I don't think it is really known for sure. If it pulls toxins, can it disrupt a clot that is healing? Could it help speed healing by pulling toxins?
You might want to scan the posts below a bit "dental developements and op", even though your situation is not the same, it could be helpful in making your choice.
So much of this is trial and error and has to be the individual choice of each one based on our own personal experiences and by the benefit of what others have experienced. There is so little scientific evidence to refer to.
the thing you have to watch out for is not the oil but the physical action and the suction that is created. if you pull, i would simply swish gently and not create any negative pressure in the mouth for a few days until the healing has begun in earnest.
the lit says 15-20 minutes, but some people take longer, some people less. do it until the oil becomes like water in your mouth. it will thicken up before it goes completely watery. that is when it is full and can hold no more gunk.
You know, sometimes when I "pull" I forget to do just that...I will be monkeying around the kitchen and chopping veggies or something and realize I have had the oil in my mouth without much movement going on. Howeeeever, perhaps because I am usually prepping a salad and the ol' saliva glands are going, I have noticed that often the oil will go very thin suddenly when I am not doing a darned thing with it. So it probably would be okay to carry the oil in your mouth with very slight and occasional movement - possibly avoiding the suction type maneuvers entirely and still reap the benefits as far as getting out the toxins.