The delayed growth of a child’s incisors may be due to pulp inflammation and root extrusion. 1. Inflammation of pulp: Inflammation of pulp may lead to gradual shrinkage of the tooth root, or even destroy the normal development of tooth germs, which leads to slow growth of the new incisors, manifesting as delayed growth. 2. Roots are extruded: If there are supernumerary teeth or calculus in the alveolar bone of the incisors, the roots of the teeth will be extruded, resulting in the roots not being able to erupt normally, which will cause the new incisors to be slow to grow. There may be other reasons why your child’s incisors are falling out and not growing, so we recommend that you go to the hospital in time to have a complete examination to determine the cause of the problem, and then give targeted treatment under the guidance of the doctor.