The important thing is to preserve the teeth as well as possible during the time they are out of place in the mouth. The collection and manipulation of the tooth should never be done in the root area, the washing will be done with serum or milk trying to reposition the tooth in the dental socket and go immediately to the pediatric dentist.
If this is not possible or you do not feel capable of doing it, the transfer of said tooth must be done urgently to the pediatric dentist, keeping it in a moist medium (serum, milk, and even, placed in the mouth itself under the tongue) never in dry (napkins, handkerchiefs ...). The specialist will be in charge of implementing the necessary measures to reduce the consequences of said injury. From the first hour after the tooth is out of the mouth, the prognosis worsens.