The Frankel appliance is an positioner applaince used to teach the muscles to move the lower jaw forward, by applying forces against the buccal vestivales. While at the same time moving the upper teeth back.
This is a very specialized appliance. An Orthodontis and an Orthodontic Dental Lab would work together to make this appliance.
The TAP appliance is strictly and auto repositioner appliance for OSA, it works by moving the lower jaw forward, via an jack screw built into the anterior upper splint. By moving the lower jaw into a protrucive position it opens up the airway.
VDO is an term for the opened vertical of the upper and lower arch. When your at rest your teeth don't quite touch. This is centric position. When you close down and touch place your teeth into contact, this is closed centric.
Yes, the TAP needs to be prescribed and fited by a Dentist. The appliance is made under an RX from the Dentist. He will help the pt adjust it to provide maximun protrucive position.
The TAP is made under licence from Airway Management Company. It stands for Thornton Adjustable Positioner.
Here is an link to our company web site:
http://www.glidewell-lab.com/products/removables/tap.html
The menu at the right allows you to open an info page that will give you some additional info.
The TAP is a durable applaince that will last. From what we understand the TAP III is coming out after the first of the year, but at what date, hasn't been established yet. It will not only move the lower jaw into an protrucive position, it will also allow the vertical to be opened as well.
I hope this helps you?