Introduction
Ever spotted little white or dark marks on your child’s teeth? A lot of parents think it is nothing, but those spots could actually be early signs of tooth cavities. Cavities can show up pretty fast in kids under six, and if they are left untreated, they can cause pain, infection, or even swelling.
So, why do baby teeth matter if they are just going to fall out anyway? Baby teeth help children chew food properly, learn to speak and keep space for adult teeth. If they get damaged or lost too early, it can cause eating difficulties, speech issues or crooked teeth later on. (2)
What really causes rotten teeth?
How does a tooth decay develop?
This image simplifies how tooth decay forms. The bacteria in the mouth feed on sugary and sticky foods like cake, donuts, and ice cream that stick on tooth surfaces and produce acid.
The acid attacks the tooth enamel (outer layer of a tooth), and over time, creates holes that damage the deeper layers of the tooth, leading to visible decay.
Main causes of tooth decay include:
- Sugary food
- Sugary snacks like chocolate bars, sweetened milk, bread with jam make your child’s teeth more prone to decay.
- It will be more damaging to the teeth if they are given snacks in between meals and multiple breastfeeding throughout the night. (3,4)
- Improper brushing habits
- Kids often miss certain spots when brushing on their own. Plaque (sticky film that contains bacteria) builds up easily, and even with brushing twice a day, poor toothbrushing technique leaves some surfaces unclean. (5,6)
Click to find out the correct toothbrushing technique and how to choose the right toothpaste and toothbrush for you child.
- Kids often miss certain spots when brushing on their own. Plaque (sticky film that contains bacteria) builds up easily, and even with brushing twice a day, poor toothbrushing technique leaves some surfaces unclean. (5,6)
- Not enough fluoride
- Fluoride strengthens enamel (outer layer of the teeth). We can obtain fluoride through food and tap water, and most importantly, fluoridated toothpaste. (7)
- Genetic factors
- Some children naturally have less saliva flow. Therefore, their teeth are prone to decay because they lack the protective components from saliva. (8) Another important factor is the enamel quality. When enamel is not formed properly, the teeth will become weaker and easier to wear or decay.
Home Remedies: What Works and What Does not
When your child has a toothache, you may find a lot of home remedies online. Here is what you should know:
1. Tea bag compress
Tea bag may reduce pain and swelling but its effect is temporary. Hence, it should not replace seeing the dentist to fix the tooth decay. (9
2. Clove oil
Clove oil contains a compound called eugenol, which can numb pain for a short time but be careful — it can irritate the gums if use undiluted. (10)
3. Salt water rinses
Rinsing with salt water can reduce bacterial growth temporarily but it will not fix the tooth decay. (11)
4. Tooth spray
Recently, some online sellers have been promoting anti-cavity baby oral sprays, claiming they help prevent tooth decay. However, using products without clearly listed ingredients or purchasing from unauthorized sellers can be dangerous. If you are unsure, always consult a healthcare professional before using any oral care product on your child.
5. Pain relief medications
Paracetamol is one of the most easily available painkillers. It can help with mild toothache but the effect is temporary.
6. Reducing sugar intake
Cutting down on sugars helps protect teeth, but it will not heal a cavity or stop a toothache.
If you notice white spots, yellow spots, dark spots, or uneven surfaces on your child’s teeth—whether or not they are in pain—take them to a dentist as soon as possible.
Preventing Baby Tooth Decay: Parents’ checklist
Prevention is better than cure. Parents can protect their child’s teeth by focusing on two main areas: good brushing habits and a healthy diet. (12)
Brushing habits
- Start brushing early
- Children need time to adapt to new habits. Clean your baby’s gums with a soft cloth from birth. Once the first tooth appears, use a soft toothbrush with a smear of toothpaste that contains fluoride.
- Brush twice daily
- Brush once during the day and always brush before bedtime. Avoid giving any food or sugary drinks after the night brushing.
- Use the right amount of toothpaste
- Always choose toothpaste with at least 1,000 ppm fluoride.
- Under 3 years: use a smear (grain-of-rice size) to prevent swallowing too much fluoride.
- Ages 3 and above: use a pea-sized amount is enough.
- Under 3 years: use a smear (grain-of-rice size) to prevent swallowing too much fluoride.
- Always choose toothpaste with at least 1,000 ppm fluoride.
After brushing, encourage your child to spit, not rinse. If they cannot spit yet, wipe away excess toothpaste with a clean, damp cloth—but leave some residue to maximize the protective effect from fluoride.
- Parents’ guidance during brushing
- Children between age 1-6 can practice brushing themselves, but parents should always finish the job to ensure all surfaces are cleaned. Never allow children to eat or lick toothpaste directly from the tube.
Diet
- Limiting amount of sugary food and drinks
- Limit sugary foods and drinks early on to prevent children from developing a strong preference for sweets.
