Rectangular Wires in Torques
The bracket prescribes the torque. The wire is what actually delivers it.
How rectangular wires express torque inside the bracket slot — and the points along treatment where that expression is quietly lost.
If any of this sounds familiar, this is the gap.
You prescribe the torque, finish the case, and the roots are not where the setup said they would be.
Torque disappears during retraction and you only notice it at the finishing stage, when correcting it costs months.
You change bracket prescription hoping for a different result, without knowing what the wire is actually expressing in the slot.
Play between wire and slot is invisible on the model — and it is exactly where the torque you planned is lost.
Read the wire before you blame the bracket.
Torque is not a number written on the bracket — it is what the rectangular wire manages to express inside the slot, under the play, the forces and the sequence you chose. This guide shows how that expression works in practice, where it is lost, and what to decide so the root position you planned is the one you finish with.
- +Understand what the rectangular wire delivers in the slot — and what the play takes away
- +See where torque is lost during retraction, before it becomes a finishing problem
- +Choose wire dimension and sequence with a criterion instead of habit
- +Anticipate unwanted root movement rather than correcting it at the end
Every chapter earns its place.
23 pages · PDF · 1.9 MBTorque: prescription versus expression
The difference between the torque written on the bracket and the torque the wire actually delivers in the slot.
Play between wire and slot
How the clearance between the rectangular wire and the slot decides how much of the planned torque survives.
Wire dimension and sequence
Reading what each rectangular dimension can express, and what changes when you step up the sequence.
Torque during retraction
The stage where torque is most often lost — and the mechanics that protect root position while space closes.
Root position and periodontal limits
How far the root can be taken, and how to avoid the unwanted movement that shows up at the finishing stage.
Prof. Dr. Kleber Meireles.
Orthodontist, international speaker and creator of the KM Orthodontic Diagnosis and Treatment Planning System. Specialist in Orthodontics at USP Bauru, professor and coordinator of postgraduate orthodontics programs, co-creator of the Centrex System published in the Dental Press Journal.
His teaching is built on one premise: cases that used to take four to five years can be resolved in under two — not through talent, but through diagnosis and biomechanics applied as a method.
Built for a specific clinician.
- +Orthodontists who finish cases with roots out of the position they planned
- +Clinicians losing torque during retraction and finding out too late
- +Practitioners who want a criterion for wire selection instead of following habit
- +Postgraduate dentists building the biomechanics behind torque control
- −Anyone looking for a bracket prescription to copy — this guide is about what the wire expresses
- −Clinicians expecting a video course: this is a written guide, illustrated case by case
One price. Everything included.
Secure checkout via Eduzz. Card, installments and international payment supported.
- +23 pages · PDF · 1.9 MB
- +Immediate access · 1 year access
Before you ask.
What format is it, and how do I receive it?
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A 23-page PDF with 182 clinical figures, delivered through the KM Ortho Academy member area immediately after purchase. Read it on any device; your access stays active for one year.
Is it in English?
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Yes. Written in English for the international audience of orthodontists in 131 countries.
Does it apply to any bracket system?
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Yes. The guide is about how a rectangular wire expresses torque inside a slot — the reasoning holds whichever prescription you use, because it starts from the wire and the play, not from a brand.
How is this different from the All About Torques course?
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AAT is the full video course on torque across the whole treatment. This guide goes deep on one specific question in written form: what the rectangular wire delivers in the slot and where that expression is lost.
Read the wire before you blame the bracket.
A practical guide to torque expression in rectangular wires: what the wire really delivers in the slot, why torque is lost during retraction, and how to choose the wire before blaming the bracket.
All About Torques
Torque biomechanics beyond bracket prescriptions. Control inclination during retraction, prevent root resorption and fenestration, and finish with stable intercuspation.
$247 →APB · CourseAccessible & Practical Biomechanics
The complete KM biomechanics program: force systems, bonding strategy, first- to third-order bends, sagittal corrections and finishing — plus the full bonus stack of courses and ebooks.
$1397 →