°OF

We have reduced the value of the distal rotation to the original straight wire value (U6) and even less (U7) than that. This is to avoid that the disto-vestibular cusp of the upper second molar to project lingually, which is a major source of pre-contacts. We have also chosen to increase the lingual crown torque to reduce the tendency of pre-contacts due to hanging palatal cusps of upper molars (especially second molars).

GET Prescription: Lower

L1, L2: .020″x.028″ slot

L1 / L2: -1°T, 2°A

We have maintained classical values of torque, but the slot .020”x;028” allows for optimal control. Moreover, the low profile of EXPERIENCE™ mini brackets helps solve a very common problem of self-ligating brackets, which tend to give a pre-contact with the lingual face of upper incisors, in some cases hindering completion of overjet reduction.

L3: .022″x.028″ slot

L3: -3°T, 3°A

By using a reduced value of mesial tip the lower arch length is reduced. At the same time, we have chosen a reduced value of lingual crown torque, to avoid excessive transverse overjet and to harmonise with the decreased lingual crown torque of upper canines.

L4, 5, 6, 7: .022″x.028″ slot

L4: -17°T, 1°A / L5: – 22°, 1°A / L6: / L7: -30T, 4°OF

Normal straight wire prescription values have been maintained.
GET Prescription A9R11bxeot_1nt43la_jbg


GET Archwire Sequence


 
High Angle Cases

INITIALLOY™ .014″ Light – INITIALLOY™ .016″ Light – INITIALLOY™ .018″ light -.020″x.020″ BIO-ACTIVE™ Light -.019″x.025″ 100 g – BIO-EDGE™ – .019″x.025” – Multiflex.


 
Low Angle Cases

.020″x.020″ BIO-ACTIVE™ Light – .019″x.025″ 100 g BIO-EDGE™ – .019″x.025″ Ss – .019″x.025″ – Multiflex. 


 
Severe Crowding

INITIALLOY™ .014″ light – .020″x.020″ BIO-ACTIVE™ Light (insert in 7) – .019″x.025″ 100 g BIO-EDGE™ -.019″x.025″ Ss – .019″x.025″ – Multiflex.


 
Moderate Crowding

.020″x.020″ BIO-ACTIVE™ Light – .019″x.025″ 100 g BIO-EDGE™ – .019″x.025″ Ss – 019″x.025″ T – Multiflex.


 
Extraction Cases

INITIALLOY™ .014″ medium – .020″x.020″ BIO-ACTIVE™ Light – .018″ Ss – .019″x.025″ 100 g BIO-EDGE™ – .019″x.025″
Ss with hook or dkl – .019″x.025″ 200 g BIO-EDGE™ – .019″x.025″ – Multiflex


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