Tooth and Mouth Problems

Please tell for how many days or months we have to wear clear plastic retainers after ortho treatment and does we have to clean it regularly and how

My father had a major aphthous ulcer which started healing within 2 weeks, now the area is reddish and the feeling in that area is that which we get after drinking soda/carbonated beverages. Shared before and after pictures of the ulcer. Should Rexadine- M gel be continued or will the reddish tinge and the feeling which we get in the mouth after drinking soda go away on its own? Please check the photos.

Sir/madam, I'm 25 years old male and I have suddenly developed a new problem of teeth stains from past 3 years. Before 3 years i wasn't having any problem of teeth stains. I don't consume any supplement tablet or syrup, I don't smoke and drink alcohol. I have a habit of drinking tea in the morning after breakfast and this habit is not new, I consume tea from past 10 years. I wasn't having any such staining issue before, but suddenly from past 3 years, stains will start to appear within a month after scaling is done. I'm confused and I'm not able to find out what is causing these stains. Can someone of you please help me get rid of the problem. I have attached my teeth pics for better understanding. Thank you.

Hello Doctor, My mother suffering from Teeth pain since 5 days and Gum swelling. She tried different home remedies like hot water with salt, mouth wash as well. No use. Please suggest me any tablet for her. Please help us bcoz in these covid time I can't take her to the hospital.

Since yesterday suddenly he got toothache , plz suggest me the medicine for him bcz he can't speak properly, too much pain.

What toothpaste i should use? What mouthwash would be best for plaque and tar.? Please give me good recommendation.

My gums will be bleeding most of the time and while brushing , bleeding is more. This was there from last couple of years which i ignored.What could be the reason for this?

I am very much tensed about black fungus. I noticed a small spot on my palate. Attached pictures. Please help. I never had covid. Not diabetic.

Which toothpaste is best for whitening of teeth and strong gums. Please suggest me. I have to make my teeth strong and white.

I have problem of swollen gum from last one day.No pain but feeling uncomfortable ...very mild pain on pressing below left jaw with finger..some food praticle got struck which I removed using wood stick ,liitle blood also seen during this.pls suggest