Hello,
Thank you for your query at DoctorSpring.com
I have read your query with diligence. It looks that you had dental infection and associated knee problem for which your dentist extracted your tooth.For major knee surgeries we advice treatment of any infection including dental urinary or others.It is wise decision to remove affected teeth before surgery .As your all reports are normal so it is safe to have ACL surgery at this time.
Hope this will help you.
Feel free to discuss further.