How to Prevent Tooth Decay in Children?

Dr. Gordon Tam • June 26, 2024

Many people pay more attention to adult teeth as the adult teeth will accompany us throughout the majority of our lifespan. While this is true, it is also very important to pay special attention to our baby teeth.

Toddlers who are teething at this stage, are also starting to take in semi-solids and converting from liquid to solid food. Our baby teeth play a vital role here to chew well so that the food get digested properly, and absorb nutrients for growth.

 

What causes tooth decay?

 

Tooth decay happens to children as well as adults.


To understand more about what causes tooth decay, we need to know how a tooth structure is like and how it gets the destruction from external factors. 


Tooth decay typically starts from the outer layer of the tooth (enamel). It is caused by bacteria and other things such as food that contains sugar that are left on the teeth. For a child, the most common ‘sugars’ are milk, sugary drinks, fruit juices, cereals and bread.


As our mouths naturally have bacteria, these bacteria will change the nature of the remnant of food trapped in between our teeth to produce acid. With the combination of bacteria, foo remnants, acid and our own saliva, a substance known as plaque is formed on our teeth. Over a period of time, the acid will corrode our tooth structure, mainly our enamel, resulting in tooth decay.


A child starts to change their baby teeth to adult teeth around 6 to 7 years old, the adult (permanent) teeth will accompany them for the rest of their life (a good 70 - 90% of their lifespan), it is very important to cultivate good oral hygiene. This starts from a proper habit to maintain their baby teeth healthy till the teeth-changing age.

 

Every tooth typically has 4 main parts

 

  1. Enamel - this is the outer layer (shell) of the tooth and it is also the hardest material in our human body
  2. Dentine - this is the second inner layer where the main part of the tooth is. It is the largest dental tissue
  3. Pulp - this is the soft tissue of the inner side of the tooth where nerves, and blood supply is. It has the ability to produce dentin.
  4. Root - this the important part of the tooth that helps to secure the tooth to our jaw

How does night milk causes tooth decay?

Milk contains high sugar contents. For children who have the habit of drinking milk in the middle of the night, they do not get the chance to rinse off the milk that remain in their mouths. In some cases, these children go to sleep with a milk bottle in their mouth, soaking their teeth in the milk throughout the night!

This is almost the same as sucking on a lollipop for a long period of time. We need a substantial time to dissolve a lollipop, that’s a lot of sugar-soaking time.

Symptoms of tooth decay in a child

These are some of the observations you may find when a child has tooth decay.

  • White spots appearing on the tooth surface. These white spots are a good indication that the enamel layer is breaking down. It is an early sign of tooth decay.
  • Discoloration of the affected area, tooth surface turning light brown
  • The cavity has gotten deeper as the affected area turns darker in brown or even to black
  • Sensitivity or pain reaction to temperature

The symptoms vary from child to child. Not every child will feel the same sensitivity, discomfort or react to the decay. Some children won’t even feel anything until their visit to the dentist. It is important to maintain good daily oral habits and routine dental checkups.

At Smile Design Dental Practice, we help you to monitor you and your child’s oral conditions. On every routine dental visit, our dentist will take intra-oral photographs to monitor the teeth conditions. Through the comparisons from these photos from previous and current visit, we can propose appropriate treatment for the child.

How do we prevent it?

We need to first establish proper oral hygiene, cleaning and adopt healthy oral habits. Prevention is always better than cure. We have also identified several common causes of tooth decay in a child.

For those children who already have early signs of tooth decay, parents have to identify the source of the problem, such as…

  1. Lack of proper brushing habits
  2. Falling asleep while drinking milk
  3. Drinking milk in the middle of the night (does not drink water to rinse off milk remnants)
  4. Daily diet - frequent consumption of juices and sugary drinks, candies and chocolate

Maintenance and prevention

  1. Cultivate good oral habits
  2. Avoid falling asleep with milk throughout the night
  3. Reduce consumption of sugary drinks,candies (especially lollipops) and chocolate
  4. Use cups instead of bottles to drink
  5. Go for regular dental checkup

We encourage all our patients including young children to maintain regular dental checkups. Dental issues can be easily picked up during the dental visits. It is better to solve dental issues while they are in the early stage, your child can possibly avoid feeling pain or discomfort and higher cost of treatments.

For more information and consultation, please contact Smile Design Dental Practice at +65 6463 8588.


To serve you better, we are available by Appointment Only

Please contact us to schedule for an appointment.

