After replanting an avulsed permanent tooth with a normal PDL and no alveolar fracture, the recommended splint is:

A flexible/semi-rigid splint for about 2 weeks allows physiologic movement that favors PDL healing and reduces replacement resorption and ankylosis. Alveolar or root fractures need longer/rigid splinting (up to about 4 weeks to 4 months).Other options: Prolonged rigid splinting promotes ankylosis and replacement resorption; no splint risks displacement and loss.Key exam takeaway: Avulsion replantation gets a flexible splint for about 2 weeks; keep splinting short and flexible to protect the PDL.