Incredibly easy. When you visit our Union, NJ dental office, we can clean your teeth. Afterwards, we will apply a gel to the surface of your teeth and let it dry. Then, we will rinse and dry your tooth again before finally placing the dental sealants. The sealant is literally painted onto the tooth and sometimes dried with a special dental light. The process only takes a couple of minutes per tooth and it is so easy that our patients are usually surprised by how quickly it is done.