The force required to separate the mid-palatal suture during adolescence is approximately 2000 gm due to increased interdigitation and ossification of the suture with age. By adolescence, the suture becomes more rigid, necessitating greater force to achieve expansion compared to childhood. This value guides clinicians in applying appropriate orthopedic forces during rapid maxillary expansion (RME) to avoid complications such as suture fractures or dental tipping. Understanding this threshold is essential for effective orthopedic management of maxillary deficiency in adolescent patients.

Reference: Contemporary Orthodontics, 6th Edition.