By Gordon Tam July 29, 2025
Your smile is one of the first things people notice about you — but more importantly, it reflects your overall health and wellbeing. Whether you want to restore your dental health after years of neglect or enhance your smile's appearance, you’re not alone. Many people feel self-conscious about their teeth, but the good news is that modern dentistry offers numerous ways to help you regain your confidence and maintain a healthy, beautiful smile for years to come.
By Gordon Tam July 25, 2025
Most people are aware that they should visit the dentist regularly, but many underestimate the importance of these routine visits. A dental checkup is not just about keeping your smile looking good—it’s essential to maintaining your overall health and well-being. Here’s why you shouldn’t skip your regular dental appointments.
By Gordon Tam July 19, 2025
Most people expect dental problems to improve after treatment. A filling, a crown, a root canal — these are meant to solve the issue and relieve discomfort. But sometimes, a dental problem lingers despite repeated visits to the dentist. If you are stuck with persistent pain, sensitivity, or discomfort that never seems to resolve, you are not alone, and you do have options.
By Gordon Tam July 11, 2025
Facing a recommendation for complex dental treatment—such as root canal therapy, dental implants, orthodontics, or full-mouth rehabilitation—can be overwhelming. These procedures often involve significant costs, time, and long-term impact on your oral health. It is natural to feel uncertain or even skeptical. In such situations, seeking a second opinion is a wise and responsible decision.
By Gordon Tam July 4, 2025
Everyone notices a great smile. It radiates confidence, leaves a lasting impression, and can even change how you feel about yourself. The best part? You don’t have to be a celebrity to achieve one. With proper care and a few lifestyle changes, anyone can enhance their smile. Here’s a guide to some effective ways to improve your smile! 
By Gordon Tam June 18, 2025
Good oral health goes beyond just a white smile. Healthy teeth and gums are essential for overall well-being, as they help prevent tooth loss, gum disease, and even systemic issues such as heart disease.
By Gordon Tam June 10, 2025
Many people think routine dental appointments are merely about cleaning teeth. You are only half right!
By Dr Gordon Tam March 19, 2025
Almost all of us needed a dental filling at some point of time in our lives. A dental filling is a restoration work done to our tooth that might have chipped off or decay. There are several choices of materials used to replace the partial missing tooth structure. Dental fillings will deteriorate over time, due to wear and tear, bad habits, or even simply they were not properly done in the first place.
By Dr Gordon Tam August 6, 2024
What is a dental treatment plan? A dental treatment plan is a detailed plan that the dentist documents his findings after an oral examination. It reflects the current condition of each tooth that may require treatment. This treatment plan gives you a clear idea of the ideal and recommended treatment options and treatment fees. You will also know how long each treatment will take so that you can better plan your dental treatments into your schedule. In Smile Design Dental Practice, we conduct a thorough tooth-by-tooth examination, taking photographs with our intraoral camera and microscope. After the examination and dental charting, our dentists will share with you your current oral condition and customize a treatment plan. We listen to your needs and concerns, understand your considerations on time and budget. The treatment plan is customized to suit your considerations.
By Gordon Tam June 24, 2024
Here are some professional advices that may help you to reduce plaque build up around your teeth and gum. 1. Brush Twice a Day It is crucial to brush your teeth twice daily to keep your oral health in check, using a soft-bristle toothbrush or a soft-bristle electric toothbrush can aid you to clean your teeth and gums effectively. By spending at least two to three minutes brushing each time ensures you cover all surfaces of your teeth. This helps to remove food particles and prevent plaque buildup. 2. Floss Daily Flossing is just as important as brushing, as it removes plaque and food debris located between your teeth and under the gum line where your toothbrush can’t access efficiently. You may choose to use normal floss or a water flosser at least once a day to keep your gums healthy and prevent cavities from forming between your teeth. 3. Use Antibacterial Mouthwash Rinsing your mouth with an antibacterial mouthwash can help reduce the chance of that can bacteria growth that cause plaque and gum disease. Use a mouthwash after brushing and flossing to give your mouth an extra level of cleanness. This not only freshens your breath but also helps to maintain a healthy oral environment. 4. Clean after eating ’sticky foods’ Avoiding sugary, starchy, and sticky foods is crucial especially when preventing plaque buildup. For instance, candy, pastries and toffee-like texture food can stick to your teeth and promote the growth of plaque-causing bacteria. While these food are our favourite indulgence, rinse your mouth or brush your teeth after eating. 5. Stay Hydrated Drinking plenty of water throughout the day to keep yourself hydrated is important, just like our saliva, which naturally cleanses your mouth and neutralises acids produced by bacteria. Water and our saliva also helps to wash away food particles and reduce the risk of tooth decay and plaque buildup. 6. Avoid Smoking Smoking can significantly harm our general health and also our dental health. It will lead to plaque and tartar buildup, and even gum disease. 7. Clean Oral Appliances Regularly If you wear dentures, retainers, or other oral appliances, keeping them clean is essential to prevent bacteria buildup. Always remember to keep them clean by rinsing and brushing them before and after usage 8. Regular Dental Visits Finally, visit your dentist regularly—typically every four to six months for maintenance of oral health. Dentists have specialised tools to remove stubborn plaque and tartar that you can't reach at home, and they can detect any potential issues early before they become serious problems. By incorporating these tips into your daily routine and seeking regular professional care, you can maintain a healthy, beautiful smile for years to come. At Smile Design Dental Practice, we allocate sufficient time for each patient, conducting thorough tooth-by-tooth examination, taking radiographs to check between teeth, and assessing gum health. This comprehensive approach allows us to identify your dental issues accurately and customise a treatment plan tailored to your needs. For more information and consultation, please contact Smile Design Dental Practice at +65 6463 8588. To serve you better, we are available by Appointment Only . Please contact us to schedule for an appointment.
Show More