Skip to content

Ten basic dental facts you all should know



You are clerking a young boy and you notice that he has lots of visibly rotten teeth. You’re shocked as he is is only 4 years old. You ask his mother about his teeth and she says,

“We always brush his teeth every day” .
“He doesn’t really eat sweets”.

You ask if she has taken him to see the dentist and she replies, “We can’t find any dentists who are taking NHS patients at the moment”.

This scenario is not unusual: around one-in-four 5-year-olds have dental decay, affecting, on average, three or four teeth. There is no substitute for seeing a dentist and getting a personal dental plan, but with a shortage of NHS dental appointments and the knock-on effects of COVID, it may be some time until the child is seen. This, added to the fact that children’s oral health has been found to deteriorate in hospitalised children, means that we should do more than advise a child to see a dentist.

A good place to start is to know the basic public health messages around oral health.

Here are some facts to help improve children’s oral health:

Brush teeth twice a day

Teeth and gums should be brushed twice daily for a minimum of 2 minutes. The most important time is last thing before bed due to the decreased saliva production at night. Saliva’s antibacterial properties act as a natural defence against bacteria, neutralise acid levels in the mouth and help wash away food remnants.

Spit, don’t rinse

After 2 minutes, spit the toothpaste out but do not rinse with water or mouthwash, as this will wash away the fluoride from the toothpaste. Leaving fluoride on the teeth helps protect them between brushing and maintains the fluoride concentration levels.

Don’t brush straight after eating

The pH in the mouth decreases straight after consumption of food, leading to demineralisation of the enamel – wait 30 minutes after eating before brushing.

Check that you are using the right amount of fluoride

Toothpaste that has fluoride in it helps to keep the teeth and gums healthy. The amount of fluoride can be checked on the toothpaste label.

Try and keep food to mealtimes

Children are less likely to get decay if their teeth are given a rest from food and drink other than water between meal times. If children are snacking in between, consider the following less cariogenic snacks:

  • Fresh fruits (choosing fruits that are low in acidity and sugar – like berries, peaches and apples)
  • Cheese/dairy-free alternatives
  • Cucumber/carrot sticks
  • Breadsticks
  • Crackers
  • Unsweetened or plain milk/yoghurt

Brush teeth together

All children should be supervised with their brushing until around the age of 7. 

Change toothbrushes regularly

Your toothbrush should be changed every three months.

Avoid sugary medication

Advise parents to choose sugar-free medicine options.

Take children to see the dentist early and regularly

Parents should be encouraged to take their children to the dentist as soon as the first tooth appears (around 3-6 months old), and all children should see a dentist by age 1. Children can see an NHS dentist for free until 18 years old (or 19 years if in full-time education). The time between appointments should be at most 12 months.

How to find a dentist

In the UK, families who do not have a regular dentist with a dental emergency can call 111, which will provide details of an urgent dental service. To find a regular NHS dentist, the NHS website has a link titled “search for an NHS dentist near you”, and there is a contact number for NHS England Customer Contact Centre if they cannot find a dentist accepting NHS patients. (, accessed 5th October 2022).


Resources for parents


Health Education England (HEE), (2019) Mini Mouth Care Matters: A guide for hospital care professionals. V1. Available at:

Public Health England (PHE), (2017) Delivering better oral health: an evidence-based toolkit for prevention. Third Edition. Available at: uk/government/uploads/system/uploads/attachment_data/ file/605266/Delivering_better_oral_health.pdf


  • Rosanne is a PEM Registrar currently working in London. She has undertaken a master’s in Public Health and is passionate about how we can use the ED to help tackle the broader fundamental issues facing children and young people.

  • Navneet Bhamra BSc BDS MFDS (RCPS) Glasg. Navneet qualified as a dentist in 2019 and is currently undertaking her second year as a Dental Core Trainee. She has previously worked at the Royal London Dental Hospital as a Paediatric Dental Clinical Fellow and is currently working in Community Dental Services focusing on paediatric and special care dentistry.



Paediatric acute respiratory distress syndrome (PARDS)

, ,

The Oxy-PICU trial

, , ,
Copy of Trial (1)

Bubble Wrap PLUS – April ’24

PaedsPlacement HEADER

A Medical Students Guide to Paediatrics

Social admsissions

The Silent Crisis: The impact of paediatric hospital social admissions


Haemolytic Uraemic Syndrome

Copy of Trial (1)

Bubble Wrap PLUS – March ’24

Plagiocephaly HEADER

An approach to the infant with plagiocephaly

Copy of Trial (1)

The 79th Bubble Wrap x Bristol Royal Hospital For Children

Brivudine HEADER

Brivudine for immunocompromised children with herpes zoster


NIV for status asthmaticus

Baby Check HEADER

The eight-week check

GameAware HEADER

Building Healthier Relationships With Gaming

Genitourinary symptoms in younger children

Conjunctivitis HEADER

Conjunctivitis in kids

Leave a Reply

Your email address will not be published. Required fields are marked *