Get 15 months interest free* financing available now

Tooth Decay Statistics & Facts Australia

Smile now, pay later with Afterpay

Afterpay logo at Aesthetic Dental and Denture Clinic

The mouth-watering aroma of sausage sizzles, grilled chicken, and unique seafood delicacies on a barbecue wafts during picnics and gatherings vividly depict how Australians frolic eating. While most people enjoy food, it’s an issue for those with poor oral hygiene, including how they adequately brush or floss their teeth.

Australia’s Oral Health tracker revealed that only half of adults brush their teeth twice daily as advised, with brushing habits declining with age. That primarily contributes to 90% of adults having some form of tooth decay, while one-third of youngsters have rotting baby teeth. 

Without adequate oral treatment and care, Aussies are likely to encounter horrendous dental crises. Read on to explore Australia’s key statistics on tooth decay, including its prevalence, trends, and preventive measures. 

Overview of Tooth Decay in Australia

Can tooth decay easily develop? Tooth decay starts when excessive food particles become clogged or stuck on teeth. Oral bacteria then consume these free sugars, secreting acid to soften tooth enamel. This process creates small holes (cavities), compromising tooth structure.

High sugar intake speeds up the destructive acid formation in the teeth. When left untreated, dental decay can progress and lead to tooth loss. It can occur on any tooth surface, explaining why it’s a health issue for all age groups. 

Let’s discover the prevalence of tooth decay across Australia.

Current Statistics on Tooth Decay

A national study on oral health status reported that Australian children had about 0.5-1.5 decayed teeth in 2012-14. Meanwhile, adults aged 15 and above have 11.2 decayed (including missing or filled) teeth in 2017-18. On a national scale, about 1 in 3 Aussie adults has untreated tooth decay. 

Even though children tend to consume more sugar, tooth decay is still more prevalent among adults. This higher incidence reflects that decay is often neglected in younger years until it results in lost or missing teeth. Not to mention that adults frequently encounter inadequate dental care access and a busier lifestyle to focus on oral health.

Historical Trends in Tooth Decay Rates

Has tooth decay rates dwindled over the past decades? When dental decay occurs in baby teeth, it typically exfoliates to grow new ones. However, decaying adult teeth are lost because they can’t regrow.

Before being permanently lost or filled, teeth often undergo cavities or decay. As decay rates decline over the decades, this also lowers the incidence of missing and filled teeth among Australian adults. The average number of decayed teeth (missing and filled) has dropped by 11.2 in 2017-18, from 12.6 in 2004-06 and 14.9 in 1987-88.

Age group trends in dental decay experience among dentate Australians aged 15 years and over, 1987–88, 2004–06, and 2017–18 


Source: National Study of Adult Oral Health 2017–18

Even though the decay rate is only around 0.6-1.5 teeth among adults, it advances with age. Overlooking this dental issue can result in toothache, tooth sensitivity, or gum inflammation. Dental filling is crucial to restore the tooth’s form and function at earlier decay stages.

Prevalence of Tooth Decay by Demographics

Dental decay is a key indicator of the country’s oral health status. The greatest burden among patients with poor oral health is the lack of robust dental care. Let’s uncover how extensive dental decay affects each age group across Australia. 

Tooth Decay in Children 

Is tooth decay more common in children? While it’s a common misconception, decay rates vary depending on the age group. Around 1 in 4 (23.5%) Australian children aged 6-14 experienced dental decay in 2012-14. Of this proportion, there’s a higher dental decay incidence among Indigenous children (36%) than non-Indigenous children (23%).

Based on the graph below, about 38.2% of children aged 12-14 had caries in their permanent teeth. This figure is concerning because children’s permanent teeth stop growing at this age. In addition, 1 in 10 children (11%) had at least one permanent tooth with untreated decay.

Healthy teeth interactive 2: Proportion of children aged 5–14 years with tooth decay, by selected characteristics, Australia, 2012–14

 

Source: Oral health and dental care in Australia, Healthy teeth – Australian Institute of Health and Welfare

Tooth Decay in Adults and Seniors

Data showed that only 1 in 9 Australian adults had never experienced dental decay in 2017-18. Consequently, dental caries affect about 11.2 adult teeth. While young adults typically have four decayed or rotten teeth, this increased to 10 in middle adulthood. Meanwhile, tooth decay impacts between 19 and 24 teeth in Australian senior patients.

Risk Factors Contributing to Tooth Decay

So, what’s propelling the high tooth decay rates across Australia? Understanding what factors influence dental decay is key to curbing this dental issue. As such, let’s delve deeper into the data-driven insights of risk factors contributing to this prominent oral concern. 

