One of my Front Tooth is Slightly Pushed Front Than the Other, What Can I Do?

Dear Crowded,   Your best route is to see an orthodontist to determine a  treatment plan.  Pulling teeth alone will not straighten you teeth and with all the options there are in modern orthodontics you may not need to pull perfectly healthy teeth   I hope...

Unfortunately enamel does not regrow, It is important that you go to a good hygienist, some hygienist especially in high volume dental clinic do not do the cleaning appropriately and can cause you to lose enamel, I am not saying this is the case but just keep this in mind.

Yup...classic injection hematoma.  Your blood vessels were disturbed and damaged during your numbing shots.  It's not common, but happens to the best dentists in the world.  Managing these trauma is a headache.  Pressure and time is the best two medicines.  Antibiotics...

I've had this same exact complaint from patients in the past.  They had so much calculus build up which covered up their spaces between the teeth and recessed gums that once they got their teeth thoroughly cleaned, they blame the hygienist that she took their tooth structure or gum tissues...

 The best option for you will be to straighten your teeth with clear braces (Invisalign) of braces with an orthodontist. This will help with the aligment and will help tremendously with biting into your lip. The size of your canine is fine , the angle of the tooth because is misaligned...

Based on your photo, it appears that you have what is technically called a Class II, Division 2 malocclusion. That is generally where your two front teeth "slant in" and the teeth on the sides of these, the lateral incisors, tend to "slant out." While I understand your concerns with aesthetics...