Is swelling after a surgical intervention dangerous?

No, it’s not. Swelling is a normal occurrence after any surgical intervention (apicoectomy, surgical tooth extraction, implant placement, bone grafting) and is a tissue response to trauma. Such swelling is called “cold” swelling, it does not represent an infection, nor does it require treatment. It spontaneously subsides after 4 to 7 days. It is common practice to administer certain medications against swelling before and after surgical intervention, which suppresses it to some extent. You should keep swelling in mind when planning your social activities. But there is no need to worry about this type of swelling because it is health-wise harmless.