Tooth and Mouth Problems

I brush my teeth twice a day. Still plaque formation takes place. Also I am not allowed to floss as per my parents. Please advise.

I'm wearing braces for more than three years now and it is still not coming in shape. I really need them to work faster than this.

I have consulted many doctors but every doc has a different opinion so I'm quite confused.My main problem is with the upper jaw.The two front teeth are a bit protruding and overlapping other teeth. Even if my mouth is shut,these two teeth are visible slightly. I thought of going for braces but I'm concerned because my nose is sharp, and I don't like the flat mouth which results due to the braces. I was suggested to extract 4 wisdom teeth but I'm a bit reluctant as I don't want my jaw to lose the slight outward edge and become completely flat inwards. I have my x rays and would love to know the solution to my problem.Also,my main concern is front two teeth of upper jaw and if that problem is sorted,i can let the other teeth to be a bit crooked.What would be the best and less time consuming treatment??

Yesterday small bike accident happened so I faced injury on an upper limp of mouth! My skin buelged? do u have any remedy for my problem? for more please see below image

Whitening and softening of skin inside mouth and near the gums having after getting teeth cap 8 years ago.

Im having sores in my tongue for more than 6 months but dono why. One day i ate pineapple which was not skinned off properly. While eating some pieces torn my tongue nd my tongue was slightly bleeding. After that i had sores in my tongue and i thought it will go after 2 days but it is more than 8 months but they are still there.

As i have removed 4 teeth's for teeth alignment 3 years before and discontinued the treatment in the middle ,can i again continue the treatment of braces...

Done rootcanal treatment 6 months ago but sudden pain for the tooth which root canal treatment have done

How much time duration to take cover the teeth gap any fast treatment is available.front end some teeth has gap

My mouth smells very much and teeths are yellowish in color even i do brush twice a day... Help me out