One of the most common questions parents ask at Chutti's is some version of: "Does it really need to be treated? It's only a baby tooth." It is a fair question — and the answer matters more than most parents expect.
A cavity in a milk tooth will not heal itself
Tooth decay is caused by bacteria that produce acid when they feed on sugar. That acid dissolves enamel. Once the process has started and created a hole, the tooth cannot repair itself. Unlike a skin graze, a cavity does not close over. Left untreated, it deepens — through the enamel, into the softer dentine beneath, and eventually toward the pulp (the tooth's nerve and blood supply).
The American Academy of Pediatric Dentistry (AAPD) classifies early childhood caries (ECC) — decay in children under 6 — as one of the most prevalent chronic diseases in childhood and states clearly that it requires clinical management. It does not resolve without treatment.
What is bottle caries / baby bottle tooth decay?
You may see the terms "bottle caries", "baby bottle tooth decay" or "nursing caries" used interchangeably. They all refer to the same pattern: decay caused by frequent or prolonged exposure to sugary liquids — including milk, formula and fruit juice — particularly when given in a bottle at bedtime or during sleep.
The upper front teeth are affected first and most severely, because they are the teeth most bathed in liquid from a bottle. Decay appears initially as white chalky patches near the gum line, progressing to brown and black. This pattern is distinctive and worth acting on early — before the upper front teeth are destroyed.
The AAPD's 2023 Policy on Early Childhood Caries identifies bottle feeding at nap or bedtime and frequent consumption of sugary drinks as the primary modifiable risk factors.
Why treating baby teeth matters
There is a persistent belief that milk teeth "don't matter" because they fall out anyway. The evidence does not support this.
Milk teeth hold space. Each baby tooth acts as a placeholder for the permanent tooth that will grow beneath it. When a baby tooth is lost too early — to decay or extraction — the surrounding teeth drift into the gap, reducing the space available for the permanent tooth. This is a significant cause of crowding and orthodontic problems later.
Decay can affect the permanent tooth forming below. The root of a baby tooth sits directly above the developing permanent tooth. A severe infection in the baby tooth can, in some cases, damage the permanent tooth's enamel before it has even erupted — a condition called Turner's hypoplasia.
Untreated decay causes pain. A child with chronic tooth pain eats less well, sleeps less well and is less able to concentrate. Pain from dental decay is one of the leading causes of school absence in children globally.
Decay spreads. The bacteria responsible for tooth decay are transmissible — between teeth in the same mouth. A heavily decayed mouth represents a higher ongoing risk for all the teeth in it.
What treatment looks like
The treatment depends on how far the decay has progressed:
Early decay (enamel only): a filling restores the tooth and stops progression. In young children, tooth-coloured composite or stainless steel crowns (for back teeth) are the most common options.
Decay reaching the dentine: a filling or crown, sometimes with a medicated lining placed first to protect the pulp.
Decay reaching the pulp: pulp therapy (a "baby root canal") removes the infected pulp tissue and restores the tooth with a crown. This is routine in paediatric dentistry — it preserves the tooth in the mouth until it is ready to fall out naturally.
Tooth cannot be saved: extraction, followed by a space maintainer if the tooth was lost early, to preserve the space for the permanent successor.
For young children or those with multiple teeth affected, Dr. Bhuvanesswari may recommend treating the teeth under laughing gas (nitrous oxide sedation), after assessing whether it is appropriate for your child.
Preventing decay in baby teeth
The AAPD recommends: clean the mouth even before teeth appear — use a damp cloth on the gums after feeds. From the first tooth: brush twice daily with a rice-grain amount of fluoride toothpaste. Avoid bottle feeding at nap or bedtime with anything other than water. First dental visit by age 1, or when the first tooth appears — whichever comes first. Caries-risk assessment at each visit, with personalised prevention advice.
Sources: American Academy of Pediatric Dentistry, Policy on Early Childhood Caries (ECC), 2023; American Academy of Pediatric Dentistry, Guideline on Caries-risk Assessment and Management for Infants, Children and Adolescents, 2023; American Academy of Pediatric Dentistry, Guideline on Pulp Therapy for Primary and Immature Permanent Teeth, 2023.