Tooth and Mouth Problems

Hello , Can some tell what this is , I accidentally bite that area and this white skin spot is there. Very slight tingling sensation there on touching. Attaching pics for your reference.

I'm having a burning sensation in my mouth from past 8-9 days along with redness plus very tiny blisters under my lip, tongue and inner cheeks. Please help me with the medicine, solution and cause of it. Can it happen because of acidity?

Hello It's been 3 days since I'm using hexidine mouthwash and metrohex plus gel twice a day on my gums. I was prescribed these after manual scaling. But yesterday I noticed an ulcer on my gum. I've shared the image. Could it be the side effect of medicine? Should I stop or reduce the usage of either mouthwash or gel? Could it be and infection? Is it anything serious? I'm very worried. I've never had an ulcer on my gum. Please suggest what to do.

I had dental bridge fixed three days ago.. I have discomfort and mild pain ... pain while biting or chewing.

I had dental bridge fixed three days ago .. I feel discomfort and pain around the area.. I feel other side biting is not good.. dental bridge is big I feel

My daughter who will turn 5 in late Nov this year was having a loose tooth (lower incisor) since 4-5 days and it came out today while she was eating. Is it normal for a child of her age to start shedding milk teeth coz it was definitely not due to trauma. She is otherwise healthy and has normal weight and height.

I just wanted to know what is the actual treatment cost of yellow teeth to white teeth and how many days it takes for treatment.

I want to whiten teeth how to whiten teeth naturally at home if some chemical needed also tell safe and effective and tell good cream for whitening

I had done my rct treatment for 2- 3 months but the part where rct is done, the cheek on that side shows continue swelling. I have no pain, irritation but mild swelling on that part continues. Now it makes me feel that my face is becoming asymmetrical. Pls find a solution to this

Is it painful to conduct left root infection  after rct treatment. Is it painful? My rct is done after that again treatment of that part is it painful