gpx
Hi
When you had the tooth extracted, the periodontal ligament (which is the supporting tissues and ligaments) remained. You should received detailed post-operative instructions how to look after the extraction socket, like rinse your mouth with warm saline water 24hrs after the extraction, take analgesics if pain etc.
As long you don't have "dry socket" which is the infection of the socket then its fine to leave as it is. No need for concern :)