Home / Appliances / Distalization / PHD PHD The PHD appliance is an alternative to the Pendex with an 8 mm expansion screw and laser-welded sheaths, for upper expansion first and molar distalization second.
Distalization PHD The laser-welded sheaths let you reactivate the appliance during treatment for additional distalization. Rests or bands add anchorage, and you complete expansion before distalization starts. Choose it over the MDA when an 8 mm screw gives the expansion you need.
Anchorage
Premolar rests or bands
Patient age
Late mixed or permanent dentition
Correction
Expansion, then molar distalization
Compliance
Low, screw turns only
Turnaround
10 business days or faster
When it’s the right call.
Use it when
Distalization that needs only a smaller expansion screw
Expansion you want finished before distalization starts
Upper molar distalization after transverse correction
Class II molar relationship without headgear or elastics
Consider another appliance when
You need more expansion than an 8 mm screw gives See MDA
You want a palatal Nance button for anchorage See Pendex
Options you can prescribe.
Anchorage
Choose bands, ROC crowns, crowns or OnBRACE® (note OnBRACE® on the Rx). Also available 3D printed from your scan.
Click screw
Order an optional click screw in place of the standard screw.
What every PHD
case needs.
Send these with the case and it goes straight onto the bench. If anything’s missing, we call you before we start.
Upper and lower digital scans, or stone models if you work on stone
The completed Rx sheet, with your design choices marked
Your requested return date, so we schedule the case back from it
Resources for the PHD
The Rx sheet, instructions for use and chairside guides, ready to download or share with your team.
What is the PHD appliance?
An alternative to the Pendex. It uses an 8 mm expansion screw with laser-welded sheaths, so you can reactivate it for more distalization.
PHD vs MDA: which should I prescribe?
Same concept, different screw. The PHD has an 8 mm expansion screw, and the MDA a 12 mm screw.
Can I reactivate the PHD during treatment?
Yes. The laser-welded sheaths let you reactivate it for additional distalization.
Is a click screw available on the PHD?
Yes, as an option. Anchorage can be bands, ROC crowns, crowns or OnBRACE®.
Send us your next case.
Appliances that fit the first time and arrive on time.
