The Median Palatine Suture: A Comprehensive Review With Clinical Considerations

The median palatine suture (MPS) is an articulation in the midsagittal plane in the oral cavity's roof that divides the palate into two halves. Its anterior and posterior segments are formed by the fusion of the maxillary palatine processes and the horizontal plates of the palatine bones, respectively. This review synthesizes the classical understanding of the MPS with recent multidisciplinary advancements to provide a contemporary and holistic perspective. We delve into its comparative anatomy and evolutionary origins, and further detail the molecular and cellular mechanisms governing its development, maturation, and response to mechanical force. The discussion extends to modern imaging modalities for assessing sutural patency and maturation, encompassing cone-beam computed tomography (CBCT), magnetic resonance imaging (MRI), and the application of artificial intelligence (AI) for automated analysis. Clinically, the MPS is significant across diverse fields; its role is discussed in the context of pathology, such as cleft palate, its utility in forensic age estimation, and its central importance in contemporary orthodontic and surgical interventions, notably microimplant-assisted rapid palatal expansion (MARPE). By consolidating the current state of knowledge and identifying key directions for future research, this review serves as an essential resource for clinicians and researchers engaged in maxillofacial surgery, orthodontics, and forensic science.