Abstract
Growth in maxilla occurs either by apposition of bone at the suture or by surface remodeling . Many studies have reported that by the late teens, interdigitation and areas of bony bridging across the suture develop to the point that maxillary expansion becomes impossible. Conventional expanders were effective in children and young adolescents but when used during late adolescent and adulthood it caused more of dental tipping and less to no skeletal expansion. The inclusion of mini screws in conventional rapid palatal expanders converts it into a MARPE appliance. The Mini screw warrants greater skeletal expansion, keeping the dental expansion and associated unwanted effects to a minimum. The objective of this case report is to show the correction of bilateral posterior crossbite in an adult patient using Miniscrew Assisted Rapid Palatal expansion followed by fixed orthodontic appliance therapy. Keywords: MARPE; Rapid palatal expansion; Maxillary skeletal expansion
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