Diet and Sugar Consumption

Studies show that consuming too much sugar increases the risk of developing dental caries. Free sugars fuel decay-causing bacteria, speeding up decay. In 2017-18, 1 in 14 (7.1%) children and 1 in 11 (9.1%) adults over consumed sweetened drinks daily. 

The figure below shows that Australian adults aged 18-24 consumed 14% sugar, exceeding the 10% sugar intake limit. This also explains the higher incidence of dental decay among Aussies upon reaching middle adulthood. When left neglected, this increases the risks of older people encountering severe oral issues.

 

Source: National Oral Health Plan 2015–2024: performance monitoring report

Oral Hygiene Practices

Ineffective oral hygiene can lead to plaque accumulation, increasing the risks of dental decay. About two-thirds of Australian children brush their teeth twice daily in 2012-14. Yet, around 42.6% of Australian children still had visible plaque accumulation, reflecting that brushing is insufficient to curb decay.

On the other hand, almost all (97%) Australian adults brushed their teeth once daily in 2017-18. While that’s promising, this infrequent brushing suggests why dental decay is still high among adults. Besides toothbrushing, flossing and regular checkups are essential to curtail decay risks.

Access to Dental Care

Patients with less dental care access are likely to have untreated decay. For example, cases of untreated decay are twice as high for children living in remote areas (22%) than those living in major cities (9.9%). Among Australian adults, those who visit the dentist for a problem have the most untreated cavities (43.5%), while those who go for checkups have the fewest (24.3%). 

Socioeconomic Factors

Delaying dental visits due to costs is the prime reason tooth decay is often left untreated. The ADA disclosed that almost two-thirds of Australians don’t visit the dentist yearly due to affordability concerns. Moreover, reports showed that children in low-income households have more untreated decay than those in medium—to high-income households. 

Limited dental care access, lower health literacy, and insufficient dietary habits also lead to poor oral health. The good news is that Australia has initiatives like the Child Benefit Dental Schedule (CBDS) to curb severe decay among children’s dental conditions.

Impact of Tooth Decay on Overall Health

After breaking excess enamel, severe tooth decay gets deeper into your tooth. In the later stages of decay, your tooth discolours into yellow-brown or black, often infecting the gum line. Harvard Health indicates that patients with gum disease have two to three times the risk of having a heart attack, stroke, or other serious cardiovascular illnesses.

What’s more alarming is that oral infections due to decay pose a critical risk for diabetic patients. That’s because gum lesions heal slower due to high blood glucose levels. Dentists addressing this issue implement highly safe procedures to minimise any additional oral injuries.

Quality of Life and Psychological Effects

Besides systemic health concerns, neglected tooth decay can harm patients’ self-esteem and affect how they look, eat, speak, and socialise. At worst, patients may experience nutritional deficiency due to the inability to chew various nutritious foods. 

Around one-third of Australian adults felt uncomfortable with the appearance of their teeth, mouths, or dentures in 2017-18. A record high of 37.9% of adults aged 45-64 were anxious about their oral looks, up from 30.7% in 2013. The chart also shows an increase of 10% among young adults within the five-year gap (22.3% vs. 32.6%).

Prevention and Treatment of Tooth Decay

Given the prevalence of tooth decay, are there actionable ways to avoid it? One prime preventive measure is water fluoridation, a safe strategy to reduce dental decay incidence at scale. The great news is that 89% of Aussies have access to fluoridated drinking water.

Australia’s national study reveals that water fluoridation reduces tooth decay by 26-44% among children and by 27% in adults. Even in dental clinics, fluoride treatments help remineralise enamel and halt the early stages of tooth decay. Other preventive methods include fissure sealant, which protects tooth surfaces susceptible to developing caries. 

One-quarter of Australian children had at least one fissure sealant in their permanent teeth. The fissure sealant application needs frequent replacement, typically every 3-4 months. That explains why dental checkups are key to impeding dental decay, giving you other treatment options should decay progress.

Importance of Regular Check-Ups

Routine checkups are key to detecting early signs of decay. Professional cleanings extensively remove plaque and tartar that can’t be eliminated with regular brushing or flossing, curtailing tooth deterioration. Across all ages, Aussies who frequently visit for a check-up only had 0.7 decayed teeth surface compared to those who delay or avoid it (2.7 decayed teeth).

Modern Treatment Options

As dental decay incidence spikes among Aussies, innovative treatments prioritise tooth preservation and patient comfort. Below are some of the latest advancements in tooth decay treatment. 

Air Abrasion: Uses fine abrasive particles to scrape decay and minimise damage to healthy teeth and tissue. 

Laser Dentistry: Employ precise laser beams to eradicate dental decay without the need for traditional drilling.

