Minimally invasive surgical protocol for miniscrew-assisted palatal expansion (MISMARPE) in orthognathic surgery: a case report

Background: Miniscrew-Assisted Rapid Palatal Expansion (MARPE) has emerged as a promising method for non-surgical maxillary expansion in young adults. However, in skeletally mature patients undergoing orthognathic surgery, the resistance of the midpalatal suture often requires more invasive procedures like SARPE. Case report: A skeletally mature patient with transverse maxillary deficiency was scheduled for orthognathic surgery. The patient presented with maxillary constriction and dental crowding, requiring transverse expansion as part of the treatment plan. A modified, minimally invasive MARPE protocol adapted to be used with orthognathic surgery, termed MISMARPE, was performed. Conclusion: MISMARPE offers a viable alternative to SARPE in select orthognathic surgery cases, allowing for skeletal expansion with less invasiveness. This technique may represent a promising adjunct in managing transverse maxillary deficiency in adult patients.