Use Acrobat at 300 RPM and 2.0-2.5 Ncm before asking shaping files to work at length.
Motor Settings Reference
Technique guide
Motor settings support clinical control, but they do not replace sequence discipline. Use the settings below as a practical reference, then adapt within the clinician’s judgement for anatomy, access, irrigation, and file feedback.
Clinical aimKeep rotary behaviour predictable.
Correct RPM and torque help the file work within its intended range while the clinician monitors resistance, glide path quality, and canal anatomy.
System logicSettings support the sequence.
Glide path files, TransformX™ ET, and TransformX™ PT each have a defined clinical role and should be used with light pressure and frequent irrigation.
Quick Reference
Section titled “Quick Reference”| System | Speed | Torque | Clinical role |
|---|---|---|---|
| Acrobat Glide Path | 300 RPM | 2.0-2.5 Ncm | Establish and confirm a reproducible glide path before shaping. |
| TransformX™ ET | 350 RPM | 3.0 Ncm | Shape and finish ET-style .04/.06 taper preparations. |
| TransformX™ PT | 300 RPM | 3.0 Ncm | Preserve progressive PT-style coronal-to-apical sequence logic. |
Clinical control
If the file binds, withdraw, irrigate, recapitulate, and re-enter without apical pressure. Motor feedback is clinical information, not a prompt to push harder.
Clinical Problem
Section titled “Clinical Problem”Incorrect settings can increase stress on the file and reduce tactile control. The problem is greatest when anatomy is curved, the glide path is incomplete, or the file is asked to progress under apical pressure.
| Setting issue | Clinical consequence |
|---|---|
| Too much apical pressureForce replaces file feedback | Higher torsional demand and greater risk of abrupt engagement. |
| Poor glide path controlShaping file must negotiate anatomy | More canal stress and less predictable progression to working length. |
| Ignoring resistanceMotor data not treated as feedback | Reduced ability to respond before transportation or file fatigue develops. |
TransformX™ Solution
Section titled “TransformX™ Solution”TransformX™ is designed to preserve familiar rotary technique while adding more controlled shaping behaviour. The settings below keep each file inside its intended clinical role.
Use TransformX™ ET or PT at the recommended torque and let file feedback guide each pass.
Irrigate, recapitulate, re-irrigate, then re-enter only when the canal path feels reproducible.
TransformX™ ET Settings
Section titled “TransformX™ ET Settings”For clinicians using EdgeTaper, EdgeX7, Race Evo, or similar .04/.06 taper systems.
| Step | File | Speed | Torque | Purpose |
|---|---|---|---|---|
| 1 | Acrobat 13/.03 | 300 RPM | 2.0-2.5 Ncm | Glide path |
| 2 | ET 20/.04 | 350 RPM | 3.0 Ncm | Shaping |
| 3 | ET 25/.04 | 350 RPM | 3.0 Ncm | Finishing |
ET files can run at speeds up to 500 RPM if preferred. Use the lower end when tactile feedback is more important, especially in restricted or curved anatomy.
TransformX™ PT Settings
Section titled “TransformX™ PT Settings”For clinicians using ProTaper Gold, ProTaper Next, or similar progressive taper systems.
| Step | File | Speed | Torque | Purpose |
|---|---|---|---|---|
| 1 | SX | 300 RPM | 3.0 Ncm | Coronal shaping |
| 2 | S1, S2 | 300 RPM | 3.0 Ncm | Middle third shaping |
| 3 | F1, F2, F3 | 300 RPM | 3.0 Ncm | Apical finishing |
Key Features
Section titled “Key Features”Acrobat reference settings
Lower torque settings support controlled path confirmation before shaping starts.
Simple .04/.06 shaping reference
ET settings keep shaping and finishing steps easy to reproduce in familiar workflows.
Progressive sequence settings
PT settings preserve the coronal-to-apical sequence logic clinicians already understand.
Clinical Benefits
Section titled “Clinical Benefits”Clear chairside reference
Reduced setting ambiguity
Better file feedback during shaping
Consistent sequence discipline
Improved response to resistance
Safer use in curved or restricted anatomy