Hi all, I've been spending all my time recently trying to figure out my asymmetry of my face. And the causes.

Basically my left side has a wider jaw and my chin is shifted to the right, alongside with my mouth. I am missing my left upper central incisor since the age of 12 (I fell playing football and the tooth completely came off), and been wearing a prosthesis from the age of 15. Throughout the age of 12-15 I had worn my own fallen tooth, but it started wearing and rotting away as the bone had rejected it (reason why I started wearing a prosthesis).

I have always been a nervous and anxious person and as a result I constantly bite my nails. I have never been able to quit not even now, at the age of 19. 

I have always had a symmetrical face when I was young. However, looking at past pictures, asymmetry became obvious right when I had my rotting tooth pulled off and my prosthesis given. 

Due to my missing tooth, I started biting my nails off with my right central incisors, as the prosthesis tooth wouldn't do the job. I noticed now that, as I bite my nails with my right incisors, I tend to shift my lower jaw forwards and to the right. I hypothesise that, my facial asymmetry might have been due to the left lateral and medial pterygoid muscles becoming more tense as they were worked out more than the right ones. Consequently, this may have caused my jaw to:

1.shift right; and:

2.Raise higher on my left side (indeed true, as I checked). This then caused my left bite to come before my right bite (slightly), causing the masseter muscle to be more worked out than the right hand side one: this is why my left jaw is wider. 

I can also notice this when I try shifting my jaw to the right, its easy and somehow more natural. Whereas if I try shifting left, I do so to a lesser extent. Again, my assumption is my lateral and medial Pterygoid muscles are more worked out on my left side, making it easier to shift right. 

Correct me if I'm wrong, cause this is only based on assumptions I made from reading scientific articles.

So, my question is first off, do my assumptions make sense? and if so, can I revert this if I stop biting my nails (+some form of therapy or exercise)?

This has been an issue to me for a long time, and I've only started to be obsessed as I thought it may have a solution. 

The only solutions I've found online are lots of doctors suggesting surgery and a few videos of people massaging their face. 

Any help would be very much appreciated as this is something which has been really bothering me.