it is a good statement, but i have some points to mention about:
1- "It tugged at my heartstrings to imagine being unable to chew after struggling to find food" should be modified since "my heartstrings" looks exaggerated
2- you did mention why you like dentistry, but you need to explain more in details what happens exactly in your Neuro test and convincing reasons to withdraw from medical school
wish you all the best!