Hello. The yellow deposits are stains and calculus (tartar). Calculus or tartar is a form of hardened dental plaque. It is caused by precipitation of minerals from saliva and gingival crevicular fluid (GCF) in plaque on the teeth. Kindly undergo Scaling and Polishing treatment. Scaling is a professional teeth cleaning procedure, wherein the hardened dental calculus is removed. Scaling not only cleans your teeth, but also keeps your gums healthy and firm and improves the overall condition of your oral health. Kindly visit a dentist to undergo scaling and polishing

Definitely it is treatable. These yellow deposits are known as calculus that get deposited on teeth due to daily dietary items like tea, coffee, turmeric etc. You need to get a round of teeth cleaning or scaling done by a dentist.

It is very common for people to develop yellow flakes type deposits in teeth, which is actually plaque or it may be simple stains caused by foods having colors. You need not worry about it. But it should not be ignored also as ignorance may lead to more deposits and gum problems like bleeding or bad breadth.

Hello You don't need to worry so much about it. It is a  treatable condition and reversible. You need to be examined by a dentist first and undergo deep scaling and polishing. Rest of the details can be discussed after examining your oral cavity. Thank you and take care.