“It is a material that is applied to the deep sulcus on all sides of the tooth without damaging the tooth tissue. When it flows into and penetrates the sulcus, it hardens and forms a protective barrier over the sulcus, preventing bacteria and harmful substances from eroding the tooth. Why do I need to have a “sealant”? There are many tiny deep grooves on the newly erupted teeth of babies, which can easily deposit food and bacteria and cause tooth decay. By covering the sulcus on the tooth surface with the material of “sealant”, it can prevent the deposit of food and the invasion of bacteria from outside and prevent the tooth decay. When can a child have a “gutter closure”? The best time for “gully closure” is when the teeth are fully erupted and no decay has occurred. The baby molars are 3-4 years old, the first permanent molars are 6-7 years old and the second permanent molars are 12-13 years old. What is the procedure of “Closure”? Is it painful for the child? “No. The procedure is painless because it does not destroy the dental tissues and only seals the deep sockets. Will I not get cavities after having a “gully closure”? Of course not. If you don’t pay attention to your diet and brush your teeth, you will still get tooth decay. Therefore, parents should reduce the frequency of children’s eating, supervise children’s brushing in the morning and evening and check the effect of brushing, and help children brush their teeth if necessary to make sure the surface of teeth is smooth after brushing. It is recommended to use dental floss, which can effectively prevent the occurrence of adjacent surface caries. 1.”Gutter Closure” is only for the back teeth with deep sockets and no caries, you can bring your baby to do “Gutter Closure” when the crown of the back teeth is fully erupted. 2.Some cities have carried out the free “gutter closure” program for six-year-old teeth, parents can bring their children to the designated medical units for “gutter closure” according to the school arrangement. You can also come to Guangzhou Women’s and Children’s Medical Center for consultation. 3.Parents must remember that “gutter closure” is not a “magic tool” to prevent tooth decay! To have a good diet, brush your teeth well and have regular oral examination is the only way to have beautiful teeth! 4, “fluoride” treatment and “gully closure” are not the same, “fluoride” is to let the teeth improve “autoimmunity”, “gully closure” is not the same. “Fluoride” is to make the teeth improve their “autoimmunity” and “gutter closure” is to make the teeth wear a “small armor”. Both treatments are very suitable for babies and are very necessary. 5. Babies who have had their “gaps closed” need regular follow-ups. If the sealant falls off, it needs to be “sealed” again.