- Smart eating habits
- Keep snack times close to regular mealtimes to limit the total time teeth are exposed to sugar. Do not eat sweetened food and drinks before bedtime and after toothbrushing at night.
- Offer tooth-friendly snacks
- Avoid using sugary snacks—like chocolate, sweets, or flavoured milk—as rewards. Instead, offer healthier options like fruit or cheese, which are high in calcium that can keep the teeth strong.
- Drink more water
- According to AAPD (4), children aged 1-5 benefit from drinking fluoridated water, especially between meals or snacks. Fluoride helps strengthen teeth and reduce risks of cavities.
Last but not least, regular dental visits are essential for preventing tooth decay. These check-ups give parents the opportunity to learn effective ways to keep your child’s teeth healthy. Also, it allows the dentist to detect and treat early signs of decay before they become serious.
What to expect at a dental visit?
Regular visits to the dentist are important for keeping healthy teeth.
First, the dentist will ask you a few questions to know more about your child’s general health condition, eating and brushing habits. Then, the dentist will do a gentle exam on your child’s teeth.
Depending on how bad a tooth decay is, the dentist may suggest dental treatments such as:
- Fluoride varnish:
- A gel that is wiped on the tooth surfaces to strengthen teeth
- Dental fillings:
- The decayed part of the tooth is cleaned out, and the hole will be filled with a safe filling material
- Pulp treatment and crown:
- If the decay has gone very deep and cause infection, the dentist will carry out cleaning of the tooth root before placing a crown to protect the tooth
- Tooth removal
- If the tooth is badly damaged
Your dentist may show you how to brush your child’s teeth correctly — bringing your child’s own toothpaste and toothbrush can be helpful.
Conclusion
Dear parents, do not underestimate the importance of keeping the baby teeth healthy. They are essential for eating, speaking, and smiling with confidence. Healthy baby teeth also guide the proper growth of adult teeth, setting the foundation for a lifetime of good oral health. Remember—children’s dental care starts at home, with parents playing the most important role. By fostering good habits early, scheduling regular dental visits, and making smart dietary choices, you can protect your child’s smile today and for the years to come.
References
- Zafar S. Early childhood caries (ECC): aetiology, clinical considerations and consequences and management. International Dentistry Australasian Edition. 2009 Jan 1;4:26–36.
- Vittoba Setty J, Srinivasan I. Knowledge and Awareness of Primary Teeth and Their Importance among Parents in Bengaluru City, India. Int J Clin Pediatr Dent. 2016;9(1):56–61.
- Anil S, Anand PS. Early Childhood Caries: Prevalence, Risk Factors, and Prevention. Front Pediatr. 2017 July 18;5:157.
- American Academy of Pediatric Dentistry. Policy on Early Childhood Caries (ECC): Classifications, Consequences, and Preventive Strategies. Ref Man Pediatr Dent. Chicago, Ill.: American Academy of Pediatric Dentistry; 2020:79–81.
- Gudipaneni RK, Patil SR, Assiry AA, Karobari MI, Bandela V, Metta KK, et al. Association of oral hygiene practices with the outcome of untreated dental caries and its clinical consequences in pre‐ and primary school children: A cross‐sectional study in a northern province of Saudi Arabia. Clin Exp Dent Res. 2021 June 2;7(6):968–77.
- T S, Kumar B S, Datta M, V.T. H, Nisha V A. Prevalence, Severity and Associated Factors of Dental Caries in 3-6 Year Old Children. J Clin Diagn Res. 2013 Aug;7(8):1789–92.
- Department of Health and Social care. Delivering better oral health: an evidence-based toolkit for prevention [Internet]. GOV.UK. 2021. Available from: Link
- Novel impacts of saliva with regard to oral health – PMC [Internet]. [cited 2025 Aug 12]. Available from: Link
- Chatterjee P, Chandra S, Dey P, Bhattacharya S. Evaluation of anti-inflammatory effects of green tea and black tea: A comparative in vitro study. J Adv Pharm Technol Res. 2012;3(2):136–8.
- Haro-González JN, Castillo-Herrera GA, Martínez-Velázquez M, Espinosa-Andrews H. Clove Essential Oil (Syzygium aromaticum L. Myrtaceae): Extraction, Chemical Composition, Food Applications, and Essential Bioactivity for Human Health. Molecules. 2021 Oct 22;26(21):6387.
- Ballini A, Cantore S, Signorini L, Saini R, Scacco S, Gnoni A, et al. Efficacy of Sea Salt-Based Mouthwash and Xylitol in Improving Oral Hygiene among Adolescent Population: A Pilot Study. Int J Environ Res Public Health. 2021 Jan;18(1):44.
- Zou J, Du Q, Ge L, Wang J, Wang X, Li Y, et al. Expert consensus on early childhood caries management. Int J Oral Sci. 2022 July 14;14(1):35.
