What does a Transpalatal arch do?
The Trans-Palatal Arch is used to hold upper molars in place, stabilizing the position of these teeth during or after the movement of other teeth. The TPA can also be used to rotate molars into more ideal positions to improve the bite and to help the molars move as a unit when working together with TADs.
What is a Transpalatal bar Nance lingual arch?
The lower lingual arch has an archwire adapted to the lingual (inside) of the lower teeth. In the upper arch, the archwire is usually connecting the two molars across the roof of the mouth and is commonly referred to as “Transpalatal Arch”, or TPA. We also utilize a Nance holding appliance, or NHA.
How long do you wear a Transpalatal Arch?
TPAs may follow tooth extraction recommendations, and it can be used both before and during treatment with braces. Treatment time with a TPA depends on the reason for usage, but, as a general rule, you can expect to wear the device for 12 – 24 months.
How do you eat with Transpalatal Arch?
Whilst getting used to your TPA, it is a good idea to cut all food into small bite-size pieces, as chewing can be difficult at first. Avoid eating chewy lollies and foods while you are wearing the TPA, such as chewing gum, toffees, red skins, etc.
Why does my TPA hurt?
Your back teeth may become sore from the TPA for the first few days. Also, your tongue will probably get sore and even get a little irritated at first. Use some wax behind your molar band to help eliminate the tongue irritation.
What retainer do you get after braces?
The first type is called a bonded retainer. It’s attached to your teeth after your braces are removed to keep them in place for the first few months after treatment. A bonded retainer is recommended if you need to wear your retainer at all times as a follow-up to orthodontic treatment.
What is a Nance appliance?
The Nance Appliance is used to prevent upper molars from rotating or moving forward after extraction of primary teeth or during your orthodontic treatment. Some patients wear the Nance Appliance while they are awaiting their permanent bicuspids or premolars to erupt into place.
What are Transpalatal arches used for?
Transpalatal Arches for Molar Rotation and/or Distalization Transpalatal arches can be an effective adjunct for gaining space in the maxillary dental arch in terms of molar derotation or distalization. They are particularly useful when the need for derotation is the same on both sides of the dental arch.
Can Transpalatal Arch be used as a slow maxillary expansion appliance?
Transpalatal arch (TPA) is a commonly used appliance for anchorage in maxillary arch and for controlling the position of molars. In this present article, we have described a simple modification of the commonly used TPA that can also function as a slow maxillary expansion appliance.
What happens to the Transpalatal Arch when the second premolar is extracted?
If the maxillary second premolar is extracted, the transpalatal arch can be connected to the maxillary molars to support retraction of the maxillary anterior segment. Once the anterior segment is retracted into a neutral occlusion, a new transpalatal arch can be connected to the first premolars to start mesialization of the molars (Fig. 7.7).
Where is the central loop on the Transpalatal Arch?
The transpalatal arch was designed such that the central loop was located approximately 5 mm from the palatal tissue and 10 mm anterior to the midpalatal miniscrew to provide anchorage for the retraction of anterior teeth and to apply intrusive forces on the upper posterior teeth.