Maxillary deficiency in the transverse dimension is a common problem children. The conventional management of such malocclusion with rapid maxillary expansion. beneficial effects an orthodontic therapy are explained detail literature. But there also negative Thus, improvements methods expansion has led to discovery miniscrew assisted palatal supported by mini implants and thus enable better ske...

OBJECTIVE To prospectively measure occlusal changes in mixed dentition patients who underwent a standardized early expansion protocol. MATERIALS AND METHODS The treatment sample consisted of 500 patients who were assigned to three groups according to molar relationship: Class I (n = 204), end-to-end (n = 166), and Class II (n = 130). All patients were treated with a bonded rapid maxillary exp...

The effect of rapid maxillary expansion on the mandibular intercanine and intermolar widths during treatment and its stability after retention was studied. In addition, the relationships between the interarch change and the facial types and ages of the subjects of the sample were evaluated. The sample consisted of 17 cases for the study of intercanine width, and 22 nonextraction cases for the s...

BACKGROUND Orthodontic palatal expansion appliances have been widely used with satisfactory and, most often, predictable clinical results. Recently, clinicians have successfully utilized micro-implants with palatal expander designs to work as anchors to the palate to achieve more efficient skeletal expansion and to decrease undesired dental effects. The purpose of the study was to use finite el...

OBJECTIVE The purpose of this study was to investigate the effects of a newly developed rapid maxillary expansion screw-the memory screw-over 6 months. METHODS Five subjects, aged between 11.7 and 13.75 years, were enrolled in this study. All subjects underwent placement of a maxillary expansion appliance containing superelastic nickel-titanium open-coil springs in its screw bed. The parents ...