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Singapore's Tooth Decay Problem Is Bigger Than Most People Realise
Singapore’s healthcare system ranks among the best in the world, yet its national oral health surveys keep turning up the same uncomfortable finding: most adults are walking around with untreated dental problems they don’t know about. It’s not a niche issue — it shows up across age groups, and it gets worse, not better, as people get older.
Quick answer
Singapore’s 2019 National Adult Oral Health Survey found untreated tooth decay in 34.8% of adults and moderate-to-severe gum disease in 56.9%, rising sharply with age. Regular checkups catch most of this before it becomes painful or expensive — which is the main argument for a dental clinic that’s actually convenient to get to, like TeethQ’s neighbourhood branches across Hougang, Punggol, Sengkang, Kovan, Dakota and Tampines.
What the national data actually shows
The most recent nationally representative figures come from the 2019 National Adult Oral Health Survey (NAOHS), which examined over 660 adults as part of a broader study of more than 12,000 households and was published in Community Dentistry and Oral Epidemiology in 2024. The headline numbers are stark.
34.8%
of adults have untreated dental caries (cavities)
77.6%
have some degree of periodontal (gum) disease
56.9%
have moderate-to-severe chronic periodontitis, worse with age
Source: National Adult Oral Health Survey (NAOHS), Community Dentistry and Oral Epidemiology, June 2024.
It gets more pronounced with age. A separate 2019 survey of over 12,000 Singapore households found that up to 80% of adults over 60 have dental decay, and nearly 90% have mild to severe gum disease. An earlier national study put a sharper number on the worst-case outcome: 31% of Singaporeans aged 60 and above have lost all of their teeth, a rate notably higher than the 17–20% seen in other developed nations.
None of this is really about bad luck. Commentary on the 2019 survey pointed to widespread neglect of preventive dental care as the underlying driver — years of accumulated plaque, untreated cavities and gum disease that turn dental care reactive, complex and expensive once it’s finally addressed. Tooth decay and gum disease remain the two most common dental diseases in Singapore, and both are largely preventable with regular care.
Why untreated decay matters beyond the tooth itself
Skipped checkups don’t just risk a bigger filling later. Untreated tooth decay can progress to pain, infection and eventual tooth loss, which in turn affects eating, speech and social confidence — and the pattern compounds: the longer a problem goes unaddressed, the more invasive (and expensive) the eventual treatment tends to be.
Where TeethQ Dental Surgeons fits in
One practical reason preventive care gets skipped is simple friction — a dentist that’s a 40-minute detour from home or work loses out to “I’ll go next month.” TeethQ Dental Surgeons has built its network the opposite way: general dental clinics placed inside the neighbourhoods people already live in, across Singapore’s North-East and East.
TeethQ’s clinics currently cover:
Hougang Green — Hougang Street 51
Matilda Portico — Punggol
Fernvale Woods — Sengkang
Hougang RiverCourt — Kovan
Dakota Breeze — Dakota
Tampines GreenGem — Tampines
The clinics offer general and specialist dental treatment — scaling and polishing, teeth whitening, dental braces, wisdom teeth surgery, dental implants and Invisalign among the range of services — and clinic listings show they’re associated with several recognised Singapore dental bodies:
ADSS — Aesthetic Dentistry Society Singapore
SDA — Singapore Dental Association
SDC — Singapore Dental Council
AOS — Association of Orthodontists, Singapore
Inside a TeethQ clinic
The practical takeaway
The survey data is clear that most of Singapore’s dental problems are preventable with routine care rather than expensive treatment. The main barrier isn’t usually cost or awareness — it’s convenience. A clinic within a short walk of home, open into the evening on weekdays, removes most of the excuse for putting off a checkup.
Find your nearest TeethQ branch
Check hours, addresses and book online across the North-East and East zones.