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A palatal expander Upper and lower jaw functional expanders. A palatal expander is a device in the field of orthodontics which is used to widen the upper jaw [1] so that the bottom and upper teeth will fit together better. [2] [3] This is a common orthodontic procedure. The use of an expander is most common in children and adolescents 8–18 ...
Tooth supported expanders allow the forces to be applied directly to the teeth of maxillary arch instead of the tissue. The most common tooth-borne expander is known as the Hyrax (hygienic rapid expander) or Biedermann appliance.
SARPE is performed to address the transverse dimension changes in a patient. Sometimes this surgery is followed by Le Fort 1 in a second surgery to address the vertical and the anterior-posterior changes. Between the two surgeries, a patient's constricted maxillary arch is expanded with the rapid maxillary expander device placed in the maxilla.
In the Anterior-Posterior dimension, appliances such as Class II and Class III are used. Appliances used in transverse dimension are utilized to expand either the maxillary or the mandibular arch. Appliances used in the vertical dimension are used to correct open or deep bite. [3] [4]
Multiple appliances and accessories are typically used along with the headgear, such as: power chains, coil springs, twin blocks, plates or retainers, facemasks, a headgear helmet (a headgear helmet is a cervical headgear with a cap or rigid helmet that covers the entire head), lip bumpers, palate expanders, elastics, bionaters, Herbst ...
However, many other studies have showed that TPA cannot provide absolute anchorage to prevent mesial movement of the posterior molars. Baccetti et al. (2011) showed that the TPA could be used in the absence of Rapid Maxillary Expander. In these cases, the patients have palatally displaced canine teeth which do not require expansion. [3]
A palatal lift prosthesis is a prosthesis that addresses a condition referred to as palatopharyngeal incompetence.Palatopharyngeal incompetence broadly refers to a muscular inability to sufficiently close the port between the nasopharynx and oropharynx during speech and/or swallowing.
Inflammatory papillary hyperplasia almost exclusively involves the hard palate, specifically the vault of the palate. Extension of the lesion to the mucosa of the residual ridges have also been observed. 11% to 13.9% of patients who wear maxillary complete dentures with complete palatal coverage has been reported to have IPH. [22]