Diatorics

Use TCS Twist Drills for diatorics. Diatoric holes must be made in a "T" shape that connect in the middle.

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Use TCS Twist Drills to create diatoric retention.
Diatorics holes must be made in “T” shape and  must connect in the middle.
On pre-molars create diatorics as far lingual as possible. 
On molars use a thick Twist Drill to create bigger diatoric holes to ensure material locks in firmly. 

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Select the correct Twist Drill Bur.

Twist Drills come in different diameters, select according to the size/type of tooth to create diatorics/mechanical retention.
  • Meso-distal retentions are made as lingual as possible to avoid interference with the aesthetics of the appliance.
  • Mechanical retentions for anterior teeth are created in a V shape, from lingual to the middle of the neck of the tooth, with the purpose of not interfering with the aesthetics of the appliance.
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Drill two holes.

  • One from the mesial to distal and through the tooth. 
  • Another in the center of the neck of the tooth until it is intercepted with the meso-distal retention.
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Check.

Check that the retentive holes are in the correct position, slightly inclined. Then proceed to set the teeth. 

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