They cannot be properly examined with just the naked eye. Your dentist will monitor the state of the sealants over the years and let you know if and when they should be redone. Longevity of sealants greatly depends upon eating habits. Cleaning of the teeth to be sealed. Application of the sealant material which quickly hardens.
Sealants can be very effective in preventing more costly dental procedures in the future.
It goes without saying that it can be a challenge when you begin to brush and floss your child's teeth. It is important that your child's first experiences with brushing and flossing are not only effective, but also, to the extent possible, a good experience. Although there are various possible postures in which you can brush your child's teeth, it is important that you find one which is comfortable and effective. Child's head on your lap. Child's body between your legs with head tilted back against your chest or arm.