2012年10月9日 · A Rapid Palatal Expander (RPE) is an upper appliance that places pressure on the upper jaw (maxilla) by turning a midline screw. The pressure separates the mid palatal suture thus making the maxilla wider, which can correct crossbites and creat space. RPEs are used often to correct posterior crossbites.

The Rapid Palatal Expander (RPE) is an essential orthodontic appliance typically utilized during phase I treatment to effectively widen the arch, either prior to or concurrently with fixed orthodontic treatment.

Dr Amanda explains her criteria for appliance timing based on the eruption of key permanent teeth. She then compares the pros and cons of removable versus fixed expanders, highlighting that fixed appliances have better compliance and retention, but removable ones have lower upfront lab fees.

2024年9月19日 · RPEs are a game-changer in orthodontics, addressing various dental issues by creating additional space and width in the mouth. They’re particularly effective for children and teens, as their jaw bones are still developing. From fixed Hyrax expanders to removable options, RPEs come in different types to suit various orthodontic needs.

The designs are used to correct cross-bites, narrow arches and crowding. The fixed expanders utilize some mechanism of force (expansion screws, self-activating spring or wire activation) for development of the arch. These fixed designs require minimal patient compliance and provide the doctor with total control during active orthodontic treatment.

2023年3月21日 · There are two main types of palatal expanders: the rapid palatal expander (RPE) and the hyrax. Both work by applying pressure to the bones in the palate, gradually widening the arch of the palate. The RPE is activated by a key that is turned twice a day.

Periodic occlusal radiographs indicated the progressive separation of the mid-palatal suture. The bonded Hyrax RPE was found to be very versatile and effective in addressing the transverse discrepancy of the maxillary arch and served as an important adjuvant to fixed appliance therapy. References. 1. Spolyar JL.

Another important element in preventing relapse of maxillary transverse expansion is the design of the rapid palatal expander (RPE). The most popular fixed RPEs with central jackscrews are the Haas appliance, a tissue-borne device with acrylic pads contacting the palate, and the Hyrax, * an entirely toothborne metal framework that stands away ...

2019年11月25日 · A Rapid Palate Expander (RPE) is a fixed appliance which which is cemented to the upper molars and gradually widens the palate. There is a screw in the center of the device. When you insert the expander key into the screw and turn …

Rapid palatal expansion (RPE) is an established method and highly used to correct the maxillary transverse deficiency and posterior crossbite in the primary and mixed dentition. 1 Those alterations may be caused by genetic factors, environmental factors, or both. 2, 3 In the mixed dentition, RPE, besides correcting the transversal deficiency, pr...