Maxillary expansion thesis

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Class III malocclusion is one of the most difficult problems to treat in the mixed dentition. It has a multifactorial etiology involving both genetic and environmental causes. The dental and skeletal effects of maxillary protraction with a facemask are well documented in several studies. Although treatment in the late mixed or early permanent dentition can be successful, results are generally better in the deciduous or early mixed dentition. The following case shows early treatment of a young patient with severe sagittal and transverse discrepancy of the maxilla and mandible, using a facemask.
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Maxillary Expansion

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Maxillary Expansion Research Papers -

Objectives: To investigate whether any changes in nasal cavity dimensions or subjective report of nasal symptoms exist after rapid maxillary expansion using two types of expansion appliances, comparing results with an untreated control group. Methods: Subjects were randomly assigned into one of three groups: tooth-borne or bone-anchored expander or untreated control. Acoustic rhinometry was used to measure minimal cross-sectional area and volume of the nasal cavity over three timepionts for treatment subjects and two timepoints for control subjects, taken along with the NOSE Instrument survey. Results: No significant changes in nasal cavity dimension or subjective reports were found in subjects treated with tooth- or bone-anchored appliances compared to control subjects over three timepoints. In addition, non-significant correlation was observed between nasal airway dimensional change and subject symptoms. Conclusions: Rapid maxillary expansion does not result in change of i nasal airway dimensions or ii the sensation of nasal symptoms.
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OVERVIEW Anatomical Guidelines for Miniscrew Insertion: Palatal Sites

Donald J. Timms; The dawn of rapid maxillary expansion. Angle Orthod 1 June ; 69 3 : — The first report of lateral maxillary expansion by separation of the maxilla, written by Angell and published in , was discredited.
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