The PDS Auxiliaries

PhysioDynamic System Auxiliaries:

Building reliability and predictability into your appliance system and business practice just makes sense. The PhysioDynamic Philosophy streamlines the amount of peripheral items you routinely need, allowing you to reduce chair time and treatment time. 

The PDS Philosophy allows the orthodontist to:

  • Use fewer archwires. This reduces the number of appointments, speeds up treatment time and reduces overhead
  • Treat 90% of patients in a very similar manner –from enrollment to proper diagnosis –and from treatment planning to wire sequencing. Chasing the next greatest auxiliary craze can be detrimental in the long run. A version of the Pareto Principle or Principle of Imbalance is used in ALL aspects of the PDS Philosophy

Bite Turbos play a critical part in The PDS Philosophy. Bite Turbos Help….

  • Separate posterior teeth allowing teeth to move more quickly during treatment They also help to suppress the neuromuscu-lar proprioception. This eliminates “biting where the teeth fit”
  • The posterior dentition to more freely erupt correcting the Curve of Spee where appropriate. This allows bony apical fill and permanent deep bite correction
  • Eliminate significant occlusal forces from occurring during tooth contact. (The average person swallows between 1,700-2,400 times per day)
  • Maintain condylar position while keeping the patients’ mandible “loose”
  • Accelerate moving from Class II to Class I. Wear of teeth (especially canines) is virtually eliminated
  • Reduce loose brackets
As lower posterior teeth erupt to level the Curve of Spee, turbos keep the teeth apart. This leaves a boney deficit at the apex of the teeth.
Bone will slowly fill in at the apex of these teeth over a period of 8-10 months. This will prevent relapse of the deep bite.

Bite Turbo Usage…

  • PDS Turbos must be kept in place for at least 8-9 months! This eliminates relapse of overbites
  • PDS Composite Turbos are easier to adjust vs. the metal
  • PDS Turbos are easy to remove

Niti Springs

Top image: 9 mm,
Bottom image: 12 mm
Image closeup
  • PDS Springs include a lumen size of .010 x .030 and force levels between 180-200 grams.  The Length of 9 mm is used from upper first molar to canine. When springs are attached from upper second molars to canines, a .010 x .030 spring of 12 mm length is used
  • Spaces are closed quickly & predictably with a light constant force, allowing you to activate them less often
  • PDS Springs create minimal tipping into extraction spaces
  • Elastic chain creates excessive force initially and minimal force after several weeks, creating more needed visits and replacement

12 weeks later

Note: Placing the distal lumen of the spring around the archwire and not the hook gives another 4 mm of spring activation.

A 20/20 molar tube can be used in maximum anchorage cases.


• Short Class II elastics to “sock-in” occlusion
3/16 – 6.5 oz. Heavy
• Sling elastics
3/16 – 4.5 oz. Medium

Short Class II Elastics =
3/16 – 6.5 oz Heavy
Sling Elastics =
3/16 – 4.5 oz. Medium