Space Maintainers and Apexification When a primary tooth is lost prematurely, space maintainers are essential to prevent shifting of adjacent teeth and ensure proper eruption of permanent teeth. Dr. Hittu Agarwal customizes space maintainers to fit comfortably and function efficiently. Additionally, in cases where a child’s tooth root has not fully developed, apexification procedures help stimulate root growth and closure. These treatments prevent long-term dental issues, ensuring proper alignment and function of the child’s teeth.