Sealants in Beverly Hills CA
Medically reviewed by Dr. Kayla Lebeau, DDS
Sealing the grooves where children get cavities
Look at the biting surface of a back molar and you will see deep, narrow grooves. Those grooves are narrower than a single toothbrush bristle. Food and bacteria get in; the bristle does not. That is why the large majority of decay in children happens on those surfaces and not anywhere else.
A sealant is a thin coating flowed into those grooves and set hard, so the surface becomes smooth and cleanable. It takes a few minutes per tooth, involves no drilling and no injection, and it is one of the few genuinely proven preventive measures in dentistry.
- TakesAbout 5 minutes per tooth
- NumbingNone needed
- DrillingNone
- Best ageAround age 6, again around 12
Worth asking about if
- Your child’s first adult molars have just come through, at about age six
- The second molars are arriving, around age twelve
- Your child has already had cavities in baby teeth
- The grooves in their molars are visibly deep or stained
- You are an adult with deep, unfilled grooves and a history of decay
Sealants work best when placed soon after a tooth erupts, before decay has started. A tooth that already has a cavity needs a filling instead.
How they are placed
- Checking the tooth firstA sealant must go over a sound surface. If there is decay already in the groove, sealing over it does not stop it. We check, and use X-rays where the grooves are stained or doubtful.
- Cleaning the surfaceThe grooves are cleaned thoroughly. Anything left behind is trapped under the sealant.
- Preparing the enamelA mild etching gel is applied for a few seconds and rinsed off. It creates a microscopically rough surface for the sealant to grip. It tastes slightly sour, and that is the worst part of the whole appointment.
- Keeping it dryThe tooth is isolated and kept dry with cotton and suction. Moisture is the main reason a sealant fails early, so this step is not rushed.
- Flowing it in and setting itThe liquid sealant runs into the grooves and is set hard with a blue light in a few seconds. Then we check the bite and your child eats normally straight away.
Why the grooves are the problem
Look at the biting surface of a back tooth and you will see a landscape of pits and fissures. Some of those grooves are narrower than a single toothbrush bristle and deeper than they look.
Bacteria and food get to the bottom. The bristle does not. That is the entire reason the great majority of childhood cavities occur on chewing surfaces rather than between teeth, and it is not a brushing-effort problem. It is a geometry problem.
A sealant fills those grooves with a thin flowable resin, turning a deep valley into a smooth surface a brush can actually clean.
Fluoride, by contrast, protects smooth surfaces well and pitted grooves much less. The two do different jobs, which is why we recommend both rather than choosing.
Afterwards
- Eat and drink immediately. There is no numbness and no waiting.
- They still need brushing. A sealant protects the grooves. It does nothing for the surfaces between teeth, which is why flossing still matters.
- We check them at every visit. Sealants wear and can chip. Topping one up is quick.
- Hard candy and ice are what break them. Ordinary food does not.
Are sealants safe?
Yes. They are a long-established preventive treatment recommended by dental and public health bodies internationally, and any trace exposure to compounds in the material is far lower than what is encountered in everyday food packaging.
How long do they last?
Several years, often five to ten. They wear gradually rather than fail suddenly, and are checked at every routine visit.
Does my child still need to brush?
Absolutely. Sealants cover roughly one surface of one type of tooth. Everything else is up to the brush and floss.
Can adults have them?
Yes, if the grooves are deep and sound. It is less common because adult molars that were going to decay usually have by then.
Does it hurt?
No. No injection, no drilling, nothing removed from the tooth. It is one of the few appointments children genuinely do not mind.
What if there is already decay in the groove?
Then it needs a small filling rather than a sealant. Sealing over active decay does not stop it progressing.
Book your child in while the molars are new
- (310) 860-6969Someone here answers.
- Request a visitWe will call to confirm.
- Pick a time onlineChoose your own slot.
The appointment, start to finish
No drilling, no injection, nothing removed. Most children are surprised it is over.
- The tooth is cleaned and dried
- A mild etching gel roughens the enamel microscopically so the resin grips. It tastes slightly sour and is rinsed off
- The tooth is dried again. Keeping it dry is the fussy part and the part that determines whether the sealant lasts
- The sealant is flowed into the grooves and set with a light
- The bite is checked and adjusted
A couple of minutes per tooth, and they can eat straight away. Timing matters more than most parents are told: the ideal window is soon after each set of molars arrives, around age six and again around twelve, before bacteria establish in the grooves.
Honest limits, and adults
Sealants are one of the best-evidenced preventive measures in dentistry, and they are not permanent. They wear and chip, particularly under heavy chewing, and need checking at every visit. We replace them when they start to go. A partly lost sealant is worse than none, because it shelters bacteria.
They protect grooves only. They do nothing between teeth, which is why flossing still matters, and they are not a substitute for reducing how often sugar is eaten.
Adults are candidates too, and are rarely offered them. If your molars have deep grooves that are still cavity-free, sealing them is inexpensive and sensible, particularly if you have a history of decay, a dry mouth from medication, or gum recession.
Most dental plans cover sealants for children, often to a specific age. We check yours and tell you before proceeding.