Hi.. Can understand your concern.. As per your complain maintaining a healthy oral cavity needs a regular care and cleanliness.. The best way to maintain healthy teeth is to brush your teeth with a proper brushing technique twice a day.. It should be followed by flossing after brushing to remove deposits or debris from accumulating in between the teeth and causing decay.. You should also gargle with antiseptic mouthwash twice a day especially after meals.. You should also eat more of chewable hard foods like carrot, apples etc as it has cleaning action on teeth.. As far as charcoal treatment and fluoride treatment is concerned they are not necessary to be done and are needed only if you want teeth whitening.. You can also go for teeth bleaching or using whitening strips but to go for all the treatments is not necessary.. Hope this information helps.. Thanks and regards.. Dr.Honey Nandwani Arora.