Back teeth do most of the chewing, and their biting surfaces are covered in pits and grooves called fissures. These grooves can be narrower than a toothbrush bristle, so plaque collects there easily. That’s why most decay in children’s teeth starts on these surfaces.
What is a fissure sealant?
A sealant is a thin, tooth-coloured or white coating that flows into the grooves and hardens. It creates a smooth surface that is easier to clean and harder for bacteria to settle on.
How is it placed?
- The tooth is cleaned and dried.
- A gentle solution prepares the surface so the sealant bonds well.
- The sealant is painted on and set with a blue curing light.
No injection or drilling is needed, and each tooth takes only a few minutes.
Who should get sealants?
Sealants are most often placed on the first adult molars, which appear around age six, and the second molars, around age twelve. Adults and teenagers with deep grooves or a history of decay may also benefit.
How long do they last?
Sealants can last several years, but they can wear or chip over time. Your dentist checks them at every check-up and repairs or replaces them if needed.
Sealants are not a replacement for brushing
Sealants protect the chewing surfaces, but not the spaces between teeth or along the gums. Brushing twice daily with fluoride toothpaste and cutting down on sugary snacks are still essential.
Ask about sealants at your child’s next visit with Dr H.B Mohamed. Most medical aids cover preventive treatments; see our fees and medical aid information.