Minimally Invasive Separation of Mid-Palatal Suture Using Piezosurgery: A Novel Type of SARME Assisting Maxillary Expansion in Adults

Maxillary transverse deficiency (MTD), a common malocclusion, is typically treated with maxillary expansion. However, adult MTD patients often present challenges for skeletal expansion due to matured mid-palatal sutures. To address this, the authors developed a minimally invasive surgical technique utilizing piezosurgery to separate the mid-palatal suture and buccal/lingual bone sutures in the anterior maxilla. Then, the Hyrax expander was used for rapid maxillary expansion (RME). This approach effectively achieves maxillary skeletal expansion with successful mid-palatal suture opening, offering a reliable solution for adult MTD.