The child's teeth if it's broken has to be first assessed whether it's vital or non vital and age factor into consideration. After taking all parameters into account. If a Root Canal is contemplated we shall wait to see if the crown is fixed within a short time . The temporary crowns are not removable either and it's securely fixed in a way that it will be there till the permanent tooth erupt and restore the position.So you don't need to worry much.

Hey I a pediatric dentist ... d child need to b seen and an X-ray need to b taken for telling wts d best for d kid

there are many other options as well.. u can consult a pediatric dentist for this..there are options where we can take support of the remaining fractured tooth which is left

All the above mentioned questions can be answered after seeing a Radiograph of X-ray of that tooth. Treatment depends on extent of root resorption of that milk tooth, and developmental status of new tooth which has to replace affected milk tooth.

Hi..There is no chance of partial denture being swallowed.. it won't fracture if it is made up of a durable material, it won't be of much help for chewing  it is more for looks.It will not affect the eruption of permanant teeth. Kindly consult paediatric dentist for needful.