Hi Dear,
Welcome to Health Care Magic Team.
Understanding your concern.
The most probable cause of
numbness of the teeth is damage to the
nerve associated with those teeth .But most of the times this numbness happens to be temporary in case of trauma to the teeth as in your case .
I find sensitivity to be one of the symptom of
cracked tooth syndrome .Usually x-Rays don't give promising result in case of cracked tooth .So there is every possibility of having false negative result while using X-Rays in this case .
I would like you to visit your
dentist again and get it diagnosed properly . your doctor can use tooth slooth , fiber optic and cotton roll bite techniques for better diagnosis .
Once you will be diagnosed with cracked tooth syndrome .There will be many lines of treatment. you can have direct crown on tooth if pulp is not get effected yet. If pulp is already effected then
root canal treatment will be the option . sometimes the crack extends throughout the root into the bone then extraction of the tooth will be only option left.
Hope your concern has been resolved.
Best Wishes,
Dr. Harry Maheshwari