Diagnodent: A laser examination tool that scans, locates, and diagnoses small cavities, allowing for early detection and preventative treatment.

Dental Inlays & Onlays: More damage-resistant than traditional fillings, this custom-made restoration conceals large cavities and protects teeth from decay.

Dental Crown: A cap-like restoration that covers a damaged tooth from excessive decay, protecting and restoring its size, shape, and function. 

Government and Public Health Initiatives

Given that nearly one-third of Australian adults have untreated dental decay, the country targets lowering this prevalence by 20.4%. Meanwhile, 23.5% of children still have experienced decay, which the country aims to reduce by 21.2% in 2025.

The state’s dental programs, like the Child Dental Benefits Schedule (CDBS), are one primary contributor to dwindling decay rates among children. Policies on community water fluoridation have also substantially reduced tooth decay rates across the country. Despite these efforts, education campaigns and public awareness remain stagnant to combat this dental ailment.

Future Outlook and Trends in Tooth Decay Prevention

Digital dentistry is reshaping Australia’s dental landscape. Advanced imaging techniques like 3D intraoral scanners allow precise, early detection of dental decay, aiding in personalising treatment plans. Moreover, AI-powered diagnostic tools analyse vast patient data to spot risk factors, predict decay progression and tailor preventive measures.

As Aussies shift towards healthy dietary choices, it contributes to declining tooth decay rates. Targeted public health campaigns are essential as oral hygiene routines lessen with age. Beyond these, seeking innovative dental providers like Aesthetic Dental Clinic is a collective health consciousness to ensure tooth decay is a thing of the past.  

Secure Extra Dental Protection With Our Expert Care

Despite the high prevalence of tooth decay in Australia, about two-thirds of Aussies still delay dental visits. Untreated dental decay unfavourably impairs how you eat, speak, and socialise. Besides good oral hygiene, dental checkups offer early prevention against decay.

At Aesthetic Dental Clinic, we use cutting-edge technologies and tools in checkups to swiftly diagnose dental issues. We employ innovative preventive techniques to expedite pain-free treatments. We offer personalised treatments to address your dental concerns expertly.

Contact us at 02 4655 4438 or book an appointment for top-notch specialised dental care.

Frequently Asked Questions

What are the most common causes of tooth decay in Australia?

Australians’ excessive intake of sugary foods and beverages fuels oral bacteria, which produce acid to crumble tooth enamel. Due to inadequate hygiene, diet, and dental services, tooth decay worsens. Left untreated, it harms healthy teeth, gums, and tissues.

How prevalent is tooth decay among Australian children?

About 42% of children aged 5-10 had deciduous (baby) tooth decay, and 1 in 4 (27%) had at least one untreated tooth decay in 2012-14. Meanwhile, around 1 in 4 children aged 6-14 had decay in their permanent teeth, with 11% remaining untreated. 

What preventive measures can I take to reduce my risk of tooth decay?

In addition to brushing twice daily, opt for toothpaste with adequate fluoride levels to prevent tooth decay. Flossing is also crucial to remove clogged food particles from teeth crevices. Limit sugary and acidic food, which can erode enamel and promote decay. Schedule regular checkups and cleanings, ideally every six months, so your dentist can identify and treat oral issues early on.

How does sugar consumption affect tooth decay rates?

Higher sugar intake increases your chance of developing dental decay. Bacteria lining your oral region feed on free sugar and release acid as a byproduct. This acid erodes the tooth enamel, creating small holes that get deeper if left untreated, often resulting in tooth loss. 

What treatments are available for tooth decay at Aesthetic Dental Clinic?

At Aesthetic Dental Clinic, we provide comprehensive preventive treatments for tooth decay, including fillings, crowns, fluoride treatments, and sealants. We employ the latest technologies and tools to detect early decay signs. Our expert dental team personalise hygiene and treatment plans to help you avoid tooth decay. 

 

Get a smile you’re happy with

We have an expert team of aesthetic dentures and dentists that take pride in providing expedited and quality care.

Everything in-house

Pain-free dental services and perfectly matched dentures are a reality with our in-house laboratory.

Everything in-house - Aesthetic Dental and Denture Clinic

Didn’t find what you’re after?

