So around 6 or 7 weeks ago I began chewing gum (I quit smoking, non nicotine just normal gum helped with the cravings greatly).
(Gif is 'after')
Anyways I noticed some progress, my jaw seemed a little stronger, after only a week or two. I didn't think it was larger but I thought I might as well try and see if I can increase the size of it.
So I developed a routine out of it. I will be posting advice + a proggy ITT.
I have not yet moved onto Mastic gum. This was done with chewing gum.
I will be ordering some Mastic shortly. I am able to really get my jaw sore as fuck with normal chewing gum on my routine still.
I have made a lot of progress in 7 weeks.
Disclaimers-
I was cutting at a large deficit with modified PSMF with some fat in there as well.
I was still able to add a significant amount of muscle to my jaw. If you are bulking or matiencnece, you can expect even greater progress in the same amount of time.
In addition: my bf% is still relatively high (hence the large deficit and PMSF!) . 14%-15%. Even with that fat on my face, you can still obviously see the progress.
If you are lean you will see BETTER progress than that in the same time, cutting, bulking, whatever.
The before photo was also taken at around 15% bodyfat.
Routine:
First of all, Chew with FULL ROM. I want you to bring you jaw up and down as high as you can every 'rep'. That's one chew.
Try to be careful that you don't favor one side too much and lopside your jaw. I did so and it wasn't too hard to correct, I just ignored one side for a week. They seem pretty even now.
Week One: Take one single piece of gum. Put it in your mouth. Drink some water. Drinking water will dry the gum out, adding some resistance.
To failure. Just chew. Until your shit is so tired you can't stand it anymore.
The more 'sets' of this you do per day, the more progress you will see. I wasn't that strict with training and I still saw a lot of progress. Volume is key.