CT Analysis of Nasal Volume Changes after Surgically-assisted Rapid Maxillary Expansion

Abstract

As most of the air we breathe passes the lower nasal floor, an improvement in nasal breathing is likely.

Enlargement of the Pharynx Resulting From Surgically Assisted Rapid Maxillary Expansion

“…The decrease in nasal resistance and the expansion of the pharyngeal lumen, especially in the LL, might help prevent OSAS. 29,30 Regarding the dental results obtained in the present study, an expansion of 0.65 cm was observed between the first premolars, whereas the first molar region expansion was 0.57 cm. Similar mean values have been reported in other studies, 31,32 which shows that the amount of expansion is within the normal range and that such expansion does not need to be extreme to promote the changes obtained in the pharynx.…”

Short-term and long-term stability of surgically assisted rapid palatal expansion revisited

“…Recent computed tomography studies found skeletal expansion from 5 to 7 mm with a tooth-borne device. 16–19 Koudstaal et al, 8 in a prospective randomized patient trial comparing bone-borne and tooth-borne devices, obtained 3.1 ± 2.0 mm of expansion at the alveolar crest and 2.6 ± 1.8 mm at the nasal level, and found no difference in the efficacy of the 2 devices.…”

Three-dimensional evaluation of upper airway following rapid maxillary expansion: A CBCT study

“…7 The effects of RME over nasal size and volume have been researched with various procedures such as lateral and anteroposterior radiographs, [8][9][10][11][12] acoustic rhinometric methods [13][14][15][16] and multislice computed tomography. [17][18][19][20] Recent advances in cone beam computed tomography (CBCT) and related software have made it possible to visualize and measure the upper airway as a solid structure. Lower costs, lower radiation dose, shorter scanning time, and overall accuracy have made CBCT technology a preferred method to assess the airway.…”