Related Services

same day veneers

Same Day Porcelain Veneers

The easiest and cheapest way to brighten your mood, as well as that of the people around you, is with a smile.
View Service
Visit To The Dentist - Aesthetic Denture Clinic

Teeth Whitening

Teeth whitening is perfect if you’re living with lower self esteem and want to give yourself a boost.
View Service
Wisdom Teeth - Aesthetic Denture Clinic

Wisdom Teeth

Wisdom teeth are located at the back of your mouth and are classed as the third molar teeth.
View Service
medibank-logo at Aesthetic Dental and Denture Clinic

We are a preferred Medibank Denture Provider

We also accept all other major health funds

Customer Stories

5.0
Elias is fantastic. His work is amazing. And his approach to us as a customer was extremely comforting. He has given my husband a whole new meaning to his self esteem and he actually loves to smile. All thanks to Elias amazing work. Read more

Sarah-Marie Urzino

A year ago

5.0
My daughter got her mouthguard moulded and made through these guys, the process was amazing and they made my daughter feel at ease. She is so happy with her new sparklie mouthguard with her name on it! I Highly recommend Elias and Tamica. Thank you very much Read more

Karen Halse

A year ago

5.0
Elias went above and beyond to replace my Denture after an accident over New year. Super friendly service and above all the most comfortable denture I have ever had. Highly recommend!! Thankyou. Read more

Mark Halliday

A year ago

5.0
From my first phone call to Tomika explaining my situation with my teeth and how bad they were and that I didn't know where to start, to having my first free appointment with Elias was the best thing I have ever done. Tomika is very easy to talk to, friendly and professional. Elias, well he is great, told me exactly what he could achieve, the cost and the timeframe and he was spot on. Read more

Kim Lennon

6 months ago

5.0
Elias prepared a full set of dentures for my 90 year old mother. The service he provided was exceptional, using current technology effectively to create a set of dentures which were far superior to what she had previously had. Elias also made it very clear that my mother could go back at any time if minor adjustments were required. He gives meticulous attention to detail. Tamika ensures that appointments run to time. Read more

Janelle Horton

10 months ago

5.0
Loving my new dentures, professional friendly service 5 stars all round. Would highly recommend this practice. Thanks guys.. Read more

Deidre Bell

6 months ago

5.0
State of the art technology and skills and ability to match. I went to the clinic highly anxious ( my previous dental encounter at another clinic resulted in a panic attack and blacking out twice whilst in the chair) due to the poor integrity of my teeth, as a direct result of a health condition I had lost the majority of my teeth and the remaining were nothing short of a train wreck. Elias treated me the utmost respect and kindness. Read more

Meghan Stafford

2 months ago

Faqs

A denture is a removable replacement for missing teeth. At Aesthetic Dental and Denture Clinic, we offer two types of denture, complete and partial. Complete dentures are necessary when all your natural teeth are missing. A partial denture is used when some natural teeth remain. If you are having extractions, we can also provide you with an immediate denture. This is often an interim denture so you can avoid the embarrassment of being without teeth.

A denture usually lasts between five and seven years. Time and natural changes in the mouth will affect the fit and wear patterns of your denture. If your denture is worn and doesn’t fit as well as it used to, it may require a repair or reline. Having your denture checked every two years will help to ensure a proper fit and by following your denture care instructions, you’ll extend the life of your replacement teeth. 

Dentures don’t last forever. Dentures usually last between 5 to 7 years and need to be relined every 1 to 2 years. Over time dentures become worn and don’t fit as well, so it’s important to reline them regularly. The better you follow your denture care instructions, the longer your replacement teeth will last. 

It is advised that you visit your dentist every 6 months for a check-up and clean. This will help to prevent any major oral health issues from occurring. However, if you have bad breath, bleeding gums, discoloured teeth, cracked or chipped teeth, tooth or jaw pain it is advised to make an appointment with your dentist as soon as possible.

At Aesthetic Dental and Denture Clinic, we know attending the dentist can be difficult for nervous and anxious patients. We offer a number of options to help make your next visit as calm and stress-free as possible. Contact us today and a friendly dental technician will be able to give you all the options available. 

Get Your Consultation

At Aesthetic Dental and Denture Clinic, we pride ourselves on providing high quality dental and denture services while building long-lasting client relationships.
5.0
Elias is fantastic. His work is amazing. And his approach to us as a customer was extremely comforting. He has given my husband a whole new meaning to his self esteem and he actually loves to smile. All thanks to Elias amazing work. Read more

Sarah-Marie Urzino

A year ago

Fill in your details below

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Your enquiry is completely private. We appreciate that dental and denture enquiries are often time-sensitive and we will endeavour to return your enquiry as soon as possible.

We also accept all major health funds

medibank-logo at Aesthetic Dental and Denture Clinic
cua-logo at Aesthetic Dental and Denture Clinic
frank-logo2 at Aesthetic Dental and Denture Clinic
nib-logo at Aesthetic Dental and Denture Clinic
bupa-logo at Aesthetic Dental and Denture Clinic
nrma-logo at Aesthetic Dental and Denture Clinic
hbf-logo at Aesthetic Dental and Denture Clinic
st-george-logo at Aesthetic Dental and Denture Clinic